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© Titan Tool Inc. All rights reserved. 13
Repacking the Fluid Section
Slider
Assembly
Crankshaf
Upper Seal
Retainer
Spacer
Upper
Packing
Lower
Packing
Upper
Housing
Piston Rod
Wear Ring
1. Remove the foot valve assembly
and the lower housing using
the steps in the “Servicing the
Valves” procedure above.
NOTE: The outlet valve does not
need to be disassembled
from the piston rod for
this procedure.
2. High rider models - turn the
knob on the side of the cart
clockwise to unlock the cart. Tilt
the cart backwards until it locks
into place.
Low boy models - tilt the cart
backward until it is vertical.
3. Pull the lever on the underside
of the sprayer toward the front
of the sprayer. This will un-
clamp the entire uid section.
Slide the uid section forward
to remove it from the gear
housing.
4. Place the upper housing upright
in a vise by clamping on the
wrench ats.
NOTE: Do not over-tighten
the vise. Damage to
the upper housing may
occur.
5. Using a wrench, remove the
upper seal retainer.
6. Slide the piston rod forward
until the piston is out of the
T-slot on the slider assembly.
7. Pull the piston out through the
bottom of the upper housing.
8. Inspect the piston rod for wear
and replace if necessary.
9. Remove the upper and lower packings from the upper
housing.
NOTE: Be careful not to scratch, score, or otherwise
damage the upper housing during removal of the
packings.
10. Clean the upper housing. Inspect the upper housing for
damage and replace if necessary.
11. Locate the new upper and lower packings and pack the areas
between the packing lips with grease. Lubricate the o-rings
on the exterior of the packings with grease.
Install upper packing
with raised lip
facing down.
12. Insert the upper packing into the
top of the upper housing with the
raised lip on the packing facing
down.
13. Insert the spacer on top of the
upper packing.
14. Thread the upper seal retainer into
the upper housing and torque to
25-30 ft. lbs.
15. Pre-form the lower packing using the lower packing sizing
tool (included in the repacking kit).
Install lower packing with
the side that has the o-ring
closest to the face of the
packing facing up.
Closer
Top
16. Insert the lower packing partially
into the bottom of the upper
housing so that the side that has
the o-ring closest to the face of
the packing faces up.
17. Push the lower packing into
position using the lower packing
insertion tool (see Fluid Section
Assembly parts list for lower
packing insertion tool P/N).
18. Place the piston insertion tool
(included in the repacking kit) over the top of the piston rod.
19. Insert the piston rod into the bottom of the upper housing,
through the lower packing, through the upper packing, and
out through the upper seal retainer.
NOTE: When repacking the uid 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.
20. Remove the piston insertion tool from the top of the piston
rod.
21. Replace the upper housing back into the uid section clamp
on the gear housing. Make sure to slide the top of the piston
rod into the T-slot on the slider assembly.
22. Push the lever on the underside of the unit toward the rear of
the sprayer to lock the uid section back into place.
28. Making sure that the Viton o-ring and PTFE back-up ring are
lubricated and in place, thread the lower housing into the
upper housing. Using two wrenches, hold the upper housing
at the wrench ats with one wrench and tighten the lower
housing with the other.
29. Attach the high-pressure hose to the nipple on the back of the
housing and tighten with a wrench. Do not kink the hose.
NOTE: Make sure the hose does not touch the cart frame. If
it does, reposition the nipple by turning the upper
housing until the hose is clear of the frame and the
nipple is within 45º of the back of the unit.
30. Making sure that the Viton o-ring and PTFE back-up ring are
lubricated and in place, reassemble the foot valve assembly
and and thread it into the lower housing. Tighten securely.
31. Thread the siphon tube/siphon set into the foot valve and
tighten securely. Make sure to wrap the threads on the down
tube/siphon tube adapter with PTFE tape before assembly.
32. Replace the return hose into the clamp on the siphon tube.
33. Place the front cover on the gearbox housing and secure in
position using the four front cover screws.
34. Turn on the sprayer by following the procedure in the
“Operation” section of this manual and check for leaks.
NOTE: Repacking kit P/N 0558740 is available. For best
results use all parts supplied in this kit.
