KSB CHTRa, Installation & Operating Manual

Page: 77 / 116

7 Servicing/Maintenance
77 of 116
CHTRa
▪ Check the rolling element bearings for running noises.
Vibrations, noise and an increase in current input occurring during unchanged
operating conditions indicate wear.
▪
Monitor the correct functioning of any auxiliary connections.
▪ Monitor the stand-by pump.
To make sure that stand-by pumps are ready for operation, start them up once a
week.
▪
Monitor the bearing temperature.
▪ Regularly check all guards for correct fastening.
7.2.2 Servicing plan
Prerequisites
▪
The pump set has been taken out of service.
▪ Any protective equipment mounted on the pump set has been dismantled or
removed.
The intervals indicated in the servicing plan apply to normal operating conditions
and trouble-free operation. Adapt the servicing plan to the actual operating
conditions, e.g. dirt accumulation, frequency of starts, load, etc.
In the case of problems and unusual operating conditions that present electric and
mechanical overloads of the pump set, off-schedule servicing must be performed.
NOTE
Perform a visual inspection of the pump set – as far as accessible – about 500
operating hours after commissioning/start-up.
Table 19: Servicing plan
What/where How Work Time intervals
Bearings
Oil ring lubrication
(if applicable)
Oil level, oil quality ( ð Section 10.2.7, Page 110) First oil change after 500
operating hours
Further oil changes after
3,000 operating hours, after
1 year at the latest
Replace bearings. ( ð Section 7.3.7, Page 85)
( ð Section 7.4.9, Page 95)
The life expectancy of
bearings is 25,000 operating
hours; replace the bearings
by new ones after this
period.
Bearings
Forced oil lubrication
(if applicable)
Oil level, oil quality ( ð Section 10.2.7, Page 110) Check after 500 operating
hours
First oil change after 8,000
operating hours, after 2
years at the latest
Replace bearings. ( ð Section 7.3.7, Page 85)
(
ð
Section 7.4.9, Page 95)
The life expectancy of
bearings is 25,000 operating
hours; replace the bearings
by new ones after this
period.
Coupling Oil or grease fill (if
applicable) See the manufacturer's
product literature. See the manufacturer's
product literature.
Check the axial movability. See the manufacturer's
product literature. Every 8,000 operating hours
(approx.)
Drive See the manufacturer's
product literature. See the manufacturer's
product literature. See the manufacturer's
product literature.
Instruments
(if applicable) Perfect condition and
proper functioning Replace defective
equipment;
see the manufacturer’s
product literature See the manufacturer's
product literature.