Lincoln Electric SVM148-B service manual On page F-6

Models: SVM148-B

1 140
Download 140 pages 28.49 Kb
Page 64
Image 64

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

F-5

F-5

 

TROUBLESHOOTING & REPAIR

 

TROUBLESHOOTING GUIDE

OBSERVE SAFETY GUIDELINES

 

 

DETAILED IN THE BEGINNING OF THIS MANUAL.

PROBLEMS

POSSIBLE AREAS OF

 

RECOMMENDED

(SYMPTOMS)

MISADJUSTMENT(S)

 

COURSE OF ACTION

 

 

 

 

OUTPUT PROBLEMS

 

No weld output, the auxiliary power

1. On DLX machines, the output

1. On DLX machines, the output

(230-115VAC) is operating normal-

contactor

must be

activated

contactor or associated leads

ly. Engine operates normally.

(closed).

 

 

 

 

 

may be faulty. See the Wiring

 

2. Normal AC open circuit voltage

Diagram. The output contactor

 

coil is energized by 12VDC. If

 

is approximately 70 to 80 volts.

 

the coil is not receiving 12VDC

 

Normal DC is 64 to 74VDC. If

 

when the Welding Terminals

 

the open circuit voltage is NOT

 

Switch is in the “Always ON”

 

present

at

the welder output

 

position, the control board may

 

terminals,

contact your

local

 

be faulty. Also check associat-

 

Lincoln

 

Authorized

Field

 

 

ed leads #224 and #232.

 

Service Facility.

 

 

 

 

 

 

 

3. If normal open circuit voltage is

2. If OCV is absent in both modes

 

(CV & CC), disconnect lead W1

 

present at the output terminals,

 

from the output bridge (D1).

 

check

the

welding

cables,

 

With the engine at high idle and

 

clamps,

and

electrode

holder

 

the output control at maximum,

 

for loose

or

broken

connec-

 

check for 70 to 76VAC from

 

tions.

 

 

 

 

 

 

 

 

 

 

 

lead W1 to lead W2 on the main

 

 

 

 

 

 

 

 

 

 

 

 

 

 

stator winding. See the Wiring

 

 

 

 

 

 

 

Diagram. If the AC voltage is

 

 

 

 

 

 

 

NOT present, the winding may

 

 

 

 

 

 

 

be faulty. Check the winding for

 

 

 

 

 

 

 

continuity and test to be sure it

 

 

 

 

 

 

 

is NOT grounded to the stator

 

 

 

 

 

 

 

iron. Replace if necessary. If

 

 

 

 

 

 

 

the voltage is present, proceed

 

 

 

 

 

 

 

to step #3.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(continued on page F-6)

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-800-833-9353.

RANGER 300 D AND 300 DLX

Page 64
Image 64
Lincoln Electric SVM148-B service manual On page F-6

SVM148-B specifications

The Lincoln Electric SVM148-B is a state-of-the-art inverter-based power source designed for both professional welders and hobbyists. As a versatile machine, it excels in a variety of welding applications including MIG, TIG, and stick welding. This machine is particularly notable for its efficiency and portability, making it an ideal choice for on-site projects or workshops where space is limited.

One of the main features of the SVM148-B is its inverter technology. Unlike traditional transformer-based welders, inverter welders are typically lighter and more compact. This means that users can transport the machine more easily without sacrificing power or performance. The SVM148-B is capable of delivering a substantial amperage range, allowing for adjustments that suit various materials and thicknesses, from thin sheet metal to thicker plates.

The machine offers adjustable output levels, providing precise control over the welding process. This level of control is essential for achieving clean, strong welds and is especially useful when working with different materials. The SVM148-B is equipped with digital display features that provide real-time feedback on power settings and welding parameters, allowing welders to make quick adjustments as needed.

Another significant advantage of the SVM148-B is its duty cycle, which is designed to accommodate extended usage without overheating. A robust duty cycle means that professionals can rely on this machine for prolonged periods, making it a dependable choice for heavy-duty tasks.

The SVM148-B also includes advanced safety features such as overload protection, which ensures that the machine will shut down in the event of excessive current draw. This feature not only protects the equipment but also enhances user safety during operation.

Moreover, the machine is compatible with a wide variety of welding wires and electrodes, adding to its versatility. Whether you're working with stainless steel, aluminum, or mild steel, the SVM148-B can adapt seamlessly.

In conclusion, the Lincoln Electric SVM148-B combines advanced inverter technology with user-friendly features, making it an invaluable addition to any welding setup. Its portability, control options, robust duty cycle, and safety measures set it apart as a reliable and efficient welding solution for professionals and hobbyists alike. Whether for a small workshop or large industrial applications, the SVM148-B meets the demands of modern welding with efficiency and ease.