Installation, Operating and Maintenance Instruction
Model TDB, TDV
TDB, TDV
page 63
Revision 01
Issue 06/2012
If wear is heavy, it must be assumed that the
motor is not properly aligned with the pump or
that the distance between the coupling sections
has changed. Replace worn elements and re-
install or adjust coupling, as described in
chapter 5.3.
7.5 Cleaning of pump
The pump must not be cleaned with pressurised
water - water will get into the bearings.
8. Spare Parts, Spare Pumps
8.1 Spare Parts
Spare parts should be selected to last for two-years
continuous operation. If no other guidelines are
applicable, we recommend that you stock the number
of parts listed below (in accordance with DIN 24296
(VDMA 24296).
Number of pumps (incl. stand-by pumps)
2 3 4 5 6/7 8/9 10/+
Spare Parts
Number of spare parts
Impeller
i
i
i
2i
2i
3i
30%
Diffuser
i/2
i/2
i/2
i
i
3i/2 15%
Wear ring-casing
2i
2i
2i
4i
4i
6i
30%
Shaft with key and shaft
screws/nuts
1
1
2
2
2
3
30%
Bearing (roller bearing)
1
1
2
2
2
3
30%
Shaft sleeve
2
2
2
3
3
4
50%
Joints for pump casing
sets
4
6
8
8
9
12 150%
other joints sets 4
6
8
8
9
10 100%
Mechanical seal
2
3
4
5
6
7
90%
i = number of stages
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 seals,
because of the longer delivery times.
8.2 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
chapter 6.8).
Store stand-by pumps according to chapter 6.8.
9. 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
of these Operating Instructions should be particularly
taken into account. If necessary, the written
agreement of the manufacturer must be obtained.
Summary of Contents for TDB 120
Page 119: ...TDB TDV 119...
