6
Operating .Instructions
www.chpower.com
Troubleshooting Chart
Symptom
possible Cause(s)
Corrective action
Low .or .no .air .pressure
1 . . Regulator .set .incorrectly
1 . . Reset .regulator
2 . . Pinched .hose
2 . . Straighten .hose
3 . . Dirty .compressor .filter
3 . . Clean .or .replace .filter
Material .not .blasting .from .
gun
1 . . Clogged .material .hose
1 . . Lower .the .pressure .below .40 .psi . .Firmly .
hold .the .gun .tip .flat .against .the .ground .
and .pull .the .trigger .to .force .the .material .
back .out .of .the .material .hose
2 . . Buildup .around .jet
2 . . Remove .nozzle .and .clean .around .jet
3 . . Damp .or .heavy .material
3 . . Replace .with .dry .abrasive . .(Damp .material .
can .be .dried .and .reused)
4 . . Water .in .air .supply
4 . . Drain .air .tank .and .install .air .filter, .See .
“Moisture .in .Compressed .Air” .box
Gun .will .not .shut .off .- .trigger .
stuck
Damaged .o-rings .in .air .valve
Remove .and .replace .o-rings
Sputtering .- .low .vacuum
1 . . Worn .jet .and/or .nozzle
1 . . Replace .jet .and/or .nozzle
2 . . Abrasive .buildup .around .jet/nozzle
2 . . Remove .nozzle .and .jet .and .clean . .Make .
sure .the .threads .are .clean .before .re-
assembling
Sputtering .- .air/abrasive .leaks .
at .nozzle/jet .area
1 . . Loose .nozzle .or .jet
1 . . Tighten .nozzle .or .jet
2 . . Damaged .o-ring
2 . . Replace .o-ring
Sputtering .- .vacuum .leak
1 . . Loose .material .hose
1 . . Tighten .material .hose
2 . . Damaged .o-ring
2 . . Replace .o-ring
Sputtering .- .particle .clogging
Hose .connector .hole .is .covered
Uncover .hose .connector .hole
