Lubrication of the Slip Joint Spline

cen mm 41.02.000

Note: Vehicles equipped with Meritor RPL Series drivelines do not require periodic lubrication.

  1. If equipped with a grease fitting, wipe all old grease and dirt from the slip joint grease fitting. See Fig., Ref. 1.
  2. Use a hand-type grease gun or a high-pressure gun with a low-pressure adapter, to lubricate the slip joint. Add multipurpose chassis grease (lithium 12-hydroxy stearate, NLGI Grade 1 or Grade 2, with EP additives) until it appears at the pressure-relief hole in the yoke plug. Then cover the relief hole with your finger, while continuing to apply gun pressure until new grease appears at the slip joint seal. See Fig.. This ensures complete lubrication of the splines.

    • After grease appears, cover the pressure-relief hole while continuing to lubricate.

    1. Slip Joint Grease Fitting (with grease gun attached)

    2. Yoke Plug

    3. Grease

    4. Half-Round Yoke

    5. Yoke Plug Pressure-Relief Hole

    6. Slip Joint Seal

    7. Full-Round Yoke

    8. U-Joint Grease Fitting

    Fig. 1, Slip Joint and U-Joint Lubrication

  3. Wipe the purged grease from the pressure-relief hole and slip joint seal, and any excess grease from the grease fitting.
Note:
Parent topic: Lubrication of the Driveline
Document Number: 0000122391
Manual Publication Date: 2025-02-11
Topic Publication Date: 2024-06-04