Ranpump A8-PX Operating And Maintenance Manual page 13

WARNING !
Diaphragm pumps are sold as pump unit only. Installing a control
device (if needed) is responsibility of the operator.
If the power supply of the pump (compressor) is stopped, the air inlet
to the pump must be cut off immediately. Otherwise when compressor
restarts, pump may start unexpectedly.
Manual operation: If the power supply of the pump (compressor) is
stopped, operator must cut off the air feed to the pump manually. The
operator must be informed and warned about this.
Automatic operation: If the power supply of the pump (compressor) is
stopped, control unit must cut off the air feed to the pump
automatically. Installing this system is the responsibility of the
operator or the owner.
6.0. PUMP OPERATION INSTRUCTIONS
IMPORTANT NOTE
The pump has a variable temperature resistance to the
transferred fluid. The temperature resistance of the diaphragm,
balls and ball seats defines the temperature resistance of the
pump.
6.1. Flush the pump before use
Pump is tested with water. Flush the pump with a proper solvent before use if your fluid is affected by
water. Follow the instructions in Starting and Adjusting the Pump.
6.2 Starting and adjusting the pump
1- Check pump grounding before use.
2- Check fittings to be sure they are tight. Use a compatible liquid thread sealant (teflon, etc.) on
male threads. Tighten fluid inlet and outlet fittings securely.
3- Submerge the suction hose in the fluid.
Note: If the inlet fluid pressure is more than 25% of the outlet working pressure, ball check
valves will not close fast enough, result will be inefficient pump operation.
4- Place discharge hose in a suitable container.
5- Turn off the fluid drainage valve.
6- Turn the air regulator knob three quarters of a cycle clockwise, and open all bleed-type master
air valves.
7- Increase the air pressure slowly using the air regulator untill the pump primes. Set air regulator
to 2 bar pressure. Operate the pump slowly until it is fully loaded.
8- Working with thick fluids, operate the pump very slowly until it is fully loaded.
9- Pump is tested with water. If you need a clean pump in your process, flush the pump with
suitable fluid until it is fully clean. Then place the suction hose in the fluid container to be pumped.
WARNING !
Do not run the pump before you make sure all the
adjustments are OK.
13