Power Trim Fluid; Checking - MerCruiser Axius 350 MAG User Manual

IMPORTANT: If any water drained from the gear lube fill and drain hole, or if the gear lube
appears milky, the sterndrive unit is leaking and should be checked immediately by your
authorized Mercury MerCruiser dealer.
6. Lower the sterndrive unit so that the propeller shaft is level. Fill the sterndrive unit,
through the fill and drain hole, with specified gear lubricant until an air‑free stream of
lubricant flows from the vent hole.
Tube Ref No.
IMPORTANT: Use only Mercury/Quicksilver High Performance Gear Lubricant in the
sterndrive unit.
7. Install the vent screw and sealing washer.
8. Continue to pump gear lubricant into the gear lube circuit until the lubricant appears in
the gear lube monitor.
9. Ensure that the rubber gasket is inside the cap and install the cap. Do not overtighten.
10. Fill the monitor so that the gear lube level is in the operating range. Do not overfill.
NOTE: The capacity includes the gear lube monitor.
Model
Bravo Three—dual water pickups
Bravo Three—side water pickups only
11. Remove the pump from the fill and drain hole. Quickly install the sealing washer and
the fill and drain screw. Tighten securely.
12. Reinstall the propeller. Refer to Propellers.
13. Recheck the gear lube level after the first use.
IMPORTANT: The level of oil in the gear lube monitor will rise and fall during sterndrive
operation. Check the level only when the sterndrive is cool and the engine is shut down.

Power Trim Fluid

Checking

IMPORTANT: Check the oil level with the sterndrive unit in the full down/in position only.
1. Place the sterndrive unit in full down/in position.
90-899883234 JANUARY 2008
Description
High Performance Gear
87
Lubricant
Where Used
Sterndrive unit
Capacity
2736 mL (92‑1/2 oz)
High Performance Gear Lubricant
2972 mL (100‑1/2 oz)
Section 5 - Maintenance
Part No.
92-858064K01
Fluid Type
Page 83