Operation
WARNING
COMPONENT RUPTURE HAZARD
To reduce the risk of overpressurizing your system, which could cause
component rupture and serious injury, never exceed the specified maximum air input pressure to the pump (see Technical Data on page 20).
10.Control the pump speed and fluid pressure with the air regulator (E). Always use the lowest air pressure necessary to get the desired results.
Higher pressure causes premature spray tip and pump wear.
11.With the pump and lines primed, and with adequate air pressure and volume supplied, the pump starts and stops as the spray gun is opened and closed. In a circulating system, the pump runs continuously and speeds up or slows down as supply increases or decreases until the air supply is shut off.
CAUTION
Never allow the pump to run dry of the fluid being pumped. A dry pump will quickly accelerate to a high speed, possibly damaging itself. If your pump accel- erates quickly, or is running too fast, stop it immedi- ately and check the fluid supply. If the supply con- tainer is empty and air has been pumped into the lines, refill the container and prime the pump and the lines with fluid, or flush and leave it filled with a compatible solvent. Be sure to eliminate all air from the fluid system.
Shutdown and Care of the Pump
WARNING
To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8.
For overnight shutdown, relieve the pressure, and always stop the pump at the bottom of the stroke to prevent the fluid from drying on the exposed displacement rod and damaging the throat packings.
Always flush the pump before the fluid dries on the displacement rod. See Flushing the Pump.
Flushing the Pump
WARNING
FIRE AND EXPLOSION HAZARD
Before flushing, read the section FIRE
AND EXPLOSION HAZARD on page
4.Be sure the entire system and flushing pails are properly grounded. Refer to Grounding on page 5.
Flush with a fluid that is compatible with the fluid you are pumping and with the wetted parts in your system. Check with your fluid manufacturer or supplier for recommended flushing fluids and flushing frequency. Always flush the pump before fluid dries on the displacement rod.
CAUTION
Never leave water or
WARNING
To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8.
1.Relieve the pressure.
2.Remove the spray tip from the gun.
3.Hold a metal part of the gun firmly to the side of a grounded metal pail.
4.Start the pump. Always use the lowest possible fluid pressure when flushing.
5.Trigger the gun.
6.Flush the system until clear solvent flows from the gun.
7.Relieve the pressure.
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