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Page 10 HRO-ST3131 Mar 8, 2004
WARNING
If there are leaks, shut off the pump immediately and
release system pressure follow the “Pressure Clearance
Procedure” then tighten connections, start the pump
again and check to be sure leaking has stopped.
Always use the lowest air pressure necessary to get the
desired results, higher pressure waste fluid and cause
premature wear of the pump packing and spray tip.
Never operate the pump to run dry of the fluid being
pumped because a dry pump will quickly accelerate to a
high speed, possibly damage itself.
If the pump accelerates quickly or running too fast, shut
off immediately and check the fluid supply.
SPRAY STARTING AND ADJUSTING
Always follow the “Pressure Relief Procedure” before
cleaning, , or, removing the equipment or servicing any
part of system equipment.
•
Immerse the pump intake or suction tube in paint.
•
Make sure drain valve is open.
•
Let the pump run until it is primed and run until
paint flows smoothly out of prime / drain valve.
•
Close the prime
•
Squeeze the gun trigger and open the on-off air valve
gradually at first to from the gun, without spitting,
release the trigger and open the pump runaway valve
fully.
•
Tighten the tip retainer nut with moderate tension
only.
•
If pattern is not fully atomized, gradually increase
the pressure with the pump adjusting nut.
•
Adjust the pump to the minimum pressure required
to obtain the desired spray pattern of paint. If
atomization is not possible on thick paints,
thin with the compatible solvent.
NOTE:
The pump will stall out (stop) against pressure without
damage to the pump.
MAINTENANCE
DAILY SHUTDOWN
PROCEDURE
•
Shut off power to engine.
•
Close hydraulic ball valve.
•
Always bleed off paint pressure in the system by
triggering the gun open and opening the drain valve
and have a container ready to catch the paint
draining from the drain valve.
•
Remove the tip from the gun and clean and leave it
in solvent until ready to use again.
•
Do not disconnect the gun or hoses and keep the unit
filled with coating to reduce the need for flushing.
NOTE:
−
When using fast drying paints, immerse the suction tube
in a container of solvent during shutdown periods.
−
Clean the pump’s intake screen.
SHUTDOWN FOR STORAGE
Always follow the “Pressure Clearance Procedure” and
when storing the unit : proceed as follows.
•
Flush the unit clean, as instructed above. Sometimes
it takes several flushings, each with solvent, to clean
thoroughly.
Flush the pump, hoses, and gun with full of solvent
unless the flushing solvent is water or ketone solvent, to
remove water or ketone solvent, fill the system with min-
eral spirits solvent or light oil for long storage periods,
and wipe all external wetted parts with oil. Also remove
water or ketone solvent used, from exposed part of pump
displacement rod.
•
Use the lowest pressure setting possible.
•
If the pump accelerates quickly or is running too
fast, stop the pump immediately and check the mate-
rial supply tank.
•
Don’t leave a pump shut off if the material supply
has been exhausted and air has been pumped into the
lines.
•
Prime the pump and lines with material or flush and
leave filled with solvent, with pressure relieved.