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Low Voltage Output
1.
Verify voltage output at generator output leads_with load applied
to generator; check no load condition also.
Check voltage at the
load.
Check rating for generator and verify load with amp probe
at output leads.
Check all connections to insure they are clean
and secure.
Insure that the wire size carrying the voltage to the
load is of sufficient size so as not to produce a voltage drop.
NOTE:
Beware of motor starting loads and the amperage draw placed
on
the
generator
from
these
types
of
loads.
Generally,
the
amperage draw of a motor
at start up will be 3 -
5 times
the
amperage needed when running.
2.
Check generator with Hertz meter:
3.
No Load Hertz
No Load Voltage
No Load Voltage
Test Bridge Rectifier:
Bridge rectifier may be
(1)
Set ohmmeter
scale
on
(+DC)
zero
meter.
Rxl
the
(2)
Connect
the
(+)
lead
from
the
meter
to
Point
i4,
with
the
(-) lead from the
meter momentarily
contact
points
iI,
#2,
#3
and
#5.
No
deflec-
tion
of
the
needle should
occur showing
infinite
resistance.
(3)
Remove
the
(+)
lead
from
Point
61 - 61.5 (51 - 51.5)
131 - 135 Volts (Generator Cold)
126 - 130 Volts (Generator Hot)
faulty and should be checked as follows.
Point #5
(Rectifier Mounting Hole)
' - - _ - Point #3
#4
and connect the
(-)
lead to Point #4 and with the
(+)
lead, momentarily touch Points iI, i2 and #3.
Points #1 and
#3 should show an a-ohm resistance +2 ohms.
Point #2 shoudl
show a 40-ohm resistance +5 ohms.
(4)
Touch Point #5 with the (+) lead, no deflection of the needle
should occur.
IF THE RECTIFIER FAILS ANY OF THE ABOVE TESTS,
IT IS DEFECTIVE AND SHOULD BE REPLACED.
136
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