SKF KFA1 series User Manual

10. Malfunctions Page 53
EN
10. Malfunctions
10.1. Fault indications on piston pump
units without control unit
10.1.1. Piston pump units without fill level
monitoring (KFA..)
These piston pump units are not equipped with a
display function for faults. Operational malfunctions
can only be detected by external monitoring (visual
or sensory).
10.1.2. Piston pump units with integrated fill
level monitoring (KFA..-W)
When using these piston pump units, an insufficient
fill level in the lubricant reservoir is indicated by a
signal issued via one of the electrical connectors.
( Chapter 4.4, "Electrical connection")
10.2. Fault analysis and rectification
 Table29 provides an overview of possible
malfunctions and their causes. Contact the Service
department of SKF Lubrication Systems Germany
GmbH if you cannot remedy the malfunction.
Table 29 Fault analysis and rectification
Malfunction
Possible cause
Rectification
Electric motor does
not start.
No operating voltage at the
motor, pump
blocked.
KFAS
Check electrical connection.
Pump does not
convey lubricant; no
pressure build-up
Insufficient fill level.
Top up lubricant ( Chapter 6.2, "Filling the lubricant
reservoir").
Check fill level switch, if installed.
Wrong lubricant,
( Chapter 2 "Lubricants").
Replace lubricant in the entire centralized lubrication system;
beforehand, remove all old lubricant and dispose of it properly.
Air in the centralized lubrication
system.
Vent centralized lubrication system. The lubricant must
discharge without bubbles at the lubricant outlet ( Chapter
6.3, "Vent centralized lubrication system").
During operation, the
lubrication points are
supplied insufficiently
or not at all.
Metering volume too low.
Reduce interval time.
Air in the centralized lubrication
system.
Vent centralized lubrication system. The lubricant must
discharge without bubbles at the lubricant outlet ( Chapter
6.3, "Vent centralized lubrication system").
Main lubricant line too long,
cross-section too small
(pressure regulating valve
opens).
Check the lubricant transport through the main lubricant line
and, if required, relocate the piston pump unit.
Wrong lubricant,
( Chapter 2 "Lubricants").
Replace lubricant in the entire centralized lubrication system;
beforehand, remove all old lubricant and dispose of it properly.
Lubrication line leaky.
Check connections.
Piston pump unit worn out.
Replace entire piston pump unit.
Progressive distributor
defective.
Replace entire piston pump unit.

SKF KFA1 series Specifications

General

Brand	SKF
Model	KFA1 series
Category	Water Pump
Language	English