Down Pressure Relief Valve Replacement - Mercury BRAVO Service Manual

SERVICE MANUAL NUMBER 28

DOWN Pressure Relief Valve Replacement

NOTE: The DOWN pressure relief valve in the kit is color coded GREEN for easy identifica-
tion.
IMPORTANT: A difference exists between the factory installed and the replacement
pressure relief valves. Once the jam nut is loosened on a factory installed relief valve,
the valve is out of adjustment.
IMPORTANT: When installing a replacement pressure relief valve, do NOT loosen or
attempt to remove the hex jam nut. This valve is preset at the factory for proper DOWN
pressure relief.
1. Loosen jam nut on DOWN pressure relief valve and remove valve.
2. Remove the pump body components and discard.
3. Ensure that the threaded hole is free of dirt.
4. Lubricate the O-ring at the base of the new valve with Power Trim and Steering Fluid
5. Tighten at the base of the new valve. Torque to 70 lb-in. (7.9 Nm).
90-863160 MAY 2000
and install valve.
d
a - Factory Installed DOWN Pressure Relief Valve
b - Replacement DOWN Pressure Relief Valve (GREEN)
c - Jam Nut
d - Pump Body Components (Spring, Eyelet And Check Ball)
e - Jam Nut
f - O-ring
a
a
c
70872
50396
OILDYNE TRIM PUMP
b
e
f
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