Graco Inc. 257999 Paint Sprayer User Manual


 
Repair
313872B 33
Remove Front End
1. Perform Pressure Relief Procedure, page 22.
2. Flush Gun, see page 25.
3. Perform Bleed Throat Seal Liquid Cartridge pro-
cedure on page 24 to bleed all fluid from cartridge or
replace with empty cartridge. TSL will spill if any
fluid remains in cartridge after this step.
4. Disconnect air quick coupler (AC). Use hex nut
driver to remove fluid manifold (AD).
5. Disconnect signal cable.
6. Rotate fluid housing (AK) 45 degrees counterclock-
wise to disengage fluid housing slots.
7. Pull fluid housing away from gun body to remove. If
fluid housing cannot be removed perform the follow-
ing steps.
a. Attach air quick coupler.
b. Pull and release the trigger or press and release
the red button on the solenoid valve.
c. Remove fluid housing.
d. Disconnect air quick coupler.
8. Disengage purge rod from ball socket in piston shaft
then remove purge rod.
9. Inspect fluid housing o-rings for wear or damage.
Replace if necessary.
NOTICE
Proper attachment of front end is critical. Do not
operate gun if front end is loose or not snug against
body. Improper attachment can cause slow leaks.
TI14463a
AD
AC
ti14479a
AK
ti14481a