9.4.4 Machine overheating
Possible cause
Remedy
Where can I get help?
Specialised
workshop
KAESER Ser‐
vice
Defective cooling fan.
Have the blades or the complete
fan wheel replaced.
–
X
Oil cooler clogged.
Clean surface, see chapter 10.6.
–
–
Defective working element in the
combination valve.
Have repaired or replaced if nec‐
essary.
–
X
Oil separator cartridge heavily
clogged.
Measure the pressure differential
and change the cartridge if great‐
er than 1 bar (see chap‐
–
X
Compressor oil filter clogged.
–
–
Compressor cooling oil level too
low.
–
–
Oil pipes leaking.
Seal leaks or have pipes
changed.
X
X
Engine cooling system or cooling
fan defective.
Have repaired.
X
X
Ambient temperature too high.
See installation conditions in
–
–
Tab. 77 Fault: machine overheating
9.4.5 Too much oil residue in the compressed air
Possible cause
Remedy
Where can I get help?
Specialised
workshop
KAESER Ser‐
vice
Oil separator cartridge scavenge
line clogged.
Clean the strainer in the separa‐
tor cartridge dirt trap or have
changed if necessary.
–
X
Fractured oil separator cartridge. Change, see chapter 10.5.6.
–
–
Oil level in the oil separator tank
too high.
Reduce to maximum level, see
–
–
Tab. 78 Fault: too much oil residue in the compressed air
9
Fault Recognition and Rectification
9.4
Compressor faults and alarms
No.: 9_6975 00 E
Service Manual Screw Compressor
M135 SIGMA CONTROL MOBIL
93