Kubota D1102-B, Workshop Manual, Page: 82 / 109

(b) Alternator
2.ALTERNATOR AND REGULATOR
Checking Sequence
If the charging system is malfunctioning, check as
follows to find the cause.
( B) Coupler voltage check (2)
(A) Output current check (1)
(C) No load testing of alternator
(3) -{ D)
Rotor coil, slip ring and brush
{ E) Cut-in voltage check (5)
==1-
check (4)
( F) No-load regulating voltage
check (6)
( G) Regulator check (7)
76
KiSC issued 09, 2007 A
(a) Coupler
f)
Checking Coupler Voltage
1) ) Remove the cou pler from the al te rnator.
2) Tu rn the mai n switch on and then measure the vol tage
across the al tern ator couple r's F a nd E termi n als.
E
N
C022F038
0
Checking Output Current
1) Discon nect the cable from the al ternator's B termi nal and
con nect an am meter and vol tmete r to B te rmi nal. Then
switch on al l elect rical loads (such as l igh ts) an d read the
mete rs.
( Note for checking)
• Be sure to disconnect the battery's negative cable before
setting the ammeter and voltmeter.
• When the electrical load is considerably low or the battery
is fully charged, the specified readi ng cannot be obtained.
C022 F037