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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
If the machine output is low, this test will determine whether the gasoline engine high idle
speed is set for the correct maximum RPM.
MATERIALS NEEDED
Screwdriver
Frequency Counter or Strobe-tach or Oscilloscope
Black or Red Marking Pencil
10mm Socket Wrench
ENGINE THROTTLE ADJUSTMENT TEST
ROBIN/SUBARU ENGINE
TROUBLESHOOTING AND REPAIR
F-25 F-25
BULLDOG® 140
WARNING
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