Spray Tip And Tip Guard; Gasket Selection; Installation; Operation - Graco LineLazer GM 3500 Manuel D'instructions

WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 7.
WARNING
Failure to install or use the RAC IV tip guard as-
sembly correctly may result in an undirected spray
of paint into the eyes or on the skin of the operator.
Be sure you:
Use the appropriate gasket for the solvent used.
Fully insert the tip into the guard.
Fully tighten the guard onto the gun nozzle
using a wrench.
Turn the handle so it is parallel to the gun
nozzle.
When replacing a worn spray tip, always install
a new gasket and seat.

Gasket Selection

WARNING
To reduce the risk of fluid splashback into the eyes
or on the skin, use the appropriate gasket as
specified in the following text.
Use the black rubber gasket (D) ONLY with latex and
oil-based paints, stoddard solvents, mineral spirits, tur-
pentine and water. When using this gasket, the spray tip
can be removed and replaced without using tools.
Use the red or yellow plastic gasket (C) with the same
fluids as above and with most other solvents, including
lacquer thinner, trichloroethylene, MEK, acetone, brush
cleaner, xylol. When using this gasket, loosen the RAC
IV retaining nut to remove the spray tip.

Installation

Relieve pressure. Install a tip (F) so the flange (G) on the
cylinder fits into the slots (H) at the base of the spray tip
guard (J). See Fig. 11.
Place the seat (E) on a pencil, curved side out, as shown
in Fig. 12. Guide the seat into the retaining nut (A) and
turn the seat until it straddles the cylinder of the spray tip
(F). Drop in the appropriate gasket and press it down. If
using the red or yellow gasket (C), be sure the flat side
faces out of the retainer (A). See Fig. 11.
Screw the spray tip guard snugly onto the gun, holding
it in the desired position while tightening retaining nut (A).
NEVER use a wrench to turn the plastic tip guard (J), to
avoid damaging the guard.

Spray Tip and Tip Guard

Operation

WARNING
Keep clear of the nozzle! High pressure fluid from
leaks or spray can penetrate the skin and cause
extremely serious injury, including the need for
amputation. The spray tip guard provides extra
protection against injection, but does not prevent it!
Never cut off the spray tip guard.
Be sure the spray tip handle is in the FULL SPRAY posi-
tion before operating the gun. See Fig. 11.
Clearing a Clogged Spray Tip
Disengage the trigger cable(s). Engage the gun safety
latch. Turn the arrow handle to the FULL CLEAN posi-
tion. See Fig. 13. Release the safety latch and trigger the
gun. Fluid pressure should force out the clog. Return the
arrow handle to the full spray position. If it is still
clogged , follow the Pressure Relief Procedure on
page 7 and remove the spray tip for cleaning.

Maintenance

Change the seat and gasket when the spray tip wears
out; these parts wear at about the same rate.
A
J
G
Fig. 11 H
E
A
Fig. 12
GUN NOZZLE
RAC IV
DripLess
TIP GUARD
TIP
HANDLE
FULL SPRAY POSITION
Fig. 13
C
RED or YELLOW
D
BLACK
E
F
0091
F
0092
FULL CLEAN POSITION
0093