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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 the gun to leak.
Attention
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 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 back of the trigger guard down so that it comes loose from the swivel assembly on the
handle.
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.
6.
Thread the handle assembly into the gun head until
secure.
7.
Snap the trigger guard back onto the handle
assembly.
18
GB
Flat side of
handle seal
(toward gun head)
Shaft
Ball
Holder
Extension Pole
Front Fitting
Diffuser
Bevelled side of
handle seal
(toward handle)
Pole Gun
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