Repair; Pump Assembly - Graco XP35 Instructions Manual

Repair

Repair
To avoid serious injury due to the pump assembly
falling, secure a hoist to the lift ring.
Follow Shutdown procedure on page 33, which
includes flushing, if service time may exceed pot life
time, before servicing fluid components, and before
transporting system to a service area.

Pump Assembly

The displacement pumps and air motor may be
removed and serviced separately or the entire pump
and motor assembly can be removed with a hoist.
Remove Pump Assembly
1. Stop the pumps near the bottom of their stroke. Fol-
low Shutdown, page 33.
2. Disconnect all hoses from the pump assembly.
3. If hoppers are installed, disconnect the hopper fluid
lines from the pump fluid inlet. See Hoppers, page
43.
NOTE: The hopper and hopper bracket do not need
to be removed from the cart.
4. Remove screws (6) and washers (5) under the tie
plate (101).
5. Use hoist to remove the pump assembly by the lift
ring and carefully lift out of cart (1).
Remove Displacement Pump
1. Follow Shutdown, page 33.
2. If hoppers are installed, remove the hopper and
hopper bracket from the cart. See Hoppers, page
43.
3. If feed pumps are installed, close the inlet ball valve.
Remove inlet union (61).
38
4. Remove the spring clamp (130) and coupling (119
or 120).
135
117
108
5. Use a wrench to hold the tie rod (105, 106) flats to
keep the rods from turning. Unscrew the nuts (108)
from the tie rods and carefully remove the displace-
ment pump (117 or 118) and lower straps (135).
6. Refer to the Xtreme Displacement Pump manual to
service or repair the displacement pump.
7. Follow the steps in reverse order to reinstall the dis-
placement pump.
NOTE: Torque nuts (108) to 50-60 ft-lb (68-81 N•m).
106
105
130
119
118
r_258914_3a0420a_5a
3A0420V