Operation, Engine operation, Warning caution – Lincoln Electric COMMANDER SVM145-B User Manual

Page 24

Advertising

“WIRE WELDING” mode: In this mode increasing the
number from 1 to 10 changes the arc from soft and
washed-in to crisp and narrow. It acts as an induc-
tance control. The proper setting depends on the appli-
cation and operator preference.

In general, MIG welding performs best in the “SOFT”
range and Innershield in the “CRISP” range.

ENGINE OPERATION

DO NOT RUN THE ENGINE AT EXCESSIVE
SPEEDS. The maximum allowable high idle speed for
the Commander 300 is 1900 RPM, no load. Do NOT
increase the idle speed on the engine. Severe per-
sonal 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 Deutz engine instruction manual that is shipped
with your Commander 300.

STARTING THE ENGINE

1. Open the engine compartment door and check that

the fuel shutoff valve located to the left of the fuel fil-
ter housing is in the open position. (The lever
should be in line with the hose.)

2. Check for proper oil level on the oil dipstick. Close

the engine compartment door.

3. Remove all plugs connected to the AC power recep-

tacles.

4. Set IDLER switch to “AUTO.”

5. Set the RUN/STOP switch to “RUN.” Observe that

all engine protection lights momentarily turn on.
Some lights may turn off before starting. Check the
fuel gauge (K1585-2 only) to make sure that there
is an adequate fuel level.

6. Press and hold the engine START button for a min-

imum of 2 seconds.

7. Release the engine START button when the engine

starts.

8. Check that the indicator lights are off. If the LOW

FUEL light is on (K1585 2 only), the engine will shut
down 30 minutes after starting. If any other indica-
tor light is on after starting, the engine will shut
down in a few seconds. Investigate any indicated
problem.

9. Allow the engine to warm up at low idle speed for

several minutes before applying a load and/or
switching to high idle. Allow a longer warm up time
in cold weather.

COLD WEATHER STARTING

With a fully charged battery and the proper weight oil,
the engine should start satisfactorily even down to
about 0°F. With the above and the optional ether
starter kit (K887-1), the engine should start satisfacto-
rily down to about -20°F. With the above and an oil pan
preheating system,* the engine should start satisfacto-
rily down to about -30°F. With the above and a battery
warmer,* the engine should start satisfactorily down to
about -40°F.

* Contact your local Lincoln Electric Representative for
suggested after-market kits.

STOPPING THE ENGINE

Switch the RUN/STOP switch to “STOP.” This turns off
the voltage supplied to the shutdown solenoid. A back-
up shutdown can be accomplished by shutting off the
fuel valve located in the fuel line.

BREAK-IN PERIOD

The engine used to supply power for your welder is a
heavy duty, industrial engine. It is designed and built
for rugged use. It is very normal for any engine to use
small quantities of oil until the break-in is accom-
plished. Check the oil level twice a day during the
break-in period (about 200 running hours).

During break-in, subject the Commander 300 to
heavy loads. Avoid long periods running at idle.
Before stopping the engine, remove all loads and
allow the engine to cool several minutes.

The heavy loading of the engine during break-in, with-
in the rating of the machine, is recommended to prop-
erly seat the piston rings and prevent wetstacking.
Wetstacking is an accumulation of unburned fuel
and/or lubricant in the form of a wet, black, tar-like sub-
stance in the exhaust pipe. The rings are seated and
the break-in period is complete when there are no
longer any signs of wetstacking, which should occur
within the first 50 to 100 hours of operation.

OPERATION

B-8

COMMANDER 300