Zf Marine Transmission Fluid; Check Fluid Level - Mercury MerCruiser Diesel Inboard 2.8L Operation & Maintenance Manual

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Section 4 - Maintenance
13. Push the filter element onto the top piece until it is locked. Listen for a click.
14. Install the top piece with the new filter element into the oil filter housing.
IMPORTANT: Overtightening the top piece will cause deformation resulting in oil leakage.
15. Turn the oil filter top piece until the sealing surface contacts the housing. Torque the top piece using an appropriate socket.
Description
Oil filter top piece
16. Remove the oil fill cap and refill the engine with new oil. See Filling.
IMPORTANT: When refilling the engine with oil, always use the dipstick to determine how much oil is required.
17. Start the engine and check for leaks.

ZF Marine Transmission Fluid

Check Fluid Level

1.
Remove the dipstick.
IMPORTANT: When checking the fluid level, rest the dipstick on top of the threaded housing hole. Do not screw the
dipstick into the threaded housing hole.
2.
Check the fluid level as indicated on the dipstick with the dipstick resting on the top of the threaded hole.
NOTE: The fluid level may be somewhat over the maximum mark, as some of the fluid from the transmission fluid cooler
and hoses may have drained back into the transmission.
3.
If the fluid level is below the minimum mark on the dipstick, add transmission fluid. Refer to Add Fluid.
IMPORTANT: To accurately check the fluid level, operate the engine at 1500 RPM for two minutes immediately before
checking the level.
4.
Start the engine and operate at 1500 RPM for two minutes to fill all the hydraulic circuits.
5.
Stop the engine and quickly check the fluid level with the dipstick resting on the top of the threaded hole.
6.
If the fluid level is low, add transmission fluid to bring the level up to the maximum mark on the dipstick. Refer to Add
Fluid.
Page 38
a
b
23195
a -
Dipstick
b -
Threaded hole
c -
Maximum fluid level
d -
Minimum fluid level
16604
a -
Top piece
b -
Oil filter housing
Nm
25
90-8M0133679
lb‑in.
lb‑ft
18
JUNE 2017
eng

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Mercruiser diesel inboard 4.2l

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