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D-3

MAINTENANCE

D-3

BEARING MAINTENANCE

To seat the slip ring brushes, position the brushes in

 

 

This welder is equipped with a double-shielded ball bearing

place. Then slide one end of a piece of fine sandpaper

between slip rings and brushes with the coarse side

having sufficient grease to last indefinitely under normal ser-

against the brushes. Pull the sandpaper around the cir-

vice. Where the welder is used constantly or in excessively

cumference of the rings, in direction of rotation only -

dirty locations, it may be necessary to add one-half ounce of

until brushes seat properly. In addition, stone slip ring

grease per year. A pad of grease one inch wide, one inch

with a fine stone. Brushes must be seated 100%.

long and one inch high weighs approximately one-half

 

 

 

 

ounce. Over greasing is far worse than insufficient greasing.

Arcing or excessive exciter brush wear indicates a pos-

 

 

When greasing the bearings, keep all dirt out of the area.

sible misaligned shaft. Have an authorized

Field

Service Shop check and realign the shaft.

 

 

Wipe the fittings completely clean and use clean equipment.

 

 

 

 

 

 

More bearing failures are caused by dirt introduced during

COOLING SYSTEM

 

 

greasing than from insufficient grease.

 

 

COMMUTATOR AND BRUSH MAINTENANCE

The SAE-400 SEVERE DUTY is equipped with a pres-

 

WARNING

sure radiator. Keep the radiator cap tight to prevent

 

loss of coolant. Clean and flush the cooling system

Uncovered rotating equipment can be dangerous.

periodically to prevent clogging the passage and over-

heating the engine. When antifreeze is needed, always

Use care so your hands, hair, clothing or tools do

use the permanent type.

 

 

not catch in the rotating parts. Protect yourself

FUEL FILTERS

 

 

from particles that may be thrown out by the rotat-

 

 

ing armature when stoning the commutator.

 

 

 

 

 

WARNING

 

 

------------------------------------------------------------------------

 

 

 

The generator brushes are properly adjusted when the

 

 

 

 

 

 

 

 

welder is shipped. They require no particular attention.

 

When working on the fuel system

DO NOT SHIFT THE BRUSHES or adjust the rocker

 

 

 

 

setting.

 

• Keep ungrounded lights away, do not

Shifting of the brushes may result in:

 

smoke !

 

 

 

 

 

 

-

Change in machine output

 

• Do not spill fuel !

 

 

- Commutator Damage

 

 

 

 

-

Excessive brush wear

------------------------------------------------------------------------

Periodically inspect the commutator, slip rings and

The SAE-400 SEVERE DUTY is equipped with a Fuel

Pre-Filter/Water Separator Assembly located before

brushes by removing the covers. DO NOT remove or

the lift pump and a Secondary Fuel Filter located after

replace these covers while the machine is running.

the lift pump and before the fuel injectors. The Fuel

Commutators and slip rings require little attention.

Pre-Filter/Water Separator is mounted to the engine

However, if they are black or appear uneven, have

block just below the lift pump.

 

 

them cleaned by an experienced maintenance person

The Secondary Fuel Filter is mounted directly to the

using fine sandpaper or a commutator stone. Never

engine just above the oil filter.

 

 

use emery cloth or paper for this purpose.

 

 

 

 

NOTE: If the welder is used in dirty or dusty locations,

FUEL PRE-FILTER/WATER SEPARATOR ASSEMBLY

 

 

 

 

 

or if the welder is not used for prolonged peri-

The pre-filter is a 150 micron screen designed to pro-

 

ods of time, it may be necessary to clean the

tect against gross fuel contamination of the water sep-

 

commutator and slip rings more often.

arator element and the Secondary Fuel Filter.

If the

Replace brushes when they wear within 1/4" of the pig-

pre-filter becomes plugged it may be removed, inspect-

ed, cleaned and reinstalled. In general this only needs

tail. A complete set of replacement brushes should be

to be done with each water separator element change

kept on hand. Lincoln brushes have a curved face to fit

(about every 1,000 hrs.) However if at any time exces-

the commutator. Have an experienced maintenance

sive fuel contamination is suspected or a sudden fall-

man seat these brushes by lightly stoning the commu-

off in engine performance is detected the pre-filter

tator as the armature rotates at full speed until contact

screen should be inspected and cleaned. Follow the

is made across the full face of the brushes. After ston-

following procedure:

 

 

ing, blow out the dust with low pressure air.

 

 

 

 

SAE-400 SEVERE DUTY

Page 26 Page 28
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Image 27
Lincoln Electric SVM187-A Bearing Maintenance, Cooling System, Fuel Filters, Fuel PRE-FILTER/WATER Separator Assembly
Page 26 Page 28

SVM187-A specifications

The Lincoln Electric SVM187-A is a cutting-edge welding machine designed for professional welders and industrial applications. Known for its reliability and performance, it stands out in the competitive welding equipment market. This versatile machine is structured to handle various welding processes, making it a popular choice among users.

One of the primary features of the SVM187-A is its multifunctional capabilities. It supports MIG, TIG, and Stick welding, allowing users to switch between different welding techniques seamlessly. This flexibility makes it suitable for diverse applications, whether working on automotive repairs, metal fabrication, or construction projects. Additionally, the machine is equipped with a robust power output, ranging from low to high amperage settings, enabling users to tackle a wide array of materials, including mild steel, stainless steel, and aluminum.

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Another notable characteristic of the SVM187-A is its user-friendly interface. The intuitive control panel includes digital displays for precise settings adjustments, ensuring accuracy during operation. Beginners and seasoned welders alike can benefit from the clear and straightforward design, reducing training time and enhancing productivity.

Safety features are paramount in the SVM187-A's design. The machine is equipped with thermal overload protection, ensuring that it operates within a safe temperature range to prevent damage and promote longevity. Additionally, it features automatic voltage regulation, which maintains a stable arc even under varying input voltage conditions.

In summary, the Lincoln Electric SVM187-A is a versatile, efficient, and user-friendly welding machine suited for both professional and industrial applications. Its multifunctionality, inverter technology, and robust safety features set it apart from competitors, making it a reliable choice for welders seeking to elevate their craftsmanship while ensuring safety and efficiency. This machine represents the innovation and quality that Lincoln Electric is renowned for in the welding industry.
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