97
CA967
Changing Drive Unit Oil
1 Remove gear lube monitor bottle from bracket.
2 Empty contents into suitable container.
3 Install monitor in bracket.
4 Bravo One Models: Remove propeller, place drive unit in full trim
limit IN position, remove OIL FILL/DRAIN SCREW and sealing
washer, and drain oil.
5 All Other Models: Place drive unit in full trim limit OUT position,
remove OIL FILL/DRAIN SCREW and sealing washer, and drain oil.
6 Remove OIL VENT screw and sealing washer. Allow oil to drain
completely.
IMPORTANT: If any water drained from OIL FILL/DRAIN hole, or
if oil appears milky, drive unit is leaking and should be checked
immediately by your Authorized Mercury MerCruiser Dealer.
7 Lower drive unit so propeller shaft is level. Fill drive unit, through
OIL FILL/DRAIN hole, with specified gear lube until an air-free
stream of lubricant flows from OIL VENT hole.
IMPORTANT: Use only Quicksilver High Performance Gear
Lube in drive unit.
8 Install OIL VENT screw and sealing washer.
9 Continue to pump gear lube into the gear lube monitor circuit until
gear lube appears in the gear lube monitor.
10Fill monitor to FILL mark. Ensure that rubber gasket is inside cap.
Install cap; DO NOT overtighten.
11 Remove pump from OIL FILL/DRAIN hole. Quickly install sealing
washer and OIL FILL/DRAIN screw. Tighten securely.
12Bravo One and Alpha Models: Grease propeller shaft heavily,
with specified lubricant (Refer to Propeller Installation). Reinstall
propeller and torque nut to 55 lb-ft (75 Nm) MINIMUM.
13Recheck oil level after first use.
IMPORTANT: Oil level in gear lube monitor will rise and fall
during drive operation; always check oil level when drive is cool
and engine is shut down.
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