Repair
3A3169E
15
15. Use a 3/8 inch socket to remove the 4 bolts (33)
holding the air cylinder (2) to the pump base (1)
(F
. 20). Remove air cylinder from the pump base.
16. Piston Rod (13) and Piston (6)
a.
Pull piston rod (13) and piston (6) out of air cyl-
inder (2) (F
. 22).
b.
To separate piston rod (13) and piston (6) use
two wrenches, working in opposite directions.
Secure one open end wrench to flats of piston
rod and the second wrench is used to loosen
the nut (5) as shown in F
NOTE:
The open end wrench secured to the
flats of the piston rod is only used to hold the
rod securely, do
not
rotate this wrench. Moving
this wrench could scratch or damage the sur-
face of the piston and cause fluid leaks during
the pump operation. Only move the wrench
holding the nut (5) to loosen and remove the
nut.
c.
Remove o-ring (41) from the piston rod (13)
F
IG
. 20
F
IG
. 21
33
2
1
33
13
6
2
F
IG
. 22
F
IG
. 23
13
5
6
41
13
