6E-14 - LOWER UNIT
90-824052R3 JUNE 2002
7. Remove 2 locknuts from bottom middle of anti-
cavitation plate.
a
b
c
51866
a - Bolt (Secures Trim Tab)
b - Bolt (Inside Trim Tab Cavity)
c - Locknuts and Washers
8. Remove locknut from the front gear housing
mounting stud.
9. Loosen the side mounting locknuts. (DO NOT
attempt to remove one nut before opposite side
is loosened sufficiently, or driveshaft housing
could be damaged.)
51873
a
b
a - Front Mounting Locknut
b - Side Mounting Locknut (One Each Side)
10. Pull gear housing away from driveshaft housing
as far as the loosened nuts (in Step 9) will allow,
then remove loosened nuts. (DO NOT allow gear
housing to fall, as it now is free.)
11. Pull gear housing from driveshaft housing.
DRAINING AND INSPECTING GEAR HOUSING
LUBRICANT
1. Place gear housing in a suitable holding fixture or
vise with the driveshaft in a vertical position, as
shown.
2. Position a clean drain pan under gear housing
and remove “Fill” and “Vent” screws from gear
housing.
3. Inspect gear lubricant for metal particles.
Presence of a small amount of fine metal
particles (resembling powder) indicates normal
wear. Presence of larger particles (or a large
quantity of fine particles) indicates need for gear
housing disassembly, and component
inspection.
4. Note the color of gear lubricant. White or cream
color indicates presence of water in lubricant.
Check drain pan for water separation from
lubricant. Presence of water in gear lubricant
indicates the need for disassembly, and
inspection of oil seals, seal surfaces, O-rings and
gear housing components.
IMPORTANT: Gear lubricant drained from a
recently run gear case will be a light chocolate
brown in color due to agitation/aeration. Oil
which is stabilized will be a clear yellow brown in
color.
b
a
51871
a - “Fill” Screw
b - “Vent” Screw
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