Repair
26
3A3101F
Reconnect Fluid Cylinder
1.
Carefully guide the fluid plunger (5) into the packing
nut (16) and through the packing (15) as the threads
on the fluid cylinder (13) are brought closer to the air
motor housing (1).
2.
Tighten fluid cylinder (13) to 30 ft-lbs (40 N•m).
3.
Tighten the packing nut (16) to a torque of 15 in-lbs
(1.7 N•m), then loosen and tighten again it to a final
torque of 5 in-lbs (0.6 N•m).
NOTE:
If a torque wrench is not present in the field, an
alternative method is to tighten the packing nut (16) fin-
ger tight through the window, then use a small punch or
hex wrench to further tighten by approximately 10
degrees.
NOTE:
If the packing nut (16) is over-tightened, the
pump may not complete a full stroke and seal life will be
compromised.
F
IG
. 10 Reconnect fluid cylinder
13
16
5
1
1
2
F
IG
. 11 Tighten packing nut
16
