9 Fault Recognition and Rectification
9.1 Basic instructions
The following tables are intended to assist in fault finding and rectification.
1. Do not attempt fault rectification measures other than those given in this manual!
2. In all other cases:
Have the fault rectified by an authorized HPC service representative.
Further information Observe the instructions in chapter 3 "Safety and Responsibility" and prevailing local safety regula‐
tions when rectifying faults and malfunctions.
Comply also with local applicable safety provisions!
9.2 Evaluating engine faults and alarms
9.2.1 Engine stops or fails to start
Possible cause
Action
Where can I get help?
SW
KS
Starter faulty.
Replace starter.
X
–
The fuel cut-off device has not
opened.
Check the coil and electrics and
replace if necessary.
X
–
Fuel tank empty.
Fill the fuel tank.
–
–
Air pockets in fuel line between
fuel tank and injection pump.
Bleed the fuel line, see chap‐
–
–
Fuel filter clogged.
Clean or replace, see chap‐
X
X
Fuel line broken.
Replace.
X
X
Control fuse or relay fault.
Check. Replace if necessary.
X
X
Discharge temperature too high. Adjust.
–
X
Defective temperature gauge
switch giving no enable signal
Repair or replace if necessary.
–
X
Ignition switch defective.
Repair or replace if necessary.
–
X
Electrical connections and/or ca‐
ble loose or broken.
Tighten. Replace cables if nec‐
essary.
X
X
The battery is electrically isola‐
ted from the on-board power
supply.
Set the battery isolating switch
(option) to the “I” position, see
–
–
Battery faulty or charge too low. Maintain battery, see chap‐
–
–
Engine alternator faulty.
Repair or replace if necessary.
X
X
Defective alternator regulator.
Check regulator. Replace if nec‐
essary.
X
X
SW = specialist workshop; KS = KAESER SERVICE
9
Fault Recognition and Rectification
9.1
Basic instructions
86
Operating Manual Portable Rotary Screw Compressor
MOBILAIR M27 PE
No.: 9_9548 22 HCE
