Power Steering Fluid - Mercury MerCruiser Service Manual

Tube Ref No.
Power Trim and Steering
114
Fluid
5. Install the cap and dipstick. Tighten the cap securely.
Without sufficient cooling water, the engine, the water pump, and other components will overheat and suffer damage. Provide
a sufficient supply of water to the water inlets during operation.
6. Start the engine and operate it at fast idle (1000–1500 RPM) until it reaches normal operating temperature. During this
time, turn the steering wheel fully back and forth several times.
7. Using the steering wheel, position the sterndrive so that it is pointed straight ahead.
8. Stop the engine.
9. Remove the cap and dipstick from the reservoir.
10. Allow any foam in the pump reservoir to disperse.
IMPORTANT: The sterndrive must be in the straight ahead position and steering fluid must be hot for an accurate reading
of the fluid level.
11. Check the fluid level and add fluid as required to bring the level up to the "FULL HOT" mark on the dipstick. Do not overfill.
12. Reinstall the cap and dipstick. Tighten the cap securely.
13. If the fluid is still foamy, repeat steps 6 through 12 until the fluid does not foam and the level remains constant.

Power Steering Fluid

Checking
1. Stop the engine and center the sterndrive unit.
2. Remove the fill cap/dipstick and observe the level.
a
a. The proper fluid level with the engine at normal operating temperature should be within the warm range.
b. The proper fluid level with the engine cold should be within the cold range.
IMPORTANT: If fluid is not visible in the reservoir, contact your authorized Mercury MerCruiser dealer.
90-8M0099748 eng DECEMBER 2015
Description
a - Fill cap/dipstick
54971
b
a
a -
b -
54972
Power-Assisted Steering Pump and Related Components
Where Used
Power-assisted steering system
NOTICE
Warm range
Cold range
© 2016 Mercury Marine
Part No.
92-858074K01
Page 8A-17