Lincoln Electric SVM194-A 31TROUBLESHOOTING and REPAIRF-31, Engine RPM Adjustment Test Procedure

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F-31TROUBLESHOOTING AND REPAIRF-31

ENGINE RPM ADJUSTMENT TEST PROCEDURE

WARNING

Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical trou- bleshooting assistance before you proceed. Call 1-888-935-3877.

TEST DESCRIPTION

This test will determine if the engine is operating at the correct RPM, for both high and low idle positions.

MATERIALS NEEDED Miscellaneous hand tools Strobe tachometer

Frequency counter or Multimeter with frequency counter function Bright colored marking pencil or marker

Note: The engine RPM on the Classic® 300G and 300D with the Kubota engine is not adjustable. The electronic modules on these machines maintain RPM based on internal programming and the position of the RPM adjustment potentiometer or "Custom Arc" control. RPM should still be checked to determine if these sys- tems are functioning correctly.

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CLASSIC® 300D & 300G