Engine Operation; Before Starting The Engine; Starting The Engine - Lincoln Electric SHIELD-ARC SVM128-A Service Manual

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ENGINE OPERATION

WARNING
DO NOT RUN THE ENGINE AT EXCESSIVE
SPEEDS. The maximum allowable high idle speed for
the SA-250 is 1800 RPM, no load. Do NOT increase
the idle speed on the engine. Severe personal injury
and damage to the machine can result if it is operated
at speeds above the maximum rated speed.
Read and understand all safety instructions included in
the Perkins engine instruction manual that is shipped
with your SA-250.

BEFORE STARTING THE ENGINE

Check and fill the engine oil level:
1. Be sure the machine is on a level
surface.
2. Remove the engine oil dipstick and wipe it with a
clean cloth. Reinsert the dipstick and check the
level on the dipstick.
Maintenance section of this manual.
3. Add oil (if necessary) to bring the level up to the full
mark. Do not overfill.
4. Replace the dipstick.
OPERATION
See Figure D.1 in the
SA-250
Check and fill the engine fuel tank:
WARNING
Do not add fuel near an open flame,
welding arc or when the engine is run-
ning. Stop the engine and allow it to
cool before refueling to prevent spilled
fuel from vaporizing on contact with
hot engine parts and igniting. Do not
spill fuel when filling tank. If fuel is spilled, wipe it up
and do not start engine until fumes have been elimi-
nated.
1. Remove the fuel tank cap.
2. Fill the tank to allow approximately 1/4 inch (5 mm)
of tank space for fuel expansion. DO NOT FILL
THE TANK TO THE POINT OF OVERFLOW.
3. Replace the fuel tank cap and tighten securely.
NOTE: USE DIESEL FUEL ONLY. Purchase diesel
fuel in quantities that will be used within 30 days, to
assure freshness.

STARTING THE ENGINE

NOTE: Remove all loads connected to the AC power
receptacles before starting the diesel engine.
1. Place the IDLER switch in the "HIGH" position and
the IGNITION switch in the ON position. Press the
RESET button, then press the START button.
NOTE: If the engine fails to start in 60 seconds, wait 30
seconds then repeat step 1.
2. When the engine starts running, observe the oil
pressure. If no pressure shows within 30 seconds,
stop the engine and consult the engine operating
manual.
3. Allow the engine to run at high idle for several min-
utes to warm the engine prior to welding.
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