Possible cause
Measure
Where can I get help?
SW
KS
Oil separator cartridge heavily
clogged.
Measure the pressure differen‐
tial and change the cartridge if
greater than 1 bar. Change, see
–
X
Compressor oil filter cartridge
clogged.
Change, see chapter 10.4.4.
–
–
Compressor cooling oil level too
low.
Replenish, see chapter 10.4.2.
–
–
Oil pipes leaking.
Seal leaks or have pipes
changed.
X
X
Liquid cooling of the drive en‐
gine defective.
Have it repaired.
X
X
Cooling air blower defective.
Have it repaired.
X
X
Sediments in the coolant cooler. Clean the coolant cooler from
inside, see chapter 10.3.1.
–
–
Ambient temperature too high.
See installation conditions in
–
–
SW = Specialised workshop; KS = KAESER SERVICE
Tab. 82 Fault: machine overheating
9.3.5 Too much oil residue in the compressed air
Possible cause
Measure
Where can I get help?
SW
KS
Oil separator cartridge oil return
line of compressor clogged.
Clean the oil separator cartridge
dirt trap or replace the strainer
and nozzle if necessary. See
–
X
Cracked oil separator cartridge. Change, see chapter 10.4.6.
–
–
Oil level in the oil separator tank
too high.
Reduce to maximum level, see
–
–
SW = Specialised workshop; KS = KAESER SERVICE
Tab. 83 Alarm: "Too much oil residue in the compressed air"
9.3.6 Oil flows from the compressor air filter after shutdown
Possible cause
Measure
Where can I get help?
SW
KS
Defective non-return function of
the inlet valve.
Repair or have it replaced if
necessary.
–
X
SW = Specialised workshop; KS = KAESER SERVICE
Tab. 84 Alarm: "Oil flows from the compressor air filter after shutdown"
9
Fault Recognition and Rectification
9.3
Analysing compressor faults and alarms
90
Operating Manual Portable Rotary Screw Compressor
MOBILAIR M27 PE
No.: 9_9548 22 HCE