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MAINTENANCE

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SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

•Only qualified personnel should perform this maintenance.

•Turn the input power OFF at the disconnect switch or fuse box before working on this equipment.

•Do not touch electrically hot parts.

WARNING

To avoid receiving a high frequency shock, keep the TIG torch and cables in good condition.

OVERLOAD PROTECTION

THERMOSTATIC PROTECTION

This welder has thermostatic protection from excessive duty cycles, overloads, loss of cooling, and high ambi- ent temperatures. When the welder is subjected to an overload or loss of cooling, a thermostat will open. This condition will be indicated by the illumination of the yel- low Thermostatic Protection Light on the case front (see Figure 3). The fan will continue to run to cool the power source. No welding is possible until the machine is allowed to cool and the Thermostatic Protection Light goes out.

FAN AS NEEDED (F.A.N.)

The Square Wave TIG 275 has the F.A.N. circuit fea- ture, which means the cooling fan will operate only while welding; then for about 6 minutes after welding has stopped. The cooling fan will operate continuous- ly if the yellow Thermostatic Protection Light in “ON”. (See Design Features and Advantages Section)

ROUTINE AND PERIODIC MAINTENANCE

Very little routine maintenance is necessary to keep your Square Wave TIG 275 running in top condition. No specific schedule can be set for performing the fol- lowing items; factors such as hours of usage and machine environment should be considered when establishing a maintenance schedule.

1.Periodically blow out dust and dirt which may accu- mulate within the welder using an air stream.

2.Inspect welder output and control cables for fraying, cuts, and bare spots.

3.Inspect the spark gap at regular intervals to main- tain the recommended spacing. See the Service Procedures Section for complete information on spark gap settings.

4.The fan motor has sealed ball bearings which require no maintenance.

SERVICE PROCEDURES

WARNING

Use extreme caution when working with the secondary circuit of the high frequency transformer. Turn the input power off using the disconnect switch or fuse box before working inside the machine. This is particularly important when working on the secondary circuit of the high voltage transformer (T3) because the output volt- age is dangerously high.

DO NOT APPLY POWER TO THE SQUARE WAVE TIG 275 WITH THE SIDES AND ROOF REMOVED. The case front and case back assemblies tend to lean in towards the center assembly; there is a danger of a short circuit when this occurs. If you must troubleshoot the machine with power applied, do so with the roof in place, and check for shorts before applying power.

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Operation of the Square Wave TIG 275 should be trou- ble-free for the life of the machine. Should a malfunc- tion occur, however, the following procedures will be useful to trained service personnel with experience in repairing arc welding equipment.

SQUARE WAVE TIG 275

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Lincoln Electric IM609-B manual Maintenance, Overload Protection, Service Procedures
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IM609-B specifications

The Lincoln Electric IM609-B is a cutting-edge welding machine that stands out for its advanced features and robust design, making it an essential tool for both professionals and hobbyists alike. This multi-process inverter welder excels in delivering high performance across various welding methods, including MIG, TIG, and stick welding. The versatility of the IM609-B allows users to tackle diverse welding applications, ensuring adaptability in different work environments.

One of the standout features of the IM609-B is its lightweight and compact design, which enhances portability without compromising on power output. Weighing only around 40 lbs, this machine is designed for easy transport between job sites, making it ideal for mobile welders who need to work in various locations. The durable construction also ensures reliability and longevity, further enhancing its appeal.

In terms of technology, the IM609-B incorporates Lincoln Electric's advanced inverter technology. This feature not only ensures a smooth and stable arc but also enhances energy efficiency. The machine operates on both 120V and 230V input power, providing the flexibility needed for different power sources. The digital display allows for precise adjustments on the go, ensuring that users can optimize their settings for specific welding tasks.

User-friendliness is another characteristic that sets the IM609-B apart from its competitors. The intuitive control panel is designed for easy navigation, allowing users to quickly adjust parameters such as voltage, wire feed speed, and amperage. This ease of use is particularly beneficial for those new to welding, as well as experienced welders who require efficient operation.

Safety features are also paramount in the design of the IM609-B. The machine includes built-in thermal overload protection, ensuring that it operates within safe temperature ranges to prevent damage during extended use. Additionally, the fault detection system alerts users to any operational issues, allowing for quick troubleshooting and reducing downtime.

In conclusion, the Lincoln Electric IM609-B is a formidable welding machine that combines versatility, portability, and advanced technology. Its multi-process capabilities, lightweight design, and thoughtful features make it an excellent choice for a wide range of welding applications. Whether for professional use or home projects, the IM609-B delivers exceptional performance that meets the demands of modern welders.
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