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Mercury 45 Jet 50-55 - Hydraulic System Troubleshooting

Mercury 45 Jet 50-55
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5G-16 - MID-SECTION 90-817643R1 DECEMBER 1996
Hydraulic System
Troubleshooting
Refer to disassembly/reassembly instructions (fol-
lowing) if disassembly is required when servicing.
IMPORTANT: After debris or failed components
have been found (during troubleshooting proce-
dure), it is recommended that unit be disas-
sembled completely and ALL O-rings be re-
placed. Check ball components and castings
must be cleaned using engine cleaner and com-
pressed air or replaced prior to reassembly.
Support outboard with tilt lock lever when servicing
manual tilt system.
1. Check manual release cam adjustment. Cam
must open and close freely. Adjust cam link rod as
necessary.
51143
a
c
b
a - Link Rod
b - Manual Release Lever
c - Accumulator
2. Check for external leaks in the manual tilt system.
Replace defective part(s) if leak is found.
IMPORTANT: If cut or damaged O-rings are found,
inspect machined surfaces for scoring, burrs or
debris.
3. Check for discharged accumulator. 35 to 50 lb. ft.
(47-68 N·m) of pulling force must be attained
when tilting outboard from full “down” to full“up”
position. If more than 50 lb. ft. (68 N·m) of force is
required, replace accumulator.
50431
a
b
a - Weight Scale
b - Valve Lever (open position)

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