Lowara LEZ 200-200 UNL 556 [15/19] Model ler lers lez
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Lowara LEZ 200-200 UNL 556 [15/19] Model ler lers lez

Lowara LER 250-400 UNL 9004 [15/19] Model ler lers lez
Installation, Operation and Maintenance Instruction
Model LER, LERS, LEZ
LER 100-english page 12
Revision 01
Article No 771073302
Issue 01/2010
All locking devices in the suction- and discharge-
pipe must be closed.
All parts must have taken on the temperature of
the environment.
Secure disassembled pumps, units or single
parts against tipping over or rolling off.
While disassembling the pump use of an open
flame (blowlamp, etc.) only, when there is no
danger of setting fire, cause an explosion or
cause injurious vapours.
Use original spare parts only. Pay attention to
the right materials and the matching design.
8.2 General
Carry out disassembly and mounting according to the
appropriate sectional drawing.
You will only need common tools.
Before disassembly check if required parts are ready.
Disassemble the pump only so far, as required for the
replacement of the repair part.
9. Spare parts, Spare pumps
9.1 Spare parts
Spare parts should be selected to last for two-year
continuous operation. If no other guidelines are
applicable, we recommend that you stock the number
of parts listed below (in accordance with VDMA
24296).
To ensure optimum availability, we recommend
that suitable quantities of spare parts are held in
stock, especially if these are made from special
materials and in the case of mechanical se
als,
because of the longer delivery times.
Number of pumps (incl. stand-by pumps)
2 3 4 5 6/7 8/9 10/+
Spare Parts Number of spare parts
Casing gasket 2 3 4 5 6 8 100%
Mech. seal 1 2 2 2 3 4 50%
Complete drive unit 1 1 1 1 1 2 15%
Ordering spare parts
When ordering spare parts, please supply the
following information:
Type:
______________________________________________________________________
S/N (Order No.)
_____________________________________________________
Part name
______________________________________________________________
Sectional drawing
___________________________________________________
All the information is given in the data sheet and the
relevant sectional drawing.
Store spare parts in dry and clean rooms.
9.2 Stand-by pumps
It is essential that a sufficient number of stand-
by pumps are kept ready for use in plants where
failure of a pump could endanger human life or
cause damage to property or high costs.
Regular checks should be carried out to ensure
that
such pumps are always ready for use (see
Point 6.8).
Store stand-by pumps according to point 6.8.
10. Faults - Causes and Solutions
The following notes on causes of faults and how to
repair them are intended as an aid to recognising the
problem. The manufacturer's Customer Service
Department is available to help repair faults that the
operator cannot or does not want to repair. If the
operator repairs or changes the pump, the design data
on the data sheet and chapter 2 of these Operating
Instructions should be particularly taken into account.
If necessary, the written agreement of the
manufacturer must be obtained.

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