Lincoln Electric RANGER 250 SVM150-A Service Manual page 113

F-63
ENGINE/STATOR/ROTOR REMOVAL AND REPLACEMENT (continued)
AMPHENOL 2
B
A
KEY
Stator Lead Disconnection
Refer to Figure F.28.
NOTE: Use diagonal cutters to cut any cable ties
necessary to free the leads as described below.
1. With two 1/2" wrenches remove heavy flex
leads W1, W2, and W3 and their bolts, lock
washers and flat washers from the straps on
the left side of the output rectifier plates. See
Figure F.25.
2. Remove field winding leads #7 and #9 from
the field rectifier bridge. See Figure F.9.
3. Disconnect lead #41 from its in-line coupling.
4. Using a 3/8" deep socket or wrench, remove
leads #5 and GND E from the bottom ground
stud on the case front.
Diagram.
TROUBLESHOOTING & REPAIR
FIGURE F.28 – STATOR LEADS (FRONT PANEL)
START BUTTON SWITCH - S2
IDLER SWITCH - S4
251
211
250
210A
211A
210B
210C
OUTPUT CONTROL
77 76
WELD TERMINALS
208A
(CONTACTOR) SWITCH - S3
WIRE FEEDER
VOLTMETER
SWITCH - S5
21
4
206A
2A
4A
2 277 276 275
GND C
AMPHENOL 1
C
B
C
A
J100
D
D
L
J K 3E
120/240 V AC
E
M
E
N
I
F
F
G
H
5C
KEY
208
208A
208B
NEGATIVE OUTPUT STUD
CASE FRONT - REAR VIEW
See the Wiring
RANGER 250
RUN STOP
HOUR METER
SWITCH - S1
PCB7
BATTERY
221 (KOHLER ONLY)
+
DISPLAY
J34
212
5J (KOHLER ONLY)
229
228
1
224 224B 5G
210
210A PCB6 1
230
THERMAL
J33
DISPLAY
231
R1
10K
75
WELD MODE SWITCH - S6
C1
ARC CONTROL
214
222
R2
218
10K
220
50 AMP 25 AMP
3D
3
209
3A
GOLD
CB7
CB5
J102
212A
3E
SILVER
212
6F
GND G
5A
6
42
6E
6B
CB6 CB8
GOLD
6F
J101 42A
SILVER 50 AMP 15 AMP
GND D 5B
SHUNT
POSITIVE OUTPUT STUD
204S 206S
5. Remove lead #42 from circuit breaker CB8.
6. Remove stator auxiliary winding lead #6 from
circuit breaker CB6 and lead #3 from circuit
breaker CB5. These leads pass through the
toroid. For reassembly, note the number of
turns and direction through the toroid for
each lead. See the Wiring Diagram.
7. Separate and remove lead #5H, #201, #200A
and #200 at their piggy-back connections at
the brush holder. See the Wiring Diagram.
8. Disconnect plug J51 (Engine Connector
Block).
9. Using the 1/2" wrench, disconnect the engine
ground lead (GND J) at the engine foot. This
is the small lead that runs to the top ground
stud on the case front.
5J
POS. 1 CV WIRE
1 2
POS. 2 PIPE
3
POS. 3 CC STICK
4
POS. 4 TOUCH START TIG
GND M
GND L
GND J
GND G
GND D
GND C
GND B
20 AMP
GND A
3A
31
CB1
5
5A
3D, 32 5B
5C
5F
6B
5G
5H
CB2
5K GND E
5L
6E
20 AMP
206A
206B
F-63