Hobart 9OC24S Operation Manual page 67

iMOTOR GENERATOR DlVllSlON
HOBART BROTHERS COMPANY
OPERATION, MAINTENANCE, AND OVERHAUL MANUAL, TM-240A
SELF-PROPELLED GENERATOR SET, SPEC. NO. 5381A
The rotary selector switch is wired in such a manner that for any switch position,
two pre-selected test points in the generator set circuitry are connected for testing.
The selector switch may be rotated to any one of 22 positions, however, not all
positions are used in this installation.
An instruction plate mounted under the
switch knob indicates switch positions and component tested in each position.
Normal voltage for each test is also indicated.
q Two test jacks are provided for connection of the test prods of a voltmeter. After
the voltmeter is connected and selector switch positioned, the test circuit is
closed by pressing the pushbutton switch.
A voltage value may then be observed
on the voltmeter. This arrangement prevents energization of test circuitry and
equipment for extended periods and allows the operator to reset and adjust the
voltmeter without disconnecting it from the box.
For operating instructions, see Sect. l-3, Para. 5.
9. Additional Variations
A. Variation No. 3
Since the manual wasoriginally written, Variation No. 3 has been added as an
option. This variation provides a 112-V DC Transformer-Rectifier with special
brackets for mounting it alone on a standard S5381A machine. You will remember
that Variation No. 2 is also for a 112-V DC T-R, however Variation No. 2
provides mounting accessories for mounting the T-R on top of a 28-V DC T-R
only.
Ott 30/73
June 25/74 Revised
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