Instructions
RECEIPT OF EQUIPMENT
Check the equipment received against the
Best results with this equipment will be obtained ONLY
if the responsible operating and maintenance personnel
invoice to make certain that the shipment
have access to this manual, and are familiar with the
is complete and undamaged. If the equipment has been
instructions contained herein.
damaged in transit, notify the carrier (railroad, trucking
company, etc.) at once and file a claim for damages.
Generally, it is good practice to move the equipment to
Give the MODEL, SPECIFICATION and SERIAL num-
the site of installation before uncrating. Use care in un-
crating in order to avoid damage to the equipment when
bars of the equipment, and a full description of the parts
bars, hammers, etc., are used. A lifting eye which ex-
in error. Refer to EQUIPMENT lDENTIFICATION on
tends through the top of the cabinet has been provided
front sheet of this manual for an explanation of the
specification numbers.
to facilitate handling with a crane or hoist.
DESCRIPTION OF EQUIPMENT
The Model GCC-300-W gasoline. engine-driven welding
Industrial Gasoline engine, Model V-465D. It isdirectly
generator is a self-contained unit, mounted on a welded
coupled to the welding generator shaft by a flexible
steel frame. The unit is a single operator system, design-
coupling.
ed for constant current, or constant voltage welding. The
unit is covered by a sheet metal canopy, bolted directly
to the frame. The canopy has doors enclosing the genera-
IDENTIFICATION
tor section, but the engine compartment is open at the
The welding generator unit has an identification plate
on the
sides, with a cover over the top. The control panel is at
attached to the control panel, below
the generator end of the unit The revolving fields of the
left-hand side. The unit is identified as to SPEC num-
generator are axially mounted on a single heavy duty
ber, by the dash (-) number which follows it, as ex-
shaft, supported by a ball bearing at the exciter end
plained on the front sheet of this manual. The engine
and by the engine coupling at the drive end.
identification number will be found on the engine name-
plate attached to the air shroud of the engine. When
GENERATOR
ordering spare parts or communicating about this ma-
The generator is air cooled by a shaft-mounted fan
chine, be sure to specify the engine serial number,
which draws air through the exciter end and circulates
engine type, unit specification and serial numbers. Left-
the air through the interior of the generator. Air flow
and right-hand sides of the unit are determined when
is also directed over the stability- reactor and output
facing the control panel.
rectifier. The welding generator is a three-phase alter-
nating current wye connected unit. The output of the
welding generator is rectified to direct current and
stabilized by a ballast resistor, or a stability reactor,
depending upon the mode of welding.
EXCITER
The exciter, or auxiliary generator whose output pro-
vides power to a bridge rectifier for excitation of the
welding generator, service power for the contactor
control and voltage regulator, and to the auxiliary power
ENGINE
The engine used in this unit is an air-cooled