HPC MOBILAIR M27 PE, Operating Manual

Page: 101 / 312

Possible cause Measure Where can I get help?
SW
KS
Venting valve blowing off. Check the connections and
function and have it repaired or
replaced as necessary.
– X
Engine does not run at maxi‐
mum speed (in LOAD mode).
See chapter 9.2 X X
Engine air filter and/or compres‐
sor air filter clogged.
Clean or change, see chap‐
ters 10.3.2 and 10.4.7.
– –
Oil separator cartridge heavily
clogged.
Change, see chapter 10.4.6. – –
SW = Specialised workshop; KS = KAESER SERVICE
Tab. 80 Fault: working pressure too low
9.3.3 Safety valve blows off
Possible cause Measure Where can I get help?
SW
KS
Oil separator cartridge heavily
clogged.
Change, see chapter 10.4.6. – –
Inlet valve does not close. Check the controller, control line
and inlet valve and replace if
necessary.
– X
Safety valve maladjusted and/or
leaking.
Adjust or have it replaced if nec‐
essary.
– X
SW = Specialised workshop; KS = KAESER SERVICE
Tab. 81 Fault: safety valve blowing off
9.3.4 Machine overheating
Possible cause Measure Where can I get help?
SW
KS
Defective cooling fan. Have the blades or the complete
fan wheel replaced.
– X
Oil cooler surface clogged. Clean surface, see chap‐
ter 10.5.
– –
The working element of the ther‐
mostatic valve not working.
Have it repaired or replaced if
necessary.
– X
Working pressure too high (pro‐
portional controller maladjus‐
ted).
Reset to the permissible value
or have it replaced.
– X
SW = Specialised workshop; KS = KAESER SERVICE
9 Fault Recognition and Rectification
9.3 Analysing compressor faults and alarms
No.: 9_9548 22 HCE
Operating Manual Portable Rotary Screw Compressor
MOBILAIR M27 PE
89