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Repair
Piston Rod-O-Ring (34a) and Piston Seal (4)
NOTE: Do not clamp the piston rod (34) in vise.
4. Use a clean cloth to wipe down the piston rod (34)
and the piston (5) to remove any dirt or contami-
nants. Inspect surfaces for any scratches or dam-
age. Replace damaged parts.
5. Apply a thin layer of grease to the o-ring (34a).
Install the o-ring over the grooves of the piston rod
(34) (F
. 30).
IG
NOTE: If needed, a pick can be used to seat the
o-ring over the grooves of the piston rod (13).
F
. 30
IG
6. Push the piston (5) over end of the piston rod (34)
until seated on the rod (F
NOTE: A pop sound occurs when placed correctly.
F
. 31
IG
20
34a
34
. 31).
IG
34
7. Install the nut (37) over the end of the piston rod
(34). Use two wrenches, working in opposite direc-
tions to tighten the nut. Secure one open end
wrench to flats of piston rod and use the second
wrench to tighten the nut. Torque nut to 13 to 15 ft.
lbs (17.6 to 20.3 N.m) (F
37
5
F
. 32
IG
8. Apply a thin layer of grease to the piston seal (4).
Install the seal around the piston (5) as shown in
F
. 33.
IG
5
4
F
. 33
IG
. 32).
IG
34
3A4033J
5
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