A complete list of common faults and troubleshooting methods for electric stackers and the maintenance cycle of accessories

Common faults and troubleshooting methods for electric stackers, generally follow this method to find out the cause of the fault, so as to get timely maintenance.

Elimination method of the cause of the serial number failure 1 The electric stacker does not work (the contactor does not work) ① The control circuit fuse has been burned out and replaced ② The power switch has poor contact or damage repair or replacement ③ The main circuit fuse has been blown Replacement ④ The electric lock switch is in poor contact or damaged. Repair or replace. ⑤ The battery connection is loose or off. Tighten the electric stacker. The electric stacker will not work (contactor work). ① The driving wheel near the magnetic brake does not engage, and the vehicle is under braking. Repair or replace ② Repair or replacement of the carbon brushes of the walking motor or poor contact between the commutator and the carbon brush. ③ The excitation coil of the walking motor is broken or the wire ends have poor contact. Repair or replace. ④ The contacts of the contactor have poor contact. Repair or replace. ⑤ The MOSFET tube circuit board is faulty. Repair or replace 2 The electric stacker can only move forward (or backward) ① The contactor is in poor contact or burned out, repair or replace ② The circuit board is faulty, repair or replace 3. The electric stacker cannot be stopped while the electric stacker is driving. The contactor is damaged and moves. If the contact is not reset, cut off the power supply and replace the contactor. 4 Brake failure ① The installation bolt of the micro switch is loose or damaged. The adjustment or fastening bolt is damaged, or the micro switch is replaced. ② The wiring of the magnetic brake is loose or the magnetic brake is damaged and tightened. Bolt or repair the magnetic brake ③ The brake pad of the magnetic brake is worn Replace the brake pad 5 Steering is stuck ① The steering gear bearing is damaged Replace the bearing ② The steering gear bearing is out of oil or too much dust Clean the bearing 6 The driving wheel steering is heavy and noisy , The motor is overloaded. ① The gears and bearings are stuck with foreign matter. Clean or replace the bearing. ② There is a gap adjustment gap in the bearing installation. ③ The front wheel bearing is damaged. Replace the bearing. The 7 fork does not rise. ① Overload use to reduce the load. ② The pressure of the overflow valve is too low to increase ③ The lifting cylinder has abnormal internal leakage. Replace the seals. ④ The hydraulic oil is not enough. Add proper amount of filtered hydraulic oil. ⑤ The battery voltage is not enough to charge the battery. ⑥ The handle is not in the horizontal or vertical position, and the oil pump motor is not energized. The operation is improper. ⑦ The oil pump motor is damaged. Repair or replacement ⑧ Repair or replacement of oil pump damage ⑨ Repair or replacement of damage to the rising key switch ⑩ Electric lock not opened or damaged repair or replacement 11 Battery voltage is severely insufficient to charge 8 The fork does not drop after rising ① The inner mast is overloaded and deformed Repair or replace ② Repair or replace the outer mast overload and deformation ③ Repair or replace the jammed rollers of the mast ④ Repair or replace the mast guide rod bending ⑤ Repair or replace the oil return hole ⑥ The solenoid valve of the hydraulic station is out of control Remove the solenoid valve fault 9 Battery terminal voltage drops (after charging ) ① Repair or replacement of individual single-circuit battery damage ② The battery level is low, add electrolyte ③ There are impurities in the electrolyte, replace the electrolyte 10 The body shakes when traveling ① The nut of the driving wheel and the fixed wheel is loose or off. Tighten the fixed nut. Maintenance cycle of consumables and some parts: Project maintenance content Maintenance cycle remarks Fork wheel bearing replacement 1200 hours Fork wheel replacement 1200 hours Seal replacement 1200 hours replacement of damage found at any time Replace the gearbox, replace the lubricating oil, 1000 hours, hydraulic oil replacement, 1000 hours of high-pressure oil pipe replacement Damage found in 2000 hours, replace the hydraulic oil tank filter at any time, clean the drive motor for 1000 hours, check the carbon brushes and Bearing 1000 hours, steering motor check carbon brush and bearing 1000 hours, oil pump motor check carbon brush and bearing 1000 hours
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