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.
20. Remove the piston insertion tool from the top of the piston
rod.
21. Lubricate the threads on the upper housing with anti-seize
compound. Remove the upper housing from the vise.
22. Insert the piston rod into the extension slider. When the
connecting pin hole on the piston rod lines up with the
hole in the extension slider, insert the connecting pin.
23. Thread the upper housing into the cylinder, turning
clockwise.
24. Continue to turn the upper housing clockwise until it is
flush against the cylinder.
25. Making sure that the Viton o-ring and Teflon 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 flats with one wrench and tighten
the lower housing with the other.
26. Attach the high-pressure hose to the fitting on the upper
housing and tighten with a wrench. Do not kink the hose.
27. Making sure that the Viton o-ring and Teflon back-up ring
are lubricated and in place, reassemble the foot valve
assembly and and thread it into the lower housing.
Tighten securely.
28. Replace the return hose into the clamp on the siphon tube.
29. Place the front cover on the gearbox housing and secure
in position using the four front cover screws.
30. Turn on the sprayer by following the procedure in the
“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.
NOTE: If the fitting on the upper housing does not
face the tool box side of the unit, turn the
upper housing counterclockwise until the
nipple faces the tool box side of the unit. Do
not turn the upper housing more than one full
turn counterclockwise.
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.
Install lower packing with
the side that has the o-ring
closest to the face of the
packing facing up.
Closer
Top
Replacing the Filters
Gun Filter
1. Pull the bottom of the trigger guard forward so that it
comes loose from the handle assembly.
2. Loosen and remove the handle assembly from the gun
head.
3. Pull the old filter out of the gun head.
4. Slide the new filter, tapered end first, into the gun head.
5. Make sure all the parts are clean and the handle seal is in
position inside the gun head.
6. Thread the handle assembly into the gun head until
secure.
7. Snap the trigger guard back onto the handle assembly.
Pump Filter (accessory for paint spraying)
1. Loosen and remove the filter
body by hand.
2. Slip the filter off of the core
spring.
3. Inspect the filter. Based on
inspection, clean or replace
the filter.
4. Inspect the o-ring. Based on
inspection, clean or replace
the o-ring.
5. Slide the new or cleaned
filter over the core spring with
the filter spring adapter in
place. Push the filter into the
center of the filter housing.
6. Slide the filter body over the
filter and thread it into the
filter housing until secure.
NOTE: The filter body
should be hand-
tightened, but make
sure it is seated
fully into the filter
housing.
Filter Body
Filter Spring
Filter Spring
Adapter
Core Spring
Filter
O-ring
Filter Housing
NOTE: For more detail, part number information, and
complete assembly drawings, refer to the S-3
Airless Spray Gun Owner's Manual (P/N 313-
2440).
Handle
Handle
Seal
Trigger
Guard
Filter
Gun
Head
© Titan Tool Inc. All rights reserved.
13
