OPERATION
WARNING
Pressure Relief Procedure
To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin, or injury from moving parts, always follow this pro- cedure whenever you shut of f the pump, when checking or servicing any part of the spray/dis- pensing system, when installing, cleaning or changing spray tips/nozzles, and whenever you stop spraying/dispensing.
1.Engage the gun/valve safety latch.
2.Shut off the air to the pump.
3.Close the
4.Disengage the gun/valve safety latch.
5.Hold a metal part of the gun/valve firmly to the side of a grounded metal pail, and trigger the gun/valve to relieve pressure.
6.Engage the gun/valve safety latch.
7.Open the drain valve and/or the pump bleeder valve (required in your system), having a con- tainer ready to catch the drainage.
8.Leave the drain valve open until you are ready to dispense again.
If you suspect that the spray tip/nozzle or hose is completely clogged, or that pressure has not been fully relieved after following the steps above, VERY SLOWLY loosen the tip guard retaining nut, nozzle or hose end coupling and relieve pressure gradually, then loosen completely. Now clear the tip/nozzle or hose.
WARNING
Moving parts can pinch or amputate your fingers or other body parts. When the pump is operating, the priming piston (located at the pump intake) and the air motor piston (located behind the air motor shield) move. Therefore, NEVER operate the pump with the air motor shield removed, and keep your fingers and hands away from the priming piston.
Before attempting to clear an obstruction from the priming piston or service the pump, follow the Pres- sure Relief Procedure Warning above to prevent the pump from starting accidentally.
Flush the Pump Before Using
This pump was tested with lightweight motor oil which was left in to protect the pump parts. To prevent contami- nation of the fluid being pumped, flush the pump with a compatible solvent before using it. If the pump is being used to supply a circulating system, allow the solvent to circulate until the pump and lines are thoroughly flushed.
Keep the packing
Starting and Adjusting the Pump
1.Make sure the air regulator (C), drain valve (H), and pump bleeder valve (4) are closed.
2.Open the
3.Hold a metal part of the gun/valve firmly to the side of a grounded metal pail, and trigger the gun/valve.
4.Slowly open the air regulator (C) until the pump starts running slowly and smoothly (about 20 psi [1.4 bar]). Cycle the pump slowly until all the air is purged from the pump and lines.
5.If the pump is not priming properly, open the bleeder valve (4) slightly. Do not open it all the way; the han- dle can come off. Cover the bleeder valve hole with something other than your hand or fingers and use it as a priming valve until the fluid appears at the bleeder hole. Close the bleeder valve.
WARNING
To reduce the risk of fluid injection, DO NOT use your hand or fingers to cover the bleeder hole when priming the pump.
6.Release the trigger and engage the safety latch. The pump will stall against pressure.
7.In a direct supply system, the pump will start and stop as the gun/valve is opened and closed. In a circulat- ing system, it will run continuously and speed up or slow down as the system demands. Always use the lowest pressure necessary to obtain the desired re- sults.
WARNING
To reduce the risk of serious bodily injury, including fluid injection and splashing in the eyes or on the skin, and property damage, never exceed the maxi- mum air and fluid working pressure of the lowest rated component in your system. See EQUIPMENT MISUSE HAZARD, System Pressure, on page 3.
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 acceler- ates quickly, or is running too fast, stop it immediately and check the fluid supply . If the supply container is empty and air has been pumped into the lines, prime the pump and the lines with fluid, or flush the pump and leave it filled with a compatible solvent. Be sure to eliminate all air from the fluid system.
NOTE: A pump runaway valve (F) can be installed on the air line to automatically shut off the pump if it starts to run too fast.