Hobart Pipeliner Instructions Manual page 11

T-964C
PART ONE - INTRODUCTION
b. 'MAINLINER' - The .'Mainliner' welder Is of the same design, construction and
capacity as the 'Pipeliner* model. Howeyer, the 'Mainliner' carries as standard
equipment, a polarity switch and hinged side panels which can be locked in place.
c. ENGINE - The engine is a Wil.lys, 4-cyl, 4-cyc, water-cooled gasoline engine
developing 35.5 hp at the 1800-rpm operating speed. It is directly connected to
the welding generator by a flexible coupling. Self-starting units are equipped
with a 12-volt ignition system, a self-starting motor, a generator, a generator-
voltage regulator, an oil filter, and an air cleaner. The speed of the engine is
controlled by a mechanical-type governor.
When the engine is equipped with magneto ignition (hand crank), the starter,
generator, distributor, voltage regulator, and battery are not furnished.
d. WELDING-GENERATOR - The welding generator is mounted on a single, heavy-duty
shaft with a ball bearing at the generator end. The unit is rated at 40-volts, 250
amps at 60% duty cycle, and has a.current range of 30-360 amp. The welder is
cooled by a large, squirrel-cage-type fan that draws cool air in at both ends of
the welding generator, and expels the heated air at the center.
e.
ENGINE
CONTROLS - The engine controls for the battery equipped units are on
the lower portion of the rear canopy panel. They consist of the battery charging
ammeter, choke, starter pushbutton and keylock ignition switch.
The engine controls for those units equipped with a magneto (hand crank) con­
sist of an ON-OFF toggle switch and a choke, conveniently mounted on the front can­
opy panel. The starting crank is mounted on top of the steel frame along the right
side of the unit.
f. WELDING-GENERATOR CONTROLS - The welding generator controls are mounted on
the rear canopy panel, just above the engine controls. They consist of the multi­
range switch, volt-amp adjuster or field rheostat, ground and electrode terminals,
and a 110-V D.C. double outlet receptacle. When specified on an order, a voltmeter
and an ammeter are also located on this panel.
On the 'Mainliner' and specially equipped 'Pipeliners* a polarity switch is
also located on this rear canopy panel.,
g. IDENTIFICATION - The 'Pipeliner' and 'Mainliner' welders have an identifica­
tion nameplate mounted on the rear canopy panel, just above or below the multi­
range switch. The engine identification nameplate is located on the right side of
the engine block, just back of the water pump. When ordering spare parts or com­
municating with us about this machine, please, be sure to specify the engine serial
number as well as the specification and serial numbers of the welding unit.
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