9. Faults Page 26
EN
9. Faults
Table 6 provides an overview of possible
malfunctions and their causes. Contact the Service
department of SKF Lubrication Systems Germany
AG if you cannot remedy the malfunction.
Danger!
Performing work on an energized pump or
product may result in serious injury or
death. Assembly, maintenance, and repair
work may only be performed on products
that have been de-energized by qualified
technical personnel. The supply voltage
must be switched off before opening any
of the product's components.
Danger!
Centralized lubrication systems are
pressurized during operation. Centralized
lubrication systems must therefore be
depressurized before starting assembly,
maintenance or repair work, or any
system modifications or system repairs.
Dismantling of the product or individual
parts thereof within the statutory warranty
period is not permitted and voids any
claims.
All assembly, maintenance and repair work
beyond this scope must be performed by
the Service department of SKF Lubrication
Systems Germany AG.
Only original spare parts from SKF
Lubrication Systems Germany AG may be
used. Unauthorized alterations to products
and the use of non-original spare parts
and accessories are not permitted.
Table 6. Fault analysis and rectification
Malfunction Possible cause Rectification
Driver pin is broken
Seals in the actuating cylinder
are defective
Power transmission
from the actuating
mechanism to the
piston pump is
interrupted
Return spring is broken
Disassemble the piston pump in observance of the
safety instructions and replace the broken components.
Too little lubricant in lubricant
reservoir
Top up lubricant; check float switch, if installed
Wrong lubricant Remove lubricant from entire system and dispose of
lubricant properly; fill system with suitable lubricant
and vent system.
Air in the system Vent the system until lubricant without bubbles
discharges at the lubrication points.
For all other work, relieve pressure in the centralized lubrication system and the
actuating cylinder on pneumatically or hydraulically actuated piston pumps.
Pressure regulating valve does
not work
Check the pressure regulating valve for contamination
and damage, clean or replace as necessary.
Pressure relief valve does not
close
Check the pressure relief valve for contamination and
damage, clean or replace as necessary.
Piston pump does not
deliver medium
No pressure build-up
Discharge or suction valves do
not close.
Remove and inspect the valves, clean or replace as
necessary.
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