Repair
3A4096F
21
7. Install nut (37) over the end of the piston rod (34).
Use two wrenches, working in opposite directions
to tighten the nut. Secure one open end wrench to
flats of piston rod and use the second wrench to
tighten the nut as shown in F
. 30. Torque nut to
13 to 15 ft. lbs (17.6 to 20.3 N.m).
8. Apply a thin layer of grease to piston seal (4). Install
seal around piston (5) as shown in F
9. Install spring (6) over piston rod (34) and install
spring and piston rod in air cylinder (3).
10. Apply a thin layer of grease to the cover o-ring (2).
Install o-ring to cover (1) (F
. 34).
11. Install cover in bottom of air motor cylinder (3).
Apply pressure with your hand to help seat the
cover and compress the spring. Use a wrench on
nut (1a) to turn and tighten the cover securely then
torque to 28 to 32 ft. lbs. (37.9 to 43.4 N.m) F
F
IG
. 31
F
IG
. 32
34
37
5
4
5
F
IG
. 33
F
IG
. 34
5
6
3
2
1
3
1a
