Maintenance

D-1	MAINTENANCE	D-1

SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

•Disconnect input power by removing plug from receptacle before working inside SP-135 PLUS. Use only grounded recep- tacle. Do not touch electrically “hot” parts inside SP-135 PLUS.

•Have qualified personnel do the maintenance and trouble shoot- ing work.

ITEMS REQUIRING NO

MAINTENANCE

•Drive Motor and Gearbox – Lifetime lubrication

•Fan Motor- Lifetime lubrication.

•Wire Reel Spindle – Do NOT lubricate shaft.

ROUTINE AND PERIODIC MAINTE- NANCE

BEFORE EACH USE

•Check over machine and accessories for any obvi- ous condition that may prevent safe performance or operation, repair or replace items as necessary to correct any abnormal condition.

AFTER 5 MINUTES OF WELDING

or when spatter accumulates in nozzle

•Clean nozzle to avoid bridging between nozzle and contact tip which results in shorted nozzle, poor welds and overheated gun. Hint: Anti-stick spray or gel available from a welding supply distributor may reduce buildup and aid in spatter removal.

AFTER EACH SPOOL OF WIRE FEED

•Remove contact tip and clean inside diameter with short piece of wire

•Clean cable liner – when rough and erratic wire feed- ing occur.

AFTER FEEDING 50# OF FLUX CORED WIRE OR 300# OF SOLID WIRE

•Unplug machine or turn power switch to OFF – “O” position. Remove gun and cable from machine.

•Remove gas nozzle and contact tip from gun.

•Lay cable out straight - blow out gently into gun end with compressed air. Bend cable back and forth – blow out again – Repeat until clean.

WARNING

Excessive pressure at start may cause the dirt to form a plug.

PERIODICALLY AS REQUIRED

•Blow dirt out of the welder with low pressure air to eliminate excessive dirt and dust buildup that could cause welder to run hot.

•Blow dirt out of: Rectifier & Fan Motor Assembly; PC Board located on Case Side Assembly; and Center Assembly components.

•Vacuum accumulated dirt from gearbox and wire feed section.

•Inspect the incoming guide tube and clean inside diameter if necessary. Replace when excessively worn.

•Replace Contact Tip – when hole is enlarged or elongated (refer to “CHANGING THE CONTACT TIP”, in this section).

•Replace gas nozzle.

•Replace Liner – when wire feeding problems occur and other items have been checked (refer to “CHANGING LINER” procedure in this section).

•Replace internal gun handle parts as necessary (see Procedure at the end of this section).

SP-135 PLUS

IM788 specifications

The Lincoln Electric IM788 is a cutting-edge industrial welding inverter known for its advanced features and technologies that enhance productivity and efficiency in various welding applications. This machine is specifically designed to cater to the demands of high-performance environments while maintaining reliability and ease of use.

One of the standout features of the IM788 is its multi-process capability. It offers MIG, TIG, and stick welding options, making it a versatile choice for welders who work with a diverse range of materials and thicknesses. This flexibility enables operators to switch processes seamlessly without compromising on performance, thereby increasing overall productivity.

The IM788 is equipped with Lincoln Electric's exclusive Synchronized Arc Control Technology, which optimizes the arc characteristic for different materials and welding conditions. This technology helps to achieve cleaner and more precise welds, minimizing the need for post-weld finishing. Additionally, the machine offers a broad range of voltage and amperage settings, allowing for fine-tuning based on specific project requirements.

Another significant attribute of the IM788 is its built-in intelligence. The machine incorporates advanced microprocessor control, which enhances user interface capabilities and allows for easy adjustments to welding parameters. The intuitive digital display provides real-time feedback on settings and performance, enabling operators to make informed decisions and adjustments as needed.

Durability is also a key characteristic of the Lincoln Electric IM788. Its hardened metal case ensures protection against harsh working conditions, while internal components are designed to withstand heavy usage. This robust construction not only extends the machine's lifespan but also maintains consistent performance even in demanding environments.

The IM788's compact design and lightweight construction make it portable and easy to transport, allowing welders to move it effortlessly between job sites. Coupled with its energy-efficient operation, this inverter contributes to lower operational costs, making it an economical investment for both small workshops and large industrial operations.

In summary, the Lincoln Electric IM788 stands out for its multi-process capabilities, advanced welding technologies, user-friendly interface, and robust design. These features make it an ideal choice for professionals seeking a reliable and efficient welding solution. Whether for fabrication shops, construction sites, or maintenance applications, the IM788 delivers exceptional performance and versatility, solidifying its position as a leading welding inverter in the market.