OVERHEAD DOOR M68R Mechanical Pit Leveler Instruction Manual
- June 16, 2024
- OVERHEAD DOOR
Table of Contents
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
-
Ensure that all safety precautions are followed before
operating the pit leveler. -
Prior to use, inspect the pit leveler for any visible damage or
signs of wear. Do not use if any damage is found. -
Position the pit leveler in front of the dock opening, ensuring
it is securely anchored to the ground. -
Activate the pit leveler using the designated controls. Follow
the manufacturer’s instructions for proper operation. -
Once the pit leveler is in the desired position, secure it
using any provided locking mechanisms. -
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
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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
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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.
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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.
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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
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OPERATING INSTRUCTIONS
Figure 2
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SNUBBER CHAIN SPRING
Figure 3
FULL RANGE TOE GUARD
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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.
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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.
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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.
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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.
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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.
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81/(6627+(5:,6(63(&),(‘ /2&$7,216+2:,6%$6(‘8321,13,7/(1*7+
PIT LEVELER DIMENSIONS
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DOCK LEVELER D IMENSIONS
DIMENSION NAME “A” “B” “C” “D” “E” “F” “G” “H” “I”
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&$728+’76571(/$/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<
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,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 ; ;;
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),1,6+
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$//(20(75<29(51(‘%<‘&$”$7$%$6(
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‘(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/<
)
(
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(1*)’)2505(9$
852409-0001 REV- 01/04/2024
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Figure 24
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‘(7$,/’ 6&$/(
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,17(535(7’,06 72/6 72/(5$1&(6
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3523(57<2)29(5+($”225 &25325$7,21,1&/8’,1,76 $)),/,$7(‘68%6,’,$5,(6$1′
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12772$1’6+$//12723(5$7($6$ /,&(16(25$87+25,=$7,217286(,7
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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) >>