OVERHEAD DOOR M68R Mechanical Pit Leveler Instruction Manual

June 16, 2024
OVERHEAD DOOR

M68R Mechanical Pit Leveler

Product Information

Specifications

  • Model: M68R
  • Manufacturer: [Manufacturer Name]
  • Date of Revision: 01/04/2024

Terminology and Definitions

Danger: Indicates a hazardous situation that,
if not avoided, will result in death or serious injury.
Warning: Indicates a hazardous situation that, if
not avoided, could result in death or serious injury.
Caution: Indicates a hazardous situation that, if
not avoided, could result in minor or moderate injury.
Notice: Indicates information considered
important, that is not related to injury but may result in property
damage.
Important: Required key step for proper dock
operation.
Note: Information only.

Precautions

Warning: Operate with caution to ensure safe
installation and operation of the equipment.

  • Danger: Do not stand between the transport
    vehicle and dock leveling device when the transport vehicle is
    entering or leaving the area. Getting pinned between the transport
    vehicle and the leveler will cause death or serious injury.

  • Danger: The dock leveler swings with
    considerable force. Activating the dock leveling system with anyone
    under or in front of it will cause death or serious injury.

  • Danger: Keep hands, feet, and other appendages
    clear of hinges and other pinch points when moving, installing,
    operating, servicing, or otherwise manipulating the dock leveling
    system. This system is heavy and moves with considerable force,
    capable of severing appendages and causing serious injury or
    death.

  • Danger: The total weight of the loading
    vehicle and load should never exceed the dynamic load capacity
    listed on the serial number and model tag. Overloading a dock
    leveling device beyond its manufacturer rated dynamic capacity will
    damage it or cause it to collapse, which may result in death,
    serious injury, and/or damage to equipment.

  • Warning: Chock/restrain all transport
    vehicles. Never remove the wheel chocks or release the restraining
    device until loading or unloading is finished, and the transport
    vehicle driver has been alerted. Death or serious injury may occur
    if the transport vehicle inadvertently slips away from the dock
    during loading/unloading.

  • Caution: Do not use a broken or damaged dock
    leveling device or restraining device. Ensure attachment welds are
    not cracked and proper service and maintenance procedures have been
    performed before using. A damaged or detached dock leveling device
    may collapse, causing death or serious injury.

Operation

This section provides instructions for operating the mechanical
pit leveler model M68R.

Operating Instructions

  1. Ensure that all safety precautions are followed before
    operating the pit leveler.

  2. Prior to use, inspect the pit leveler for any visible damage or
    signs of wear. Do not use if any damage is found.

  3. Position the pit leveler in front of the dock opening, ensuring
    it is securely anchored to the ground.

  4. Activate the pit leveler using the designated controls. Follow
    the manufacturer’s instructions for proper operation.

  5. Once the pit leveler is in the desired position, secure it
    using any provided locking mechanisms.

  6. When finished, deactivate the pit leveler and ensure it is
    properly stored.

Owner / User Responsibilities

As the owner/user of the mechanical pit leveler model M68R, it
is your responsibility to:

  • Regularly inspect and maintain the pit leveler according to the
    manufacturer’s recommendations.

  • Train all personnel who will be operating or working near the
    pit leveler on its safe usage and potential hazards.

  • Ensure that all safety precautions and guidelines outlined in
    this manual are followed at all times.

  • Report any malfunctions or issues with the pit leveler to the
    manufacturer or authorized service provider.

Pit Leveler Dimensions

This section provides information on the dimensions of the
mechanical pit leveler model M68R.

Installation Instructions

This section provides detailed instructions for installing the
mechanical pit leveler model M68R.

FAQ

Q: How often should I inspect and maintain the pit

leveler?

A: It is recommended to inspect and maintain the pit leveler
according to the manufacturer’s recommendations. This may include
regular inspections and servicing at designated intervals.

Q: What should I do if I notice any malfunctions or issues with

the pit leveler?

A: If you notice any malfunctions or issues with the pit
leveler, it is important to report them to the manufacturer or
authorized service provider. They will be able to assist you with
troubleshooting and necessary repairs.

OPERATION MANUAL AND INSTALLATION INSTRUCTIONS MECHANICAL PIT LEVELER MODEL M68R

READ COMPLETE INSTRUCTIONS BEFORE INSTALLING DOCK LEVELERS

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

1

TABLE OF CONTENTS
Safety Information…………………………………………………3-5 Terminology And Definitions ………………………………… 3 Precautions …………………………………………………….4-5
Operation ……………………………………………………………6-11 Operating Instructions ………………………………………6-7 Owner / User Responsibilities …………………………..8-11
Pit Leveler Dimensions……………………………………….12-13 Installation Instructions ……………………………………..14-22
Installation Precautions …………………………………….. 14 Installation Instructions………………………………….15-22 Testing And Spring Adjustments………………………….23-25 Troubleshooting …………………………………………………26-28 Maintenance ……………………………………………………..29-31 Replacement Parts …………………………………………….32-46 Warranty ………………………………………………………………. 47

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

2

TERMINOLOGY AND DEFINITIONS
Important Safety Instructions
DEFINITION OF KEY WORDS USED IN THIS MANUAL:
DANGER
INDICATES A HAZARDOUS SITUATION THAT, IF NOT AVOIDED, WILL RESULT IN DEATH OR SERIOUS INJURY.
WARNING
INDICATES A HAZARDOUS SITUATION THAT, IF NOT AVOIDED, COULD RESULT IN DEATH OR SERIOUS INJURY.
CAUTION
INDICATES A HAZARDOUS SITUATION THAT, IF NOT AVOIDED, COULD RESULT IN MINOR OR MODERATE INJURY.
NOTICE
INDICATES INFORMATION CONSIDERED IMPORTANT, THAT IT IS NOT RELATED TO INJURY, BUT MAY RESULT IN PROPERTY DAMAGE. IMPORTANT: Required key step for proper dock operation. NOTE: Information only.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

3

PRECAUTIONS

WARNING

Operational Precautions
Read and understand these instructions to ensure safe installation and operation of the equipment.
DANGER
DO NOT STAND BETWEEN TRANSPORT VEHICLE AND DOCK LEVELING DEVICE WHEN TRANSPORT VEHICLE IS ENTERING OR LEAVING THE AREA. GETTING PINNED BETWEEN THE TRANSPORT VEHICLE AND THE LEVELER WILL CAUSE DEATH OR SERIOUS INJURY.
DANGER
DOCK LEVELER SWINGS WITH CONSIDERABLE FORCE. ACTUATING THE DOCK LEVELING SYSTEM WITH ANYONE UNDER OR IN FRONT OF IT WILL CAUSE DEATH OR SERIOUS INJURY.
DANGER
KEEP HANDS, FEET AND OTHER APPENDAGES CLEAR OF HINGES AND OTHER PINCH POINTS WHEN MOVING, INSTALLING, OPERATING, SERVICING, OR OTHERWISE MANIPULATING THE DOCK LEVELING SYSTEM. THIS SYSTEM IS HEAVY AND MOVES WITH CONSIDERABLE FORCE, CAPABLE OF SEVERING APPENDAGES AND CAUSING SERIOUS INJURY OR DEATH.
DANGER
TOTAL WEIGHT OF LOADING VEHICLE AND LOAD SHOULD NEVER EXCEED THE DYNAMIC LOAD CAPACITY LISTED ON THE SERIAL # & MODEL TAG. OVERLOADING A DOCK LEVELING DEVICE BEYOND ITS MANUFACTURER RATED DYNAMIC CAPACITY WILL DAMAGE IT OR CAUSE IT TO COLLAPSE, WHICH MAY RESULT IN DEATH, SERIOUS INJURY AND/OR DAMAGE TO EQUIPMENT.
WARNING
CHOCK/RESTRAIN ALL TRANSPORT VEHICLES. NEVER REMOVE THE WHEEL CHOCKS OR RELEASE THE RESTRAINING DEVICE UNTIL LOADING OR UNLOADING IS FINISHED, AND THE TRANSPORT VEHICLE DRIVER HAS BEEN ALERTED. DEATH OR SERIOUS INJURY MAY OCCUR IF THE TRANSPORT VEHICLE INADVERTENTLY SLIPS AWAY FROM THE DOCK DURING LOADING/ UNLOADING.

DO NOT USE A BROKEN OR DAMAGED DOCK LEVELING DEVICE OR RESTRAINING DEVICE. ENSURE ATTACHMENT WELDS ARE NOT CRACKED AND PROPER SERVICE AND MAINTENANCE PROCEDURES HAVE BEEN PERFORMED BEFORE USING. A DAMAGED OR DETACHED DOCK LEVELING DEVICE MAY COLLAPSE, CAUSING DEATH OR SERIOUS INJURY.
WARNING
ENSURE THE LIP HORIZONTALLY OVERLAPS THE TRANSPORT VEHICLE BY AT LEAST 4 INCHES (102 MM) BEFORE DRIVING ONTO THE DOCK LEVELING DEVICE. USING A LEVELER WITHOUT SUFFICIENT OVERLAP MAY RESULT IN THE LIP SLIPPING OFF OF THE TRANSPORT VEHICLE AND COLLAPSING, WHICH MAY CAUSE DEATH OR SERIOUS INJURY.
WARNING
MAINTAIN A SAFE DISTANCE FROM BOTH SIDE EDGES WHEN DRIVING ONTO A DOCK LEVELING DEVICE. FALLING OFF THE DOCK LEVELING DEVICE MAY RESULT IN DEATH OR SERIOUS INJURY.
WARNING
USING A DOCK LEVELING DEVICE ABOVE OR BELOW THE ALLOWABLE VERTICAL WORKING RANGE MAY CAUSE IT TO COLLAPSE, CREATE PINCH POINTS, OR CAUSE DANGEROUS LIP RISE, WHICH MAY CAUSE DEATH OR OTHER SERIOUS INJURY.
WARNING
OPERATING MATERIAL HANDLING OR DOCK EQUIPMENT WHILE UNDER THE INFLUENCE OF DRUGS OR ALCOHOL MAY RESULT IN DEATH OR SERIOUS INJURY.
WARNING
DO NOT EXCEED 5 MPH WHEN DRIVING ON OR ACROSS A DOCK LEVELING DEVICE. DO NOT STOP OR ACCELERATE ABRUPTLY WHEN LOADING VEHICLE WHEELS ARE ON THE LIP OR PLATFORM. DRIVE SLOW AND STEADY ACROSS THE DOCK LEVELING DEVICE. FAILURE TO COMPLY COULD CAUSE THE DOCK LEVELING DEVICE TO COLLAPSE, RESULTING IN DEATH OR SERIOUS INJURY.
CAUTION
NEVER LEAVE UNATTENDED EQUIPMENT, VEHICLES, OR MATERIALS ON DOCK LEVELING DEVICE.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

4

PRECAUTIONS CONTINUED…
Operational Precautions Continued…
DANGER
KEEP HANDS, FEET AND OTHER APPENDAGES CLEAR OF HINGES AND OTHER PINCH POINTS WHEN MOVING, INSTALLING, OPERATING, SERVICING, OR OTHERWISE MANIPULATING THE DOCK LEVELING SYSTEM. THIS SYSTEM IS HEAVY AND MOVES WITH CONSIDERABLE FORCE, CAPABLE OF SEVERING APPENDAGES AND CAUSING SERIOUS INJURY OR DEATH.

Figure 1

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

5

OPERATING INSTRUCTIONS

Figure 2
852409-0001 REV- 01/04/2024

SNUBBER CHAIN SPRING
Figure 3

FULL RANGE TOE GUARD

©Copyright 2024 Overhead Door Corporation

6

OPERATING INSTRUCTIONS CONTINUED…
DANGER
Read and follow all instructions, warnings and maintenance schedules in the manual. · Always chock trailer wheels or engage trailer restraint before operating dock leveler or beginning to load or unload. · Never use hands or equipment to move ramp or lip. Using material handling equipment to lower ramp will cause premature wear or damage to the dock leveling
device. · Ensure truck bed supports extended lip or leveler frame supports the ramp before driving on ramp. · Stay clear of hinges and front and sides of moving dock leveler. · Never use damaged or malfunctioning dock leveler. Report problems immediately to supervisor. · DO NOT ENTER THE PIT unless dock leveler is securely supported by maintenance brace and a second means of bracing. FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN DEATH OR SERIOUS INJURY.
WARNING
· Operation and servicing of dock leveler is restricted to authorized personnel. · Before activating dock leveler:
· Ensure trailer is backed up against bumpers. · Remove any end load, if required. · Check trailer alignment to avoid lip interference. If lip does not lower to trailer bed, reposition vehicle. · Before allowing vehicle to leave the dock always: · Ensure no equipment, material or people are on dock leveler. · Return dock leveler to its stored position at dock level. FAILURE TO FOLLOW THESE INSTRUCTIONS COULD RESULT IN DEATH OR SERIOUS INJURY.

EXTENDING THE LEVELER ONTO BED OF TRANSPORT VEHICLE 1. Standing on the warehouse door, grasp the ring connected to the release chain and pull, holding the ring and chain taut while the platform reaches the fully raised position.
Release the ring. 2. Carefully, walk out onto the platform of dock leveler. This will allow the dock to lower, resting its lip onto the transport vehicle.

IMPORTANT: The permitted total gross weight (Load + Loading Equipment [eg: forklift, pallet mover, etc.]) traversing the leveler should not exceed the Dynamic Capacity of the leveler. The Dynamic Capacity is listed as ##K DYN on the SERIAL # & MODEL TAG under “CAPACITY”, where ## is the total gross weight in thousands of pounds. BELOW DOCK ENDLOADING 1. Standing on the warehouse floor, grasp the ring connected to the release chain and pull, holding the ring and chain taut while the platform reaches the fully raised position.
Release the ring. 2. Walk onto the platform, not allowing the lip to fold down. Pull and hold the safety leg chain ring which is located towards the lip-end of the dock leveler. Keep this chain taut
until the leveler descends into the below-dock position. Release the safety leg pull chain ring when the dock leveler lip is resting between the building and the transport vehicle. RETURNING LEVELER TO STOWED POSITION 1. Grasp the ring connected to the release chain and pull, holding the ring and chain taut while the platform reaches the fully raised position. Release the ring. 2. Slowly walk the platform down, allowing the lip to fold down and clear the transport vehicle. Continue to walk toward the end of the platform, until the lip is resting inside the lip keepers and the platform is parallel with the warehouse door.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

7

OWNER / USER RESPONSIBILITIES
GENERAL Like other industrial devices, misuse and improper maintenance of dock leveling devices can result in injury or death.
APPLICATION CONSTRAINTS Use of a dock leveling device shall take application constraints into consideration; including, but not limited to:
a) Site Considerations: 1. Driveway grades. 2. Pit and bumper projections. 3. Loading dock height.
b) Transport Vehicle Considerations. 1. Tractor operations. 2. Shunt truck or yard jockey operations.
c) Material Handling Equipment Considerations: 1. The heaviest material handling equipment and load. 2. The distribution of weight between the material handling equipment’s front and rear axles. 3. Gross vehicle weight (GVW) being driven across the dock leveler. 4. The number of cycles driven across the dock leveler. 5. The speed of material handling equipment moving across the dock leveler. 6. The use of three-wheel vs. four-wheel fork trucks. 7. Attachments on the front end of the material handling equipment. 8. The direction of material handling equipment travel.
d) Dock Leveler Considerations: 1. The life expectancy of the dock leveler. 2. The loading slope above or below dock leveler. 3. The lip length.
In selecting dock leveling devices, it is important to consider present requirements, future plans and adverse environmental conditions.

The owner/user shall provide application information to the manufacturer to receive recommendations on appropriate equipment specifications and capacity.
INSTALLATION PLACARDS AND WARNINGS The owner/user shall ensure that the following are in place, legible, and available to operators:
· Nameplates · Instruction Placards · Safety Signs Or Labels · Operating And Maintenance Manuals The owner/user shall obtain replacement nameplates, instruction placards, safety signs or labels, and manuals from the manufacturer, if needed. Placards, markings, and labels should not be obscured from the view of operating or maintenance personnel for whom Such information are intended. FIXED LEVELING DEVICES If the dock leveling device is recessed in a concrete pit, the top three sides of the recess and driveway end of pit floor shall have steel angles or channels anchored into the concrete as recommended by the dock leveling device manufacturer. FIXED TYPE A fixed type is a structure designed for stationary mounting to the dock, located at either the dock face or recessed into a pit. Placement of the bridging structure into a working or stored position will usually be aided by a mechanism incorporated into the design. MODIFICATIONS TO DOCK LEVELING DEVICES Dock leveling devices can become hazardous if the manufacturer’s instructions regarding modifications or adjustments are not followed. Modifications or alterations of dock leveling devices shall be made only with written permission of the original manufacturer. These changes shall be in conformance with all applicable provisions of the latest ANSI MH30.1 standard and shall also satisfy all safety recommendations of the original equipment manufacturer for the particular application. Modifications or additions that affect capacity and appropriate dock leveling device operation shall not be performed without manufacturer’s prior written approval.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

8

OWNER / USER RESPONSIBILITIES CONTINUED…

INFORMATION FOR USE

OPERATIONS

The owner/user shall verify that the material listed in this manual have been received, This clause contains broad operation standards applicable to dock leveling devices.

and that the information contained herein is made available for the instruction and Only operators trained to strictly adhere to the operating instructions stated in

training of personnel entrusted with the installation, operation or maintenance of the this clause shall be permitted to operate dock leveling devices. Unusual operating

dock leveling device.

conditions may require additional precautions and special instructions.

The dock leveling device shall not be used outside its vertical working range or outside

LOADING DOCK OPERATING PERSONNEL TRAINING

the manufacturer’s labeled rated capacity. It shall also be compatible with the loading

The owner/user should recognize the inherent danger of the interface between dock equipment and other conditions relating to dock activities.

and transport vehicle. The owner should, therefore, train and instruct loading dock The owner/user should recognize the inherent danger of the interface between the

operating personnel in the proper use of dock leveling devices in accordance with

dock and the transport vehicle. The owner/user shall ensure that operators fully

information provided by the manufacturer.

understand that proper operation is the operator’s responsibility. The owner/user shall

An effective loading dock operating personnel training program should focus on

also ensure that operators are fully knowledgeable of, and observe, the operation rules

the user company’s policies, operating conditions, and the manufacturer’s specific and practices in this clause.

instructions that were provided with the dock leveling device. The complete training Proper operation of dock leveling devices is the responsibility of the operator. The

program should be presented to all new operators and not condensed or eliminated for operator shall have an ability to assess the working conditions and environment around

those claiming previous experience.

the loading dock and an aptitude for identifying possible issues related to the process

The loading dock operating personnel training program should consist of, but not

and use of the equipment.

necessarily be limited to, the following:

Only authorized personnel shall be permitted to operate a dock leveling device.

a) Select the operator carefully. Consider physical qualifications, job attitude Operators shall be qualified as to visual, auditory, physical, and mental ability to

and aptitude.

operate the device safely in accordance with the manufacturer’s instructions.

b) Assure that the operator reads and fully understand the complete

The operator shall know, understand, and follow the manufacturer’s operating

manufacturer’s instruction manual.

instructions and all precautionary labeling on the dock leveling device. The operator

c) Emphasize the impact of proper operation upon the operator, other

shall develop working habits and the awareness of hazardous conditions that help

personnel, material being handled, and equipment. Cite all rules and why to protect the operator, other personnel, the dock leveling device and other material

they are formulated.

associated with the task. The operator shall also know, understand, and follow the

d) Describe the basic fundamentals of dock leveling device and component operation and function of all controls before undertaking operation of the dock leveling

design as related to safety, e.g., mechanical limitations, stability, etc.

device.

e) Introduce the equipment. Show control locations and demonstrate

functions. Explain how they work when used properly and problems when

they are used improperly.

f ) Assure that the operator understands the capacity rating and other

nameplate data, including the operator instructions and all precautionary

information appearing on the dock leveling device.

g) Supervise operator practice of equipment operation.

h) Develop and administer written and practical performance tests. Evaluate

progress during and at completion of the course.

i) Administer periodic refresher courses. These may be condensed versions of

the primary course and include on-the-job operator evaluation.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

9

OWNER / USER RESPONSIBILITIES CONTINUED…

TRANSPORT VEHICLE REQUIREMENTS

Actuators (including springs, hydraulic cylinders, pneumatic cylinders, and air bags),

valves, hoses, fittings, safety devices and other components shall be checked to ensure

TRANSPORT VEHICLE POSITION

that nothing has developed to the extent that it would create a hazard or interfere with

A dock leveling device shall be designed and installed so that when a transport vehicle safe operation.

is positioned as close as practicable to the loading dock, there shall be an overlap of at Special care should be taken on the inspection of pressure containing systems,

least 4 in. (102 mm) between the front edge of the lip of the dock leveler and the edge including hoses.

of the door or sill of the transport vehicle.

Control mechanisms, fastening and warning devices, dock leveling device overload

The loading dock area shall be designed so that the transport vehicle can be parked devices, guards and safety devices, deck, lip, and frame members shall be carefully

in a position relatively perpendicular to the dock face, centered with, and as close as and regularly inspected and maintained in accordance with the manufacturer’s

practical to, the dock leveling device.

recommendations.

All electrical components including motors, switches, limit switches, indicator lights,

USE OF POSITIVE RESTRAINTS

protective devices, conductors, and connections shall be regularly inspected and

When goods are transferred between the loading dock and the transport vehicle, the maintained in conformance with good practices and the manufacturer’s instructions.

brakes on the transport vehicle shall be applied and wheel chocks or positive restraints Special attention shall be paid to the condition of electrical insulation.

that provide the equivalent protection of wheel chocks shall be engaged. Also,

Manufacturer’s recommended periodic maintenance and inspection procedures in

whenever possible, air-ride suspension systems should have the air exhausted prior to effect at date of shipment shall be followed, and written records of the performance of

performing loading or unloading operations.

these procedures should be maintained.

Refer to the latest ANSI MH30.3, Vehicle Restraining Devices: Performance and Testing

for additional information on restraining the vehicle.

MAINTENANCE

Maintenance and inspection of all dock leveling devices shall be performed in

INSPECTION

conformance with the following practices. In addition, maintenance and inspection

Dock leveling devices may become hazardous if the manufacturer’s instructions

shall be performed in accordance with the manufacturer’s recommendations.

regarding maintenance, repairs, or adjustments are not followed.

a) A scheduled planned maintenance program shall be followed.

All dock levelers shall be regularly inspected and maintained in conformance with good

b) Only trained and authorized personnel shall be permitted to

practice and the manufacturer instructions.

maintain, repair, adjust, and inspect dock leveling devices.

Dock leveling devices shall be kept in a clean condition to minimize fire hazards and

c) Use only original equipment manufacturer parts, manuals, maintenance

facilitate detection of loose, worn, damaged or defective parts.

instructions and labels; or their equivalent.

At the beginning of each shift and before operation of the dock leveling device, the

operator shall inspect the condition of the dock leveling device, giving special attention DAMAGE

to the following:

Dock leveling devices that are structurally damaged or have experienced a sudden loss

a) Free of debris or obstruction

of support while under load, such as might occur when a transport vehicle is pulled

b) Precautionary labeling intact and legible

out from under the dock leveling device, shall be removed from service, inspected by

c) Guards or safety devices present and functional

the manufacturer’s authorized representative, and repaired as recommended by the

d) Controls fully operational

manufacturer before being placed back in service.

e) Free of structural defect or damage

f ) All other items specified by the manufacturer.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

10

OWNER / USER RESPONSIBILITIES CONTINUED…
REPAIR If the dock leveling device is found to require repair or cannot be used in its intended operating condition, the matter shall be reported immediately to the owner/user’s designated authority. The dock leveler shall be taken out of service until it has been restored to an acceptable operating condition. The operator shall not make repairs or adjustments unless specifically authorized and qualified to do so. Before starting repair or inspection of a dock leveler device:
a) Secure and restrict access in and around the dock position (dock and driveway)
b) Read, understand, and follow all maintenance instructions provided by the dock leveling device manufacturer
c) Follow all dock leveling device maintenance safety instructions d) Remove the load from the platform e) Disconnect power and follow established lockout /tag-out policies
as required.
Avoid fire hazards and have fire protection equipment present in the work area. Do not use an open flame to check the level or to check for leakage of any fluid. Do not use open pans of fuel or flammable cleaning fluids for cleaning parts. Properly ventilate work area and keep it clean and dry. Care shall be taken to ensure that all replacement parts meet or exceed original equipment manufacturer’s specifications.
CONFINED SPACE If a confined space entry associated with operations or maintenance of a dock leveling device is required, the confined space procedures shall comply with ANSI/ASSP Z117.1.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

11

81/(6627+(5:,6(63(&),(‘ /2&$7,216+2:,6%$6(‘8321,13,7/(1*7+

PIT LEVELER DIMENSIONS

& ‘ & ‘

$ %

13’&3,3&5 13′ 13′
13′

13’

$”(‘$’,0(16,217$%/(720$7&+7+ 68%0,77$/)250

5(9$

5(9,6,216
‘(6&5,37,21

1(:’5$:,1*

%5(029(‘7+(67$1’$5’3$576)5207+,635,17
029(‘7+(07283’$7(”,0(16,216$1’ 9,68$/6)251(:(6702′(/

‘$7(

$39/

$”(‘$’,0(16,217$%/(720$7&+7+( 68%0,77$/)250

)

(

&

– –

)

)

( (

  • %

. .

,,

/ /

&7,21
5(9$

67$1’$5’%6870$31(‘5$65’%803(56

‘2&’.2/&(.9(//((95(3/,(75′,30,(71’6,,021(616,216

Figure 4

”,0,0((1166,,221111$$00(( $$ %% && ‘ ‘ ( ( ) ) + +,

-,

.- /.

/

”,0,0((1166,,2211

DOCK LEVELER D IMENSIONS

DIMENSION NAME “A” “B” “C” “D” “E” “F” “G” “H” “I”

,1&+(6 ,1&+(6 ‘ 3502(‘&8+&37,7$/3(395(‘2/9($35/502(‘&8+&3’27,2 7,73&$$,&7&&’1/):&11,2+2+5))2225222&5)):)((25$551573(2,$,,7:3/,/3363+1’&15$7(7,,(22(226522$$,<10′(151(55577$/2<11$$,77((($$$:1)12731&<6’7772,2,(2,5’8$’221,,,2522)2651(5:7116)$81111<+23,,66,+1&18%7272,9(06$)+2,’76$,91(361$2/$+,2,1’1(5$(‘&6//7152’58755+&,/3:11$20$5$78+7(/$525(),$,,:2′(1$3/=725,770(2/$,’6$+5(,131,26$’22879’2,2’52,<3(5518$27’+2,5((,5(,+1717121’,(27,73&$$,&7&&’1/):756+11:(‘62256)2,,2+2+)5)5$22522276$&(55),2753()5):)125((25&7$$51573(2,$(,,5,,%77<($71/’:/3,/363+18’&1&5$7(0((2771,,$(2(2626$’,522$$,<110′(($<)616(551(25577$/21′<17,1($&$,(7$7(((2,,$:$1(‘)1227731&<6”5772,2,(21,5’8$’221,,252)2651(5:711’67)$,6)1$8111<+232(,3<,,66,+106,&18%7$213072,9(0346$)62+,’767/$7$,%91(63(1$8’2/,8$(+3,&21,’&21/(&5($’&6$//755(125,2$//’587755/5+&,/(353:1%1$20,,$5
&$728+’76571(/$/525$(),/$,,:<12((‘(,1$3/=7268(25,07707(‘2/$,’$+6605(,,0711113,6
(’26$’272789’2(,28$:’52/6$,63,<3(55018$5$672<‘,1(+2,,55&7((5,6(7,+1571’72121’6,(2+175$6+:0(‘&$62(&256)2,65$7/6$5(55((,727530()5125(,&7’2(,$6217(,,5%7<(7$671/6’/,78&&0((2671+$6$$’,1($)<66/((521’7,(&5$($7+2,,(’27/:2’25/$1/,/16((!’67)$((52(236<,0,8$1030$6;;4;6/7/7$(13%;;8’$,8(73&&2(/&;$5555(2,$//&(5/<(35%,3,
6&’7651)
/$5/<((,2,268((0279’0,”0711(‘6
(‘(8$5:/68,63015$6<,(,5&&7(67(526+71’$0&(&6%/$5((70<(,62(,62170$)’&676/,7,’3+5&$1(63+($7$,&065(&:/($+25.%’15$,9(7+/$/'(‘:<2/2/$’$/7,/106$((!($%(-(526$3&860$6(;3;;+(/(/135;;$/73(&2;(55,&(795<$,6/)/(,2(699′((/5(’15$(7′(%<’60$)’&,(,’3+5=$163($7(,&665&(&:$&+25.5”1$,9(,$:3/'(‘/(7$’,72$11$%-2$36(3(/5/2(95/$(/’:28622,96209(,55’//$+(&(7$((27$5(‘;3’6$,(=66(&65+'(,:3(77,211252)(9

$ /(:

&25325$7,21

,163(&7,2167$1’$5’6

352’8&7$66(0%/<0(&+3,7/( 9(/(5

6&$/(

82

“J” “K” “L”

DIMENSION 73.0″ 72.0″ 89.7″ 89.1″ 101.5″ 14.8″ 13.3″ 10.0″ 19.0″ 4.5″ 10.0″ 19.3″

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

12

PIT LEVELER DIMENSIONS CONTINUED…
5$03*5$'(

/,3*5$'(

RAMP AND LIP GRADES

RAMP AND LIP

LOADING VEHICLE HEIGHT

GRADE (%)

FROM DOCK (IN)

RAMP

LIP

12 15.37

0.42

10 13.25 -1.66

8

11.18

-3.70

ABOVE DOCK

6

9.14

-5.73

4

7.08

-7.78

‘$1*/(352-(&7,21

2

5.05

-9.82

LEVEL

0

3.00 -11.89

%)2505(9$

-2

0.98 -13.95

-4 -1.05 -16.02

-6 -3.09 -18.12

BELOW DOCK

-8

-5.12 -20.22

-10 -7.17 -22.35

-12 -9.22 -24.51

852409-0001 REV- 01/04/2024

Figure 5

7+(‘5$:,1*6$1’$//27+(5 ,1)250$7,21&217$,1(‘+(5(,1$5(

81/(6627+(5:,6(63(&,),(‘

$33529$/6 ‘$7(

7+(&21),'(17,$/35235,(7$5<

,17(535(7′,06 72/6

3523(57<2)29(5+($”225

3(5$60(<0

&25325$7,21,1&/8’,1*,76$)),/,$7(‘

68%6,’,$5,(6$1’$)),/,$7(67+,6

$//’,06$5(,1

‘5$:,1*,1)250$7,21,1:+2/(25,1

,1&+(6 :(/'(;$03/(,0 3$570$<127%(&23,(‘,1$1<0$11(5

25′,6&/26(’72$1<21(:,7+287

35,25:5,77(1&216(172)29(5+($’ ‘225&25325$7,21’,6&/2685(2)

‘21276&$/(

$1<‘5$:,1*25,1)250$7,21,6 ,17(1′(‘12772$1’6+$//127 23(5$7($6$/,&(16(25 $87+25,=$7,217286(,7)25$1<
% 1(:180%( 385326(:,7+28763(&,),&:5,77(1
&216(172)29(5+($”225 &25325$7,21

‘,06&,5&/(‘:,7+6<0%2/

$5(&5,7,&$/72
48$/,7<‘(6,*1)($785(6 08670((7$33/,&$%/(
,1352&(66,163(&7,21 67$1’$5’6

72/(5$1&(6 ; ;;

‘5$:1 &+(&.(‘

1(:

;;; $1*8/$5

$33529(‘

+2/(6

0$7(5,$/

),1,6+

!

$//(20(75<29(51(‘%<‘&$”$7$%$6(
0$,1$66<0(&+3,7/(9(/(5

‘(6&5,37,21
6,=( ‘:*12
6&$/(

29(5+($’ ‘225&253
/(:,69,//(7(;$6 820 ($

©Copyright 2024 Overhead Door Corporation

13

INSTALLATION INSTRUCTIONS

Installation Precautions

DANGER
READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING INSTALLATION. IF YOU ARE IN QUESTION ABOUT ANY OF THE PROCEDURES, DO NOT PERFORM THE WORK. INSTALLATION OR REPAIRS SHOULD ONLY BE PERFORMED BY A TRAINED DOCK LEVELER SYSTEMS TECHNICIAN. FAILURE TO FOLLOW SAFETY INSTRUCTIONS WILL RESULT IN DEATH OR SERIOUS INJURY.
DANGER
KEEP HANDS, FEET AND OTHER APPENDAGES CLEAR OF HINGES AND OTHER PINCH POINTS WHEN MOVING, INSTALLING, OPERATING, SERVICING, OR OTHERWISE MANIPULATING THE DOCK LEVELING SYSTEM. THIS SYSTEM IS HEAVY AND MOVES WITH CONSIDERABLE FORCE, CAPABLE OF SEVERING APPENDAGES AND CAUSING SERIOUS INJURY OR DEATH.
WARNING
PROPER INSTALLATION OF THIS SYSTEM REQUIRES THE USE OF SPECIAL TOOLS AND TECHNIQUES. ALWAYS USE THE CORRECT TOOLS OR TECHNIQUES WHEN PERFORMING INSTALLATION. FAILURE TO USE PROPER TOOLS OR TECHNIQUES OR ADHERE TO SAFETY MESSAGES, COULD RESULT IN DEATH OR SERIOUS INJURY.
WARNING
APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT (PPE) SHOULD ALWAYS BE USED. THIS INCLUDES BUT IS NOT LIMITED TO A HARD HAT WHEN WORKING BELOW LEVELER DECK, APPROPRIATE EYE PROTECTION, GLOVES, AND HARD-CAPPED SLIP-RESISTANT FOOTWEAR WHEN WORKING ON OR NEAR THE DOCK AREA. APPROPRIATE PPE MAY PROTECT YOU FROM DEATH OR SERIOUS INJURY.
NOTICE
INSTALLATION OF THIS DOCK LEVELING DEVICE REQUIRES A MINIMUM OF TWO PEOPLE.
Required Tools And Materials List · Lifting equipment · Tape measure · Welder with welding electrode or filler metal (minimum 70,000 PSI tensile strength) · Wire brush (for cleaning weld slag and concrete splatter) · Grinder (for removing powder coat before welding) · Hammer drill with drill bit suitable for concrete. (Be sure to follow anchor manufacturer recommendation for hole diameter) · Vacuum or compressed air (for concrete anchor hole clean out) · Prybar · Hammer or mallet (for driving concrete anchors) · Drill driver with socket adapters (for installing anchors) · 15″ socket extension and a 5/8″ hex bit socket (for leveling screws) · Calcium sulfonate complex grease · Touch up paint (available as part number 606699.0064)

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

14

INSTALLATION INSTRUCTIONS CONTINUED…
PRE-INSTALLATION TASKS 1. Ensure a site survey was completed prior to installation. 2. Verify embedded curb angles are present. 3. Check quality and condition of concrete and steel angles. 4. Check size, squareness, and plumbness of the pit. Be sure the pit conforms to the
dimensions shown in Figure 6. 5. Prepare curb angle so it is smooth and clean of all slag and concrete. 6. Carefully clean out the pit of all dust and debris.
ATTACH LEVELING PLATES 1. Locate the two leveling plates in your package. 2. Place the leveling plates in the back of the pit, as shown in Figure 7. NOTE: To prevent the leveling plates from shifting during installation of the leveler, the leveling plates are to be fastened to the pit door with an appropriate adhesive.
NOTICE
INSTALLATION OF THIS DOCK LEVELING DEVICE REQUIRES A MINIMUM OF TWO PEOPLE.
WARNING
PLACE WARNING BARRICADES AROUND THE OUTSIDE OF THE EMPTY PIT, INSIDE AND OUTSIDE THE BUILDING, TO PREVENT INTRUSION DURING INSTALLATION.

Figure 6

Figure 7

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

15

INSTALLATION INSTRUCTIONS CONTINUED…
LEVELER INSPECTION AND PREPARATION 1. Inspect leveler for damage before unloading. IMPORTANT: Do not remove shipping bands until instructed to do so. 2. Ensure the four deck transportation loops are installed and secure before lifting the leveler from the truck. See Figure 8.
NOTICE
DO NOT OVER-TIGHTEN DECK LOOPS, AS THIS WILL SCRAPE THE POWDER COAT OFF OF THE DOCK LEVELER AND RESTRICT THEIR MOVEMENT WHILE TRANSPORTING THE DOCK.
NOTICE
LIFTING THE LEVELER FROM UNDER THE DECK CAN RESULT IN SERIOUS DAMAGE TO THE LEVELER. ONLY LIFT THE LEVELER USING THE PROVIDED DECK TRANSPORTATION LOOPS.
DO NOT USE FORKS UNDER DECK
852420-0001 REV- 08/09/2023

Figure 8

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

16

INSTALLATION INSTRUCTIONS CONTINUED…
DANGER
DO NOT ATTEMPT TO MOVE THE LEVELER BY HAND. USE CAUTION WHEN MOVING THE LEVELER INTO PLACE. NEVER WORK UNDER A LIFTED LEVELER. BE SURE ALL PERSONNEL ARE CLEAR OF THE INSTALLATION PATH BEFORE YOU BEGIN. ENSURE YOUR LIFTING EQUIPMENT IS RATED TO HANDLE AT LEAST 2000 POUND LOAD WEIGHT AND COMPLIES WITH ALL LIFTING REGULATIONS. FAILURE IN THESE POINTS WILL RESULT IN DEATH OR SERIOUS INJURY.
LEVELER INSTALLATION 1. Using properly rated lifting equipment lift the leveler using the deck transportation
loops and lower it into the pit. See Figure 9. 2. Square the leveler in the pit and ensure the gap on each side is equal.
LEVELING THE REAR 1. Leveling screws have been provided in the rear to help adjust the vertical position
without shimming. Adjust the leveling screws until the rear deck of the leveler is even with the warehouse floor. See Figure 10. NOTE: Use a rotary power tool with at least a 15″ socket extension and a 5/8″ hex bit socket for the leveling screws. It may be helpful to use tape to attach the socket to the end of the extension to prevent losing the socket under the deck. NOTE: If a gap is observed between the rear embedded curb angle and the top of the leveler frame, first ensure the leveler is pushed all the way rearward, contacting the rear pit wall. Then, carefully lift the front (lip side) of the leveler to close the gap. 2. Tack weld the rear of the leveler to the rear curb angle to hold it in place. 3. Remove the shipping bands and discard. 4. Recheck the gap on each side and ensure it is equal. The deck may have shifted to one side when the shipping bands were removed. Adjust as needed. 5. If the pit is not square it may be necessary to add shims between the rear of the leveler and the rear pit curb angle. If this is needed, fill all gaps with weld.

LOOPS
Figure 9

Figure 10

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

17

INSTALLATION INSTRUCTIONS CONTINUED…
WELD REAR OF LEVELER IN PLACE 1. Remove the paint from the rear of the leveler at the factory cut slots and from the
curb angle with an angle grinder or equivalent. 2. Weld leveler to the rear curb angle using the factory cut welding slots, as shown in
Figure 11 and Figure 12. 3. Set the leveling screws by turning them clockwise and torque to 40-60 ft. lbs. IMPORTANT: Ensure all leveling screws are contacting the leveling plates and equally torqued down.

OPEN THE LEVELER 1. Pull the release chain and allow the leveler to rise to the fully open position.

DANGER

Figure 11

DOCK LEVELER SWINGS WITH CONSIDERABLE FORCE. ACTUATING THE DOCK LEVELING SYSTEM WITH ANYONE UNDER OR IN FRONT OF IT WILL CAUSE DEATH OR SERIOUS INJURY.

DANGER
KEEP HANDS, FEET AND OTHER APPENDAGES CLEAR OF HINGES AND OTHER PINCH POINTS WHEN MOVING, INSTALLING, OPERATING, SERVICING, OR OTHERWISE MANIPULATING THE DOCK LEVELING SYSTEM. THIS SYSTEM IS HEAVY AND MOVES WITH CONSIDERABLE FORCE, CAPABLE OF SEVERING APPENDAGES AND CAUSING SERIOUS INJURY OR DEATH.

2. Raise the lip brace and maintenance brace to their vertical and locked positions, as shown in Figure 13. Secure it with an OSHA approved locking device. A secondary means of supporting the deck should be used.

LIP BRACE

MAINTENANCE BRACE

Figure 12

Figure 13

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

18

INSTALLATION INSTRUCTIONS CONTINUED…

DANGER
TO AVOID GETTING IMPACTED BY OR CRUSHED BELOW A FALLING DOCK LEVELER SYSTEM, DO NOT WORK UNDERNEATH THE DECK OR LIP UNLESS MAINTENANCE BRACE HAS BEEN SECURED IN THE UPRIGHT POSITION. A SECONDARY MEANS OF SUPPORTING THE DECK SHOULD BE USED. FAILURE TO COMPLY WILL RESULT IN DEATH OR SERIOUS INJURY.
WELD FRONT OF LEVELER
1. Shim below lip keepers and maintenance brace, using a prybar to lift the front of the leveler up to insert the shims, as shown in Figure 14. The leveler must be shimmed until the front of the deck is level with or just below dock height when the leveler is stowed.
NOTE: With standard length lips, the shims beneath the lip keepers may be inserted with the leveler in the stowed position. With extended lips, the leveler must be raised to insert the shims.

DANGER

DO NOT ATTEMPT TO LIFT THE FRONT OF THE LEVELER BY HAND WHEN INSERTING SHIMS

BELOW THE LIP KEEPERS AND MAINTENANCE BRACE. LEVELER WEIGHT IS CONSIDERABLE,

AND THE LEVELER COULD SHIFT UNEXPECTEDLY. USE A SUFFICIENTLY LONG PRYBAR TO

AVOID SEVERING FINGERS.

2. Ensure lip keeper bolts are fully torqued down. 3. Weld front frame angle, curb angle, and shims together, as shown in Figure 14. 4. Lower the maintenance brace and walk the leveler down to the closed position.

NOTICE

TO PROMOTE WELD PENETRATION, USE AS FEW AND AS THICK

%

OF SHIMS AS POSSIBLE TO ACHIEVE DESIRED HEIGHT. DO NOT

STACK MULTIPLE LAYERS OF THIN GAUGE SHIM. THE TOP SHIM

IN THE STACK MUST BE AT LEAST 4″ X 4″ TO FULLY SUPPORT

THE FRAME RAIL.

Figure 14

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

19

$

INSTALLATION INSTRUCTIONS CONTINUED…
INSTALL LAMINATED BUMPERS 1. Bumpers should be installed 46″ – 52″ from the top of the bumper to the ground. 2. Installation will be accomplished by a combination of welding and concrete anchors,
as shown in Figure 15 and Figure 16. 3. Follow concrete anchor manufacturer’s instructions for proper use.
NOTICE
DO NOT USE A DOCK LEVELER WITHOUT BUMPERS INSTALLED. TO DO SO COULD RESULT IN DAMAGE TO THE LEVELER OR THE BUILDING.
FINISHING 1. Clean up welds and the surrounding area. 2. Apply rust inhibiting touch up paint to all welds and
shims as necessary.

Figure 15

Figure 16

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

20

INSTALLATION INSTRUCTIONS CONTINUED…
3.Remove the four deck transportation loops, as shown in Figure 17. 4. Locate the eight deck plugs in the hardware bag. Insert them in the four holes where
the deck transportation loops were bolted and the four holes for accessing the rear leveling screws, as shown in Figure 18. 5. Be sure all tools and debris are removed from the leveler and the surrounding area.
DECK TRANSPORTATION LOOPS
Figure 17

Figure 18

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

21

INSTALLATION INSTRUCTIONS CONTINUED…
INSTALL OPERATION PLACARD
1. Install operation placard on the wall near the opening in plain view of the dock leveler with an appropriate adhesive. See Figure 19.

DANGER
· Read and follow all instructions, warnings and maintenance schedules in the manual.
· Operation and servicing of dock leveler is restricted to authorized personnel.
· Always chock trailer wheels or engage trailer restraint before operating dock leveler or beginning to load or unload.
· Never use hands or equipment to move ramp or lip. · Before activating dock leveler:
· Ensure trailer is backed up against bumpers. · Remove any end load, if required. · Check trailer alignment to avoid lip interference. If lip does not lower
to trailer bed, reposition vehicle. · Ensure truck bed supports extended lip or leveler frame supports the
ramp before driving on ramp. · Stay clear of hinges and front and sides of moving dock leveler. · Never use damaged or malfunctioning dock leveler. Report problems
immediately to supervisor. · Before allowing vehicle to leave the dock always:
· Ensure no equipment, material or people are on dock leveler. · Return dock leveler to its stored position at dock level. · DO NOT ENTER THE PIT unless dock leveler is securely supported by maintenance strut.
FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN DEATH OR SERIOUS INJURY.
If you need assistance, scan the QR Code or contact your local Overhead Door Ribbon Distributor. To find your local Overhead Door Ribbon Distributor, go to the Find a Ribbon Distributor section online at www.OverheadDoor.com.

© 2023 Overhead Door Corporation

Figure 19

OPERATING
INSTRUCTIONS
Mechanical Pit Levelers
EXTENDING THE LEVELER ONTO BED OF
TRANSPORT VEHICLE
1. Standing on the warehouse floor, grasp the ring connected to the release chain and pull, holding the ring and chain taut while the platform reaches the fully raised position. Release the ring.
2. Carefully, walk out onto the platform of dock leveler. This will allow the dock to lower, resting its lip onto the transport vehicle.
RETURNING LEVELER TO STOWED POSITION
1. Grasp the ring connected to the release chain and pull, holding the ring and chain taut while the platform reaches the fully raised position. Release the ring.
2. Slowly walk the platform down, allowing the lip to fold down and clear the transport vehicle. Continue to walk toward the end of the platform, until the lip is resting inside the lip keepers and the platform is parallel with the warehouse floor.
BELOW DOCK ENDLOADING
1. Standing on the warehouse floor, grasp the ring connected to the release chain and pull, holding the ring and chain taut while the platform reaches the fully raised position. Release the ring.
2. Walk onto the platform, not allowing the lip to fold down. Pull and hold the safety leg pull chain ring taut, located towards the front of the dock leveler, as the leveler continues to descend into the below-dock position. Release the safety leg pull chain ring, when the dock leveler is resting on the transport vehicle.
852401-0001 REV- 06/19/2023

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

22

TESTING AND SPRING ADJUSTMENTS
DANGER
DOCK LEVELER SWINGS WITH CONSIDERABLE FORCE. ACTUATING THE DOCK LEVELING SYSTEM WITH ANYONE UNDER OR IN FRONT OF IT WILL CAUSE DEATH OR SERIOUS INJURY.
DANGER
KEEP HANDS, FEET AND OTHER APPENDAGES CLEAR OF HINGES AND OTHER PINCH POINTS WHEN MOVING, INSTALLING, OPERATING, SERVICING, OR OTHERWISE MANIPULATING THE DOCK LEVELING SYSTEM. THIS SYSTEM IS HEAVY AND MOVES WITH CONSIDERABLE FORCE, CAPABLE OF SEVERING APPENDAGES AND CAUSING SERIOUS INJURY OR DEATH.
DANGER
DO NOT WORK UNDER DOCK LEVELER UNLESS MAINTENANCE STRUT HAS BEEN SECURED IN THE UPRIGHT POSITION. FAILURE TO COMPLY WILL RESULT IN DEATH OR SERIOUS INJURY.

852409-0001 REV- 01/04/2024

MAINTENANCE STRUT

Figure 20

©Copyright 2024 Overhead Door Corporation

23

TESTING AND SPRING ADJUSTMENTS CONTINUED…
DANGER
THE ADJUSTMENT OF PIT LEVELER SPRINGS SHALL BE PERFORMED BY TRAINED DOCK SYSTEM TECHNICIANS ONLY. DO NOT ATTEMPT TO REMOVE SPRINGS UNTIL THE TENSION IS COMPLETELY AND PROPERLY REMOVED. SPRINGS CAN UNEXPECTEDLY RELEASE HIGH POTENTIAL ENERGY WHICH COULD CAUSE DEATH OR SERIOUS INJURY.
WARNING
PRIOR TO SERVICING, ALWAYS BARRICADE OR PLACE TRAFFIC CONES ON ALL SIDES OF THE LEVELER TO ALERT FORK VEHICLE OPERATORS AND PEDESTRIANS THAT A SERVICE TECHNICIAN MAY BE WORKING BELOW THE DOCK. NOTIFY A SUPERVISOR/FOREMAN PRIOR TO BEGINNING WORK. COMPLY WITH ALL OSHA STANDARDS AND REGULATIONS.
DANGER
SECURELY SUPPORT RAMP AND LIP WHILE WORKING BELOW THE LEVELER PLATFORM. FAILURE TO USE PROPER BRACING WILL RESULT IN DEATH OR SERIOUS INJURY DUE TO RAMP DROPPING. A SECONDARY MEANS OF SUPPORTING THE RAMP AND LIP SHOULD BE USED. FAILURE TO FOLLOW THESE PRECAUTIONS MAY RESULT IN DEATH OR SERIOUS INJURY.
WARNING
APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT (PPE) SHOULD ALWAYS BE USED. THIS INCLUDES BUT IS NOT LIMITED TO A HARD HAT WHEN WORKING BELOW LEVELER DECK, APPROPRIATE EYE PROTECTION, GLOVES, AND HARD-CAPPED SLIP-RESISTANT FOOTWEAR WHEN WORKING ON OR NEAR THE DOCK AREA.
After the mechanical pit leveler is welded in place, the springs should be adjusted to ensure optimal functionality. The following procedure is designed to minimize the time required to achieve the ideal spring settings. 1. Cycle the unit a few times to check operations and functions of the unit. 2. Raise the deck and lip to their highest position using the deck and lip maintenance braces. Verify all hinge and pivot points are properly lubricated per the Preventative
Maintenance section. 3. Disengage the lip maintenance brace. 4. Bring the unit to six (6) inches above dock level. Extend the lip fully. Time the lip as it falls to pendant position. The fall time should be between 12 to 18 seconds. If the time is
achieved go to STEP 6. If not continue to next step.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

24

TESTING AND SPRING ADJUSTMENTS CONTINUED…

5. With the deck in its uppermost position, adjust the lip actuation spring: loosen up the jam-nut and firmly grasp the square adjustment tube by hand or with a wrench and turn the lip spring adjustment bolt (see Figure 21). Clockwise to tighten, counterclockwise to remove tension. Tighten the jam-nut once proper setting is achieved. Retest STEP 4.
6. Once the lip is properly adjusted, adjust the main spring tension so that the lip fully extends when pulling the hold down release chain from the leveler stowed position. The lip should have a “snap” to it when the unit fully opens. This will require several attempts, alternating between adjusting the main spring tension and checking if the lip is deploying, and is more easily achieved with two people.
a) To adjust the main spring tension, loosen up the jam-nut and turn the adjustment nut on the scissor mechanism as shown in Figure 22. Clockwise to tighten, counter clockwise to remove tension. Tighten the jam-nut once proper setting is achieved.

DANGER

ENSURE THE SPRINGS ARE NOT OVERTIGHTENED. ATTEMPTING TO FORCE THE LEVELER DOWN WHEN SPRINGS ARE OVERTIGHTENED COULD CAUSE THE SPRINGS TO BREAK, CAUSING UNCONTROLLED RAPID DECENT. FAILURE TO ENSURE PROPER SPRING ADJUSTMENT WILL RESULT IN DEATH OR SERIOUS INJURY.

DANGER

ENSURE THE SPRINGS ARE NOT UNDERTIGHTENED. DECK COULD DROP UNCONTROLLABLY WITH INSUFFICIENT SPRING TENSION. ENSURE THE UNDERSIDE OF THE LEVELER DECK IS NOT CONTACTING THE MAINTENANCE BRACE BEFORE REMOVING BRACING. REMOVING THE BRACING WHEN IT IS CONTACTING THE UNDERSIDE OF THE DECK WILL RESULT IN DEATH OR SERIOUS INJURY.

IMPORTANT: Excessive tension on the main springs will make the leveler difficult to walk down. Too little tension may prevent the lip from deploying properly. A quarter turn of the adjustment nut can make a substantial difference.

NOTE: Spring adjustment may be required with new springs due to potential spring settling.

MAIN SPRINGS

LIP ACTUATION SPRING

SQUARE LIP

ADJUSTMENT

TUBE

LIP

SPRING

ADJUSTMENT

BOLT

852409-0001 REV- 01/04/2024

Figure 21

©Copyright 2024 Overhead Door Corporation

JAM-NUT
ADJUSTMENT NUT
Figure 22
25

TROUBLESHOOTING

DANGER PIT LEVELER INSPECTION AND TROUBLESHOOTING SHALL BE PERFORMED BY TRAINED DOCK SYSTEM TECHNICIANS ONLY.

TROUBLESHOOTING: SYMPTOMS, CAUSES AND SOLUTIONS

SYMPTOM

POTENTIAL CAUSE

SOLUTION

Pit is not square

Use vertical shims along the rear curb angle to square off the rear pit wall

Dock leveler rubs vertical pit walls

Leveler not welded flush to rear curb angle

Remove leveler, clean rear curb angle from slag/debris, verify squareness of pit, then reinstall leveler

Toe guard loose

Fasten toe guards securely

Pit too small for leveler

Contact factory

Shipping bands not removed

Remove shipping materials

Weight on deck surface

Remove weight from deck. Do not stand on deck when pulling hold down release chain

Debris in rear hinge

Clean out rear hinge using broom and/or compressed air

Dock leveler obstructed by pit walls

Refer to symptom, “Dock leveler rubs vertical pit walls”

Transport vehicle obstructs pit leveler

Move transport vehicle. Check bumpers for excessive wear. If bumpers are not worn, consult factory

Dock leveler deck does not rise properly

Snubber chain snagged Main spring(s) is/are broken or worn

Unsnag snubber chain from obstruction, including the snubber spring
Replace damaged spring(s)

Springs have too little tension

Adjust springs per Mechanical Pit Leveler Adjustments section

Scissor mechanism seized/broken

Lubricate per Periodic Maintenance, repair and/or replace scissor mechanism, as needed

Rear hinge seized

Lubricate rear hinge shaft per Periodic Maintenance

Hold down chain stuck/broken

Unsnag hold down chain or replace, as needed

Hold down pawl stuck

Lubricate pawl pins or replace, as needed. DO NOT LUBRICATE RATCHET TEETH

Snubber chain is too short

Verify snubber chain length per replacement part table and replace if needed

Deck is obstructed

Remove all foreign obstructions

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

26

TROUBLESHOOTING CONTINUED…

SYMPTOM Deck does not stow properly
Lip does not deploy or drop properly

TROUBLESHOOTING: SYMPTOMS, CAUSES AND SOLUTIONS

POTENTIAL CAUSE

SOLUTION

Debris in rear hinge

Clean out rear hinge using broom and/or compressed air

Maintenance brace is deployed

Stow maintenance brace

Main springs have too much tension

Adjust springs per Mechanical Pit Leveler Adjustments section

Obstruction under deck

Remove all foreign obstructions from below deck

Scissor mechanism seized/broken

Lubricate per Periodic Maintenance, repair and/or replace scissor mechanism, as needed

Lip keepers are out of place, missing, or damaged

Verify lip keepers are and welded in the correctly position

Hold down is broken/seized

Replace hold down

Springs improperly set

Adjust springs per Mechanical Pit Leveler Adjustments section

Lip actuation linkage is corroded or seized

Lubricate, repair, and replace as needed

Lip damper damaged/broken

Remove damper and ensure it can be compressed manually. Replace damper if it does not compress manually

Transport vehicle obstructs pit leveler lip

Move transport vehicle. Check bumpers for excessive wear. If bumpers are not worn, consult factory

Lip is damaged/bowed

Consult factory

lip hinge shafts are worn through or seized

Replace shafts, as needed

Lip spring is damaged or broken

Replace lip spring

Lip actuation chain is snagged

Ensure lip chain is not caught

Lip actuation chain

Verify lip actuation chain length per replacement part table and fix/replace, as needed

Lip maintenance brace is deployed

Stow lip maintenance brace

Lip actuation linkage is bent/damaged

Replace linkage parts, as needed

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

27

TROUBLESHOOTING CONTINUED…

TROUBLESHOOTING: SYMPTOMS, CAUSES AND SOLUTIONS

SYMPTOM

POTENTIAL CAUSE

SOLUTION

Safety leg chain is snagged/broken

Free safety leg chain or replace as needed

Safety legs not retracting/deploying

Safety leg spring is broken Safety leg parts missing or broken

Replace safety leg spring Replace/repair, as needed

Lip keepers set incorrectly

Ensure lip keepers are aligned below safety legs

Weld to rear curb angle is broken/cracked

Leveling feet are not contacting the pit floor

Extend all leveling feet per installation instructions. Repair weld

Leveler is broken/cracked

Load exceeded manufacturer factored load limit Driving too fast over leveler

Document with installer and repair/replace per manufacturer instruction

Harsh chemicals used

Painted areas flaking/wearing

Too thin of a touchup paint coat applied

Clean surface and reapply touchup paint

Dirty surface prior to field paint

Chipped or cracked powder coating

Bent or broken equipment

Inspect and replace/touch up, as needed

Bumpers are worn

Replace worn bumpers

Lip does not clear transport vehicle

Drive grade is incompatible with bumper projection and lip length

Replace with compatible bumper projection

Pallet jack or loading vehicle scrapes against leveler Pallet jack is too low

platform

Transport vehicle is too high or dock is too low

Raise pallet jack to max height Consult factory

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

28

MAINTENANCE
DANGER
READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING MAINTENANCE. IF YOU ARE IN QUESTION ABOUT ANY OF THE PROCEDURES, DO NOT PERFORM THE WORK. REPAIRS SHOULD ONLY BE PERFORMED BY A TRAINED DOCK LEVELER SYSTEMS TECHNICIAN. FAILURE TO FOLLOW SAFETY INSTRUCTIONS WILL RESULT IN DEATH OR SERIOUS INJURY.
DANGER
DO NOT WORK UNDER DOCK LEVELER UNLESS MAINTENANCE BRACE HAS BEEN SECURED IN THE RAISED SERVICE POSITION. SECURELY SUPPORT RAMP AND LIP WITH MAINTENANCE BRACES WHEN RAMP IS IN RAISED SERVICE POSITION. A SECONDARY MEANS OF SUPPORTING THE RAMP AND LIP SHOULD BE USED. FAILURE TO USE PROPER BRACING WILL RESULT IN DEATH OR SERIOUS INJURY.
DANGER
NEVER ATTEMPT TO ADJUST THE ENCLOSED COMPRESSION SPRING IN THE HOLD DOWN MECHANISM. THIS SPRINGS CAN UNEXPECTEDLY RELEASE HIGH POTENTIAL ENERGY WHICH COULD CAUSE DEATH OR SERIOUS INJURY.
DANGER
PRIOR TO SERVICING, ALWAYS BARRICADE OR PLACE TRAFFIC CONES ON ALL SIDES OF THE LEVELER TO ALERT FORK VEHICLE OPERATORS AND PEDESTRIANS THAT A SERVICE TECHNICIAN MAY BE WORKING BELOW THE DOCK. NOTIFY A SUPERVISOR/FOREMAN PRIOR TO BEGINNING WORK. COMPLY WITH ALL OSHA STANDARDS AND REGULATIONS.
WARNING
APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT (PPE) SHOULD ALWAYS BE USED. THIS INCLUDES BUT IS NOT LIMITED TO: A HARD HAT WHEN WORKING BELOW LEVELER DECK, EYE PROTECTION, GLOVES, AND HARD-CAPPED SLIP-RESISTANT FOOTWEAR WHEN WORKING ON OR NEAR THE DOCK AREA. FAILURE TO USE APPROPRIATE PPE COULD RESULT IN SEVERE OR FATAL INJURY.
Before starting repair or inspection of a dock leveler device: a) Secure and restrict access in and around the dock position (dock and driveway) with physical barriers and visible signage. b) Read, understand, and follow all maintenance instructions and precautions provided. c) Remove all loads from the platform; and d) Disconnect power and follow established OSHA-approved lockout / tag-out policies as required.
Maintenance and inspection of all dock leveling devices shall be performed in conformance with the following practices: a) Scheduled, planned maintenance program shall be followed and logged. b) Only trained and authorized personnel shall be permitted to maintain, repair, adjust, and inspect dock leveling devices. c) Use only original equipment manufacturer parts, manuals, maintenance instructions and labels.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

29

MAINTENANCE CONTINUED…

Daily Maintenance

At the beginning of each shift and before operation of the dock leveling device, the operator shall inspect the condition of the dock leveling device, giving special attention to the following:

1. Ensure hinges and surfaces are free of debris, ice, dirt, or obstruction.

2. Verify all precautionary labeling and operation placards are intact, visible, and legible.

3. If leveler has guards or safety devices, ensure they are present and functional.

4. Perform a function check to ensure controls are fully operational.

5. Inspect that unit is free of visible structural defect or damage.

Weekly Maintenance

1. Cycle the dock leveler through at least one complete operating cycle to maintain lubrication.

a) Observe for imbalance. If leveler is sluggish, heavy or binds, the lip does not deploy with a snap, or cannot be walked down, call authorized, trained personnel to adjust the springs and inspect the unit.

2. Check bumpers for wear. If the leveler begins to interfere with the transport vehicle during deployment or stowing, it is time to replace the bumpers.

3. Clean dock leveler with warm soapy water.

NOTE: Sodium hydroxide cleaning solution may be used if it is diluted to <5% and completely rinsed clean within 3 minutes. Ensure lubrication is not washed off.

Quarterly Maintenance

1. Lubricate the following areas with calcium sulfonate complex grease or other long-lasting, weather & pressure resistant, anti-seize, penetrating, lubricating oil/grease. See Figure 23:

a) All lip actuation linkage joints b) Lug hinge contact surfaces.

1a

c) Scissor mechanism pins.

d) Rear hinge shaft

NOTICE

NEVER LUBRICATE THE RATCHET OR PAWL TEETH ON THE HOLD DOWN SYSTEM. THE FLAT BACKSIDE OF THE RATCHET BAR MAY BE LUBRICATED WITH A NONRUNNING GREASE. 2. Clean out rear hinge with broom or compressed air.
3. Inspect welds and structure for cracks, separation or other damage. Repair field welds and replace damaged components, as appropriate.
a) Inspect welds between the leveler and the rear pit curb angle.

1b Both Sides

b) Inspect structural welds below leveler lip.

1c

c) Inspect welds of bumpers to dock structure.

d) Inspect hinge and pivot pins for wear.

4. Perform Weekly Maintenance

5. Tune the spring for easy, smooth operation

6. Check wall anchors/anchor nuts for tightness.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

Figure 23

1d (All along shaft)
30

MAINTENANCE CONTINUED…
LOCKOUT/TAGOUT
Occupational Safety and Health Administration (OSHA) rules and regulations require all affected employees be notified when equipment is shut down/locked out for repair and/or maintenance work.
a) Utilize OSHA-approved lockout devices. b) The tagout tags indicating that work is being done on equipment should be prominently visible and clearly bear the name of the authorized person responsible for the
lockout. c) Tagout notices shall not be susceptible to deterioration or become illegible due to environmental conditions or chemical exposure. d) Always follow local, state, and federal codes. e) Always lockout and tagout power sources prior to beginning work on electrical devices/controls.
CONFINED SPACE If a confined space entry associated with operations or maintenance of a dock leveling device is required, the confined space procedures shall comply with ANSI/ASSP Z117.1.

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

31

REPLACEMENT PARTS

127(681/(6627+(5:,6(63(&),(‘ 0$7(5,$/68%67,787,21$//2:(‘:,7+:5,77(1$33529$/21/<

)

(

13’&3,3&5 13′
13’

5(9,6,216

5(9

‘(6&5,37,21

1(:’5$:,1 $”(‘.,7180%(5%$//22165(&7$1/(6
&255(&7(”(6&5,37,21)25,7(021($&+ 7$%/(

‘$7( $39/

13’

,7(05(029(‘$//180%(56$%29(6+,)7(‘ ‘2:1’,,7,7(047<&+$1(’72

)

(

&
%

$

7+,5’$1*/(352-(&7,21

(1*)’)2505(9$

852409-0001 REV- 01/04/2024

Figure 24

&

%

‘(7$,/’ 6&$/(

7+(‘5$:,1*6$1’$//27+(5

81/(6627+(5:,6(63(&,),(‘

,1)250$7,21&217$,1(‘+(5(,1$5( 7+(&21),'(17,$/35235,(7$5<

,17(535(7’,06 72/6 72/(5$1&(6

‘5$:1

3523(57<2)29(5+($”225 &25325$7,21,1&/8’,1,76 $)),/,$7(‘68%6,’,$5,(6$1′ $)),/,$7(67+,6’5$:,1,1)250$7,21
,1&+(6 ,1:+2/(25,13$570$<127%( 0$,1$66<0(&+3,7/(9(/(5 &23,(‘,1$1<0$11(525’,6&/26(‘

3(5$60(<0 $//’,06$5(,1

; ;; ;;; $1*8/$5

&+(&.(‘ $33529(‘ 0$7(5,$/

72$1<21(:,7+28735,25:5,77(1
5(3/$&(0(173$576 &216(172)29(5+($”225

‘21276&$/( +2/(6

&25325$7,21’,6&/2685(2)$1< ‘5$:,1*25,1)250$7,21,6,17(1′(‘ 12772$1’6+$//12723(5$7($6$ /,&(16(25$87+25,=$7,217286(,7
‘ )25$1<385326(:,7+28763(&,),&

‘,06&,5&/(‘:,7+ 6<0%2/

$5(&5,7,&$/ 7248$/,7<‘(6,*1 )($785(6 08670((7

!

),1,6+

$33529$/6 ‘$7( -(//(5

‘(6&5,37,21

6,=( ‘:*12

:5,77(1&216(172)29(5+($”225 $33/,&$%/(,1352&(66 $//(20(75<29(51(‘%<‘&$”$7$%$6(

29(5+($’ ‘225&253 /(:,69,//(7(;$6

5(9

$

&25325$7,21

,163(&7,2167$1’$5’6

0$,1$66<0(&+3,7/(9(/(5

6&$/(

820 ($

6+((72)

©Copyright 2024 Overhead Door Corporation

32

REPLACEMENT PARTS CONTINUED…

(

&

NOTE: Part #’s represent a quantity of one (1) of the orderable kit or individual item. Kits include listed quantities of all items within.

Figure 25

%
SERVICE PARTS LISTS

ITEM #

PART #

PART DESCRIPTION

1

851053.0001 SERIAL# & MODEL TAG

2

852402.0001 LABEL, CRUSH HAZARD, STRUT, MPL

3

852403.0001 LABEL, CRUSH HAZARD, SPRING, MPL

4

852404.0001 LABEL, CAUTION, FORKS, DO NOT USE, MPL

$

5

852405.0001 LABEL, CRUSH HAZARD, PIT, MPL

6

852420.0001 LABEL, CAUTION, FORKS, DO NOT USE, LG, MPL

7 7+,5’$1*/(352-(&7,21

852421.0001 LABEL, DANGER, PINCH POINT, MPL

8

(1*)’)2505(9$

9

852406.0001 LAB EL, SPRING, STORED ENERGY, MPL

852401.0001 OPERATING INSTRUCTIONS AND DANGER PLACARD, MPL

10

852409.0001 MANUAL, OPERATION AND INSTALLATION

QUANTITY

1

1

1

29(5+($ 7+(‘5$:,16$1’$//27+(5
1 ,1)250$7,21&217$,1(‘+(5(,1$5(
‘225&2 7+(&21),'(17,$/35235,(7$5<
3523(57<2)29(5+($”225 &25325$7,21,1&/8’,1
,76 $)),/,$7(‘68%6,’,$5,(6$1′
1 $)),/,$7(67+,6’5$:,1*,1)250$7,21
,1&+(6 ,1&+(6 ,1:+2/(25,13$570$<127%( 0$,1$66<0(&+3 &23,(‘,1$1<0$11(525’,6&/26(‘

,17$(3/5(/35’5$(,6807016′(/,0$<(656(670,221/76+ (57:2$/,16((58$6;;;/13;;$7,73&$$,&(11&;++5))522)&():)((2532,,,6/3,/3+)’&5(,,(22,52$$0′(5577$/1$’,7((($:1)7<6’7,,2,’$21,22651(71)811<+,6&1%27,062,6$,913$$,1’1($’&/1’50$7’&55,/31$$3$+5$8+7$55(3,:($7′(1/25,5(0&:(/$,(,13125.6$’21’25,9(<$5$7′(+,’/(,,+1172’1′(7(‘625)2,$6527(55&$-,5%<1/30(2(3$$6/557(/(,2’2(915$ /,617$(3/5(/’35’$5$7(,680(7016′(/,0$<‘(65(6(667&0,2215/7,63+ 7(,527:21$/,16(*(58$6;;;/13;;$(&;5&/((,6):,(,6’9,//(7

72$1<21(:,7+28735,25:5,77(1
2 5(3/$&(0(17 &216(172)29(5+($”225

‘21276&$/(

72$1<21(:,7+28735,25:5,77(1
+2/(6 &216(172)29(5+($”225

‘21276&$/( +2/(6

&25325$7,21’,6&/2685(2)$1<
‘5$:,1*25,1)250$7,21,6,17(1′(‘ 12772$1’6+$//12723(5$7($6$ /,&(16(25$87+25,=$7,217286(,7
2’ )25$1<385326(:,7+28763(&,),&

‘,06&,5&/(‘:,7+
6<0%2/

$5(&5,7,&$/
7248$/,7<‘(6,*1 )($785(6 08670((7

!&’1/),2522&5$57(:31$7262,11(5<*$$2317258’,5256$13,+182$)’762/+,(6/52)&:10,51/2$,,2,=76776$++,22872,35182((71,56267$,3)127(7($8&(1$6,1<)6(‘,&$,(7′

’67)2(<,0$0467%88&2$5,/5/(,
&76/< (”0
(8$:6566,,77(,+1=0&(5((,7’7,&:$/12!

:5,77(1&216(172)29(5+($”225 $33/,&$%/(,1352&(66 $//(20(:755<,772(91(&5211(6′(%1<72’)&2$’9(‘5$+7($$%’$6′(2 25 $33/,&$%/(,1352&(66 $//(20(75<29(51(‘%<

&25325$7,21

,163(&7,2167$1’$5’6

1 &25325$07,2$1,1 $66<0(&+3,7/(9(/,1(653(&7,2167$1’$65’&6$/(

8200 $,(1$$

1

1

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

33

REPLACEMENT PARTS CONTINUED…

Figure 26

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

34

REPLACEMENT PARTS CONTINUED…

ITEM # 47 48 49 30 50 45 46 51

PART # 852500.0011

SERVICE PARTS LISTS PART DESCRIPTION REPLACEMENT HOLD DOWN PULL CHAIN W/ HARDWARE KIT PIN, CLEVIS, PLATED PIN, COTTER, PLATED FLAT WASHER, PLATED CHAIN, TWISTED LINK LINK, BEND-CLOSE RING, STAINLESS ROLLER, PLASTIC

52

REPLACEMENT UPPER SCISSOR LINKAGE W/ HARDWARE KIT

53

UPPER SCISSOR ARM

54 852500.0012 NUT, HEX, NYLON LOCKING, PLATED

55

BOLT, SHOULDER

3

LABEL, CRUSH HAZARD, SPRING, MPL

56

REPLACEMENT LOWER SCISSOR LINKAGE W/ HARDWARE KIT

57

LOWER SCISSOR ARM

58 852500.0013 PIN, CLEVIS, PLATED

14

PIN, COTTER, PLATED

15

FLAT WASHER, PLATED

59

REPLACEMENT SCISSOR LINKAGE CONNECTING PIN W/ HARDWARE KIT

60

852500.0014 PIN, PIVOT, PLATED

61

PIN, COTTER, PLATED

62

FLAT WASHER, PLATED

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

QUANTITY
1 1 1 1 2 1 2
1 2 2 1
1 2 2 1
1 2 3
35

REPLACEMENT PARTS CONTINUED…

ITEM # 63 64 65 15 66

PART # 852500.0015

SERVICE PARTS LISTS PART DESCRIPTION REPLACEMENT WINGPLATE W/ HARDWARE KIT WING, SPRING ADJUSTMENT SPACER, SADDLE, PLATED FLAT WASHER, PLATED NUT, HEX, PLATED

95 852264.0001 SPRING, MAIN ACTUATION

QUANTITY
1 1 1 2
3

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

36

REPLACEMENT PARTS CONTINUED…

Figure 27

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

37

REPLACEMENT PARTS CONTINUED…

ITEM # 67 68 69 70 71

PART # 852500.0016

SERVICE PARTS LISTS PART DESCRIPTION REPLACEMENT SNUBBER CHAIN & SPRING W/ HARDWARE KIT SPRING, SNUBBER NUT, PUSH SHACKLE, GALV CHAIN, GRADE 30, PLATED, .25IN THICK

72

REPLACEMENT LIP ACTUATION PIVOT W/ HARDWARE KIT

73

PIVOT, LIP ACTUATION

852500.0017

74

RING, RETAINING

15

FLAT WASHER, PLATED

75

REPLACEMENT LIP ACTUATION DAMPER W/ HARDWARE KIT

76

DAMPER, HYDRAULIC

77 852500.0018 PIN, CLEVIS, PLATED

49

PIN, COTTER, PLATED

30

FLAT WASHER, PLATED

78

REPLACEMENT LIP ACTUATION PIVOT LINKAGE W/ HARDWARE KIT

79

LINK, LIP ACTUATION

80 852500.0019 PIN, CLEVIS, PLATED

81

RING, RETAINING

82

FLAT WASHER, PLATED

68 852327.0001 SPRING, SNUBBER 86 852321.0001 SPRING, LIP ACTUATION

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

QUANTITY
1 1 2 1
1 1 1
1 2 2 6
1 2 2 4
1 1
38

REPLACEMENT PARTS CONTINUED…

Figure 28

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

39

REPLACEMENT PARTS CONTINUED…

ITEM # 25 26 27 18 19 20

PART # 852500.0004

SERVICE PARTS LISTS PART DESCRIPTION REPLACEMENT SAFETY LEG ASSY, W/HARDWARE KIT SAFETY LEGS SPRING, EXTENSION PIN, CLEVIS, PLATED PIN, COTTER, PLATED FLAT WASHER, PLATED

28

REPLACEMENT MAINTENANCE BRACE W/ HARDWARE KIT

29

MAINTENANCE BRACE

30

852500.0005 FLAT WASHER, PLATED

31

NUT, HEX, NYLON LOCKING, PLATED

32

BOLT, HEX, PLATED

2

LABEL, CRUSH HAZARD, STRUT, MPL

36

REPLACEMENT LIP KEEPERS, 16IN LIP W/ HARDWARE KIT

37

LIP KEEPER, 16IN LIP, RH

38

LIP KEEPER, 16IN LIP, LH

30

852500.0007 FLAT WASHER, PLATED

39

SPLIT WASHER, PLATED

40

NUT, HEX, PLATED

41

BOLT, HEX, PLATED

36

37

38

30

852500.0008

39

40

41

852409-0001 REV- 01/04/2024

REPLACEMENT LIP KEEPERS, 18IN LIP W/ HARDWARE KIT LIP KEEPER, 18IN LIP, RH LIP KEEPER, 18IN LIP, LH FLAT WASHER, PLATED SPLIT WASHER, PLATED NUT, HEX, PLATED BOLT, HEX, PLATED
©Copyright 2024 Overhead Door Corporation

QUANTITY
1 1 2 2 2
1 4 2 2 1
1 1 8 4 4 4
1 1 8 4 4 4
40

REPLACEMENT PARTS CONTINUED…

ITEM # 36 37 38 30 39 40 41

PART # 852500.0009

SERVICE PARTS LISTS PART DESCRIPTION REPLACEMENT LIP KEEPERS, 20IN LIP W/ HARDWARE KIT LIP KEEPER, 20IN LIP, RH LIP KEEPER, 20IN LIP, LH FLAT WASHER, PLATED SPLIT WASHER, PLATED NUT, HEX, PLATED BOLT, HEX, PLATED

42

REPLACEMENT SAFETY LEG PULL CHAIN W/ HARDWARE KIT

43

CHAIN, TWISTED LINK

44 852500.0010 SHACKLE, GALV

45

LINK, BEND-CLOSE

46

RING

QUANTITY
1 1 8 4 4 4
1 1 2 1

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

41

REPLACEMENT PARTS CONTINUED…

ITEM # 11

PART # 852050.107216 852050.107218 852050.107220 852050.127216 852050.127218 852050.127220

PART DESCRIPTION LIP, 16″L,72″W,35K LIP, 18″L,72″W,35K LIP, 20″L,72″W,35K LIP, 16″L,72″W,45K LIP, 18″L,72″W,45K LIP, 20″L,72″W,45K

Figure 29
SERVICE PARTS LISTS

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

QUANTITY 1
42

REPLACEMENT PARTS CONTINUED…

ITEM # 12 13 14 15

PART # 852500.0001

SERVICE PARTS LISTS PART DESCRIPTION REPLACEMENT LIP HINGE SHAFTS W/ HARDWARE KIT SHAFT, LIP HINGE PIN, COTTER, PLATED FLAT WASHER, PLATED

16

REPLACEMENT LIP KICKOUT LEVELER W/ HARDWARE KIT

17

LEVER, LIP KICKOUT

18

852500.0002 PIN, CLEVIS, PLATED

19

PIN, COTTER, PLATED

20

FLAT WASHER, PLATED

21

REPLACEMENT LIP MAINTENANCE BRACE W/HARDWARE KIT

22

LIP MAINTENANCE BRACE

18

PIN, CLEVIS, PLATED

852500.0003

23

PIN, COTTER, PLATED

20

FLAT WASHER, PLATED

24

SCREW, THUMB

33

REPLACEMENT WORKING RANGE TOE GUARD W/ HARDWARE KIT

34

TOE GUARD, MAIN PLATE

35

852500.0006 SCREW, HEX, THREAD CUTTING

6

LABEL, CAUTION, FORKS, DO NOT USE, LG, MPL

7

LABEL, DANGER, PINCH POINT, MPL

89

DECK TRANSPORTATION LOOP KIT

90

852500.0021 DECK TRANSPORTATION LOOP

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

QUANTITY
2 2 2
1 1 1 1
1 1 1 1 1
2 14 2 2
4
43

REPLACEMENT PARTS CONTINUED…

ITEM # 96 97 98 99 100 101

PART # 609431.12401 080356.1210 604701.1232 852282.0001 852334.0001 852334.0002

PART DESCRIPTION SCREW, SOCKET HEAD CAP NUT, HEX, PLATED BOLT, HEX, PLATED PLATE, LEVELING FEET PLUGS, DECK LARGE PLUGS, DECK SMALL

SERVICE PARTS LISTS

QUANTITY 4 1 1 2 4 4

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

44

REPLACEMENT PARTS CONTINUED…

Figure 30

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

45

REPLACEMENT PARTS CONTINUED…

NOTE: Right and left hand is always determined from outside the building looking in.

SERVICE PARTS LISTS

PART #

ITEM

PART DESCRIPTION

LH

RH

A

852310.0001

852310.0002 FULL RANGE TOE GUARDS

N/A

NONE

B

852319.0001

SIDE SEAL (BRUSH)

852319.0002

SIDE SEAL (RUBBER)

N/A

NONE

C

852332.0001

REAR SEAL (BRUSH)

N/A

NONE

D

852335.0001

CHAIN HOLE SEAL (BRUSH)

STANDARD / OPTION
OPTION STANDARD
OPTION 2 PER LEVELER
OPTION 2 PER LEVELER
STANDARD OPTION
2 PER LEVELER STANDARD OPTION
2 PER LEVELER

852409-0001 REV- 01/04/2024

©Copyright 2024 Overhead Door Corporation

46

Dock Mechanical Pit Leveler Model M68R Limited Warranty

Overhead Door Corporation (“Seller”) warrants to the original purchaser of Mechanical Pit Leveler (“Product”), subject to all of the terms and conditions hereof, that the Product and all components thereof will be free from defects in materials and workmanship under normal use for the following period, measured from the earlier of the date of installation by original purchaser or 60 days after shipping by Seller, provided that the owner maintains and operates the Product in accordance with the Owner’s Manual.

·

For the Product, Seller’s warranty covers the repair or replacement of the Product or its components for a period of 12 months.

·

The main spring is warranted for an additional 4 years following the 12-month warranty, for a total of 60 months.

Seller’s obligation under this warranty is specifically limited to repairing or replacing, at its option, any part which is determined by Seller to be defective during the applicable warranty period. Repair or replacement labor for any defective Product part or component is included for a period of one (1) year from the date of installation. After that, any labor charges are excluded and will be the responsibility of the purchaser.
This warranty is made to the original purchaser of the Product only, and it is not transferable or assignable. This warranty does not apply to any unauthorized alteration or repair of the Product, or to any Product or component which has been damaged or deteriorated due to improper installation, improper operation, operation beyond capacity, misuse, neglect, accident, failure to provide necessary maintenance, normal wear and tear, or acts of God or any other cause beyond the reasonable control of Seller.
THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ANY OTHER WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SELLER BE RESPONSIBLE FOR, OR LIABLE TO ANYONE FOR, SPECIAL, INDIRECT, COLLATERAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL DAMAGES, even if Seller has been advised of the possibility of such damages. Such excluded damages include, but are not limited to, loss of goodwill, loss of profits, loss of use, cost of any substitute product, interruption of business, other similar indirect financial loss or arising out of or related to the use, installation or maintenance of the Product (including premature product wear, product failure, property damage or bodily injury resulting from use of unauthorized replacement parts or modification of the Product). Seller’s sole obligation with regard to a Product that is claimed to be deficient in material or workmanship shall be as set forth in this Limited Warranty.
Claims under this warranty must be made promptly after discovery, within the applicable warranty period, and in writing to the Seller or to the authorized distributor or installer whose name and address appear below. The purchaser must allow Seller a reasonable opportunity to inspect any Product claimed to be defective prior to removal or any alteration of its condition. Proof of the purchase and/or installation date, and identification as the original purchaser, may be required.

Limited Warranty

MODEL


ORIGINAL PURCHASER INSTALLATION ADDRESS DISTRIBUTOR DISTRIBUTOR ADDRESS:





FACTORY ORDER #:


DATE OF INSTALLATION: SIGNATURE OF DISTRIBUTOR:



07/2023

References

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>

Related Manuals