Mercury 40 Service Manual page 315

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
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.
5D-32 - MID-SECTION
10. Remove inner o-ring from shock rod piston.
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.
51146
b
a
a - Rod Wiper
b - Inner O-ring
c - Outer O-ring
51146
b
51199
c
b
51145
90-852572R1 JANUARY 1998