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TM 10-3930-653-14&P
Primary voltage
V
.............................................. 12
Spark gap
mm (in ........................................ More than 7 (0.28)
Primary resistance at 20°C (68°F)
W ..............................................3.4 to 4.2
Secondary resistance at 20°C (68°F)
KW ..............................................
8
4-7-1-2.
SERVICE DATA
(1) Starting motor
Brush
Brush length
mm (in) .......................................18.5 (0.728)
Wear limit
mm (in) .......................................7.0 (0.276)
Brush spring tension
kg (lb) .........................................1.4 to 1.8 (3.1 to 4.0)
Commutator
Outer diameter
mm (in) .......................................38.7 (1.524)
Wear limit
mm (in) .......................................2 (0.079)
Taper limit
mm (in) .......................................0.05 (0.0020)
Depth of mica
Wear limit
mm (in).......................................0.2 (0.008)
Repair accuracy
mm (in) .......................................0.5 (0.020)
Clearance between armature
shaft and bearing
Wear limit
mm (in) .......................................0.2 (0.008)
Repair accuracy
mm (in) . .....................................0.03 to 0.10 (0.0012 to 0.0039)
Armature shaft diameter
Pinion side
mm (in) .......................................14.2 (0.559)
Rear end
mm (in) .......................................11.0 (0.433)
Wear limit
mm (in) .......................................0.1 (0.004)
Bend limit
mm (in) .......................................0.08 (0.0031)
Gap "l" between and pinion front
mm (in) .......................................0.5 to 2.0 (0.020 to 0.079)
edge and pinion stopper
(2) Alternator
Rotor coil
Resistance
W [at 20°C (68°F)] ......................3.57
Brush
Brush length
mm (in) .......................................18 (0.71)
Wear limit
mm (in) ........................................10 (0.39)
Spring pressure
kg (lb) .........................................0.32 to 0.43 (0.71 to 0.95)
Slip ring
Outer diameter
mm (in) .......................................33 (1.30)
Reduction limit
mm (in) .......................................0.5 (0.020)
Repair accuracy
mm (in) .......................................0.05 (0.0020)
4-87
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