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F-52

F-52

TROUBLESHOOTING & REPAIR

POLARITY SWITCH REMOVAL AND REPLACEMENT (continued)

FIGURE F.16 – POLARITY SWITCH WIRING DIAGRAM

 

 

 

 

 

 

 

 

H4 (460V)

 

 

 

 

 

 

 

 

 

 

H3 (230V)

 

 

232A

 

 

232

 

 

 

 

H2 (208V)

 

 

 

 

 

 

 

 

H1

 

 

 

211A

 

R8

211B

 

211

 

 

 

 

T1

 

 

 

 

W 209

W X10 S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18VAC

 

 

 

 

 

 

 

 

 

R 210

B X9

F

 

 

 

 

 

 

 

 

 

 

 

W 221

 

 

 

 

 

 

W 201

W X7

 

S X1

R 222

 

 

 

 

 

 

 

18VAC

78VAC

 

 

 

 

115VAC

 

 

 

W 204

W X8

 

F X2

 

 

 

CB

 

 

 

 

B 232

B X3

 

 

 

 

 

 

 

 

 

232B

115VAC

 

 

 

 

232C

 

CB

 

 

 

 

 

 

 

 

 

 

 

 

SCR1

 

 

 

 

 

 

231B

B X4

 

 

 

 

 

 

 

 

B 231

 

G1

(+)

C7

 

 

 

 

211

X5

 

 

218

POS

 

 

 

 

 

23VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

212

X6

 

 

G2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCR2

 

 

L1

 

 

 

 

 

 

 

 

 

 

 

 

 

POLARITY SWITCH

MICRO SWITCH

 

 

 

 

 

 

AC

A-C, D-E, B-F

OPEN

 

 

 

 

 

 

 

DC+ B-D, C-E, A-F,

G-H CLOSED

 

217

 

 

FRONT GANG

 

DC-

B-D, A-E, C-F,

G-H CLOSED

 

 

 

 

 

 

 

 

MICRO-SWITCH

 

B

 

B

D

 

D2

REAR GANG

 

 

 

 

 

 

S2A

NO

 

G3

 

 

 

 

 

 

 

H

 

SCR3

 

 

E

A

 

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

 

 

G

 

 

 

220

 

 

 

 

 

NEG

 

 

 

(-)

 

C

 

 

 

 

 

312

 

220A

 

POS

 

 

 

 

275C

 

 

SCR4

D1

B

X1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G4

 

 

 

 

 

 

 

 

 

 

 

216

 

X2

 

S2

 

 

 

 

 

 

 

 

NEG

 

POLARITY

 

 

 

(REAR VIEW, SHOWN

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

 

 

 

 

 

 

 

 

IN AC POSITION)

 

 

 

R7

 

 

 

 

 

 

 

 

 

 

 

 

 

252

 

 

 

 

 

 

 

 

 

 

 

 

253

 

 

 

 

 

 

 

 

 

 

 

R6

 

 

 

 

 

 

 

 

 

 

 

BYPASS /

 

 

 

 

 

 

 

247

 

 

 

STABILIZER

 

 

 

 

 

 

 

 

 

 

PC BOARD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

L3

C5

 

 

 

 

 

 

 

115VAC

T2

 

SPARK

T3

 

 

GAP

 

 

F

 

 

 

 

 

 

L4

 

 

 

 

 

 

ARC STARTER AS'BLY

 

 

 

 

 

 

ELECTRODE

WORK

SQUARE WAVE TIG 275

Page 92
Image 92
Lincoln Electric SVM141-A service manual Figure F.16 Polarity Switch Wiring Diagram

SVM141-A specifications

The Lincoln Electric SVM141-A is a cutting-edge solution designed for operators requiring precision, efficiency, and versatility in their welding applications. This machine is known for its compact form but robust feature set, making it an ideal choice for both professional welders and industrial applications.

One of the standout features of the SVM141-A is its advanced inverter technology. This innovation allows for a stable arc, providing consistent results even under varying conditions. The machine minimizes power consumption, making it energy-efficient without compromising performance. The inverter technology also supports a wider input voltage range, making the SVM141-A suitable for use in diverse environments and job sites.

Another key characteristic is its multi-process capability. The SVM141-A supports MIG, stick, and TIG welding processes, providing flexibility for various welding tasks. This versatility enables operators to tackle different materials, including mild steel, stainless steel, and aluminum, making it a valuable tool for numerous projects.

The user-friendly interface of the SVM141-A includes an intuitive digital display, which allows welders to adjust settings with ease. This feature is crucial for ensuring the right configurations for specific welding tasks, reducing the chances of errors and enhancing the overall finish of welds.

Safety is also a priority with the Lincoln Electric SVM141-A. It comes with built-in safety features such as overheat protection and automatic shutdown, ensuring operator safety and equipment longevity. The machine's lightweight design enhances portability, allowing it to be used in various workspaces with ease.

Durability is another hallmark of the SVM141-A. Constructed with high-quality materials, the machine is designed to withstand the rigors of demanding work environments. This ensures reliability over time, providing consistent performance even under heavy use.

In summary, the Lincoln Electric SVM141-A is a versatile, efficient, and user-friendly welding machine that appeals to a wide range of users. Its advanced inverter technology, multi-process capabilities, safety features, and durable construction make it a strong contender in the welding market, suitable for both professionals and hobbyists alike. Whether it’s for light fabrication, repairs, or industrial welding tasks, the SVM141-A meets diverse needs with precision and reliability.