308685 35
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.
Removing the pump (See Fig. 26.)
1. Flush the pump, if possible. Relieve pressure. Stop
the pump with the piston rod (107) in its lowest
position, if possible.
2. Remove suction tube (39) and adapter (47).
(See Suction Tube, page 25).
3. Use a screwdriver to push the retaining spring (12)
up and push out the pin (11).
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.
118
1
2
Torque to
50 ft–lb (68 N.m)
Apply sealant
119
121
122
120
11
12
17
1
9
107
120
18
Fig. 26
06933B
Pump part number
3
3
3
3
3
3
3
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