Bran+Luebbe Product Equipment Troubleshooting: No Flow

Problem

Causes

• No voltage at the motor:

Check fuses and leads

• Motor broken:

Repair or replace motor

• Coupling broken:

Replace the coupling and eliminate the cause of the overload

• No product:

Fill suction vessel

• Suction or discharge line shut off:

Open the shut off valves

• Filter or pipe work clogged:

Clean filter or pipe work

• Valves of pumphead incorrectly fitted:

Fit the valves correctly (note the arrows !)

• Pump valves damaged or dirty:

Clean or replace pump valves

• Gas or air in the product chamber:

Vent and fill product chamber

• Discharge Pressure too high:

Check the adjustment of the safety valve, check discharge line for length and nominal width, carry out a calculation of the pipework.

• Suction lift too high:

Reduce suction head and, if necessary, increase supply pressure or install a surge tank.

• Stroke length adjustment on "0" mm:

Adjust stroke length.