Electric stackers are a type of storage equipment that uses battery power as energy and motors as power sources. The main structures include: batteries, motors, hydraulic pumps, cylinders, piston rods, forks, chains, controllers and other devices. Its main function is to lift heavy objects to the required height. It is generally used in warehouses, workshops and other places where logistics handling is required. When used with pallets, it can greatly improve the efficiency of storage.
Specific issues
1. The speed of the stacker's drive wheel is significantly reduced or the drive motor is seriously overloaded
Reason: The battery voltage is too low or the pile head contact resistance is too large; carbon deposits between the motor commutator segments cause short circuits between segments; improper adjustment of the motor brake causes the motor to run with brakes; the drive head gearbox and bearings lack lubrication or the base is blocked; the motor armature is short-circuited.
Solution: Check the battery terminal voltage or clean the pile head when the stacker is loaded; clean the commutator; adjust the brake clearance; check, clean and refill the lubricant to remove the blocking phenomenon; replace a new motor.
2. The stacker is weak or cannot lift
Reason: excessive wear of the gear pump and the pump body; improper high pressure of the overflow valve in the reversing valve; oil leakage in the oil pressure pipeline; excessive oil temperature of the hydraulic oil; jamming of the mast slide; too low speed of the oil pump motor.
Solution: Replace the worn or gear pump; readjust; check and repair; replace the unqualified hydraulic oil and check the reason for the increase in oil temperature; check and adjust; check the motor and troubleshoot.
3. The automatic tilting of the stacker mast is difficult or the movement is not smooth enough
Reason: excessive wear of the tilting cylinder wall and the sealing ring; failure of the valve stem spring in the reversing valve; the piston is stuck to the cylinder wall or the piston rod is bent; too much dirt is accumulated in the tilting cylinder or the seal is too tight.
Solution: Replace the O-ring or cylinder; replace the qualified spring; replace the damaged parts; clean and adjust.
4. The oil pump pressure is insufficient or the speed is too slow
Reason: The sealing ring in the pump cover groove is damaged and there is too much internal leakage; the gear is worn; the speed of the oil pump motor is reduced; there is foreign matter blocking the pipeline.
Solution: Replace; replace the oil pump; check the commutator, remove the carbon deposits between the slices, adjust the position of the carbon brush; check and clean.
5. Abnormal operation of the appliance
Reason: The micro switch in the electrical box is damaged or the position is improperly adjusted; the main circuit fuse or the control electrical fuse is blown; the battery voltage is too low; the contactor contacts are burnt, or there is too much dirt causing poor contact; the contacts do not work.
Solution: Replace the micro switch and readjust the position; replace the same type of fuse; recharge; repair the contacts, adjust or replace the contactor; check whether the contactor coil is open or replace the contactor.
