Lubrication of the Power Steering Motor, Electric Vehicle

wv mm 46.06.000
  1. Park the vehicle on a level surface, shut down the vehicle, and set the parking brake. Chock the tires.
  2. Open the hood.
  3. Evacuate the refrigerant system. For instructions, see Evacuating, Refrigerant Service Operations, Cab Heater and Air Conditioner of the Walk-In Van Chassis Workshop Manual.
  4. Remove the compressor fittings at the end of the connected hoses. See Fig..

    1. Compressor Fittings

    Fig. 1, Remove Compressor Fittings

  5. Remove the bolts, nuts and washers that attach the compressor box bracket to the front box and remove the assembly. See Fig..

    1. Remove Bolts, Nuts and Washer Assembly

    1. Compressor Box

    1. Compressor Box Bracket

    Fig. 2, Compressor Box Bracket

  6. Using a clean rag, wipe all dirt from both power steering motor grease fittings. See Fig. for the location of the grease fittings.

    1. Grease Fittings

    Fig. 3, Power Steering Motor Grease Fittings

    7. Important: Due to the high operating temperatures of the motor, use Darmex RPL-707 grease for motor lubrication.

    Notice: Do not over-lubricate the power steering motor. Over-lubrication of a motor can seriously damage it by forcing grease into motor windings, as well as the centrifugal switch, causing it to malfunction.

  7. Using a hand-type grease gun with Darmex RPL-707 grease, insert the adaptor over the grease fittings and pump the handle two or three times to fill the grease cavity.
    Listen closely as the grease is pumped in. When you hear a sound like air being released, the grease cavity is full.
  8. Wipe off any excess grease from the fittings.
  9. Install the compressor assembly to the front box and refrigerant system.
  10. Charge the refrigerant system per, see of the Walk-In Van Chassis Workshop Manual.
  11. Close the hood.
Note:
Parent topic: Steering
Document Number: 0000117116
Manual Publication Date: 2024-05-14
Topic Publication Date: 2024-11-19