Troubleshooting

Troubleshooting

If the gun leaks at the swivel (21), see Swivel

Repair, below.

If the gun leaks at the nozzle, try adjusting the trigger free play. See Needle Adjustment on page 9.

If the leakage is not stopped, the needle (10) or valve14 seat (8) may need to be replaced. See Gun Repair on

page 10.

If the gun leaks at the packing nut (14), check the tightness of the packing nut. Remove the tip guard or nozzle extension. Insert a 0.125 in. (3.18 mm) diame- ter rod into the needle tip and tighten just enough to

stop leakage. See Fig. 3. If leakage is not stopped, the Fig. 3 packings or needle may need to be replaced. See Gun

Repair, page 10.

Safety Off

8125

8 307010

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Graco Inc 307010L, 208008 important safety instructions Troubleshooting