Hyster-Yale Electric Pallet Truck MPW050-EN24T2260

1. Move the lift truck to a safe, level area.

2. Block drive wheel to prevent truck from rolling.

3. Disconnect battery connectors and turn the key switch to the OFF position.

4. Remove the upper drive unit compartment cover.

5. Remove the lower drive unit compartment cover.

6. Discharge the capacitor. See Special Precautions.

7. Remove nut retaining the key switch to bracket.

WARNING: Batteries are heavy and can cause personal injury. Use care to avoid injury. DO NOT put hands, arms, feet, and/or legs between the battery and a solid object. Make sure the capacity of the crane and spreader bar is greater than the weight of the battery. The weight of the battery is normally shown on the battery case. The maximum battery weight is shown on the lift truck nameplate. The spreader bar must NOT be made of metal or it must have insulated straps.

WARNING: Put blocks under each side of the truck under the drive unit frame. Position blocks on both sides of the load wheels. The blocks must prevent the lift truck from falling and causing personal injury or property damage.

WARNING: The capacitor in the transistor controller can hold an electrical charge after the battery is disconnected. To prevent electrical shock and personal injury, discharge the capacitor before inspecting or repairing any component in the drive unit compartment. Wear safety glasses. Make certain the battery has been disconnected. Refer to the section Steering Mechanism 1600 YRM 1004.

CAUTION: Make certain the hydraulic cylinder is fully collapsed.

Remove the drive unit compartment cover.

Disconnect the battery. Use a spreader bar and lifting device to remove the battery. DO NOT allow the battery move from side to side. Make sure the battery cables have clearance.

Raise the drive wheel off the floor and put blocks under both sides of the drive unit frame.

Drain the hydraulic oil from the hydraulic unit into an appropriate container.

Tag and disconnect all of the electrical wires from the hydraulic unit.

Put blocks under each fork. Position blocks on both sides of the drive wheel. The blocks must prevent the lift truck from falling and causing personal injury or damage.

WARNING: Be careful when removing or installing snap rings. The snap rings can come loose during removal or installation with enough force to cause a personal injury. Always use the correct snap ring pliers, and wear eye and face protection during removal and installation.

1. Raise the motorized lift truck forks/platform to one half its maximum height.

2. Place blocks under the forks. Block the drive wheel. See the section Periodic Maintenance 8000 YRM 1009, How to Put a Lift Truck on Blocks.

3. Remove the drive unit compartment cover.

4. Separate the frames. Refer to the section Frame 100 YRM 1015.

5. Manually collapse the piston into the cylinder while depressing the lower switch.

WARNING: DO NOT make repairs or adjustments unless you have been properly trained and authorized to do so.

Always wear the proper protective equipment including eye protection and petroleum resistant gloves when servicing hydraulic components.

Completely lower all lift components and relieve pressure before disassembling any part of the lift pump or disconnecting any hydraulic hoses.

The hydraulic oil is hot at normal operating temperatures. Be careful when draining the oil.

Never put your hands on pressurized hydraulic components. Pressurized hydraulic oil escaping through pin-hole leaks can be injected into the skin.

CAUTION: DO NOT OVERFILL. Oil will leak from the breather/ filler cap if too full.

Check the hydraulic oil level in the reservoir when oil is at room temperature.

Enter the hydraulic oil temperature

Forks completely lowered to relieve pressure from hydraulic circuit?

NOTE: When inspecting brush conditions and motor commutator conditions for head damage or abnormal wear, the battery maintenance and condition should be eliminated as a cause first.

NOTE: The brushes and commutator can be inspected, the brushes can be replaced, and Stoning the Commutator can be done with the motor installed in the truck.

NOTE: Inspect the brushes and commutator every 350 hours for best operation and to prevent motor damage.

NOTE: The following procedure is for inspecting the brushes and commutator with the motor installed in the lift truck.

WARNING: Compressed air can move particles so that they cause injury to the user or to other personnel. Make sure that the path of the compressed air is away from all personnel.

NOTE: Vacuum cleaning, when possible, is the recommendation of manufacturers of electric motors.

Drive wheels raised for commutator rotation?

Battery removed for motor access?

Brush covers removed at rear of motor?