No- Load Testing Of Alternator; Checking Rotor Coil, Slip Ring And Brush; Checking Cut-In-Voltage - Kubota D1102-B Workshop Manual

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No- Load Testing of Alternator

1) Remove the al ternator's coupl er, connect the al ternator's
F
term i nal to B termi n al, and grou nd E termi nal to the
body.
2) Con nect a vol tmeter across B termi n al a nd the grou nd.
3) Start the engine and speed u p the alternator to the specif i-
1
ed rate 1300
min- (rpm)
di sconnect the battery's negati ve
t he voltage.
( Note for testing)
• Be sure to disconnect the battery's negative cable before
setting the voltmeter.
8
Checking Rotor Coil, Slip R ing and Brush
1 ) Discon nect the al ternator cou pl e r and then measu re th e
resistance across the al te rnator's F a nd E term i nals.
0
Checking Cut- In-Voltage
Con nect a vol tmete r across the al ternator's N termi nal and
1 )
the body.
2 ) Remove the 4th 8A f use from the left and connect a bul b
(30W) i n i ts place.
3) Speed up th e al ternator u n ti l the ch arge warni n g l am p
goes off or d i ms, then read the vol tmeter.
77
Next, tu rn the mai n switch off ,
cable and measu re
KiSC issued 09, 2007 A