SKF OLA Series, Owner'S Manual

Page: 46 / 52

9. Faults page 46
EN
Danger!
Working on products that have not been
disconnected from the power supply can
cause serious injury or death to persons.
Installation, maintenance, and repair
work may only be carried out by quali-
fied experts on products that have been
disconnected from the power supply.
The supply voltage must be turned off
before any product components are
opened.
Danger!
Hot surfaces of an electrical motor can
cause burn injuries. The surfaces of a
motor should only be touched with pro-
tective gloves or when motor is no
longer hot.
Danger!
Centralized lubrication systems are un-
der pressure when they are being oper-
ated. Centralized lubrication systems
must therefore be depressurized before
starting installation, maintenance, or re-
pair work and before making any
changes to the system.
Table 6 (cont.): Fault analysis and rectification
Malfunction Possible cause Rectification
Pump does not convey
lubricant; no pressure
build-up Pump blocked Measure motor current. If current is impermissibly
high:
Dismantle pump, crank by hand:
If resistance is high, replace the pump.
Motor jammed Measure motor current. If current is impermissibly
high:
Dismantle motor, crank by hand:
If resistance is high, replace the motor.
Incorrect rotational direction
of motor Check whether rotational direction corresponds to
direction indicated by arrow, change rotational direc-
tion if necessary.
Pressure-regulating valve
does not close Check pressure-regulating valve to make sure that
cracking pressure is correct and that there is no
contamination or damage.
If cracking pressure is incorrect or if the pressure-
regulating valve is damaged, change the valve. Only
use original SKF spare parts.
If contaminated, clean the pressure-regulating valve.
No pressure build-up in the
main lubricant line Air in the main lubricant line. Vent main lubricant line.
Main lubricant line leaky or
break in line Repair main lubricant line.
Pressure-regulating valve
does not close Check pressure-regulating valve to make sure that
cracking pressure is correct and that there is no
contamination or damage.
If cracking pressure is incorrect or if the pressure-
regulating valve is damaged, change the valve. Only
use original SKF spare parts.
If contaminated, clean the pressure-regulating valve.
Pressure relief valve does not
close Clean or replace pressure relief valve. Only use original
SKF spare parts.
Impermissible lubricant (see
technical data) Remove lubricant from entire system and dispose of
lubricant in the proper manner; fill system with suitable
lubricant.
Fill level too low Top up lubricant.