5-S3
ZD21N-EC, ZD21-EC, ZD28-EC, WSM
ELECTRICAL SYSTEM
2. SERVICING SPECIFICATIONS
W1013874
Item Factory Specification Allowable Limit
Battery Voltage
Potential
Difference
More than 12 V
Less than 0.1 V
–
–
Glow Plug Resistance Approx. 0.9 Ω –
Starter
Commutator
Mica
Brush
O.D.
Difference of
O.D.’s
Undercut
Length
30.0 mm
1.181 in.
Less than 0.02 mm
0.0008 in.
0.50 to 0.80 mm
0.0197 to 0.0315 in.
14.0 mm
0.551 in.
29.0 mm
1.142 in.
0.05 mm
0.0020 in.
0.20 mm
0.0079 in.
9.0 mm
0.354 in.
AC Dynamo Charging Current /
Dynamo Speed
Charging Voltage /
Dynamo Speed
14 to 15 A / 5200 rpm
14 to 15 V / 5200 rpm
–
–
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