Check oil level in pump through sight glass on side of pump body.
The accumulator head is equipped with a valve stem. This allows the air pressure to be set between 100 and 110 PSI. This eliminates any fluctuations in pressure gauge readings.
Check oil level in engine crankcase. Use 30 wt. detergent oil.
Check oil level in the gear reduction unit. Oil should be level with highest mark on dipstick. Use. 90 wt. gear lube as needed.
Use lead free gasoline in engine.
Connect a sound 3/4" or larger hose to the female hose swivel on the inlet side of the pump. The pump MUST be either suction fed (out of a bucket, barrel or pond), or gravity fed (from a water truck). A PRESSURIZED LINE CANNOT BE USED TO SUPPLY WATER TO THE PUMP. Never connect this unit to a water source such as a standpipe, hose bib, tap water faucet, etc. The source of water should be located as close to the pump as possible, 6-8 ft. maximum.
Connect the high pressure outlet hose supplied with the pump to the outlet coupling on the pump and the line to be tested. One end has a swivel fitting for easy hook-up.
Open the 1/4 turn ball valve on the outlet side of the pump.
Open the hosebib on the pump.
Operating the Pump
Start the engine; RPM has been preset at the factory to deliver the flow and pressure specified. DO NOT ADJUST.
The pressure regulator has been preset at the factory for 300 PSI. If you wish to change this setting you must remember to make this adjustment while the water is flowing freely through the pump. NEVER ADJUST THE PRESSURE REGULATOR WITH THE UNIT UNDER PRESSURE AND/OR BALL VALVE CLOSED. To adjust pressure, first loosen the locknut at the base of the threaded shaft. Turning the T-handle clockwise will increase the output pressure. Conversely, turning the T-handle counterclockwise will decrease the output pressure. If adjustments are necessary the T-handle should be turned SLOWLY.
Once test pressure has been reached, shut off engine and close ballvalve simultaneously. A checkvalve on the high pressure side of the pump prevents pressure from bleeding back through the pump. DO NOT CLOSE ("slam°) THE VALVE WHILE ENGINE IS RUNNING. Never leave the engine running with the ballvalve closed.
Check for leaks at this time. If no leaks are found but a drop in pressure occurs, air in the line is the probable cause.
Remember These Cautions
Check all fluid levels prior to operating pump.
Use a sound 3/4" or larger supply hose .
NEVER connect the pump up to a pressurized line. Standpipes, hose bibs, tap water faucets, etc., contain enough pressure to damage the diaphragm pump.
NEVER close the ball valve while the engine is running.
Flush system thoroughly after each use.
After test pressure is reached stop engine and close ball valve.
Note the pressure reading on the gauge. Wait the specified time and then note any pressure drop.
After noting the pressure at the end of the test period, open the ball valve and pressurize the line back up to the original test pressure.
Shut off the engine and close the ball valve again. Now open the hose bib on the pump and draw out enough water to duplicate the pressure drop experienced during the test. Collect this water in a container so that it may be measured. By duplicating the pressure drop you have also duplicated the exact amount of water lost during the test period.