Pentair Jung Pumpen MULTIDRAIN UV 305-1 Instructions De Service page 9

WARNING!
Check the plug and the mains cable for signs of mechanical
and chemical damage. Damaged or kinked cables must be re-
placed by the manufacturer.
NOTICE! When using a chain to lift the pump, please observe
the relevant national regulations regarding accident preventi-
on. Lifting gear must be checked regularly by an expert in ac-
cordance with the legal regulations.
Cleaning
The inlet strainer prevents coarse dirt from entering the pump.
Regular cleaning of the float and the foot strainer ensures opti-
mum performance and operation.
If the impeller needs to be cleaned due to blocking or clogging,
remove the screws on the underside of the pump and then re-
move the foot strainer.
Tightening torque M for A2 screw materials
A
M 6 M = 8 Nm,
A
M 8 M = 20 Nm,
A
M 10 M = 40 Nm,
A
M 12 M = 70 Nm,
A
foot strainer M = 3 Nm.
A
QUICK TIPS FOR REMEDYING
FAULTS
Pump does not work
• Check mains current (do not use a pin gauge)
• Fuse faulty = may be too weak (please refer to Electrical
Connection)
• Mains supply cable damaged = repair to be carried out by
manufacturer only
Pump runs but does not pump
• Empty the pressure pipe or hose to allow the non-return
valve to open and the air to escape from the pump housing.
Impeller blocked
• Solids and fibrous matter have become lodged in the pump
housing = clean
Decreased pumping performance
• Foot strainer obstructed = clean
• Pump housing obstructed = clean
• Impeller worn = replace
• Wrong direction of rotation (for a three-phase current) = ask
a qualified electrician to change 2 phases of the supply line
ENGLISH
9