Maintenance knowledge of the electrical system of the pallet truck

The electrical system of the pallet jack is the main component of the pallet jack. If it is slightly damaged or damaged, it may cause the whole vehicle to malfunction or cause an accident. Therefore, it is very important to regularly maintain various parts of the electrical system of the pallet truck, which is very important for the safe use of electric storage trucks.

1. The pallet truck controller

The pallet truck controller is in use During the process, the correctness and flexibility of the movements should be maintained. Frequently inspect contacts for melt damage. If burns are found, fines should be filed and the controller should be inspected regularly.

2. Contactor of pallet truck

Contact of pallet truck contactor The dots should make good contact. It should always be checked whether the action is flexible and whether the contacts are burned out. If there is dirt and scars, it should be removed in time and checked regularly. Pallet truck resistance. Check whether the resistance of the pallet truck is damaged, and remove the dust on the resistance to facilitate the heat dissipation of the electrical system components of the pallet truck.

3, pallet truck walking motor

pallet truck motor is the electrical system of pallet truck one of the important parts. In use, special attention should be paid to whether the running motor is running normally. In the following cases, it should be eliminated according to the cause of the failure.

①, Unable to start.

When the pallet truck cannot be started, it may be because the fuse is blown, the control circuit is blocked, the motor coil is seriously short-circuited or open, the commutator is short-circuited, and the brush Poor contact, excessive load, or mechanical damage to bearings.

②, the speed is abnormal.

When this fault occurs, it may be a short circuit or open circuit of the coil, incorrect position of the brush, overload, damage to the bearing, low power supply voltage, etc.

③, the pallet truck has sparks.

Possible brush contact, uneven commutator surface, incorrect brush position, dirty surface, commutator short circuit, or motor coils caused by short circuit.

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