Xylem TVS - Manual (Page 43)

Installation, Operating and Maintenance Instruction
Model TVS
page 35
10. Repairs
Repairs to the pump or pump system may only
be carried out by authorized skilled personnel or
by the manufacturer's specialist staff.
Trained Customer Service engineers are available to
assist with installation and repair work on request.
When removing the pump or the motor, you must
comply with Point 1.4 "Safety instructions", Point 3.1
"Transport, Handling" and Point 6.3 "Shutting down".
11. Spare parts, Reserve pumps
11.1 Spare parts
Spare parts should be selected to last for two years of
continuous operation. If no other guidelines are
applicable we recommend that you stock the number
of parts listed below (in accordance with DIN 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 because of the longer delivery times.
Number of Spare Parts
P
Spare Parts 1 - 2 3 4 5 6 - 7 8 - 9 10/more
Impeller 1 x N 1 x N 1 x N 2 x N 2 x N 3 x N 0,3 x N x P
Guide wheel or multi-stage
casing 0,5 x N 0,5 x N 0,5 x N 1 x N 1 x N 1,5 x N 0,15 x N x P
Joints for pump casing
sets 4 6 8 8 9 12 0,15 x N x P
Bearing bush sets 2 2 2 3 3 4 0,5 x N x P
Bushing (if present) 2 2 2 3 3 4 0,3 x N x P
Shaft + coupling 1 1 2 2 2 3 0,3 x N x P
Non-return valve 1 1 2 2 2 3 0,3 x N x P
Other joints sets 4 6 8 8 9 10 1 x N x P
P = Number of pumps (incl. stand-by pumps) N = Number of steps
Ordering spare parts
When ordering spare parts, please supply the following
information:
Type:
______________________________________________________________________
Order no.:
_______________________________________________________________
Sectional drawing:
__________________________________________________
Part designation:
_____________________________________________________
All the information is given in the relevant sectional
drawing.
11.2 Reserve 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 8).