Graco 309550Y 사용자 설명서

Before disassembling, press on ball (26c) to test 
check valve for proper movement and spring 
action.

Follow Pressure Relief Procedure, page 15.

Remove fluid manifold (M). Leave air connected. 

Clean Fluid Manifold, page 20. 

Flush gun to remove residual A and B compo-

nents, page 20. Follow Pressure Relief Proce-
dure, page 15.

Disconnect air.

To prevent cross-contamination of the check valves, 
do not interchange A component and B component 
parts. The A component check valve is marked with 
an A.

TI2543A

M

TI2540A

Pry out check valves (26) at notch.

Read warnings, page 7. Damaged check valve o-rings 
(26f, 26g) may result in external leakage. Replace 
o-rings if any damage is seen. 

Slide filter (26d) off. Clean and inspect parts. Thor-

oughly inspect o-rings (26f, 26g). If necessary, 
remove screw (26b) and disassemble entire check 
valve.

Reassemble check valves. Screw (26b) should be 

flush (within 1/16 in. or 1.5 mm) of housing (26a) 
surface. Liberally lubricate o-rings (26f, 26g) and 
carefully reinstall in fluid housing.

Attach fluid manifold. Connect air. Return gun to 

service.

26b

26

26e

26c
26d

26g

26a
26f

TI2429A