Instruction manual

8
9
DEFECTS CAUSE CORRECTION
Coarse spray Low pressure Increase the pressure
Excessive fogging
(overspray)
High pressure
Material too thin
Reduce the pressure to satisfactory pattern distribution
Use less thinner
Patten too wide Spray angle too large Use smaller spray angle tip
Pattern too narrow Spray angle too small Use wider spray angle tip
Too much material Nozzle too large
Material too thin
Pressure too high
Use smaller orice
Reduce pressure
Too little material Nozzle too small Use next larger orice
Material too thick
Thin distribution in center of pattern
“horns”
Worn tip
Wrong tip
Change to new tip
Use nozzle with narrow spray angle
Thick skin on work Material too viscous
Application too heavy
Thin cautiously
Reduce pressure and/or use tip in next smaller nozzle group
Coating fails to close & smooth over Material too viscous Thin cautiously
Spray pattern irregular, deected Orice clogged
Tip damaged
Clean carefully
Replace with new tip
Clogged screens Extraneous material in paint
Course pigments
Clean screen
Use coarse screen
Excess paint builds on tip guard Spray gun too close to surface
Pressure setting too high
Hold gun further from surface sprayed
Reduce pressure setting
Drips, spits from tip Valve seat and/or ball in gun head damaged
or worn
Service spray gun, replace valve assembly
Tip clogs continually Debris in paint
Gun lter missing
Coarse lter mesh
Thouroughly strain the paint before use
Do not operate without inlet strainer
TROUBLESHOOTING & REPAIRS
IMPORTANT NOTE: Whenever working on Airless Equipment, be sure to follow the Pressure Relief Procedure
found in your manual. If the gun is attached to a sprayer, engage the gun trigger lock (which may be called the
gun safety latch). The gun trigger lock should always be set when the gun is not being triggered.
!
REPLACING THE VALVE SPRING UNIT
DISMANTLING:
1. Unscrew REV-GUARD™ and remove spray tip & seal.
2. Pulling the trigger, unscrew the Valve Seat using a 5/8”
socket wrench.
3. Unscrew the retainer nut, remove the retainer and
retainer pins then push the shaft of the valve spring unit
out of the gun head.
4. Clean the Gun Head bore with solvent and a small brush.
Do not use any sharp objects to scrape away dried paint;
doing so may cause damage to the gun head, causing a
leak around the seal.
REASSEMBLING:
1. Apply grease to the O-Ring then push valve spring unit
rmly into gun head by hand.
2. Reinstall the retainer pins, retainer, and the retainer nut
on valve spring unit, tighten the nut until one thread is
showing out of the back of the nut.
REMOVING THE FILTER
1. Push up on the trigger guard, unlocking it from the
swivel, then pull away from the gun handle.
2. Grasp the handle of the gun, then turn counter clockwise
to loosen from the gun head.
3. Remove the lter from the gun handle and clean or
replace as necessary.
4. Re-insert the lter into the gun handle (it will only t in
the proper direction).
5. Re-thread the handle into the gun head until you come to
a positive stop. It should be hand tightened only.
3. Pull the trigger and install the valve seat by hand until
you feel a positive stop.
4. With the trigger locked, and using a feeler gauge (feeler
gauge must be placed between the retainer and gun
body), tighten the retainer nut so that you have .020”
spacing between retainer and gun body.
5. Unlock and depress the trigger, then torque the valve
seat to 30 ft. pounds.