AIRLESSCO SS4550 - Manual (Page 9)

6 7
STARTING UP
1. LEARN THE CONTROLS
2. PREPARE THE MATERIAL
3. STARTING THE SPRAYER
4. PRIME THE PUMP
PRESSURE CONTROL KNOB - used to adjust
pressure only. Turn clockwise to increase pressure and
counterclockwise to decrease pressure. (See Fig. 4)
PRIME & PRESSURE RELIEF VALVE - Turn to OPEN
position (see Fig. 3) to prime the pump. Turn to the
CLOSED position to spray.
FOLLOW "PRESSURE RELIEF PROCEDURES" ON
PAGE 9 WHENEVER YOU:
- are instructed to relieve pressure
- stop spraying
- checking or servicing any of the system equipment.
- or installing or cleaning the spray tip.
HANDLE SPRAY SYSTEM AS YOU WOULD A LOADED
FIREARM!
CAUTION: 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.
a. Prepare the material according to the material
manufacturer's recommendations.
b. Place pump or suction tube into material container.
SEE FIGURE 3 & 6 ON PREVIOUS PAGE
a. Prime Valve must be open - priming position.
b. Pressure Control Knob must be in low pressure.
c. Follow the procedure under "How to Flush", page 6,
steps 6 through 12.
To stop the unit in an emergency or before performing
any service or maintenance procedure follow the PRES-
SURE RELIEF PROCEDURE on page 9 to relieve the fluid
pressure.
WARNING
a. Allow pump to operate until paint comes from gun.
b. Release the trigger and engage the gun safety latch.
c. Turn Prime Valve OPEN to the prime position ensuring
the pressure is released from the system.
d. Turn Pressure Control Knob to minimum pressure.
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.
WARNING
If you spray into the paint bucket, always use the lowest spray
pressure and maintain firm metal to metal contact between
gun and container. See page 6, Fig 6.
a. Turn the Pressure Control Knob Clockwise to increase
pressure and counterclockwise to decrease pressure.
b. Always use the lowest pressure necessary to completely
atomize the material.
NOTE: Operating the sprayer at higher pressure than
needed, wastes material, causes early tip wear, and
shortens sprayer life.
c. If more coverage is needed, use a larger tip rather than
increasing the pressure.
d. Check the spray pattern. The tip size and angle
determines the pattern width and flow rate.
5. ADJUSTING THE PRESSURE
CONTINUED ON NEXT PAGE.........
a. The first 50 feet of airless spray hose should be 3/8", the
larger diameter works as a pulsation damper and saves
unnecessary cycling of the clutch. A minimum of 100
feet of hose should be used.
b. Adjust the Engine Speed and Pump Pressure. First set
the throttle lever to the maximum RPM setting (fully left).
Trigger the gun onto a test paper to check the spray
pattern and atomization. Adjust the Pressure Control
Knob until you get a good pattern. Reduce RPM of
engine to support pressure without laboring engines.
6. REDUCING CLUTCH WEAR