Startup - Graco LineLazer GM 3500 Manuel D'instructions

Before You Start the Linestriper
1. See Flushing, page 12, to determine if the Line Lazer
should be flushed.
2. Be sure the gas tank is full.
3. Check the engine oil level.
NOTE: The engine stops automatically, or will not start,
if it is low on oil. If you try to start it again without adding
more oil, a red light (A) near the engine on/off switch
glows as you pull the starter rope.
4. Be sure the spark plug cable (J) is firmly pushed onto
the spark plug.

Startup

See Fig. 10
1. When starting a sprayer that IS NOT PRIMED, re-
move the spray tip.
2. Place the suction tube (S) into the paint, water or sol-
vent container, depending on whether you are flush-
ing or are ready to spray.
3. Open the black fuel shutoff lever (E) by pushing it in
the direction of the arrow.
CAUTION
Never start the engine unless fluid pressure is re-
lieved and the pressure control switch is turned OFF.
Attempting to start the engine when it is pressurized
could damage the electrical system.
4. Turn OFF the pressure control switch (K).
5. To start the engine:
a. Turn the pressure adjusting knob (L) all the
way counterclockwise to the lowest pressure
setting.
b. Slide the metal throttle lever (C) away from the
fuel tank to the maximum position (fully left).
c. If the engine is cold, close the choke by mov-
ing the gray lever (D).
d. If the engine is warm, close the choke by
moving the gray lever (D) only half way or not
at all.
e. Turn ON the engine switch (B).
WARNING
A rope that recoils too quickly may hit someone
and cause serious bodily injury. The rope could
also jam in the recoil assembly.
f. Hold the frame of the sprayer with one hand
and pull the starter rope (G) rapidly and firmly.
Continue holding the rope as you let it return.
Pull and return the rope until the engine starts.
Startup
g. Open the choke as soon as the engine starts,
except in cold weather. In cold weather, leave
the choke closed for 10 to 30 seconds before
opening it to keep the engine running.
6. Release the trigger cable and engage the gun trigger
safety latch. See page 21.
7. Remove the gun from the holder by unscrewing the
gun holder knob and lifting out the gun.
8. To start the pump:
NOTE: Lower the throttle setting for easier priming.
a. Open the pressure drain valve (R).
b. Turn ON the pressure control switch (K).
c. Turn the pressure control knob (L) about 1/4
turn from minimum pressure. Run the pump
until fluid is flowing smoothly from the pressure
drain valve, indicating the pump is fully primed.
d. Close the pressure drain valve (R).
e. Disengage the gun safety latch. Hold a metal
part of the gun firmly against a grounded metal
pail, squeeze the trigger until fluid flows from
the gun.
f. Release the trigger. Engage the safety latch.
NOTE: If you are using two guns, follow Step e and f,
above, for the second gun.
9. If you have not primed the sprayer with paint yet,
move the suction tube (S) to the paint container. Re-
lease the trigger safety latch. Trigger the gun into the
water/solvent pail just until paint appears. Release
the trigger and engage the trigger safety latch. Re-
peat for the second gun, if two guns are used.
10. Place the pail cover (F) on the pail.
To reduce the risk or serious injury from fluid
injection, never operate the spray gun with the tip
guard removed.
11. Install the tip guard and spray tip (M). See page 15.
12. Mount the gun in the gun holder. See page 20.
13. Engage the trigger cable. See page 21.
Always use the lowest fluid pressure and the lowest
throttle setting needed. Higher settings cause exces-
sive clutch cycling, premature tip wear and prema-
ture pump wear.
14. Adjust the engine speed and pump pressure. Trigger
the gun onto a test paper to check the spray pattern
and atomization. Turn the pressure adjusting knob
(L) until you get a good pattern. Then slowly lower the
throttle setting (C) as far as you can without changing
the spray pattern.
WARNING
CAUTION