Manuals / Lincoln Electric / Power Tools / Welder

Lincoln Electric SVM128-A service manual HOW to Eliminate AIR from the Fuel System

Models: SVM128-A

1 111
Download 111 pages 62.71 Kb
Page 39
Image 39

D-5

D-5

MAINTENANCE

Return to Section TOC

Return to Section TOC

HOW TO ELIMINATE AIR FROM THE FUEL SYSTEM

There are two methods to eliminate air from the fuel system according to the type of pump fitted:

See Figure D.3. The standard method is used where the fuel injection pump has vent screws 4 and 5.

The self-vent method is used where the fuel injection pump has a self-vent feature. Vent screws are not fit- ted to these pumps. No connections or plugs need to be released to eliminate air from the fuel system.

If air enters the fuel system, it must be eliminated before the engine can be started.

Air can enter the system if:

•The fuel tank is drained during normal operation.

•The low-pressure fuel pipes are disconnected.

•A part of the low-pressure fuel system leaks during engine operation.

In order to eliminate air from the fuel system, proceed as follows:

Standard method

1.See Figure D.3. Loosen the banjo connection bolt which is fitted on the top of the filter (1).

2.See Figure D.3. Operate the priming lever on the fuel lift pump (2) until fuel, free from air, comes from the filter vent point. Tighten the banjo connection bolt. If the drive cam of the fuel lift pump is at the point of maximum cam lift, it will not be possible to operate the priming lever. In this situation, the crankshaft must be turned one revolution.

3.See Figure D.3. Where the fuel filter is fitted lower than the fuel injection pump, loosen the inlet con- nection at the fuel injection pump (3) and operate the lift pump to remove any air. Tighten the inlet connection.

4.Ensure that the manual stop control is in the “run” position. If an electrical stop control is used, turn the start key to the “R” position.

5.See Figure D.3. Loosen the vent screw in the lock screw of the hydraulic head (4) and the vent screw on the governor cover of the fuel injection pump (5).

6.Operate the priming lever of the fuel lift pump until fuel, free from air, comes from the vent screw(s). Tighten the vent screw(s).

Return to Master TOC

Return to Master TOC

FIGURE D.3 – ELIMINATING AIR FROM THE FUEL SYSTEM

Return to Section TOC

Return to Master TOC

1

2

3

5

4

Return to Section TOC

Return to Master TOC

SA-250

Page 38 Page 40
Page 39
Image 39
Lincoln Electric SVM128-A service manual HOW to Eliminate AIR from the Fuel System
Page 38 Page 40

SVM128-A specifications

The Lincoln Electric SVM128-A is a cutting-edge welding machine designed to meet the demands of both professional welders and DIY enthusiasts. This versatile welding power source brings together advanced technology and robust design, making it a reliable choice for various welding applications.

One of the standout features of the SVM128-A is its capability to perform multiple welding processes. It supports MIG, TIG, and stick welding, allowing users to tackle a wide range of projects with ease. This multi-functionality makes it ideal for professionals working in different industries, as well as for hobbyists who enjoy diverse welding tasks.

The SVM128-A is equipped with inverter technology, which enhances its performance by providing a more stable arc and improved energy efficiency. This technological advancement contributes to lower operational costs and allows for a more consistent weld quality across different materials and thicknesses. Additionally, the inverter technology enables the machine to be lightweight and portable, making it convenient for jobs that require mobility.

Another prominent characteristic of the SVM128-A is its user-friendly interface. The machine features intuitive controls and a digital display that allows operators to easily set the desired welding parameters. This simplified setup helps reduce the learning curve for new users while also offering precise control for experienced professionals.

The Lincoln Electric SVM128-A is designed with durability in mind. Its robust construction ensures that it can withstand the rigors of frequent use in demanding environments. The machine is also equipped with various safety features, including thermal overload protection and a duty cycle rating that prevents overheating, ultimately extending its lifespan.

For optimal performance, the SVM128-A provides adjustable output options, allowing users to customize the welding parameters based on their specific needs. This flexibility makes it suitable for welding various metals, including steel, aluminum, and stainless steel.

In summary, the Lincoln Electric SVM128-A combines versatility, advanced technology, and a user-friendly design. With its capability to perform multiple welding processes, lightweight construction, and durable features, it stands out as an excellent option for anyone looking to achieve high-quality welds. Whether for professional or personal use, the SVM128-A is poised to deliver reliable performance and exceptional results.