KAESER M122 - Pressure Relief Valve Blowing off; Machine Overheating; Tab. 57 Fault: Working Pressure too Low; Tab. 58 Fault: Pressure Relief Valve Blowing off

Possible cause Remedy Where can I get help?
Specialised
workshop
KAESER-ser‐
vice
Venting valve does not close. Check the connections and
function and have repaired or
replaced as necessary.
– X
The engine runs at maximum
speed (LOAD
).
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. – –
Tab. 57 Fault: working pressure too low
9.3.3 Pressure relief valve blowing off
Possible cause Remedy Where can I get help?
Specialised
workshop
KAESER-ser‐
vice
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
Tab. 58 Fault: pressure relief valve blowing off
9.3.4 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 chap‐
ter 10.5.
– –
Defective working element in the
combination valve.
Have repaired or replaced if
necessary.
– X
Gauge working pressure too
high (proportional controller mal‐
adjusted).
Reset to the permissible value
or have replaced.
– X
Oil separator cartridge heavily
clogged.
Measure the pressure differen‐
tial and change the cartridge if
greater than 1 bar. See chap‐
ter 10.4.6 for changing.
– X
9 Fault Recognition and Rectification
9.3 Evaluate compressor faults and alarms
No.: 9_6974 20 E
Service manual Portable compressor
M122
75
RAMIRENT