Operation
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, stop the pump at the bottom of its stroke to prevent fluid from drying on the ex- posed displacement rod and damaging the throat packings. Relieve the pressure.
Always flush the pump before the fluid dries on the displacement rod. See Flushing below.
Flushing
WARNING
FIRE AND EXPLOSION HAZARD Before flushing, read the section FIRE OR EXPLOSION HAZARD on page 4. Be sure the entire system and flushing pails are properly grounded. Refer to Grounding on page 5.
Flush the pump:
DBefore the first use
DWhen changing colors or fluids
DBefore fluid can dry or settle out in a dormant pump (check the pot life of catalyzed fluids)
DBefore storing the pump.
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.
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 tip guard and spray tip from the gun. See the gun instruction manual.
3.Remove the filter element from the fluid filter (4) or surge tank. Reinstall the filter or surge tank bowl.
4.Place the suction tube (7) in a container of solvent.
5.Hold a metal part of the gun firmly to the side of a grounded metal pail.
6.Start the pump. Always use the lowest possible fluid pressure when flushing.
7.Trigger the gun.
8.Flush the system until clear solvent flows from the gun.
9.Relieve the pressure.
10.Clean the tip guard, spray tip, and fluid filter ele- ment separately, then reinstall them.
11.Clean the inside and outside of the suction tube
(7).
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