Lincoln Electric RANGER 3PHASE SVM207-A Service Manual page 62

F-24
TEST PROCEDURE
1. Start the engine and run it at high idle (3650 RPM).
2. Set the voltmeter for AC volts and place one meter
probe on each of the two outside leads that attach
to the engine voltage regulator. See Figure F.5 for
location. Check for 42-52 VAC at the voltage reg-
ulator.
3. If the AC voltage is low or not present, the engine
flywheel alternator may be faulty. This is an engine
problem; consult your local engine repair facility.
4. If the voltage reading is correct, then check the out-
put of the voltage regulator to determine the charg-
ing voltage for the battery. Run the engine at high
idle (3650 RPM). Set the voltmeter for DC volts
and place the Positive meter probe on the middle
lead and the Negative probe on the green ground
wire connected to the voltage regulator.
Figure F.5.. The meter should read 13-15 VDC.
TROUBLESHOOTING AND REPAIR
CHARGING CIRCUIT TEST (continued)
FIGURE F.1 – DOOR REMOVAL
See
RANGER® 3 PHASE
Voltage
Regulator
AC Lead
DC Lead
AC Lead
5. If the DC voltage reading is incorrect or not pre-
sent, the voltage regulator may be faulty. Replace
the entire voltage regulator module.
6. If the DC voltage reading is correct, check the
associated wiring and circuitry. See the Wiring
Diagram.
F-24