User's Manual

Troubleshooting
26 3A0232R
Gun does not fully
actuate when trig-
gered
Trigger clamp not opening properly Perform Adjust Trigger Clamp procedure on
page 29
Safety lock engaged Disengage safety lock
Trigger clamp pins bent Inspect and replace if necessary
Cutter air valve stuck Inspect and replace if necessary
Overspray on trigger clamp pins Clean and lubricate
Needle assembly stuck Check and adjust needle packing tension,
see Adjust Needle Packing Tension on
page 30
Hardened material in the needle/seat area Remove needle assembly, clean and replace if
necessary
Fluid does not spray
when trigger is fully
actuated
Proportioner off or in bypass mode Turn on proportioner and make ready to spray
Worn trigger clamp pins Inspect and replace if necessary
Worn trigger Inspect and replace if necessary
Loose trigger clamp assembly Inspect and torque as specified, see Adjust
Trigger Clamp on page 29
Misadjusted or missing actuator pin adjust-
ment screws
If missing, replace screws.
If misadjusted, see Adjust Actuator Pin
Adjustment Screws, page 31.
Hardened material in front head (passage-
way and spray tip)
Check for blockage, perform Remove Hard-
ened Material from Internal Mix Front Head
on page 32 as necessary.
Hardened material in the needle/seat area Remove needle assembly, clean and replace if
necessary
Resin is present but
NO catalyst
No catalyst Check catalyst fluid level
Catalyst pump in bypass Turn on and make ready to spray
Trigger clamp out of phase 1) Adjust Trigger Clamp, page 29
2) Adjust Actuator Pin Adjustment Screws,
page 31
Actuator pin adjustment screw missing Replace then perform Adjust Actuator Pin
Adjustment Screws, page 31
Trigger worn Inspect and replace if necessary
Actuator pin worn Inspect and replace if necessary
Trigger clamp assembly loose Inspect and torque as specified, see Adjust
Trigger Clamp on page 29
Catalyst check valve stuck closed Inspect and replace if necessary
Hardened material in the needle/seat area Remove needle assembly, clean and replace if
necessary
Problem Cause Solution