Lincoln Electric SAE-500 Operator's Manual page 25

SAE-500 TM AND SAE-500 TM
PROBLEMS
(SYMPTOMS)
Engine will "crank" but not start.
Machine fails to hold the "heat"
constantly.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
SEVERE DUTY TM
Observe all Safety Guidelines detailed throughout this manual
1. Out of fuel.
2. Fuel shut off valve is in the off posi-
tion make sure the valve lever is in
the open position (lever in-line with
the Hose).
3. Engine shut down solenoid not pulling
in.
4. On/Off switch on for more than 30
sec. before starting, the On/Off
switch will need to be switch off and
turned back on.
5. Fuel Filters dirty/clogged, main filter
element and/or Inline Fuel Filter may
need to be replaced.
6. High oil temperature or low oil pres-
sure. (engine protection light lit)
7. Air intake shut-off is closed.
Manually reset inside machine.
8. Low battery voltage.
1. Rough or dirty commutator.
2. Brushes may be worn down to
limit of life.
3. Brush springs may be broken.
4. Field circuit may have variable
resistance connections or inter-
mittent open circuit, due to loose
connections or broken wire.
5. Electrode or work lead connec-
tions may be poor.
6. Wrong grade of brushes may be
installed on generator.
7. Field rheostat may be making
poor contact and overheating.
8. "Current Control" may not be
operating properly.
9. "Current Control" brushholder
contact springs may be worn out
or missing. Contact surface may
be dirty, rough and pitted.
10. "Current Control" brushholder
support stud and mating contact
surfaces may be dirty or pitted
and burned.
11. Engine running at varying
speeds.
POSSIBLE
CAUSE
CAUTION
E-2
TROUBLESHOOTING
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.