A few simple and important questions about electric pallet jacks

Hydraulic system of electric pallet truck
1. Does not rise
① Check whether the hydraulic pump has enough oil. If it is not checked whether the oil pressure output of the oil tank is sufficient, the treatment method: add hydraulic oil, check the oil pressure pump and the oil inlet pipeline.
② Check whether the internal leakage of the exhaust valve is serious, and replace it.
③ Check whether the oil cylinder is damaged due to internal leakage, and replace the oil seal or oil cylinder.
2. The oil cylinder of the electric pallet truck does not rise for half a liter
This phenomenon occurs in the following situations:
① There are air bubbles in the hydraulic oil in the fuel tank, and the hydraulic oil filter element should be checked and replaced.
② There are no air bubbles in the hydraulic oil in the fuel tank. Check and replace the oil line from the oil tank to the hydraulic pump.
③ If the oil cylinder leaks, replace the oil seal.
3. The steering is too heavy
① The oil pressure is too low, adjust the hydraulic oil flow to increase the pressure.
② The steering cylinder leaks oil, replace the oil seal.
③ The steering gear is severely worn or damaged. Replace the steering gear.
④ The steering wheel system bearing is damaged, replace the bearing.

Brake system
1. How to adjust the brake correctly.
Step 1: Fully loosen the handbrake handle and loosen the brake adjustment screw.
Step 2: When the brake master cylinder push rod is completely released, the blocks on both sides must be adjusted evenly.
Finally: adjust the handbrake and the master cylinder top rod, the free travel of the brake pedal must be maintained between 10-15MM.
2. How to judge and eliminate the unilateral fault of the electric pallet truck brake
① The obstacles between the left and right wheel brake pads and the brake drum are inconsistent.
② If the brake pads of individual wheels are oily or worn too much, or the brake pads of the two wheels are of different materials, repair or replace the brake pads.
③ The brake pad of one wheel is in poor contact with the brake drum or the elastic force of the return spring is too different from the other side. Repair or replace related accessories.
④ If the air pressure on both sides of the wheel or the tightness of the hub bearing is inconsistent, adjust it.

Safety warning system
1. The horn does not sound
① Check whether there is any disconnection between the power supply to the horn switch and the horn power cord. and repaired.
② Check whether the horn switch is burnt or bad contact, and repair it.
③ Directly test whether the horn on the power supply of the electric pallet truck is damaged and replace it.
2. Troubleshooting method of lighting system:
① Check whether the bulb is damaged and replace it.
② Check whether the switch is burnt, replace or repair it.
③ Check the fuse and circuit for short circuit, replace or repair.

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