Product Manual

TROUBLE-SHOOTING
18/11/08 22250-GB
M
40.2.
1
REV.0 - 11/08
Problem Possible cause Solution
RESISTENCE OF WINDING 110V/230V
1) Adjust the maximum engine spe-
ed as shown on page M34.
Incorrect maximum voltage
under no-load conditions
Engine always at idle speed
1) Replace
Engine always at maximum
speed
1) Incorrect maximum engine
speed
1) Faulty circuit
1) Replace;
2) Check that the resistance of the
solenoid winding is approximately
10 ohm.
Insufficient power during
welding or generation
1) Dirty petrol lter,
dirty air lter,
dirty carburetor.
See engine instruction booklet.
1) faulty circuit
2) Faulty solenoid
1) Engine
Irregular or inconsistent wel-
ding current
1) alt ernator wi ndings not
insulated from earth
2) welding chopper bridge not
insulated from earth
3) power cables not insulated
from earth
4) faulty circuit
1) Disconnect all the outputs; 3 for
welding which go to the chopper
bridge and 4 for auxiliary power
which go to the circuit board.
Use a multimeter to check the
insulation of the alternator;
2) disconnect the 3 welding cables,
the + and - for welding, the black
wire and the connector which
go to the circuit board, Use a
multimeter to check that the
bridge is insulated from the earth.
3) check that the cables inside the
aluminium casting, are properly
insulated;
4) Replace
Ω
(ohm)
NOTE
Output in weld mode
Between green / black cable
Between green / red cable
Between black / red cable
0,011
0,011
0,011
Auxiliary power outputs
Between the black cables
0,300
Auxiliary power outputs
Between the brown cables
0,300
Value measured alternating the cables
OUTPUT
Value measured alternating the cables