308155 13
Service
Disconnecting the Reciprocator and
Displacement Pump
Models 239882, 224741, and 224742
1. Flush the pump if possible, and stop it with the
displacement rod in the lowest position.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 9.
2. Relieve the pressure.
3. Disconnect the outlet hose from the displacement
pump.
4. Slowly loosen the hydraulic supply (58) and return
(5) fittings to relieve any pressure, and remove the
hoses. Install plugs on the tube fittings and in the
hose ends. Check the o-rings (5a, 58a) on the
fittings, and replace them if they are worn or
damaged. See Fig. 4 and the Parts Drawing.
5. Using a strap wrench on the displacement cylinder
(108), screw it out of the pump adapter (43), and
pull it off the pump.
6. Pull the connecting rod (117) down as far as it will
go. Remove the cotter pin (118) from the bottom of
the displacement rod assembly (34), and unscrew
the connecting rod until it is free.
Model 237653
1. Flush the pump if possible, and stop it with the
displacement rod in the lowest position.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 9.
2. Relieve the pressure.
3. If you remove the pump from its mounting,
disconnect the hydraulic hoses, and plug all
hydraulic connections and lines to prevent
contamination.
4. Remove the cotter pin (A) from the top of the
displacement rod (B).
5. Loosen and remove the three locknuts (C), and
pull the displacement pump down and away from
the motor.
6. Unscrew the displacement rod (B) from the
reciprocator connecting rod (D).
Fig. 6
01662
43
36,37
33
32
117
103
118
108
46 (hidden from view)
34
06143B
Models 239882, 224741, and 224742
Model 237653
03834
A
B
C
D
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