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NOTE: coat the piston guide tool and the piston rod with
grease before inserting them into the pump block.
17. Place the piston insertion tool (included in the repacking kit)
over the top of the piston rod.
18. Insert the piston rod into the bottom of the pump block,
through the lower packing, through the upper packing, and
out through the retainer nut. Using a rubber mallet, tap the
bottom of the piston rod lightly until the piston rod is in
position in the pump block.
NOTE: When repacking the fluid section, make sure the
raised lip on the bottom of the lower packing is fully
outside the packing around the piston rod after
insertion of the piston rod.
19. Remove the piston insertion tool from the top of the piston
rod.
20. Using a wrench, tighten the retainer nut into the pump block.
Torque to 300-360 in. lbs.
21. Slide the top of the piston rod into the T-slot on the slider
assembly.
22. Position the pump block underneath the gear box housing
and push up until it rests against the gear box housing.
ImPORTANT: make sure the transducer is aligned properly
with the hole in the pump block during reassembly. Improper
alignment may cause damage to the transducer gasket.
23. Thread the pump block mounting screws through the pump
block and into the gear box housing. Torque to 400-440 in.
lbs.
24. Reassemble the inlet valve assembly into the pump block.
Apply blue Loctite (P/N 426-051) to male threads of inlet valve
housing and torque to 450-500 in-lbs.
NOTE: During reassembly, make sure the o-ring between
the pump block and inlet valve housing is
lubricated with grease and in position.
25. Reassemble suction set to fluid section. If swivel is removed
from the inlet valve housing, add blue Loctite (P/N 426-051) to
male threads. Replace the return hose into the clamp on the
siphon tube.
NOTE: When adjusting the orientation of the suction
tube, use two wrenches: one on the stationary hex
of the swivel and one on the movable hex of the
swivel. This will keep the inlet valve housing from
accidentally being loosened.
26. Thread the return hose into the pump block and tighten
securely.
27. Place the front cover on the gear box housing and secure in
position using the four front cover screws.
28. Turn on the sprayer by following the procedure in the
“Operation” section of this manual and check for leaks.
NOTE: Repacking kit 0555960 is available. For best results
use all parts supplied in this kit.
