SKF LINCOLN Centro-Matic P653S Serie Instrucciones De Uso Y Mantenimento página 45

Troubleshooting
Mode of failure
Pump motor does not run. No green right corner segment lit on
display († Fig. 16, page 19).
Pump does not deliver lubricant but runs if manual lube
switch (3) is pushed († Fig. 15, page 18). No green left corner
segment lit on display († Fig. 17, page 19).
LL display is flashing. Reservoir is almost empty.
E1 display is flashing. Pump failed to develop internal
pressure in 12 minutes.
E2 display is flashing. Pump failed to develop pressure at
the end of the line (pump with external pressure switch
or pressure transducer).
E3 display is flashing. Pump failed to vent at pump.
E4 display is flashing. Pump failed to vent at the end of the line
(pump with external pressure switch or pressure transducer).
Grease is coming out of pressure relief valve (6) († Fig. 1, page 6).
Solution
Check power supply and fuses.
Connect ignition or machine switch per electrical schematic on
pages 28 and 29.
Pump with follower - refill reservoir. Pump without follower – refill
reservoir and push switch (3) († Fig. 15) to initiate manual lube cycle.
Push switch (2) († Fig. 15) to acknowledge fault. Initiate manual
lube cycle. Investigate and correct possible causes – air pockets, broken
line, connections leakage, worn pumping element, failed internal
pressure switch or pressure transducer. Initiate manual lube cycle.
Push switch (2) († Fig. 15) to acknowledge fault. Initiate manual lube
cycle. Investigate and correct possible causes – air pockets in lubrication
line, connections leakage, grease consistency changed with low tempera-
tures, failed end of line pressure switch or pressure transducer.
Push switch (2) († Fig. 15) to acknowledge fault. Initiate manual
lube cycle. Investigate and correct possible causes – pump eccentric
did not stop in a proper position, vent valve failed.
Push switch (2) († Fig. 15) to acknowledge fault. Initiate manual
lube cycle. Investigate and correct possible causes – restriction in
lubrication line, grease consistency changed with low temperature,
failed end of line pressure transducer or pressure switch.
Check and adjust setting of pressure transducer or failed
pressure switch.
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