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TROUBLESHOOTING & REPAIR
F-22 F-22
CLASSIC I
WARNING
ENGINE THROTTLE ADJUSTMENT TEST
Service and repair should be performed by only 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 elec-
trical 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 troubleshoot-
ing assistance before you proceed. Call 1-800-833-9353 (WELD).
TEST DESCRIPTION
If the machine output is low or high, this test will determine whether or not the engine is oper-
ating at the correct speed (RPM) during both HIGH and LOW idle conditions. Directions for
adjusting the throttle to the correct RPM are given.
MATERIALS NEEDED
White or red marking pencil
7/16” Wrench
3/8” Wrench
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This procedure takes approximately 35 minutes to perform.