GLOBAL INDUSTRIAL 293232 U-Shape Power Scissor Lift Table User Manual

GLOBAL INDUSTRIAL 293232 U-Shape Power Scissor Lift Table

Product Information

• Product Name: U-Shape Power Scissor Lift Table
• Model Number: 293232
• Maximum Capacity: 2200 lbs
• Collapsed Height: 3.35 inches
• Maximum Height: 33.50 inches
• Platform Length: 59 inches
• Platform Width: 50 inches
• Approx. Lifting Time with Rated Capacity: 25~35 seconds
• Motor: 2P/1.5KW
• Voltage: 110V
• Net Weight: 572 lbs

Product Usage Instructions

1. WARNING! Read and understand the manual before operating the lift table to avoid serious injury.
2. CAUTION! Operate the lift table properly to avoid injury.
3. DAILY INSPECTION: Perform a daily inspection before operation. Do not use the lift table if any malfunction or fault is found. The inspection should include:
   • Checking for scratches, bending, or cracks on the lift table.
   • Checking the smooth movement of the table.
   • Checking for hydraulic oil leakage.
   • Checking the vertical creep of the table.
   • Checking if all bolts and nuts are firmly tightened.
4. LOADING: The maximum capacity of the lift table is 2200 lbs. The load should be distributed evenly on the lift table. Do not overload or load partially or concentrically.
5. LIFTING THE TABLE:
   • Screw and lose the emergency stop switch.
   • Push the UP button to start the power pack and lift the load.
   • Release the UP button to stop the power pack.
6. LOWERING THE TABLE: Do not put your foot or hand in the scissors mechanism.
7. SERVICE INSTRUCTIONS:
   • Perform routine checks of fasteners, packing, and oil leakage.
   • Check the function of the lift table regularly.
   • Turn off the AC power supply before servicing the lift table.
   • After servicing, check the function of the lift table again.
   • Only qualified personnel should perform service work.
   • Check the micro-switches on the safety guard regularly.
   • Check the hydraulic system by listening to its noise and touching it.

Hydraulic Circuit & Electric Principle DiagramRefer to Figure 1 for the hydraulic circuit and Figure 2 for the electric principle diagram.

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. Follow all safety instructions strictly.
• It is necessary to check all safety devices before operation.
• Make sure that there are no obstacles in t he working area.
• Do not put foot or hand in scissors mechanism or through 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 relevant load d istribution chart.
• Pay attention if local voltage and frequency is as 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 personal.
• While operation, it is forbidden to contact the moving parts of the lift table.
• While the lift table moving, it is forbidden to adjust or to move the load.
• It is forbidden to lift the load, which perhaps does harm to a person or oth er object.
• It is forbidden to operate the lift table while a person is under the table.
• Do not adjust the safety valve of hydraulic power pack.
• It is forbidden to operate the lift table even if there is small structure distortion.
• Do not use in an explosiv e or flammable place.

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 load.
• Do not us e it for other 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 manufacturer’s written admission.
• It is necessary to use the spare parts designated by manufact urer.
• Make sure to keep a distance between the table and ambient objects enough to operate the lift table safely.
• Keep the hydraulic system under clean and safe condition.
• The hydraulic power pack features an electric lowering control. The coils must be fe d 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 operation, check the lift table according to the following points.

CAUTION!

• Do not use the lift table if an any malfunction or fault is found.
• Check all the terms of WARNING and CAUTION.
• Check scratches, bending or crack on the lift table.
• Check 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

LOADING

• The maximum capacity of the lift table is 2200 lbs . 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 power pack starts to work to lift the load.
• Loose the UP button and power pack stops working.

LOWERING THE TABLE

• WARNING! Do not put foot or hand in scissors mechanism.
• Push the DOWN button and the table will lower.
• Loose the DOWN button and the table will stop.

NOTE

• The table is equipped with an aluminum guard to avoid accidental danger.
• If aluminum guard str ikes an object while the table lowers, stop operation and check the lift table. After making sure no any abnormality, strike the UP button slightly and then the electric system will function as before.

EMERGENCY STOP

• There are two methods of emergency stop as follows.
• Push down the emergency stop switch and the movement of table stops.
• Strike aluminum guard upward and the movement of table also stops.

TRANSPORTATION

• If necessary, the lift table can be transported with attached ringbolts.
• Pay attention to t he maximum capacity of lifting equipment to be used.
• Keep the ringbolts with reasonableness.

SPECIFICATIONS

Motor

| Horsepower (HP)| 2P/1.5KW
Voltage (V)| 110
Net Weight| | (lbs.)| 572

HYDRAULIC CIRCUIT & ELECTRIC PRINCIPLE DIAGRAM

Fig. 2 Electric Principle Diagram.

SERVICE INSTRUCTIONS

• Do routine check of fasteners, packing and oil leaking.
• Do routine check of the function of the lift table.
• Before service 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 routine check of the micro micro-switches on the safety guard.
• Do routine check of the hydraulic system by listening its noise, touch motor’s surface.

Caution:

• It is necessary to turn off the AC power supply before touch motor’s surface.
• Pay attention to clear or even replace 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.
• 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’ of 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.

Instruction for Power Pack Installment

1. Loosen the bolt
2. a) Install the vertical pole and the cover by tightening the the crew as being shown in the figure;
   • b) Insert the plug connecting with the electrical box into the a socket on the pole, then tighten the screw.

TROUBLESHOOTING

Note: Before service it is necessary to screw two eyebolts into relevant screw-holes on the basis lest the table lowers accidentally.

removed

◇    AC       voltage       phrases mistake

◇    Electromagnetic dysfunctions

◇    The table is overloaded

| ◇    Remove eyebolt

◇    Correct AC voltage phrase

◇    Check the function of the electromagnetic valve and repair it

◇    Remove excessive load

Table cannot lift and motor does not

work

| ◇    Lowering limit switch (if existed) damaged| ◇    Replace the 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 the lowering limit switch or micro-switch.

◇    Check the function of the 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 the 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

ELECTRICAL BOX

PART LIST MODEL

NO. 293232

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