Daily Gun Maintenance

 

 

 

Problem

Cause

Solution

 

 

 

Excessive air

Loose fluid nozzle (11).

Tighten fluid nozzle (11).

blowing back

 

 

Damaged fluid nozzle seal (19).

Replace seal (19).

 

 

 

 

Excessive air leak

Worn u-cups/air valve.

Repair gun (Kit 289408). Be sure to use

behind

 

all included parts.

trigger.

Worn trigger.

Replace trigger (part 289140). If leak per-

 

 

sists repair gun (Kit 289408).

 

 

 

312579K

13

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Image 13
Graco 312579K important safety instructions Cause Solution