Power Steering Description; Control Valve - Mercury BRAVO Service Manual

SERVICE MANUAL NUMBER 28
Description
The Power Steering system utilizes an engine-driven, vane-type hydraulic pump that sup-
plies fluid flow and pressure by means of hoses to a control valve that, in turn, controls fluid
flow and pressure to-and-from a booster cylinder. Three modes make up the basic function
of the Power Steering system: 1) neutral mode, 2) left turn mode, and 3) right turn mode.
The control valve, which is activated by the steering cable, controls the steering system
modes.
NOTE: The following Power Steering unit installations are viewed from inside boat, looking
at transom.

Control Valve

The control valve is not serviceable and must be replaced as a complete assembly.
90-863160 MAY 2000
POWER STEERING
73898
Page 6A-3