Starter - Kubota WG1605-G-E3 Workshop Manual

WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, WSM

(7) Starter

Overrunning Clutch
1. Inspect the pinion for wear or damage.
2. If there is any defect, replace the overrunning clutch assembly.
3. Check that the pinion turns freely and smoothly in the
overrunning direction and does not slip in the cranking direction.
4. If the pinion slips or does not rotate in the both directions,
replace the overrunning clutch assembly.
Commutator and Mica
1. Check the contact face of the commutator for wear, and grind
the commutator with emery paper if it is slightly worn.
2. Measure the commutator O.D. with an outside micrometer at
several points.
3. If the minimum O.D. is less than the allowable limit, replace the
armature.
4. If the difference of the O.D.'s exceeds the allowable limit, correct
the commutator on a lathe to the factory specification.
5. Measure the mica undercut.
6. If the undercut is less than the allowable limit, correct if with a
saw blade and chamfer the segment edges.
Factory specification
Commutator O.D.
Allowable limit
Factory specification
Difference of O.D.'s
Allowable limit
Factory specification
Mica under cut
Allowable limit
(1) Segment
(2) Undercut
(3) Mica
Brush Wear
1. If the contact face of the brush is dirty or dusty, clean it with
emery paper.
2. Measure the brush length (A) with vernier calipers.
3. If the length is less than the allowable limit, replace the yoke
assembly and brush holder.
Factory specification
Brush length (A)
Allowable limit
(A) Brush Length
1-S58
ENGINE
9Y1210318ENS0125US0
28.0 mm
1.10 in.
27.0 mm
1.06 in.
Less than
0.05 mm
0.002 in.
0.4 mm
0.02 in.
0.50 to 0.80 mm
0.020 to 0.031 in.
0.20 mm
0.0079 in.
(a) Good
(b) Bad
9Y1210661ENS0061US0
16.0 mm
0.630 in.
10.5 mm
0.413 in.
9Y1210661ENS0062US0
KiSC issued 01, 2012 A