Munsch NPC Series - Returning the Pump to the Manufacturer; Preparations for Disassembling; Tab. 11 Actions for Return

Maintenance
7.3.1 Returning the pump to the m anufacturer
✔ Pump is unpressurized
✔ Pump is completely empty
✔ Electrical connecti ons are isolated and the mo tor is
secured against switch-on
✔ Pump has cooled down
✔ Coupling shield is dismounted
✔ For couplings with a spacer piece: spacer piece is removed
✔ Auxiliary operating systems are shut down, unpressurized
and emptied
✔ Manometer connections, manometer and fixtures are dis-
mounted
1. Always enclose a truthfully completed safety certificate
when returning pumps or com ponents to the manufact urer.
Order a safety certificate from the manufacturer if required.
2. Take necessary measures, depending on the required
repair work, as listed in the table below for returning the
pump to the manufa cturer.
Repair carried out
Action for return
at customer's
premises
Return the defective
component to the
manufacturer.
at manufacturer's
premises
Flush the pump and
decontaminate if hazardous
media were pumped.
Return the complete pump
(not disassembled) to the
manufacturer.
at manufacturer's
premises for
warranty repairs
For hazardous pumped
media only: flush and
decontaminate the pump.
Return the complete pump
(not disassembled) to the
manufacturer.
Tab. 11 Actions for return
7.3.2 Preparations for disassembling
✔ Pump is unpressurized
✔ Pump is completely empty, flushed and decontaminated
✔ Electrical connecti ons are isolated and the mo tor is
secured against switch-on
✔ Pump has cooled down
✔ Coupling shield is dismounted
✔ For couplings with a spacer piece: spacer piece is removed
✔ Auxiliary operating systems are shut down, unpressurized
and emptied
✔ Manometer connections, manometer and fixtures are dis-
mounted
The pumps are constructed in process archite cture as stan-
dard. The slide-in unit can be dismounted without removing
the volute casing and piping.
If a coupling with a spacer piece is used, the motor can
remain mounted on the base pl ate.
1. For disassembling take note of the following:
– Precisely mark the assembly orientation and position
of all components before disassembly.
– Dismount components concentrically without canting.
– Disassemble the pump (→ S ectional drawing).
2. Loosen the fixation bolts of support foot 183 and casing
feet 187.
3. Lift the pump out of the installation (→ 4.1.2 Lifting,
Page 13).
26 NPC series BA-2005.07 EN – 02