Repair; Tools Required; Lubrication; Remove Front End - Graco 309550Y Instructions - Parts Manual

Repair

Tools Required

Tools needed for complete gun repair:
• adjustable wrench
• flat head screwdriver (included)
• 1/8 in. (3 mm) diameter rod
• 5/16 hex nut driver (included)

Lubrication

Liberally lubricate all o-rings, seals, and threads. Lubri-
cate threads and outside of lock ring (11). See page 43
to order lubricant.
309550Y

Remove Front End

WARNING
Read warnings, page 7. Proper attachment of front
end is critical. Do not operate gun if front end is loose
or lock ring is not snug against handle.
1.
Follow Pressure Relief Procedure, page 15.
2.
Flush Gun, page 20.
CAUTION
If lock ring (R) is stuck due to material buildup, do not
force it by turning entire front end. Locating tabs (Z)
may break off. Soak front of gun in solvent to soften
cured material and free lock ring.
3.
Unscrew lock ring (R) until front end of gun is
loose. Turn fluid housing (F) 1/8 turn counterclock-
wise. Unscrew lock ring completely and remove
front end of gun.
R
F
Repair
TI2416A
27