Repair
3A0420H
33
Repair
Follow
Shutdown
, page 28, if service time may exceed
pot life time, before servicing fluid components, and
before transporting sprayer 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.
Cycle the yoke and pump rods near the bottom of
their stroke. Follow
Shutdown
, page 28.
2.
Disconnect all hoses from the pump assembly.
3.
If hoppers are installed, disconnect the hoppers
from the pump fluid inlet. See
Hoppers
, page 38.
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 28.
2.
If hoppers are installed, remove the hopper and
hopper bracket from the cart. See
Hoppers
, page
38.
3.
If feed pumps are installed, close the inlet ball valve.
Remove inlet union (61).
4.
Remove the spring clamp (130) and coupling (119
or 120).
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 50-60ft-lb (68-81 N•m).
To avoid serious injury due to the pump assembly
falling, secure a hoist to the lift ring.
130
119
118
117
108
106
105
135
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