Mercury 40 Service Manual page 359

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 - 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.
90-852572R1 JANUARY 1998
51146
a
b
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10.
Remove inner O-ring.
a
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.
a
a - Rod Wiper
b - Inner O-ring
c - Outer O-ring
b
51199
51147
c
b
51145
MID-SECTION - 5F-21