Lincoln Electric SVM150-A Welder User Manual


 
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TROUBLESHOOTING & REPAIR
F-29 F-29
RANGER 250
STATOR VOLTAGE TESTS (continued)
FIGURE F.10 RECEPTACLE LEAD LOCATIONS
CASE FRONT - REAR VIEW
AMPHENOL 2
AMPHENOL 1
B
B
A
A
C
C
D
D
E
E
F
F
KEY
KEY
G
H
I
J
K
L
M
N
GND C
3E
6F
J100
120/240 V AC
5C
3D
GOLD
J102
SILVER
SILVER
5A
GND G
6E
GOLD
J101
5B
GND D
CB5
3A
3A
3
3E
50 AMP 25 AMP
20 AMP
209
CB7
CB1
212A
212
3D, 32
6
6B
6B
CB6
6F
50 AMP
42
CB8
42A
CB2
6E
15 AMP
20 AMP
GND M
GND L
GND J
GND G
GND D
GND C
GND B
GND A
31
5
5A
5B
5C
5F
5G
5H
5K
5L
GND E
SHUNT
204S
206S
POSITIVE PUTPUT STID
206A
206B
208
208A
208B
NEGATIVE PUTPUT STUD
TEST PROCEDURE
For all tests: Perform the Case Cover Removal
procedure.
To test the 120 VAC winding:
1. Connect the volt/ohmmeter probes to either
120 VAC receptacle as follows. See Figure
F.10 and the Wiring Diagram.
Upper receptacle, to leads #3D and #5A.
Lower receptacle, to leads #6E and 5B.
NOTE: It is easier to insert the probes directly
into the receptacle to perform this test. However,
the probes may not reach in far enough to make
or keep a good connection. In this case, before
you start the engine, insert two test pins into the
receptacle. Hold the test probes against these
inserts to measure voltage (Step 3).
2. Start the engine and run it at high idle (3700
RPM).
3. Check the AC voltage reading. It should read
between 118 and 126 VAC.
To test the 240 VAC winding:
1. Connect the volt/ohmmeter probes to leads
#6F and #3E where they connect to the
240VAC receptacle.
NOTE: It is easier to insert the probes directly
into the receptacle to perform this test. However,
the probes may not reach in far enough to make
or keep a good connection. In this case, before
you start the engine, insert two test pins into the
receptacle. Hold the test probes against these
inserts to measure voltage (Step 3).
2. Start the engine and run it at high idle (3700
RPM).
3. Check the AC voltage reading. It should read
between 236 and 252 VAC.