Air Motor Repair
311882T 13
4. Align slot of shield (75) with piston hole and place
pin tool (69) in piston hole to prevent piston from
turning. Use second pin tool (69) to unscrew piston
cap (17) and separate from piston (21) to expose
dowel pin (19). See F
IG
. 13.
5. Remove dowel pin (19) and take piston cap (17) off
transfer shaft (20). Remove o-ring (50*) from piston
cap. Inspect all parts for damage. See F
IG
. 14.
6. Slide air piston (21) out the top of the air motor base
(23). Remove o-ring (24*) from air motor base.
Inspect all parts, including the spring (22) in the air
motor base, for damage. See F
IG
. 15.
F
IG
. 13
F
IG
. 14
WLD
21
69
69
17
75
WLD
19
*50
17
20
F
IG
. 15
WLD
21
22
23
*24