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Replacing the Ball Holder and
Diffuser
Use the following procedure to replace the
ball holder and diffuser on the spray gun.
Never attempt to perform maintenance on
the spray gun without first performing the
"Pressure Relief Procedure."
1. Disconnect the airless spray hose from
the gun.
2. Remove the tip guard, tip swivel, and pole
mount from the gun.
3. Place one wrench on the gun head fitting
and another wrench on the rear fitting
of the extension pole. Turn the entire
extension pole to unthread it from the
gun head fitting.
Do not try to remove either of the
fittings on the extension pole.
Movement of these fittings will
break the factory seal and cause
Attention
the gun to leak.
4. Carefully remove the entire extension
pole to expose the shaft and ball holder.
Make sure to the support the shaft during
removal of the extension pole.
5. Place a locking
pliers on the
shaft as close
as possible to
the ball holder.
While holding
the shaft in place with the locking pliers,
unthread the ball holder from the shaft
using a wrench.
6. Apply removeable Loctite to the threads
of the shaft and thread the new ball
holder onto the shaft until it stops at the
angled shoulder of the shaft. Do not
apply excessive force on the shaft or ball
holder.
7. Place one
wrench on
the wrench
flats of the
diffuser and
another
wrench on
the front
fitting of the extension pole. Unthread
the diffuser from the extension pole.
Make sure the fitting on the extension
pole does not move during removal of
the diffuser.
8. Thread the new diffuser into the front
fitting of the extension pole. Make sure
to hold the fitting on the extension pole
with a wrench. Torque the diffuser to 40-
50 ft./lbs.
9. Inspect the o-ring on the gun head fitting
and replace if necessary.
10. Lubricate the o-ring on the gun head
fitting and reassemble the extension pole
to the gun head fitting. Trigger the gun
18
GB
Shaft
Ball
Holder
Extension Pole
Front Fitting
Di user
before final tightening of the extension
pole to prevent damage to the ball
holder.
11. Test the operation of the trigger. There
should be a small amount of play in
the trigger after the trigger is released.
This will ensure that the ball holder is
fully seated in the diffuser and the gun
is shut off when the trigger is released.
Adjust the position of the lock nut on
the seal assembly if trigger adjustment is
necessary.
12. Start the sprayer and pressurize the gun
(refer to the instructions in the sprayer's
Owner's Manual). Check the gun for
leaks.
13. Move the trigger lock to the locked
position. Pull the trigger and check for
leaks.
Replacing/Removing the 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. Place the handle seal into the gun head
with the flat side of the seal toward the
gun head.
Flat side of
handle seal
(toward gun head)
6. Thread the handle assembly into the gun
head until secure.
7. Snap the trigger guard back onto the
handle assembly.
Filter Chart
Part
Application
Number
0034383
Synthetic resin,
enamels, clean
varnishes, stains,
azures
0043235
Base coat enamels,
primer enamels,
fillers, marking paints,
textured enamels
0034377
Emulsions, latex
paints, acrylic paints
0089323
Filler paints, large area
surfaces
Bevelled side of
handle seal
(toward handle)
Filter
Filter
Type
Color
Extrafine
Red
Fine
Yellow
Medium
White
Coarse
Green
Pole Gun
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