Repair
309550U
31
Check Valves
Before disassembling, press on ball (26c) to test
check valve for proper movement and spring
action.
1.
Follow
Pressure Relief Procedure
, page 15.
2.
Remove fluid manifold (M). Leave air connected.
Clean Fluid Manifold
, page 20.
3.
Flush gun to remove residual A and B compo-
nents, page 20. Follow
Pressure Relief Proce-
dure
, page 15.
4.
Disconnect air.
CAUTION
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
5.
Pry out check valves (26) at notch.
WARNING
Read warnings, page 7. Damaged check valve o-rings
(26f, 26g) may result in external leakage. Replace
o-rings if any damage is seen.
6.
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.
7.
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.
8.
Attach fluid manifold. Connect air. Return gun to
service.
26b
26
B
A
26e
26c
26d
26g
26a
26f
TI2429A