3
IMPORTANT:
Early style air piston assembly (items
54A and 55A) is no longer available.
If replacement is required, new style
air piston assembly (items 54B, 55B
and 56) must be used. Order Repair
Kit CK354950SR.
To replace an early style air piston assembly:
●
Remove early style style air piston (item 54A) and U-Cup seal (item 55A) from open
end of air motor (item 1). These parts will not be reused and can be discarded.
●
If not pre-installed, install O-Ring (item 56) and Glyd Ring (item 55B), into groove on
new style air piston (item 54B).
●
Apply grease to Glyd Ring (item 55B).
●
Install new style air piston assembly (items 54B, 55B and 56) through open end of
air motor (item 1).
54B
56
55B
Early Style Air Piston
54A
55A
NOTE:
Reservoir fill plug,
Item 32, should be HAND
TIGHTENED only. Do not
use a pliers or wrench.
Over-tightening will tear
the reservoir bladder. Oil
leaking out of the vent hole
located at the rear of the
reservoir is an indication of
a torn bladder.
NOTE:
Relief Valve, Item 2L, is factory set for
maximum pressure according to pump model.
DO NOT adjust to a higher pressure.
When setting the relief valve, it should only be
adjusted up to the desired pressure setting. To
adjust for a lower pressure than that set at the
factory, back off the adjusting screw and then
adjust up to the desired pressure.
WARNING:
To insure that the internal relief valve setting is correct,
check the model number when servicing the product. The setting may
require adjustment based on the pressure setting designated by the
dash code (-XXXX) of the model number.
NOTE:
Assemble ball guide, Item
2G, with outside chamfer facing
ball seat, Item 2D).
NOTE:
Closed end of spring, Item
2EE, must go toward the bottom
of the hole.
NOTE:
Torque Coupling V-Retainer,
Item 2N, to 30-40 in-lbs.
NOTE:
Torque Item 7, 23, and 24
to 25 ft-lbs.
NOTE:
Torque Item 6 to 75 ft-lbs.
Figure 1, PA133, 7001, PA135, PA136 Air Hydraulic Pump
Sectional View -
Assembly of items
55B and 56.
Sectional View
items 54B, 55B and 56.
See note below for
Item 2L.
Summary of Contents for QS-2000A
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