Operation
CAUTION
To avoid
Prime the Pump
1.See Fig. 3. Remove the tip guard and spray tip from the gun (102). See the gun instruction manu- al.
2.Close the air regulator (33) and
3.Close the fluid drain valve (D).
4.Engage the air line coupler (69) with the mating coupler (68) attached to the air manifold (46) and twist with a wrench to lock.
5.Check that all fittings throughout the system are tightened securely.
6.Place the suction tube (13) into the fluid supply container.
7.Open the fluid shutoff valve (67).
8.Open the
9.Hold a metal part of the gun (102) firmly to the side of a grounded metal pail and hold the trigger open.
10.Slowly open the air regulator (33) until the pump starts.
11.Cycle the pump slowly until all air is pushed out and the pump and hoses are fully primed.
12.Release the gun trigger and lock the trigger safety. The pump should stall against pressure.
13.If the pump fails to prime properly, open the drain valve (D). Use the drain valve as a priming valve until the fluid flows from the valve. Close the valve.
NOTE: When changing fluid containers with the hose and gun already primed, open the drain valve (D) to help prime the pump and vent air before it enters the hose. Close the drain valve when all air is eliminated.
Set the Air and Fluid Pressure
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. Install the tip guard and spray tip in the gun, as explained in the gun manu- al.
2.Open the air regulator (33) slowly. Use the regula- tor to control pump speed and fluid pressure. Always use the lowest air pressure necessary to get the desired results. Higher pressures cause premature tip and pump wear.
NOTE: To open the air regulator, turn the
WARNING
COMPONENT RUPTURE HAZARD To reduce the risk of overpressurizing your system, which could cause compo- nent rupture and serious injury, never
exceed the specified Maximum Incoming Air Pres- sure to the pump (see the Technical Data, on page 14).
3.With the pump and lines primed, and with ade- quate air pressure and volume supplied, the pump will start and stop as you open and close the gun.
CAUTION
Do not allow the pump to run dry. It will quickly accelerate to a high speed, causing damage. If your pump is running too fast, stop it immediately and check the fluid supply. If the container is empty and air has been pumped into the lines, refill the con- tainer and prime the pump and the lines, or flush and leave it filled with a compatible solvent. Eliminate all air from the fluid system.
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