Mercury 75 Service Manual

90-830234R3 DECEMBER 1997 MID-SECTION - 5E-21
CAUTION
When removing shock piston, spanner wrench
must have 1/4 in. x 5/16 in. long pegs to avoid
damage to shock piston.
5. Place shock rod into soft jawed vise and apply
heat to loosen piston using torch lamp (P/N
91-63209).
6. Loosen shock rod piston using spanner wrench
[1/4 in. x 5/16 in. (6.4mm x 8mm) long pegs].
7. Allow shock rod piston to cool. Remove from
shock rod.
a
b
51146
51146
a - Spanner Wrench
b - Shock Rod Piston
8. Inspect check valve for debris; clean debris from
check valve if found. If debris cannot be cleaned
from check valve, replace shock piston as an as-
sembly.
9. Clean shock and components with compressed
air.
10. Remove inner O-ring.
a
b
51199
a - Shock Piston
b - O-ring
11. Remove cylinder end cap assembly from shock
rod.
12. Inspect shock. If wiper (located in cap) has failed
to keep rod clean, replace wiper.
13. Place end cap on clean work surface.
14. Remove rod wiper, inner O-ring, and outer
O-ring.
b
c
a
51147
51145
a - Rod Wiper
b - Inner O-ring
c - Outer O-ring

Mercury 75 Specifications

General

Horsepower	75 hp
Starting	Electric
Cylinders	3
Warranty	3 years
Shaft Length	20 in. or 25 in.