Manuals / Lincoln Electric / Power Tools / Welder

Lincoln Electric SVM160-B Lead Disconnection, Main Transformer and Choke Assembly Removal

Models: SVM160-B

1 126
Download 126 pages 30.94 Kb
Page 92
Image 92

Section TOC

Master TOC

F-48

F-48

TROUBLESHOOTING & REPAIR

MAIN TRANSFORMER AND OUTPUT CHOKE REMOVAL AND

REPLACEMENT (continued)

Return to

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to

Return to Master TOC

Return to Master TOC

Return to Master TOC

LEAD DISCONNECTION

8.Using a phillips head screwdriver, remove fan lead X4 from fan relay terminal #1 and disconnect fan lead X3 from its in-line connector at the fan motor. Cut cable ties as needed pull the leads through the baffles to clear them.

9.Using a 1/2 in. wrench, disconnect leads X1 and X2 from the output rectifier. Note the order of the fas- teners for reassembly: bolt, flat washer, heavy lead, terminal, lock washer, nut.

10.Disconnect leads X5 and X6 from the control recti- fier (spade connectors).

11.Disconnect thermostat leads 502 and 503A from their in-line connectors (right side of the machine).

12.Using a 3/8 in. nutdriver, disconnect leads H2, H3, and H5 from the reconnect panel terminals 2, 3, and 5.

13.Using a 3/8 in. driver, disconnect leads H1 and H4 from the back of the line switch. Looking at the back of the switch, H1 is at the bottom right and H4 is at the bottom left. Note that leads H1 and H4, which go to the reconnect panel, attach at these same terminals.

14.Using a 1/2 in. wrench and socket wrench, discon- nect heavy lead B2 from the choke.

15.Using a 9/16 in. wrench and socket wrench, dis- connect the heavy lead from the choke to the pos- itive output terminal. It is not necessary to remove any other leads; screw the bolt with leads still attached back into the positive output terminal until reassembly.

MAIN TRANSFORMER AND CHOKE ASSEMBLY REMOVAL

16.Using a 1/2 in. socket wrench, remove 4 nuts and lock washers that hold the main transformer to the machine base. Also remove the 4 in. bolts from underneath.

17.Using a 5/16 in. nutdriver, remove the 2 screws that hold the right and left transformer baffle in place (1 screw each). The center assembly and rear

assembly can now be lifted enough to allow the main transformer and choke assembly to be removed.

18.With the help of an assistant, lift the front of the center assembly and slide the main transformer and choke assembly out through the front of the machine. Use care -- the assembly is very heavy.

REPLACEMENT PROCEDURE

For lead reassembly steps, also see the Wiring Diagram.

1.With the help of an assistant, carefully slide the new transformer/choke assembly into place. Attach it to the machine base with 4 bolts, lock washers, and nuts.

2.Attach the right and left transformer baffles to the machine base (1 screw each side).

3.Connect the heavy lead from the top of the choke to the positive output terminal.

4.Connect heavy lead B2 to the choke.

5.Connect leads H1 and H4 to the back of the line switch. See disassembly step for details.

6.Connect leads H2, H3, and H5 to the reconnect panel.

7.Connect thermostat leads 502 and 503A at their in- line connectors (right side of the machine).

8.Connect leads X5 and X6 to the control rectifier (spade connectors).

9.Connect leads X1 and X2 to the output rectifier. Note the order of the fasteners: bolt, flat washer, heavy lead, terminal, lock washer, nut.

10.Connect fan lead X4 to fan relay terminal 1 and fan lead X3 at its in line connector at the fan motor.

11.Install the case front assembly. Connect plug J34 and mount the line switch.

12.Install new cable ties as needed.

13.Install the case sides and top.

POWER MIG 300

Page 91 Page 93
Page 92
Image 92
Lincoln Electric SVM160-B service manual Lead Disconnection, Main Transformer and Choke Assembly Removal
Page 91 Page 93

SVM160-B specifications

The Lincoln Electric SVM160-B is a standout model in the realm of portable arc welders, designed specifically for light to medium-duty welding tasks. As part of Lincoln Electric’s renowned line of welding equipment, the SVM160-B combines efficiency with durability, catering to both professional welders and hobbyists alike.

One of the primary features of the SVM160-B is its lightweight and compact design. Weighing in at just around 60 pounds, it offers excellent portability, allowing users to easily transport the unit to various job sites. This mobility is enhanced by an integrated handle and a rugged construction, making it suitable for both indoor and outdoor applications.

The SVM160-B utilizes advanced inverter technology, which significantly enhances its performance capabilities. This technology not only contributes to the welder's energy efficiency but also allows for a more stable arc, reducing spatter and resulting in cleaner welds. The machine can operate on both 120V and 240V power sources, providing flexibility for users to adapt to different settings and requirements.

Among its key characteristics, the SVM160-B features a welding output range that accommodates various welding needs, allowing users to achieve welds from 20 to 160 amps. This versatility makes it ideal for welding different materials, including mild steel, stainless steel, and aluminum. Furthermore, the unit supports a range of welding processes, including MIG, stick, and TIG welding, enhancing its adaptability for various projects.

Another highlight of the SVM160-B is its user-friendly interface. The control panel is designed to facilitate ease of use, with clearly marked dials and indicators that enable quick adjustments of settings. This intuitive design ensures that both novice and experienced users can operate the machine efficiently and effectively.

Safety features are also a crucial aspect of the SVM160-B. It comes equipped with thermal overload protection, which prevents the unit from overheating during extended use. This built-in safeguard extends the welder's lifespan and enhances user safety.

In summary, the Lincoln Electric SVM160-B is a versatile, portable welder that combines advanced technology with user-friendly features, making it an excellent choice for a wide range of welding applications. Its lightweight design, inverter technology, and robust safety features make it a reliable option for both professionals and enthusiasts. Whether tackling small repairs or larger projects, the SVM160-B stands ready to deliver quality results.