Lincoln Electric Ranger 305D Service Manual page 59

F-5
TROUBLESHOOTING GUIDE
PROBLEMS
(SYMPTOMS)
No auxiliary power at one or more
receptacles, or at the 14 pin
Amphenol receptacle. Weld output
is normal, and the engine operates
normally.
The machine has low welding out-
put and low auxiliary output.
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 troubleshooting assistance before you proceed. Call
1-888-935-3877.
TROUBLESHOOTING & REPAIR
All manuals and user guides at all-guides.com
POSSIBLE AREAS OF
MISADJUSTMENT(S)
POWER OUTPUT PROBLEMS
1. Check for loose or faulty con-
nections at any cords attached
to the auxiliary output recepta-
cles, or to the 14 pin Amphenol
receptacle.
1. The engine RPM may be too
low.
2. The brushes may be worn,
sticking, or poorly seated.
CAUTION
RANGER 305D
Observe Safety Guidelines
detailed in the beginning of this manual.
RECOMMENDED
COURSE OF ACTION
1. Check for tripped circuit break-
ers and/or tripped GFCI recep-
tacles.
2. Perform the Stator Voltage
Tests.
1. The high idle speed may be low.
Perform the Engine Throttle
Adjustment Test.
NOTE: If the engine high idle RPM
is normal, but the engine slows
down excessively
machine is placed under a normal
welding or auxiliary load.
engine may have lost horsepower,
and may be in need of service.
NOTE: Normal Full load engine
speed should be about 3500 RPM.
2. Inspect and, if necessary, ser-
vice the brushes and slip rings
per the Brush and Slip Ring
Service procedure.
3. Perform the Rotor Voltage
4. Perform the Stator Voltage Test.
Test.
F-5
when the
The