Kubota D1102-B, Руководство по ремонту, Страница: 100 / 109

KiSC issued 09, 2007 A
(;) Grounding of Field Coil
1 ) To check the conducti on . Place the tester probes onto the
f ield coil and yoke.
2) If either are conducti ng, repl ace.
Should not
CJ)
Checking Brush Wear
1) ) Check to see if the brush has worn to more than
2/3 below the standard dimensi ons.
2) I f wear exceeds the al l owable l i mi t, repl ace.
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• Starter brush dimensions
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C022F059
Model Length
Width Thickness
D1102-B
D1302-B
19 mm
0.7480 in.
12 mm
0.4724 in.
7 mm
0.2756 in.
D1402-B
V1502-B 19 mm 25 mm 8 mm
V1702-B 0.7480 in. 0.9843 in. 0.3150 in.
V1402-B
Ci)
Checking Brush Spring Tension
1) ) Measu re the tension with a new brush i n pl ace.
2) Replace
if
the tension is un der the reference val ue.
Reference value
Model Spring tension Commutator diameter
01102-B
D1302-B
11.8 N.
1,200 g
2.64 lb
32.7 mm
1.2874 in.
D1402-B
V1502-B
V1702-B
V1902-B
17.5 to 23.7N.
1,785 to 2,415 g
3.94 to 5.33 Ib
30.0mm
1.1811in.
94
(a) Spring hanger
(b) Attach the brush spring
in this method.
Co22F077