Tube Ref No. Description Where Used Part No.
114
Power Trim and Steering
Fluid
Power-assisted steering system 92-858074K01
5. Install the cap and dipstick. Tighten the cap securely.
NOTICE
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 (1000ā1500 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 - Fill cap/dipstick
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.
a - Warm range
b - Cold range
IMPORTANT: If fluid is not visible in the reservoir, contact your authorized Mercury MerCruiser dealer.
Power-Assisted Steering Pump and Related Components
90-8M0099748 eng DECEMBER 2015 Ā© 2016 Mercury Marine Page 8A-17