Faults and solutions of the electric stacker

Faults and solutions of the electric stacker

1.The electric stacker is unable to lift .
Failure cause: gear pump and pump wear excessive; Improper high pressure of relief valve in reversing valve; Oil pressure pipeline leakage; Hydraulic oil temperature is too high; The sliding frame of the door frame is stuck. The motor speed of oil pump is too low.
Solution: replace wear or gear pump; Readjust; Check and maintain; Replace unqualified hydraulic oil and check the cause of oil temperature rise; Check and adjust; Check motor and troubleshoot.
2. The driving wheel speed of electric stacker truck is seriously slowed down or the driving motor is seriously overloaded.
Fault cause: battery voltage is too low or pile head contact resistance is too large; Motor commutator plate carbon deposition causes short circuit between plates; Motor brake is improperly adjusted to make the motor run with brake; Drive head gearbox and bearing lack of lubrication or base stuck; Motor armature shorted. Solution: Check battery terminal voltage or clean pile head when electric stacking car load; Clean the commutator; Adjust the brake clearance; Check and clean and re-fill lubricating oil to remove blocking phenomenon; Replace the motor.
3. The automatic tilt of the door frame by electric stacking is difficult or the action is not smooth enough.
Fault cause: inclined cylinder wall and seal ring excessive wear; Stem spring in reversing valve fails; Piston stuck cylinder wall or piston rod bent; Excessive fouling in inclined cylinder or too tight seal.
Solution: Replace O type sealing ring or cylinder; Replace the qualified spring; Replace damaged parts.
4. The electric stacker electrical operation is not normal.
Failure cause: the micro switch in the electrical box is damaged or improperly adjusted; The fuse of the main circuit or the fuse of the control appliance is blown; Battery voltage is too low; Contactor contact burning, or too much dirt caused by poor contact; The contact does not move.Solution: Replace the micro switch, readjust the position; Replace the fuse of the same model; Recharge; Repair contacts, adjust or replace contactors; Check whether the contactor coil is open or replace the contactor.
5.Electric stacking fork frame can not rise to the top.
Failure cause: insufficient hydraulic oil.
Solution: Fill up the hydraulic oil.