Hobart 5359D Operation And Maintenance Manual page 123

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OM 2012
(I) S1-xt
ffi::
engifz in accordmse with ins!wcticmt in I-3; Purer. 2, A
fhr:s c.
.
(3) Check engine idle speed. Sfi~ouid be 875 to 925 RPAd. Aciust, if necessury,
in accordance with instruction5 in Engine Opera{ds
Mcncrll .
NOTE:
A sirobcscope is required for this check.
(4) Agcin check for oil, fuel, and coolant Icc!<s ci:!d correct any leckir,g coniiticn.
(5) Position switches and controls for automatic voltage regulc,iIcr~ and power
de1 ivery as fol iows:
(a) Place automatic-manual switch (33, Fig. 2) in AUTOMATfC position.
.
_ I
(b) Place test-bank switch (34) in AIRCRAFT position.
.
1 (c) CSetcr switch (5) may be inany position except pointing straight down.
'..
.
(d) If the adiustment of the voltage, regulator i'heostat (37) has been distuked,
position the knob to mid-range position.
(6) Bring the engine up to governed speed and also energize the generator by
holding the engine-generator control switch (18) in BUILD-UP-VOLTS
posit ion momentarily .
Release switch and allow it to position in "center"
.
RUN position.
.
If the engine "comes-up" to governed speed and a voltage value appears
on
the voitmeter(2) , the electric governor and exe itation-deenerg izo-
tion relay circuits are functioning.
(7) Observe frequency meter (1).
If engine speed is properly odiusted; frequency
wiil be exactly 400 Hz.
If not, adjust engine governed speed in accordcnce
with Para. 4, E, (3) (d). See Fig. 12.
(8) Observe voltmeter (2). Use rheostat (37') to adjust voltage to 115 V AC.
(9)
Measure governor actuator input signa!. See Para. 4, E , (4), (a).
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Aug25G5
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