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Problem
Will not spray
Excessive air blowing
back
Excessive air leak
behind
trigger.
312578H
Cause
Cup is empty.
Fluid control valve (8) turned
too far clockwise.
Loose fluid nozzle (11).
Damaged fluid nozzle seal (19). Replace seal (19).
Worn u-cups/air valve.
Worn trigger.
Solution
Fill cup.
Adjust valve (8) counterclockwise.
Tighten fluid nozzle (11).
Repair gun (Kit 289408). Be sure to use
all included parts.
Replace trigger (part 289140). If leak
persists repair gun (Kit 289408).
Troubleshooting
11
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