Table of Contents
Advertisement
NOTE: During reassembly, make sure the Viton o-rings
and the PTFE back-up rings between the upper
housing and lower housing as well as between
the lower housing and the foot valve housing
are lubricated with grease and in position.
Repacking the Fluid Section
NOTE: The factory-installed packings are black in
color. The replacement packings in the
packing replacement kit are white.
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. Slide the retaining ring up on
the slider assembly to expose
the connecting pin.
3. Push the connecting pin
forward through the slider
assembly and piston. The
connecting pin will fall into a
recessed area of the gear box
housing where it can be
retrieved.
4. Tap the knock-off nut with a
soft hammer so that it turns
counterclockwise and loosens.
5. Turn the fluid section
counterclockwise to remove it
from the gear box housing.
6. Place the upper housing
upright in a vise by clamping
on the wrench flats.
NOTE: Do not over-tighen
the vise. Damage to
the upper housing
may occur.
7. Using a wrench, remove the
upper seal retainer.
8. Slide the piston rod out through
the bottom of the upper
housing.
9. Inspect the piston rod for wear
and replace if necessary.
10. 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.
11. Clean the upper housing. Inspect the upper housing for
damage and replace if necessary.
12. 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.
13. Insert the upper packing into the
top of the upper housing with
the raised lip on the packing
facing down.
14. Insert the spacer on top of the
upper packing.
15. Thread the upper seal retainer
into the upper housing and
torque to 25-30 ft. lbs.
© Titan Tool Inc. All rights reserved.
16. Pre-form the lower packing using
17. Insert the lower packing partially
18. Push the lower packing into
19. Place the piston insertion tool (included in the repacking
Crankshaft
20. Insert the piston rod into the bottom of the upper housing,
Slider
Assembly
Connecting
Pin
Retaining
Ring
21. Remove the piston insertion tool from the top of the piston
Knock-Off
Nut
22. Turn the knock-off nut counterclockwise until it is flush
Upper Seal
Retainer
23. Lubricate the threads on the upper housing with anti-seize
Spacer
24. Thread the upper housing into the gear box housing,
Upper
Packing
25. Slide the retaining ring down over the connecting pin.
26. Continue to turn the upper housing clockwise until the
Upper
Housing
Lower
Packing
27. Once the nipple is positioned, turn the knock-off nut
Wear Ring
28. Tap the knock-off nut with a soft hammer to tighten it
29. Making sure that the Viton o-ring and PTFE back-up ring
Piston Rod
30. Attach the high-pressure hose to the nipple on the back of
31. Making sure that the Viton o-ring and PTFE back-up ring
32. Thread the siphon tube/siphon set into the foot valve and
Install upper packing
33. Replace the return hose into the clamp on the siphon tube.
with raised lip
facing down.
34. Place the front cover on the gearbox housing and secure
35. Turn on the sprayer by following the procedure in the
Raised Lip
11
the lower packing sizing tool
(included in the repacking kit).
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.
position using the lower packing
insertion tool (see Fluid Section
Assembly parts list for lower packing insertion tool P/N).
kit) over the top of the piston rod.
through the lower packing, through the upper packing, and
out through the upper seal retainer.
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.
rod.
against the upper housing.
compound. Remove the upper housing from the vise.
turning clockwise. When the connecting pin hole on the
piston rod lines up with the hole in the slider assembly,
insert the connecting pin.
knock-off nut is flush against the gear box housing.
NOTE: If the nipple on the upper housing does not
face the back of the unit, turn the upper
housing counterclockwise until the nipple
faces the back of the unit. Do not turn the
upper housing more than one full turn.
clockwise until it contacts the gear box housing.
against the gear box housing.
are lubricated and in place, thread the lower housing into
the upper housing. Using two wrenches, hold the upper
housing at the wrench flats with one wrench and tighten
the lower housing with the other.
the housing and tighten with a wrench. Do not kink the hose.
NOTE: For low rider units, 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.
are lubricated and in place, reassemble the foot valve
assembly and and thread it into the lower housing.
Tighten securely.
tighten securely. Make sure to wrap the threads on the down
tube/siphon hose adapter with PTFE tape before assembly.
in position using the four front cover screws.
"Operation" section of this manual and check for leaks.
NOTE: Repacking kit P/N 800-273 is available. For
best results use all parts supplied in this kit.
Install lower packing with
the side that has the o-ring
closest to the face of the
packing facing up.
Closer
Top
Advertisement
Table of Contents
