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Displacement Pump Repair
WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 17.
NOTE: Packing Repair Kit 235703 is available. Refer-
ence numbers of parts included in the kit are marked
with an asterisk, i.e., (121*). For the best results, use
all the new parts in the kit, even if the old ones still look
good.
NOTE: To minimize down time, and for the best sprayer
performance, clean the transducer (see page 25) when-
ever you repack the pump. Replace these parts as need-
ed.
9
Fig. 26
Removing the pump
1. Flush the pump, if possible. Relieve pressure. Stop
2. Remove suction tube (39) and adapter (47).
3. Use a screwdriver to push the retaining spring (12)
4. Loosen the screws (17). Remove the pump (18).
Repairing the pump
Refer to Displacement Pump Manual 308190, sup-
plied, for pump parts and repair information.
120
12
3
107
1
17
the pump with the piston rod (107) in its lowest
position, if possible.
(See Suction Tube, page 25).
up and push out the pin (11).
11
122
18
121
119
118
3
Torque to
1
50 ft–lb (68 N.m)
2
Apply sealant
3
Pump part number
(See Fig. 26.)
120
3
3
3
3
06933B
308685
35
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