9. Failures
Table 2 gives an overview of possible malfunctions and their causes.
If you are unable to rectify the malfunction, please contact SKF Ser-
vice Center.
WARNING!
Working on products that have not been disconnected from the
power supply can cause serious injury or death to persons. Ins-
tallation, maintenance, and repair work may only be carried out
by qualiied experts on products that are not connected to a
power supply. The supply voltage must be turned off before any
product components are opened.
WARNING!
Centralized lubrication systems are under pressure when they
are being operated. Centralized lubrication systems must there-
fore be depressurized before starting installation, maintenance,
or repair work and before making any changes to the system.
Table 2
Failure analysis and remedy
Problems
Possible cause
Remedy
No lubricant discharged from
injector
Problem with connection
Check the tightness of the seal on the line and the connectors
Minimum lubricant level for the feed pump
reached
Check the lubricant level in the feed pump and reill if necessary
A piston is not working
No pneumatic feed
Check the connection on the pneumatic feed
Check the pneumatic pressure and adjust if necessary
Defective solenoid valve
Check the solenoid valve is functioning correctly and if necessary replace
it.
Defective sensor
Check the sensor is functioning correctly and replace if necessary
The carriage is blocked
Defective piston
Check the piston functions correctly
Mechanical blockage
Manually move the carriage to check that no external elements are
blocking it. Remove any foreign element that could prevent the carriage
from working correctly.
Check that the rail and the linear bearing guide function correctly.
No pressure in the system
Zero pneumatic pressure
Check that the pneumatic feed valve is open and open if necessary.
Check the pneumatic pressure and adjust if necessary
Lubricant leak on the roller nipples Incorrect head-nipple alignment
Check the alignment and make adjustments as necessary
Deformed or damaged nipples on rollers
Replace the nipples
No lubrication
Nipple blocked (old conveyor or unit in
extreme temperatures)
Clean or replace the nipples
Check the other nipples at the same time.
Injector illed incorrectly.
Check that the grease has no air bubbles
Check that the feed pump and the injector function correctly.
NOTE
You must not dismantle the product or parts of the product
during the warranty period. Doing so invalidates all warranty
claims.
All other work relating to installation, maintenance, and repair
must only be carried out by SKF Service.
Only original SKF spare parts may be used. It is prohibited for
the operator to make alterations to the product or to use non
original spare parts and resources.
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