AIRLESSCO GS6250 - Manual (Page 9)

Operation
3A1187E 9
starter. Pull firmly and rapidly to start the
engine. Do NOT drop the rope. Hold on to the
handle while rewinding, or the rope may
rewind improperly and jam the assembly. If the
engine does not start, open the choke a little
more. If the engine floods, open the choke all
the way and continue cranking.
g. After the engine is warm, gradually close the
choke, raise the RPM of engine slightly by
moving throttle to the left. Close the prime
valve.
h. Point the gun into the metal pail and hold a
metal part of the gun firmly against the pail.
Maintain firm metal to metal contact between
gun and container.
i. Disengage the gun trigger lock and squeeze
the gun trigger. At the same time, slowly turn
the pressure control knob clockwise, just
enough to move liquid at low pressure.
4. Prime the pump.
a. Allow pump to operate until paint comes from
gun.
b. Release the trigger and engage the gun trig-
ger lock.
c. Turn Prime Valve OPEN to the prime position
ensuring the pressure is released from the
system.
d. Turn Pressure Control Knob to minimum pres-
sure.
e. Install spray tip onto gun.
f. Close the prime valve to the pressure position.
g. Turn the pressure control knob to desired
spray pressure.
h. Disengage the gun safety lock and you are
ready to start spraying.
NOTE: If you spray into the paint bucket, always use the
lowest spray pressure and maintain firm metal to metal
contact between gun and container.
Adjust the Pressure
When adjusting the pressure, turn the Pressure Control
Knob clockwise to increase pressure and counterclock-
wise to decrease pressure. Always use the lowest pres-
sure necessary to completely atomize the material. If
more coverage is needed, use a larger tip rather than
increasing the pressure. Check the spray pattern. The
tip size and angle determines the pattern width and flow
rate.
Shutdown
1. Relieve Pressure, page 6.
2. Clean the tip and gun as recommended in the sepa-
rate Gun Manual supplied with the gun.
3. If spraying water-based material or a material that
could harden in the sprayer overnight, flush the
sprayer after use. See Flushing, page 7.
NOTE: To stop the unit in an emergency, turn the engine
off. Then relieve the fluid pressure in the pump and
hose. See Pressure Relief Procedure, page 6
NOTICE
Do not start engine without fluid pump having
enough fluid so that it can be primed. Running fluid
pump dry will decrease life of the pumps packings.
• To reduce the risk of injection, never hold your
hand, body, fingers or hand in a rag in front of the
spray tip when cleaning or checking for a cleared
tip. Always point the gun toward the ground or into
a waste container when checking to see if the tip is
cleared or when using a self cleaning tip.
• To stop the unit in an emergency, turn the engine
off. Then relieve the fluid pressure in the pump and
hose. See Pressure Relief Procedure, page 6
NOTICE
NOTE: Operating the sprayer at higher pressure than
needed wastes material, causes early tip wear, and
shortens sprayer life.