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Removal
1. Flush pump (17).
2.
Relieve pressure; page 4.
3. Fig. 16. Cycle pump with piston rod (A) in its
lowest position.
4. Fig. 16. Remove suction tube (101) and hose
(109).
109
Fig. 16
5. Fig. 17. Use screwdriver: push retaining spring up
and push out pin (44).
45
Fig. 17
6. Fig. 18. Loosen locknut with a wrench. Unscrew
pump.
Fig. 18
Repair
See manual 307806 for pump repair instructions.
Installation
WARNING
If pin (44) works loose, parts could break off due to
force of pumping action. Parts could project
through the air and result in serious injury or prop-
erty damage. Make sure pin (44) and retaining
spring (45) are properly installed.
Displacement Pump
A
17
101
ti3594a
44
ti3594a
ti3594a
CAUTION
If the pump locknut loosens during operation, the
threads of the bearing housing will be damaged.
Make sure locknut is properly tightened.
1. Fig. 19. Pull piston rod out 1.5 in. Screw in pump
until holes in connecting rod and piston rod align.
Fig. 19
2. Fig. 17. Push pin (44) into hole. And push retaining
spring (45) into groove all the way around connect-
ing rod.
3. Fig. 20. Screw locknut down onto pump until nut
stops. Screw pump up into bearing housing until it
is stopped by locknut. Back off pump and locknut
to align pump outlet to best position of hose to
filter housing. Tighten locknut by hand, then tighten
with a wrench to approximately 75 + 5 ft–lb (102
Nm).
Fig. 20
4. Fig. 21. Fill packing nut with Graco TSL until fluid
flows onto the top of seal.
Fig. 21
1.5 in.
ti3594a
ti3594a
ti3594a
15
309654
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