Troubleshooting; Spray Pattern Troubleshooting - Graco PRO 244572 Instructions-Parts List Manual

Troubleshooting

WARNING
Electric Shock Hazard
Installing and servicing this equipment
requires access to parts which may cause
an electric shock or other serious injury if
the work is not performed properly. Do not install or
service this equipment unless you are trained and
qualified.

Spray Pattern Troubleshooting

NOTE: Some spray pattern problems are caused by the improper balance between air and fluid.
Problem
Fluttering or spitting spray.
Irregular pattern.
Pattern pushed to one side; air cap
gets dirty.
Tails in pattern.
Fluid buildup on air cap/tip guard.
309295L
Skin Injection Hazard
NOTE: Check all possible remedies in the Troubleshoot-
ing Chart before disassembling the gun.
Cause
No fluid.
Air in fluid supply.
Fluid buildup; partially plugged tip.
Worn/damaged tip or air cap holes.
Air cap holes plugged.
Air pressure too low.
Fluid pressure too low.
Air pressure too high.
Fluid pressure too low.
WARNING
To reduce the risk of a fluid injection injury,
always follow the Pressure Relief Proce-
dure on page 24 whenever you are
instructed to relieve the pressure.
Solution
Refill supply.
Check fluid source. Refill.
Clean. See gun operation manual.
Clean or replace.
Clean. See gun operation manual.
Open atomizing air adjustment valve.
Increase.
Decrease.
Increase.
Troubleshooting
21