Product Manual

16 AirCoat
GB
Troubleshooting
7.3 Spray Patterns
Problem Cause Solution
A. Tails 1. Inadequate uid delivery 1. Fluid not atomizing correctly:
Increase uid pressure. Change to smaller tip orice
size. Reduce uid viscosity. Reduce hose length.
Clean gun and lter(s). Reduce number of guns using
pump.
 B. Hourglass 1. Inadequate uid delivery 1. Same as above.
C. Distorted 1. Plugged or worn tip 1. Clean or replace tip.
D. Pattern expanding and
contracting (surge)
1. Suction leak
2. Pulsating uid delivery
1. Inspect for suction hose leak.
2. Change to a smaller tip orice size. Install pulsation
dampener in system or drain existing one. Reduce
number of guns using pump. Remove restrictions in
system; clean tip screen if lter is used.
E. Round pattern. 1. Worn tip
2. Fluid too heavy for tip
1. Replace tip.
2. Increase pressure. Thin material. Change nozzle tip.
7.2 Air Motor
Problem Cause Solution
A. Motor stops at top or bottom
of stroke - air does not exhaust
when gun is open.
1. Piston rod is loose where it connects to the
uid section.
2. Trip springs or valve spring broken.
3. Motor is frozen due to icing or lack of
lubrication.
1. Tighten connection.
2. Inspect and replace where neessary.
 3. ChecktheAir-Care™uidlevelintheAutomatic
Lubricator.Iflow,addAir-Care™toreservoir.
If condition persists, check air supply for
contamination.
 B. Motorstops,blowsairfrom
exhaust when gun is open.
1. See above.
2. Air valve is in dead stall position.
3. O-rings were worn or damaged.
1. See above.
2. Remove one trip spring retainer, trip spring and ball.
Push spool valve up or down, lubricate, reassemble
and restart.
3. Install minor service kit and follow instructions in
Servicing section of manual.
If dust or dirt is found inside motor, check air supply for
contamination.