Kubota D1803-CR-E4 - Checking Brush Holder of Starter

1. Measure the brush length (A) with a vernier caliper.
NOTE
• If the
length is less than the service limit,
replace the yoke assembly and brush holder
assembly.
Brush length
(A)
Service speci-
fication
15.0 mm
0.591 in.
Service limit
D1803-CR-E4
D1803-CR-
TE4
D1803-CR-
TIE4
11.0 mm
0.433 in.
V2403-CR-E4
V2403-CR-
TE4
V2403-CR-
TE4BG
V2403-CR-
TIE4
9.0 mm
0.35 in.
(A) Brush length
2. After you replace the brush, put an emery paper
(#300
or above) on the commutator and correct the
contact position.
7.46 Checking brush holder of
starter
Tools required
• Circuit tester
1.
Check the continuity across the brush holder and
the holder support with a circuit tester.
NOTE
• If electricity
flows, replace the brush holder
assembly.
Resistance be-
tween brush hold-
er and holder sup-
port
Service specifi-
cation
Infinity
7.47 Checking armature coil of
starter
Tools required
• Circuit tester
1.
Check the continuity across the commutator and
armature coil core with the resistance range of
circuit tester.
NOTE
• If electricity
is out of service specification,
replace the armature assembly.
Resistance be-
tween commutator
and armature coil
core
Service specifi-
cation
Infinity
SERVICING
7. Servicing 4. ENGINE
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
4-187
KiSC issued 12, 2018 A