Davey CS Series

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Installation
All motors must be installed in such a manner as to ensure
the air intake is not obstructed. Bed plates or slide rails should
be rmly xed to a solid, level foundation to ensure the motor
remains rigid and vibration free. Shims or packers (if required)
must be of adequate size and placed adjacent to and between
base xings.
Operation
Standard motors are designed for a 415 volt (±5% ) 3 phase,
50 Hertz supply. Use of standard motors on other supply
systems should be veried with our ofce prior to installation.
All units are S1 rated to AS1359 and associated standards,
for operation below 1000 metres at a maximum ambient
temperature of 40°C.
For operation in conditions other than that above please
contact Davey.
Electric motor starting imposes severe thermal stress on
the motor, the frequency of starting should be minimized to
ensure optimum machine life.
Number of Starts per hour
The number of starts per hour is dependant on the inertia
of the driven load and the load torque demand. A guide to
generally acceptable starts per hour would be as per table.
For greater number of starts per hour, please contact Davey.
STARTS PER HOUR
Frame 2 pole
90 16
100 16
112 16
132 10
160 10
180 8
MOTOR OPERATION AND MAINTENANCE
Permitted Starting Time
In respect to the temperature rise of the motor, starting time
(i.e. from rest to operational speed) should not exceed the
time indicated in the following table. Motor must be allowed to
cool prior to each start.
MAXIMUM STARTING TIME (SEC)
Frame Starting Method 2 pole
71 D.O.L. -
80 D.O.L. 15
90 D.O.L. 10
100 D.O.L. 12
112 D.O.L. 10
132 D.O.L. 14
160-355 D.O.L. 15
160-355 star-delta 45
Maintenance
To avoid damaging the mechanical seal, do not operate the
pump without water in the pump casing. If the supply water is
interrupted stop the pump immediately.
Do not set the water ow by partially closing off the suction
valve as restricting the supply water can cause cavitation and
severely damage the pump’s components.
If the pump makes strange noises or vibrates, stop the pump
and check for the cause/s.
It is not advisable to start and stop the pump frequently. If the
power is interrupted during operation, turn the power switch
off immediately.
If the pump is to remain inactive for a long period of time,
wash the pump body and drain the water out of the pump
casing completely.
When the air temperature drops below 0°C, drain the water
from the pump casing as soon as it nishes operating.