Hyster-Yale Electric Pallet Truck MPW050-EN24T2248

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.

Forks completely lowered to relieve pressure from hydraulic circuit?

WARNING: Put blocks under both forks and on both sides of the drive tire. The blocks must prevent the lift truck from falling and causing personal injury or property damage.

NOTE: The caster wheel does not have to be removed from the lift truck frame to replace the wheel or the wheel axle.

Raise the drive wheel off the floor. Block the lift truck. See How to Put a Lift Truck on Blocks.

Remove the lock nut retaining the wheel on the wheel axle. Drive the wheel axle out of the arms and remove the wheel.

Align the wheel between both arms and install the wheel axle. Install the nut on the wheel axle. Tighten the nuts to 34 to 47 N•m (25 to 35 lbf ft).

Remove the blocks from under the lift truck and lower the truck to the floor. Test the operation of the truck prior to returning the truck to service.

Sign off on the caster wheels replacement

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.

REPAIR: A proximity switch is used to sense the position of the control handle arm.

Move the lift truck to a safe, level area before performing any repairs.

Turn the key switch to the OFF position.

Remove the upper drive unit compartment cover.

Remove the lower drive unit compartment cover.

Remove the four capscrews from the two-piece shield over the MDU and remove the shields.

Turn the key switch to the ON position.

Verify battery voltage at the proximity switch connector between pin #1 and pin #2.

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.

NOTE: The reservoir must be lowered below the suction tube before attempting to move the reservoir away from the lift truck. Remember the reservoir may contain hydraulic oil. Dispose of all used oil in accordance with local regulations.

Move the key to the OFF position. Disconnect the battery.

Remove the drive unit compartment cover.

Discharge the capacitor in the transistor controller.

Disassemble and plug the hydraulic lines to the hydraulic unit.

Remove the four capscrews retaining the reservoir to the hydraulic unit. Carefully remove the reservoir.

Clean the reservoir and the suction screen. Inspect the screen for damage and replace if necessary.