TM 5-3805-281-24-2
Robert Bosch Starting Motor Repair
ROBERT BOSCH STARTING MOTOR
SPECIFICATIONS
NO LOAD TEST
John Deere
Bosch
System
Rating
Volts
Amps
rpm
60
Part No.
Model No.
Voltage
kW
(Max.)
kW
10
2
AL110503
0 001 367 078
12
3.0
11.5
130
700080007000
AL110504
0 001 369 022
12
3.1
11.511.5
170
AL41247
0 001 362 312
12
2.7
125
AL62690
0 001 362 316
12
2.7
11.511.511.5
125
700080007000
AL62772
0 001 369 005
12
3.1
170
AL78760
0 001 367 075
12
3.0
130
AL81154
0 001 367 077
12
3.0
11.511.511.5
130
7000
RE30493
0 001 362 324
12
2.7
125
7000
RE65169
0 001 369 021
12
3.1
170
8000
Item
Specification
Minimum voltage of solenoid .................................................................................................
8 volts
Testing armature for grounded circuit, voltage .....................................................................
40 volts a.c.
Testing field coils for grounded circuit, voltage .....................................................................
40 volts a.c.
Testing field coils for open windings, voltage .......................................................................
6--12 volts d.c.
Testing brush holder insulation for grounded circuit, voltage ...............................................
40 volts a.c.
2.7 kW Starting Motor
Minimum diameter of commutator (When turning down, armature shaft locating points
are slightly off center.) ............................................................................................................
39.5 mm (1.555 in.)
Commutator out-of-roundness, max ......................................................................................
0.03 mm (0.0012 in.)
Out-of-roundness of stack of armature plates, max ..............................................................
0.05 mm (0.002 in.)
Undercutting insulation after initial turn-down of commutator by approximately:
(then finish-turn) .....................................................................................................................
0.5--0.8 mm (0.02--0.03 in.)
Brush pressure (check with a spring scale) ...........................................................................
26--28 N (5.7--6 lb)
Minimum brush length ............................................................................................................
7.5 mm (0.30 in.)
Armature end play ..................................................................................................................
0.1--0.3 mm (0.004--0.012 in.)
Armature braking torque ........................................................................................................
0.45--0.75 Nm (4.0--6.6 in-lb)
Overrunning torque ................................................................................................................
0.40--0.55 Nm (3.5--4.8 in-lb)
3.0 and 3.1 kW Starting Motor
Minimum diameter of commutator (important for turning down:
Note: Armature shaft locating points are slightly off center) ..................................................
42.5 mm (1.67 in.)
Commutator out-of roundness, max .......................................................................................
0.03 mm (0.0012 in.)
Out-of roundness of stack of armature plates, max ...............................................................
0.05 mm (0.002 in.)
Undercutting insulation after initial turn-down of commutator by approximately:
(then finish-turn) ......................................................................................................................
0.5--0.8 mm (0.02--0.03 in.)
Minimum brush length .............................................................................................................
7.5 mm (0.30 in.)
Armature end play ...................................................................................................................
0.1--0.3 mm (0.003--0.012 in.)
Armature braking torque .........................................................................................................
0.5--1.2 Nm (0.43--1.40 in-lb)
Overrunning torque .................................................................................................................
0.35--0.65 Nm (0.30--0.56 in-lb)
RG,RG34710,2339
1915MAR971/1
