Possible cause
Remedy
Where can I get help?
SW
KS
Venting valve does not close.
Check the connections and
function and have repaired or
replaced as necessary.
–
X
Engine does not run at maxi‐
mum speed (in LOAD mode).
X
X
Engine air filter and/or compres‐
sor air filter clogged.
Clean or change, see chap‐
–
–
Oil separator cartridge heavily
clogged.
Change, see chapter 10.4.6.
–
–
SW = specialised workshop; KS = KAESER SERVICE
Tab. 76 Fault: working pressure too low
9.3.3 Pressure relief valve blowing off
Possible cause
Remedy
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, the control
air line and the inlet valve and
replace if necessary.
–
X
Pressure relief valve maladjus‐
ted and/or leaking.
Adjust or have replaced if nec‐
essary.
–
X
SW = specialised workshop; KS = KAESER SERVICE
Tab. 77 Fault: pressure relief valve blowing off
9.3.4 Machine overheating
Possible cause
Remedy
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‐
–
–
The working element of the ther‐
mostatic valve not workingl.
Have repaired or replaced if
necessary.
–
X
Working pressure too high (pro‐
portional controller maladjus‐
ted).
Reset to the permissible value
or have replaced.
–
X
SW = specialised workshop; KS = KAESER SERVICE
9
Fault Recognition and Rectification
9.3
Analysing compressor faults and alarms
86
Operator manual Portable compressor
M 64
No.: 9_5898 26 E
RAMIRENT
