Instruction Manual

Operators Instructions for
AUTOPRIME Q Range Pump Unit
Manual No/Rev
W72-008E / 9
Our policy is one of continuous improvement and we reserve the right to alter specifications at any time
Page 15 of 18
Unit does not prime
• Volute drain tap open.
• Air leak in priming system.
• Air leak in suction hoses or fittings
• Blockage in suction hoses or strainer.
• Non return valve not sealing.
• Internal damage to pipe from solenoid
valve to vacuum pump.
• Solenoid valve not operating.
• Solenoid valve blocked.
• Priming tank air filter blocked.
• Priming tank knitmesh blocked.
• Vacuum pump belts loose or broken.
• Vacuum pump electric clutch not
engaged.
• Vacuum pump failure.
• Suction head too great.
Unit does not pump
• Blockage in delivery hoses.
• Blockage in impeller.
• Excessive impeller clearances.
• Broken Impeller.
• Pump drive coupling disengaged.
• Delivery head too great.