application and up to 300 amperes for general
connect between the rheostat and the receptacle
welding. Each welding ampere range shown on the
that the rheostat was originally plugged into. Turn
switch shows a minimum and a maximum for the
the adjusting rheostat clockwise to increase welding
range selected, that should be further adjusted with
amperage and counterclockwise to decrease am-
the D.C. ampere adjusting rheostat.
u. D.C. Voltmeter. The D. C. voltmeter (fig. 2-
t. D. C. Ampere Adjusting Rheostat. The
13) indicates the 13.C. voltage output of the welder
and will show a maximum of 40 volts.
amperage within the ampere range selected at the
U. Overspeed Safety Switch. (Model SEORLT
D.C. ampere selector switch. This rheostat may be
only). Overspeed relay will shut down engine at
removed from the control panel and moved to the
welding site for remote fine adjustment of D.C.
amperage by using a suitable electrical cable to
Section IV. OPERATION UNDER USUAL CONDITIONS
( 8 ) T u r n g o v e r n o r c o n t r o l knob coun-
terclockwise to unlock, and depress detent button
a. The instructions in this section are for the
in the center of knob. Pull the governor control
information and guidance of personnel responsible
k n o b to a full "OUT" position and turn the
for operation of the shop set.
governor control knob clockwise to lock.
b. The operator must know how to perform every
operation of which the shop set is capable. This
( 1 ) Energize battery switch and start engine.
s e c t i o n contains instructions on starting and
( 2 ) Operate engine in accordance with
stopping the shop set, on operation of the shop set,
m a n u f a c t o r s recommendation, until ambient
and on coordinating the basic motions to perform
conditions are reached.
t h e specific tasks for which the equipment is
(3) Depress clutch, shift transmission lever to
designed. Since nearly every job presents a different
fourth gear, and while slipping clutch, pull upward
problem, the operator may have to vary given
without undue force, on the power take-off lever.
procedures to fit the individual job.
2-9. Starting Model
Engagement of power take-off maybe noted as similar,
a. Preparation for Starting
to normal engagement of the transmission into gear.
(1) Perform the necessary daily preventive
maintenance checks and services (para 3-4).
(4) With power take-off engaged, depress
clutch, unlock the governor control knob and push
in to dash, pull hand throttle to a full "OUT"
position and lock.
frequency for the area the vehicle is being operated.
(5) Depress detent button and pull governor
control out a slight amount to increase engine rpm
(4) Depress reset button on the overspeed
and release clutch slowly.
(6) The governor control knob may now be
pulled out slowly until the desired rpm 1,000 or
(6) Depress clutch and shift transmission lever
to neutral position.
(7) With clutch depressed, shift transfer case
(7) Lock governor control knob.
lever to neutral position, pin lever and release