SKF MKU Series Assembly Instructions

59
Table 22
Fault analysis and rectification:
Fault
Cause
Remedy
Pump does not supply lubricant; no
pressure build
-up
Pump jammed
• Measure the motor current. If current is too
high:
– Remove the pump, crank it by hand:
If resistance is high, replace the pump
Motor jammed
• Measure the motor current. If current is too
high:
– Dismantle motor, crank by hand:
If resistance is high, replace the motor
Incorrect rotational direction of motor
• Check the pressure limiting valve to make sure
that its opening pressure is correct and that
there is no contamination or damage.
•
If opening pressure is incorrect and cannot be
adjusted, or if the pressure limiting valve is
damaged, replace the valve. Only use original
SKF spare parts.
•
If contaminated, clean the pressure limiting
valve
No pressure build up in the main line
• Air in the main line
• Main line leaky/broken
• Check the pressure limiting valve to make sure
that its opening pressure is correct and that
there is no contamination or damage.
•
If opening pressure is incorrect and cannot be
adjusted, or if the pressure limiting valve is
damaged, replace the valve. Only use original
SKF spare parts.
•
If contaminated, clean the pressure limiting
valve
• Pressure limiting valve does not close
No pressure build up in the main line
Pressure-relief valve does not close
• Clean or replace the pressure-relief valve. Only
use original SKF spare parts
Impermissible lubricant, see technical data)
• Remove the lubricant from the entire system
and dispose of lubricant properly; fill system
with suitable lubricant
Fill level too low
• Top up the lubricant

SKF MKU Series Specifications

General

Brand	SKF
Model	MKU Series
Category	Water Pump
Language	English