Setup - Graco LineLazer GM 3500 Manuel D'instructions

General Information
NOTE: Reference numbers and letters in parentheses
in the text refer to the callouts in the figures and the
parts drawing.
NOTE: Always use Genuine Graco Parts and Acces-
sories, available from your Graco distributor.
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE OR EXPLOSION HAZ-
ARD on page 6.
1. Sprayer: make sure the grounding chain (106)
contacts the ground while the unit is moving. See
Page 42. For stationary spraying, connect a
ground wire and clamp (159) to a true earth
ground.
2. Fluid hoses: use only grounded hoses with a
maximum of 500 ft. (150 m) combined hose
length to ensure grounding continuity.
3. Spray gun: obtain grounding through connection to
a properly grounded fluid hose and sprayer.
4. Object being sprayed: according to local code.
5. Fluid supply container: follow your local code.
6. Solvent pails used when flushing: follow your local
code. Use only metal pails, which are conductive,
placed on a grounded surface. Do not place the
pail on a nonconductive surface, such as paper or
cardboard, which interrupts the grounding continu-
ity.
7. To maintain grounding continuity when flushing or
relieving pressure , hold a metal part of the spray
gun firmly to the side of a grounded metal pail,
then trigger the gun.
159
Fig. 1

Setup

Pressure Relief Procedure
INJECTION HAZARD
Fluid under high pressure can be in-
jected through the skin and cause seri-
ous injury. To reduce the risk of an injury
from injection, splashing fluid, or moving parts, fol-
low the Pressure Relief Procedure whenever you:
are instructed to relieve the pressure,
stop spraying,
check or service any of the system equipment,
or install or clean the spray tips.
1. Engage the spray gun safety latch.
2. Turn the ON/OFF switch to OFF.
3. Flip the pressure control switch to OFF.
4. Disengage the gun safety latch. Hold a metal part
of the gun firmly to the side of a grounded metal
pail, and trigger the gun to relieve pressure.
5. Engage the gun safety latch.
6. Hold the pressure relief tube firmly to the side of a
grounded metal pail, and open the pressure relief
valve. Leave the valve open until you are ready to
spray again.
7. Disconnect the spark plug cable to prevent the
system from starting unexpectedly.
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above, very slowly loosen the
tip guard retaining nut or hose end coupling and relieve
pressure gradually, then loosen completely. Now clear
the tip or hose.
Valve shown in
CLOSED position.
Fig. 2
WARNING
Valve shown
in OPEN position.
Pressure
Hose
Suction
Tube
Pressure
Relief Tube