E-4

 

TROUBLESHOOTING

E-4

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

PROBLEMS

POSSIBLE

RECOMMENDED

 

 

(SYMPTOMS)

CAUSE

COURSE OF ACTION

 

 

 

 

 

 

HI-FREQ PROBLEMS

No hi-freq

1. Circuit breaker CB1 open

 

2.

Bad connection at P12 of Control

 

 

PC board

 

3.

Spark gaps shorted

 

4.

Faulty Control PC board

 

 

Hi-freq intensity too weak

1. Dirty spark gap or improper gap

 

 

setting

 

2.

Faulty Arc Starter assembly

 

 

Hi-freq on continuously in DC Tig

1. Bad connection at P11 of Control

 

 

PC board

 

2.

Micro-switch S2A is not engaged &

 

 

disengaged properly when switch-

 

 

ing between DC & AC polarity.

 

 

(S2A locates on the Polarity

 

 

switch)

 

3.

Faulty Control PC board

 

 

Hi-freq shuts off after starting in AC

1. Micro-switch S2A is not engaged &

Tig

 

disengaged properly when switch-

 

 

ing between DC & AC polarity.

 

 

(S2A locates on the Polarity

 

 

switch)

 

 

 

 

 

 

If all recommended possible areas of misadjustment have been checked and the problem persists, Contact your local Lincoln Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

PRECISION TIG 375

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Image 36
Lincoln Electric IM909 manual HI-FREQ Problems

IM909 specifications

Lincoln Electric IM909 is an innovative industrial multi-process inverter welder designed to provide exceptional flexibility, performance, and user-friendly operation for a wide range of welding applications. This versatile machine is suitable for both novice and experienced welders, making it an ideal choice for workshops, fabrication shops, and maintenance operations.

At the core of the IM909 is its multi-process capability, allowing users to perform MIG, TIG, and stick welding operations. This means that a single machine can cater to various welding needs, from thin sheet metal to heavy structural projects, providing great versatility in welding materials like steel, stainless steel, and aluminum. The IM909 is designed to meet the demands of today’s welding professionals, enabling seamless transitions between different welding processes without sacrificing performance.

One of the standout features of the IM909 is its advanced inverter technology. The inverter design not only makes the welder compact and lightweight but also enhances energy efficiency and improves arc stability. This results in better control over the welding process, leading to higher quality welds with reduced spatter. Additionally, the IM909 boasts a wide output range, allowing it to handle various welding thicknesses effectively.

Another significant characteristic of the IM909 is its user-friendly interface. The machine comes equipped with a digital display that provides clear readouts of current settings, making it easy for users to monitor and adjust parameters on the fly. Moreover, the intuitive controls simplify the setup process, streamlining operations for users of all experience levels.

Safety is always a top priority in welding operations, and the IM909 integrates several protective features, including over-temperature protection and circuit breaker safeguards. These elements ensure the durability of the machine and protect both the welder and the equipment from potential hazards.

In conclusion, the Lincoln Electric IM909 multi-process inverter welder stands out as a reliable, efficient, and adaptable welding solution. Its combination of advanced inverter technology, multi-process capabilities, user-friendly operation, and safety features makes it an excellent investment for any welding professional looking for quality and versatility in their equipment. Whether performing intricate fabrication work or tackling heavy-duty welding tasks, the IM909 delivers exceptional performance across a wide range of applications.