Section 5 - Maintenance
Page 88 90-879172181 eng FEBRUARY 2011
6. Remove the gear lube monitor cap.
Shown without drive cover
a - Gear lube monitor
b - Cap
7. Operate the crankcase oil pump and remove the gear lube from the drive. Pump the gear lube into a suitable container.
Properly dispose of the gear lube.
IMPORTANT: If any water exits the fill and drain hole, or if the gear lube appears milky, the drive is leaking. Contact your
Cummins MerCruiser Diesel Authorized Repair Facility immediately.
8. Remove the crankcase oil pump and the two adapters.
9. Attach the specified gear lube pump or equivalent.
a. Locate the adapter provided with the gear lube pump.
Description Part Number
Quicksilver Gear Lube Pump 91‑850730Q1
b. Assemble the sealing washer, spacer, and sealing washer on the threaded end of the adapter.
NOTE: The spacer is required to prevent the adapter from threading in past the orifice in the fill and drain hole of the
steering actuator. The adapter should thread approximately 7 mm (1/4 in.) into the actuator housing.
a - Adapter
b - Sealing washer
c - Spacer
Qty. Description Part Number
1 Spacer 23‑806445
1 Sealing washer 26‑830749
c. Install and hand‑tighten the adapter assembly into the fill and drain hole of the steering actuator.
IMPORTANT: Use Mercury or Quicksilver High Performance Gear Lube in the drive.