Hobart 5359D Operation And Maintenance Manual page 149

c
OM 2012
The c~hcvco
ifnm:
arc
in addition to normally rcplcccd
I
'!CrtlS SllCh CCi fur: i
pump, in
jeCtc;s,
re lays, etc.
6.
Test Valuzs
Aithough test valuzs
carp provide J a$ ihioughcx~t ihe troiil~le shcding chart, wh:.:re app!iccbIs,
udditional information and values are given I1er.e.
Generate: output at maximum
voltage regulator rheoztnt setting
134 V or higher
Generator output at
n~inimxn
voltage regulator rheostat setting
108 v or lov"er
Overload relay trips at any value above 112 KYA in 5 minutes.
Overvoltage relay trips at 13O'to 134 V AC, resets at 125 V AC.
Uldervoltcge reiay trips at 93 to 102 V AC, resets at 110 V AC.
Utdervolfcge tire delay circuit functions in 4 to 12 seconds.
Overfreqbency relay trips at 415 to 425 Hz, resets at 410 Hz.
Underfreqency relay trips at'3?5 to 380 Hz, resets at 385 Hz.
Overload relay trips at 125% rated load in 5 minutes.
*
See 2-3, Fig. 15 for typical test values at test receptacle and test box.
7. Check Connections and Leads
ALWAYS mak.z a check ofconnections and leads to a component suspected of being
faulty. With the exception of a few instances,
we will ossumz that connections
and wiring have atwa\/s been checked first and that power has not been lost as a
.
resuit of defective wiring OT connections.
8. E fectric Governor Trouble Shooting
The following fccts concerning the operation of the electric governor may be
helpful in understanding the system and in determining which unit in the system is
faulty in case of troubles.
A. The system requires two sources of power to operate normally.
(1)
12-V DC input power (from engine electrical sytem)
(2) 4-V AC input power (from magnetic pickup)
3-l
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