Remove Front End; Attach Front End - Graco Fusion A Series Instructions Manual

Maintenance

Remove Front End

1. Follow the Pressure Relief Procedure, page 19.
2. Follow the Flush Gun procedure, page 20.
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 counterclockwise.
Unscrew lock ring completely and remove front end
of gun.
F

Attach Front End

Improper attachment of the front end may result in
serious injury from skin injection. To avoid injury,
check that the front end is securely attached and the
lock ring is snug against the handle before gun
operation.
1. Engage the piston safety lock (L). See Piston
Safety Lock, page 20.
L
30
NOTICE
R
TI2416A
TI2409A
2. Push on air cap (C) until it is flush with front of gun.
This ensures that mix chamber is all the way back.
C
3. Check that o-ring (21) is in position. Liberally
lubricate o-ring, threads of lock ring (R) and handle
(H), and outside of lock ring. Orient fluid housing (F)
as required for desired fluid manifold mounting
(bottom mounting is shown).
4. Insert keyed end of mix chamber (19) in socket (X).
Screw lock ring onto handle as far as possible by
hand.
Y
F
21
R
TI2416A
5. Turn fluid housing 1/8 turn clockwise to engage
slots (Y) and tabs (Z). Push on front end to ensure it
is properly seated. Continue screwing lock ring (R)
onto handle (H) very securely. When properly
assembled, lock ring is snug against handle.
R
TI2422A
Z
19
X
H
H
TI2423A
3A7314B