ITT ICM, Installation And Operating Instructions Manual

Page: 26 / 34

Installation and Operating Instructions
Model
ICM, ICMP
,
oil bath lubrication
9330-051-en
Revision 14
TM 6099 MPE/Wm
Page 17
Date 24/08/2011
7.1 Screw connections of the
housing
After initial loading by the operating pressure and
operating temperature the tightening torques of all
connection screws must be checked at the following
points:
♦
housing flange
♦
suction flange
♦
discharge flange
See also Section 6.1, para. 1 .
Other inspections are to be performed regularly, de-
pending on the operating requirements.
7.2 Bearing pedestal
The temperature of the bearing pedestal
should not be more than 50 °C above the
ambient temperature and must under no
circumstances exceed 80 °C.
At higher temperatures, call in qualified staff without
delay. If this is not possible, the pump must be shut
down and taken out of service.
In many cases it is also recommended to measure
vibration in order to detect bearing wear in good time.
We recommend a mineral oil with the following char-
acteristics for an expected bearing temperature of
about 70 °C:
Viscosity index : 85 . appr
Kinematic viscosity at 40 °C :
s
2
mm
40 . appr
A fully synthetic gear oil to ISO VG 220 is to be used
for temperatures below – 20 °C.
Replacing the bearings: The rolling bearings are
designed for an L
10
service life of >17,500 hours.
We recommend 17.500 working hours respectively
every 3 years a change of bearing should be made.
Oil changes: 1x per year at bearing temperatures of
about 45 °C.
Every 6 months at bearing temperatures of about
70 °C.
At higher temperatures more frequently in accordance
with the regulations.
When the pump is serviced, it is recommended to
replace the bearings and shaft seals as a precaution
and to pour in fresh oil.
Oil level check: The oil level is to be regularly
checked on the constant level oiler 638/1 or on the oil
sight glass 642/1 to ensure safe operation.
it must be ensured that there is always oil in the con-
stant level oiler; it must under no circumstances be
completely drained.
With a pump with an oil sight glass there must be
least enough oil in the pump for the oil level to be still
read on the sight glass.
In potentially explosive works it is
advisable to monitor the condition of
the rolling bearings.
If there is a suspicion that splash water could have
entered the bearing pedestal, the oil must be replaced
immediately. Even small amounts of water in the oil
reduce the service life of the rolling bearings to a frac-
tion of the normal service life.
If maintenance work is required, it is recommended to
also replace the bearings as a precaution.
We recommend the use of an oil cooler for medium
temperatures above 180 °C.
7.3 Cleaning
Care must be taken when cleaning the pump to en-
sure that it is not exposed to a strong water jet.
The ingress of water into the bearing pedestal would
substantially impair bearing lubrication.
7.4 Stand-by pumps
If a pump is on stand-by, it is to be started up from
time to time. Regularly turn the shaft by hand in the
direction of rotation.
This operation is to be performed more often for
pumps which are exposed to very strong vibrations
from the plant.
When dismantling the pump from the plant, drain it,
thoroughly clean it, seal with flange covers and store
in accordance with the instructions.