GLOBAL INDUSTRIAL 293225 Power Parallel Double Scissor Lift Table User Manual

GLOBAL INDUSTRIAL 293225 Power Parallel Double Scissor Lift Table

POWER PARALLEL DOUBLE SCISSOR LIFT TABLE

Model No: 293225, 293226 The Power Parallel Double Scissor Lift Table is a movable lifter designed to lift or lower a rated load. It is important to operate the lift table properly to prevent serious injury.

Product Information

In accordance with EN1570, Safety Requirements for Lifting Tables, the basic requirements for the lift table are as follows:

• 100% of the rated load (maximum load) is uniformly distributed over the entire platform area.
• Or 50% of the rated load (maximum load) uniformly distributed over half the length of the platform.
• Or 33% of the rated load (maximum load) uniformly distributed over half the width of the platform.

The lift table must be installed securely either on the floor/ground or in a pit. Double or triple vertical scissors tables should be fixed to the floor/ground using expander bolts or similar methods. All other lift table types, except mobile units, should also be securely affixed to prevent unintentional movement. The base frame of the lift table is not self- supporting and requires flat and stable flooring. If necessary, the installation area or pit should be well drained. The mechanical/electrical installation should be done in accordance with the manufacturer’s instructions.

Product Usage Instructions

1. Utilize a lifting sling through the scissor package. Tie the base frame to the platform or the scissor mechanism.
2. Position the lift table in the desired location, ensuring that the fixed arm end is on the side where the load will be moved on or off at the upper level.
3. Check the operation of the safety frame on all sides.
4. Position the control device in a way that allows the operator to have a clear view of the lift table and the load at all times during operation.

Before operating the lift table, perform a daily inspection to identify any malfunctions or faults. Do not use the lift table if any issues are found. Check for scratches, bending, or cracks on the lift table. Ensure smooth movement of the table and check for hydraulic oil leakage. Verify the vertical creep of the table and ensure all bolts and nuts are firmly tightened.

When operating the lift table, follow these guidelines:

• Ensure that the load does not exceed the rated load.
• Distribute the load evenly on the lift table.

Follow proper safety precautions and warning instructions. It is important to note that any modifications to the lift table should only be done with the manufacturer’s written permission. Additionally, only use spare parts designated by the manufacturer.

WARNING!
If operating the lift table improperly, a person may be seriously injured. Therefore, operate properly according to the following instruction

• Read & thoroughly understand the instruction manual completely before using it. Follow all safety instructions strictly.
• It is necessary to check all safety devices before operation.
• Make sure that there are no obstacles in the working area.
• Do not put your foot or hand in the scissors mechanism or through the frame.
• Screw the lifting eyes on the base frame before working on the lift table.
• Do not overload the lift table. Load should be distributed on the table according to the relevant load distribution chart.
• Pay attention if the local voltage and frequency are as the same as the input specification of the lift table.
• Use the lift table on flat and solid ground.
• All the electrical connection and disconnection operations must be carried out by skilled and competent personnel.
• While operating, it is forbidden to contact the moving parts of the lift table.
• While the lift table moving, it is forbidden to adjust or move the load.
• It is forbidden to lift the load, which perhaps does harm to a
• person or another object.
• It is forbidden to operate the lift table while a person is under the table.
• Do not adjust the safety valve of the hydraulic power pack.
• it is forbidden to operate the lift table even if there is a small structural distortion.
• Do not use it in an explosive or flammable place.

Note
Maximum load refers to the load being uniformly distributed over the entire platform area. In accordance with EN1570, Safety Requirements for Lifting

Tables the basic requirements are:

1. 100% of the rated load(maximum load) is uniformly distributed over the entire platform area.
2. or 50% of the rated load(maximum load) uniformly distributed over half the length of the platform.
3.  33% of the rated load(maximum load) uniformly distributed over half the width of the platform

INSTALLATION OF LIFT TABLE ON THE FLOOR/GROUND OR IN A PIT

Double or triple vertical scissors tables must be fixed to the floor/ground by means of expander bolts or similar， We also recommend that all other lift table types， with the exception of mobile units， are securely affixed on the floor to Prevent unintentional movement

MECHANICAL/ELECTRICAL INSTALLATION

1. The base frame of the lift table is not as standard self-supporting.
   It is important that the flooring is flat and stable and that the
   installation area or pit, when necessary, is well drained

2. Utilize a lifting sling through the scissor package. Tie the base frame to the platform or the scissor mechanism. Locate the table in the desired position. Turn the fixed arm end to the side where the load will be moved on or off at the upper level. See the picture below.

3. Check the operation of the safety frame on all sides.

4. The control device should be positioned so that the operator has a clear view over the lift table and the load at all times when the lift is operated

Loading/unloading at the fixed-arm end Pit drawing

• Pit length=a+30mm
• Pit width=b+30mm
• Pit depth=closed
• height of table+5mm
• Platform length
• Platform width
• Drainage hole (when required)
• Tube for external cables and hoses φ60mm
• Lowest height

CAUTION!

• If operating the lift table improperly, a person may be injured. Therefore, operate properly according to the following instruction.
• The lift table is a movable lifter designed to lift or lower-rated loads. Do not use it for another purpose.
• Do not allow a person to operate the lift table, who does not understand its operation.
• It is forbidden to change the lift table without the manufacturer’s written admission.
• It is necessary to use the spare parts designated by the manufacturer.
• Make sure to keep a distance between the table and ambient objects enough to operate the lift table safely.
• Keep the hydraulic system in a clean and safe condition.
• The hydraulic power pack features an electric lowering control.
• The coils must be fed with the required voltage as described on those coils. The power supply voltage should not exceed 10% of the rated required voltage.
• Always do maintenance and routine check while the lift table is unloaded.
• The lift table is not waterproof and should be used in a dry environment.

DAILY INSPECTION

Daily inspection is effective to find the malfunction or fault on the lift table. Before the operation, check the lift table according to the following points.

CAUTION!

• Do not use the lift table if any malfunction or fault is found.
• Check all the terms of WARNING and CAUTION.
• Check scratches, bending, or crack on the lift table.
• Check the smooth movement of the table.
• Check if there is any hydraulic oil leakage.
• Check the vertical creep of the table.
• Check if all the bolts and nuts are firmly tightened.

Operating the lift table
The maximum capacity is not more than the rated load. Load should be distributed on the lift table equably.

LIFTING THE TABLE
CAUTION

• Do not overload the lift table.
• Ensure the balance of loading.
• Do not load partially or concentrically.
• Screw and loose emergency stop switch.
• Push the UP button and the power pack starts to work to lift the load.
• Lose the UP button and the power pack stops working.

LOWERING THE TABLE
WARNING

• Do not put your foot or hand in the scissors mechanism.

• Push the DOWN button and the table will lower.

• Lose the DOWN button and the table will stop.
  NOTE

• The table is equipped with an aluminum guard to avoid accidental danger.

• If an aluminum guard strikes an object while the table lowers, stop operation and check the lift table. After making sure no abnormality, strike the UP button slightly and then the electric system will function as before.

EMERGENCY CY STOP
There are two methods of emergency stop as follows.

• Push down the emergency stop switch and the movement of the table stops.
• Strike the aluminum guard upward and the movement of the table also stops.

TRANSPORTATION
If necessary, the lift table can be transported with attached ringbolts.

• Pay attention to the maximum capacity of lifting equipment to be used.
• Keep the ringbolts with reasonableness.

HYDRAULIC CIRCUIT & ELECTRIC PRINCIPLE DIAGRAM

See Figure 1 & Figure 2

SERVICE INSTRUCTIONS

• Do routine checks of fasteners, packing, and oil leaking.
• Do a routine check of the function of the lift table.
• Before servicing the lift table, make sure to turn off the AC power supply.
• After service, it is necessary to check the function of the lift table again.
• ONLY qualified personnel can do service work.
• Do a routine check of the micro switches on the safety guard.
• Do routine checks of the hydraulic system by listening to its noise, and touching the motor’s surface.
• Caution: It is necessary to turn off the AC power supply before touching the motor’s surface.
• Pay attention to clearing or even replacing the oil filter after operating for a long time.
• Appropriate lubrication is necessary to make the lift table work easily and have a prolonged service life.
• The following table is recommended to service the lift table periodically.

Content

| After every 500 hours’ working or every 3

months later

| After every 2000 hours’ working or

every year

---|---|---
Check oil level of oil tank| ☆|
Check the cleanliness of oil filter| ☆|
Fasten all the connecting parts again| ☆|
Check wear and tear of pressure oil pipes| ☆|
Check hydraulic cylinder| ☆|
Fix main parts tightly again| ☆|
Check the function of micro-switches| ☆|
Check whole working state of the lift table| ☆|
Lubricate all the joints and pivot points| ☆|
Check wear and tear of all axial bushes|  | ☆
Replace hydraulic oil for the first time| Accumulated working ten hours’
Replace hydraulic oil|  | ☆
Check oil leaking|  | ☆
Remark: ☆ stands for proceeding the item.

GREASING POINTS

1. Piston rod bearing
2. Lower running wheel
3. Lower arm fixing
4. Arm center
5. Upper arm fixing
6. Upper running wheel

When greasing the bearings,c the Lift Table must not be loaded when determining oil levels, bear in mind that the tank contains the greatest amount when the lift table is in its lowest position. Hydraulic oil must be treated as dangerous waste！

TROUBLESHOOTING

Note: Before service, it is necessary to put down the prop lest the table lowers accidentally.

Table cannot lift while motor works normally

| ◇    Eyebolt has not been removed

◇    AC voltage phrases mistake

◇    Electromagnetic dysfunctions

◇    The table is overloaded

| ◇    Remove eyebolt

◇    Correct AC voltage phrase

◇    Check the function of electromagnetic valve and repair it

◇    Remove excessive load

Table cannot lift and motor

does not work

| ◇    Lowering limit switch (if existed) damaged| ◇    Replace limit switch

Table cannot lower

| ◇    Lowering limit switch or micro-switch on safety guard damaged

◇    Electromagnetic valve dysfunctions

◇    Safety guard works

◇    Something wrong with electric circuit board

| ◇    Replace lowering limit switch or micro-switch.

◇    Check the function of electromagnetic valve and repair it

◇    Strike the UP button slightly

◇    Replace electric circuit board

Table’s legs go over limit position (if existed) while

table lowers

| ◇    Internal leaking in electromagnetic valve

◇    Packing damaged in hydraulic cylinder

|

◇    Repair electromagnetic valve and if necessary replace it

◇    Check and replace packing

Table cannot reach the

highest position

|

◇    Oil not enough

◇    Limit switch damaged

| ◇    Fill enough oil

◇    Check and repair limit switch. If necessary, replace it

SPECIFICATIONS

Motor

| Horsepower           (HP)| 2P/1.5KW| 3P/2.2KW
Voltage                 (V)| 110
Net Weight| (lbs)| 656| 955

The brand of oil is ISO HL32(such as Rando oil R＆O32、D.T.E.oil light、Turbo32)

PARTS LIST: M0DEL NO 293226

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