The image represents the view from the inside of the boat looking at the transom
a - Piston
b - Control valve
c - Power steering fluid cooler
d - Pump
e - Relief valve (inside of the pump housing)
f - Pump housing
g - High pressure
h - Low pressure
Description
Control Valve
The control valve is not serviceable and must be replaced as a complete assembly.
10197
Axius Steering Cylinder Clearance
Provide 2.5 cm (1 in.) of clearance around and between the steering actuator and boat transom. This area must be free of
protruding hull structures, through‑the‑hull fittings, harnesses, cables, wires, or any other obstructions between the TVM and
transom to allow the steering cylinder a full range of motion.
Mercury recommends that only the shift cable be routed behind the steering cylinder. Vessel hoses and wiring routed behind
the steering cylinder hinders service of the cylinder and may become damaged over time.
IMPORTANT: Refer to Mercury MerCruiser Service Bulletin 2012‑09 for unique shift cable routing on all 8.2 ECT sterndrive
single catalyst exhaust manifold models.
Power-Assisted Steering Pump and Related Components
90-8M0099748 eng DECEMBER 2015 © 2016 Mercury Marine Page 8A-11
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