IOM/DSMT/001/01 Issue Date: 13/10/2000
Page : Page 4/12 Last Revision Date:
3.3 During running the pump
3.3.1 The pump is running smoothly.
3.3.2 The flow of sealing water is uninterrupted.
3.3.3 Leakage through stuffing box is normal. This is required for cooling of Stuffing box/
Gland packing.
3.3.4 The bearings are not getting heated up excessively.
3.3.5 Head and capacity developed by the pump is as specified.
3.3.6 Power consumption is within limit.
3.3.7 Ensure that there is no mechanical friction in the pump.
3.3.8 Stop the pump immediately, if any defects are noticed. Do not start the pump
unless the defects are rectified. Report immediately to the supplier, if it is not
possible to rectify the defects.
3.4 During stopping the pump:
3.4.1 Close the valve on delivery side.
3.4.2 Stop the motor.
3.4.3 If the pump is not required to be operated for a long time, then drain the casing
completely.
4. TECHNICAL DATA:
4.1 Direction of rotation
The standard direction of rotation is clockwise when viewed from driving end. The
pump suitable for anticlockwise rotation can also be supplied against specific
requirements.
4.2 Rotational speed
Normally the pumps are supplied suitable for speed of 1450 rpm. Please contact
supplier if the pump is to be used for higher speeds.
4.3 Bearings
The shaft is supplied with antifriction bearings at driving end and non- driving end.
The details of the bearings are given in the technical data chart (4.5.7). The
designations of bearings are as per SKF catalogue. However, equivalent bearings in
type, capacity and dimensions are also used.
4.4 Lubrication
4.4.1 Type of lubricant – The bearings are grease lubricated.
4.4.2 Quantity of grease – Please refer to Technical Data chart. (4.5.7)
4.4.3 Refilling period – After 1000 hours of running.
4.4.4 Bearing temperature – The permissible bearing temperature rise is 40°C above
ambient temperature
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