Maintenance Notes for Double Pallet Truck Under Heavy Warehouse Loads

Never keep running the truck when abnormal noise comes from the motor. Abnormal noise is an early warning of faults for double pallet trucks. Abnormal motor noise of electric double pallet truck will turn minor issues into costly damage if ignored. Many operators keep working through the noise during peak shipment periods, which disrupts warehouse schedules and raises repair costs.

Double pallet trucks bear heavier loads than standard pallet jacks, so their motors run continuously under high load. Different sounds point to different faults. A fine rustling sound usually comes from worn or under-lubricated bearings after heavy-duty cycles. A dull humming vibration often means loose mounting bolts that create gaps between the motor and frame and trigger resonance. Sharp squealing noise mostly results from severely worn carbon brushes with unstable contact, which needs urgent handling. Shut down and cut off power immediately once abnormal noise appears, and avoid repeated start-stop tests to prevent secondary damage.

To reduce motor failures, follow the maintenance notes for double pallet truck that fit its heavy-load characteristics. Clean dust, wood chips and pallet debris off the motor after each shift. Built-up debris blocks heat dissipation, and high temperature is the main cause of premature motor aging. Check motor fixing bolts and wiring terminals weekly to rule out loose connections and sparks. Refill lubricating grease on schedule with qualified products, and shorten the lubrication cycle compared with single pallet trucks.

Battery condition also affects motor performance. Operation with unstable voltage or low battery causes fluctuating current, which triggers abnormal noise and accelerates component aging. Do not drain the battery fully before charging, and keep the charging area ventilated and dry. If long continuous heavy-load work is required frequently, consult the manufacturer for reinforced motor versions.

Most faults stem from poor daily maintenance. Stop the truck for inspection once you hear abnormal noise from the electric double pallet truck. Standardized maintenance extends motor service life and prevents sudden downtime during peak hours for smooth warehouse handling.