Mercury 300 - PRO MAX 3.0L User Manual page 66

1-3
Checking Power Trim Fluid (continued)
SPORT MASTER MODELS
1
Place outboard in the full down (in) position.
2
Remove trim pump fill/vent screw (a)
•
Wipe fill/vent screw with a clean, lint-free cloth and reinstall - DO
NOT THREAD INTO PUMP.
•
Remove fill/vent screw and note oil level. Oil level must be be-
tween the "ADD" (c) and "FULL" (b) marks on dipstick.
•
If necessary, add Mercury Precision Power Trim & Steering Fluid
(92-802880A1) or SAE 10W-30 or 10W-40 motor oil thru the fill/
vent screw hole to bring level up to the "FULL" mark on the dip-
stick. DO NOT OVERFILL.
3
To purge system of air, raise the outboard 2 or 3 times. Recheck
oil level and add oil if necessary.
4
Reinstall fill/vent screw by turning it all-the-way in, then back it
out one and a half (1-1/2) turns.
Fill/Vent screw MUST BE backed out one and a half (1-1/2)
turns (after bottoming out) to vent pump reservoir. FAILURE
TO BACK SCREW OUT COULD RESULT IN DAMAGE TO
PUMP.
MAINTENANCE
CAUTION
64
a
b
c
2-4