Note. Do not operate machine with choke
knob pulled out after coolant has reached operating
(4) After engine has operated for 10 to
20 seconds, check oil pressure gauge for indi-
cation of oil pressure.
Caution: If no oil pressure is indicated
after 30 seconds of operation, stop engine and
locate source of trouble.
STEP 1. PUSH MAGNETO SWITCH IN.
Warning: Do not perform any welding
operation without a welder's helmet. The flash
of the welding arc can cause injury to the eyes.
STEP 1. PLACE POLARITY SWITCH IN " OFF " POSITION
STEP 2. HOLD HOLD-DOWN-TO-START SWITCH DOWN.
STEP 3. PULL MAGNETO SWITCH OUT.
STEP 4. DEPRESS ENGINE START SWITCH.
xiliary operation of the equipment.
Note. Use portable job selector for remote work.
b. Welding Methods.
(1) When welding in the vertical and
overhead position, the operator should have a
strong digging arc for penetration and a cool
a. Normal Stopping.
arc to let molden metal solidify. With job se-
(1) Engine idle regulator will automati-
lector set in the red section for a medium-low
cally return engine to idling speed of about 950
open-circuit voltage (overhead and vertical
rpm when welding arc is extinguished. Allow
setting), the electrode is pulled away, the cur-
engine to idle a few minutes to cool down.
rent will cut down to a lower figure, cooling
the puddle and letting the metal solidify. The
Caution: Do not pull out choke when
"in" and "out" motion, combined with normal
stopping engine as raw gasoline will wash lubri-
whipping techniques, gives operator complete
cant cylinder walls.
control over the puddle during vertical and
(3) Close fuel shut-off valve below fuel
(2) When welding down hand or for sheet