1. Remove the cotter pin and remove the front clevis pin.
2. Remove the cotter pin and remove the rear clevis pin.
3. Retract the steering cable into the cable guide tube.
a - Forward clevis pin
b - Rear clevis pin
c - Cotter pins
d - Steering cable end
e - Cable guide tube
4. Remove the high‑pressure hose at the control valve, and install the test gauge between the hose and the control valve.
a - Control valve
b - Pressure hose
c - Test gauge
d - Gauge‑to‑control‑valve hose
Power Steering Test Gauge Kit 91‑38053A05
5. Completely open the valve on the power steering test gauge.
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.
If the boat is out of the water, connect a flushing device to the sterndrive (refer to Section 1C). The cooling system is full
when water is discharged through the propeller.
Power-Assisted Steering Pump and Related Components
90-8M0099748 eng DECEMBER 2015 © 2016 Mercury Marine Page 8A-23