Prime and Adjust the Pump

Operation

1.Lock gun trigger. Remove tip guard and spray tip from gun. Refer to gun manual.

2.Close gun air regulator and pump air regulator (H) by turning knobs counterclockwise reducing pres- sure to zero. Close bleed-type air valve (E). Also verify that all drain valves are closed.

3.Check that all fittings throughout system are tight- ened securely.

4.Position pail close to pump. Do not stretch suction hose tight/let it hang to assist fluid flow into pump.

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FIG. 5

5.Hold metal part of gun (L) firmly to side of grounded metal pail, unlock trigger, and hold trigger open.

6.Pumps with runaway protection: Enable the prime/flush function by pushing the prime/flush but- ton on the DataTrak.

7.Open bleed-type air valve (E). Slowly open the pump air regulator (H) until the pump starts.

8.Cycle pump slowly until all air is pushed out and the pump and hoses are fully primed.

9.Pumps with runaway protection: Disable the prime/flush function by pushing the prime/flush but- ton on the DataTrak.

10.Release gun trigger and lock trigger safety. Pump should stall against pressure.

11.With the pump and lines primed, and with adequate air pressure and volume supplied, the pump will start and stop as you open and close the gun/valve.

12.Use the air regulator to control the pump speed and the fluid pressure. Always use the lowest air pres- sure necessary to get the desired results. Higher pressures cause premature tip/nozzle and pump wear.

NOTICE

Never allow the pump to run dry of the fluid being pumped. A dry pump quickly accelerates 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 container 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

For a brief shutdown, relieve the pressure, page 11. Stop the pump at the bottom of its stroke to prevent fluid from drying on the exposed displacement rod and dam- aging the throat packings.

For a longer shutdown, or overnight, always flush the pump before the fluid dries on the displacement rod. Relieve the pressure, page 11.

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