3. Remove the fill cap/dipstick from the power‑assisted steering pump and note the fluid level.
a - Fill cap/dipstick
4. The fluid level with the engine at normal operating temperature should be within the warm range on the dipstick.
a - Warm range
b - Cold range
5. Proper fluid level with the engine cold should be within the cold range. Do not overfill.
Tube Ref No.
Description Where Used Part No.
114
Power Trim and Steering
Fluid
Power-assisted steering system 92-858074K01
6. If fluid is not visible in the reservoir, a leak exists in the power‑assisted steering system. Find the cause and correct.
Filling and Bleeding
IMPORTANT: The power‑assisted steering system must be filled exactly as explained to ensure that all air is bled from the
system. All air must be removed or fluid in the pump may foam during operation and be discharged from the pump reservoir.
Foamy fluid may also cause the power‑assisted steering system to become spongy, which may result in poor boat control.
1. With the engine stopped, center the sterndrive.
2. Remove the fill cap/dipstick from the power‑assisted steering pump.
IMPORTANT: Use only specified fluid in the power‑assisted steering system.
3. Add the specified fluid, as required, to bring the level up to the appropriate mark on the dipstick depending on the fluid
temperature.
Tube Ref No.
Description Where Used Part No.
114
Power Trim and Steering
Fluid
Power-assisted steering system 92-858074K01
4. Turn the steering wheel back and forth to the end of travel in each direction several times.
5. Recheck the fluid level and add fluid, if necessary.
6. Install the fill cap/dipstick. Tighten securely.
Maintenance
Page 1C-20 © 2016 Mercury Marine 90-8M0099748 eng DECEMBER 2015
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