Alternator
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Illustration 1 | g00624846 |
Front View of the 30-SI Alternator |
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Illustration 2 | g00624845 |
Side View of the 30-SI Alternator |
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Illustration 3 | g00624843 |
Rear View of the 30-SI Alternator |
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Illustration 4 | g00659616 |
Front View of the 34-SI Alternator |
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Illustration 5 | g00659997 |
Side View of the 34-SI Alternator |
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Illustration 6 | g00660002 |
Rear View of the 34-SI Alternator |
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Specifications for 30-SI Alternators     | |||||
---|---|---|---|---|---|
Part Number Remanufactured Part Number     |
4N-3987 OR-5204     |
4N-3986 OR-5203     |
114-2401 OR-8997     |
9X-7803 OR-3749     |
8C-6163 OR-1699     |
Voltage Rating     | 32V     | 24V     | 24V     | 24V     | 12V     |
Current     | 60A     | 60A     | 75A     | 100A     | 105A     |
Application     | Heavy Duty     | Heavy Duty     | Heavy Duty     | Heavy Duty     | Heavy Duty     |
Approved for Marine Use     | Yes     | Yes     | No     | No     | Yes     |
Weight     | 11.9 kg (26.2 lb)     | 11.9 kg (26.2 lb)     |
11.9 kg (26.2 lb)     |
11.9 kg (26.2 lb)     |
11.9 kg (26.2 lb)     |
Polarity     | Negative Ground Insulated Case     |
Negative Ground Insulated Case     |
Negative Case Ground     | Negative Case Ground     | Negative Ground Insulated Case     |
Minimum Full Load Current (Cold) at 5000 rpm     | 60A     | 54A     | 67.5A     | 94A     | 96A     |
Minimum Full Load Current (Cold) at 1500 rpm     | 20A     | 19A     | 26A (1) (2)     | 9A (1) (3)     | 42A     |
Turn-on Speed     | 2000 rpm     | 2600 rpm     | 3000 rpm     | 2600 rpm     | 2700 rpm     |
Output Voltage     | 36.6 ±1.5 V     | 28 ±1 V     | 27.5 ±1.0 V     | 28 ±1 V     | 14 ±0.5 V     |
Rotation (4)     | CW CCW     |
CW CCW     |
CW CCW     |
CW CCW     |
CW CCW     |
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( 1 ) | Minimum Full Load Current (Cold) at 2000 rpm |
( 2 ) | The minimum speed of the alternator should be 1800 rpm at low engine idle. |
( 3 ) | The minimum speed of the alternator should be 2300 rpm at low engine idle. |
( 4 ) | The rotation is viewed from the pulley. |
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Specifications for 34-SI Alternators     | ||||
---|---|---|---|---|
Part Number     | 169-4319     | 167-7812     | 165-5140     | 167-7816     |
Voltage Rating     | 24V     | 24V     | 24V     | 12V     |
Current     | 75A     | 75A     | 100A     | 110A     |
Application     | Heavy Duty Pad Mount     |
Heavy Duty     | Heavy Duty     | Heavy Duty     |
Approved for Marine Use     | Yes     | Yes     | Yes     | Yes     |
Weight     | 11.9 kg (26.2 lb)     |
11.9 kg (26.2 lb)     |
11.9 kg (26.2 lb)     |
11.9 kg (26.2 lb)     |
Polarity     | Negative Ground Insulated Case     |
Negative Ground Insulated Case     |
Negative Ground Insulated Case     |
Negative Ground Insulated Case     |
Minimum Full Load Current (Cold) at 5000 rpm     | 67.5A     | 67.5A     | 94A     | 99A     |
Minimum Full Load Current (Cold) at 1500 rpm     | 26A (1) (2)     | 26A (1) (2)     | 9A (1) (2)     | 42A     |
Turn-on Speed     | 3000 rpm     | 3000 rpm     | 2600 rpm     | 2700 rpm     |
Output Voltage     | 28 ±1 V     | 28 ±1 V     | 28 ±1 V     | 14 ±1 V     |
Rotation (3)     | CW CCW     |
CW CCW     |
CW CCW     |
CW CCW     |
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( 1 ) | Minimum Full Load Current (Cold) at 2000 rpm |
( 2 ) | The minimum speed of the alternator should be 1800 rpm at low engine idle. |
( 3 ) | The rotation is viewed from the pulley. |
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Torque Specifications for the 30-SI Alternator     | |||||
---|---|---|---|---|---|
Part Number Remanufactured Part Number     |
4N-3987 OR-5204     |
4N-3986 OR-5203     |
114-2401 OR-8997     |
9X-7803 OR-3749     |
8C-6163 OR-1699     |
Pulley Nut     | 102 ± 7 N·m (75 ± 5 lb ft)     |
102 ± 7 N·m (75 ± 5 lb ft)     |
102 ± 7 N·m (75 ± 5 lb ft)     |
102 ± 7 N·m (75 ± 5 lb ft)     |
102 ± 7 N·m (75 ± 5 lb ft)     |
Cover for the Rectifier     | 5.3 N·m (47 lb in)     |
5.3 N·m (47 lb in)     |
5.3 N·m (47 lb in)     |
5.3 N·m (47 lb in)     |
5.3 N·m (47 lb in)     |
Cover Plate Regulator and Mounting Plate Heat Sink     |
3 N·m (27 lb in)     |
3 N·m (27 lb in)     |
3 N·m (27 lb in)     |
3 N·m (27 lb in)     |
3 N·m (27 lb in)     |
+ Battery Terminal     | 7.1 ± .8 N·m (62.8 ± 7.1 lb in)     |
7.1 ± .8 N·m (62.8 ± 7.1 lb in)     |
7.1 ± .8 N·m (62.8 ± 7.1 lb in)     |
7.1 ± .8 N·m (62.8 ± 7.1 lb in)     |
7.1 ± .8 N·m (62.8 ± 7.1 lb in)     |
- Battery Terminal     | 6.2 ± .6 N·m (54.9 ± 5.3 lb in)     |
6.2 ± .6 N·m (54.9 ± 5.3 lb in)     |
6.2 ± .6 N·m (54.9 ± 5.3 lb in)     |
6.2 ± .6 N·m (54.9 ± 5.3 lb in)     |
6.2 ± .6 N·m (54.9 ± 5.3 lb in)     |
"R" Terminal Nut for the Regulator Stud     |
2 N·m (18 lb in)     |
2 N·m (18 lb in)     |
2 N·m (18 lb in)     |
2 N·m (18 lb in)     |
2 N·m (18 lb in)     |
Nut for the Hex Mounting Bolt Bolt for the Adjusting Lug     |
88 N·m (65 lb ft)     |
88 N·m (65 lb ft)     |
88 N·m (65 lb ft)     |
88 N·m (65 lb ft)     |
88 N·m (65 lb ft)     |
Frame Bolts     | 6.2 N·m (55 lb in)     |
6.2 N·m (55 lb in)     |
6.2 N·m (55 lb in)     |
6.2 N·m (55 lb in)     |
6.2 N·m (55 lb in)     |
Ground Screw     | 6 N·m (55 lb in)     |
6 N·m (55 lb in)     |
6 N·m (55 lb in)     |
6 N·m (55 lb in)     |
6 N·m (55 lb in)     |
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Torque Specifications for the 34-SI Alternator     | ||||
---|---|---|---|---|
Part Number     | 169-4319     | 167-7812     | 165-5140     | 167-7816     |
Pulley Nut     | 102 ± 7 N·m (75 ± 5 lb ft)     |
102 ± 7 N·m (75 ± 5 lb ft)     |
102 ± 7 N·m (75 ± 5 lb ft)     |
102 ± 7 N·m (75 ± 5 lb ft)     |
Cover for the Rectifier     | 5.3 N·m (47 lb in)     |
5.3 N·m (47 lb in)     |
5.3 N·m (47 lb in)     |
5.3 N·m (47 lb in)     |
Cover Plate Regulator and Mounting Plate Heat Sink     |
3 N·m (27 lb in)     |
3 N·m (27 lb in)     |
3 N·m (27 lb in)     |
3 N·m (27 lb in)     |
+ Battery Terminal     | 7.1 ± .8 N·m (62.8 ± 7.1 lb in)     |
7.1 ± .8 N·m (62.8 ± 7.1 lb in)     |
7.1 ± .8 N·m (62.8 ± 7.1 lb in)     |
7.1 ± .8 N·m (62.8 ± 7.1 lb in)     |
- Battery Terminal     | 6.2 ± .6 N·m (54.9 ± 5.3 lb in)     |
6.2 ± .6 N·m (54.9 ± 5.3 lb in)     |
6.2 ± .6 N·m (54.9 ± 5.3 lb in)     |
6.2 ± .6 N·m (54.9 ± 5.3 lb in)     |
"R" Terminal Nut for the Regulator Stud     |
2 N·m (18 lb in)     |
2 N·m (18 lb in)     |
2 N·m (18 lb in)     |
2 N·m (18 lb in)     |
Nut for the Hex Mounting Bolt Bolt for the Adjusting Lug     |
88 N·m (65 lb ft)     |
88 N·m (65 lb ft)     |
88 N·m (65 lb ft)     |
88 N·m (65 lb ft)     |
Frame Bolts     | 6.2 N·m (55 lb in)     |
6.2 N·m (55 lb in)     |
6.2 N·m (55 lb in)     |
6.2 N·m (55 lb in)     |
Ground Screw     | 6 N·m (55 lb in)     |
6 N·m (55 lb in)     |
6 N·m (55 lb in)     |
6 N·m (55 lb in)     |
The results for a 12 volt 30-SI and 34-SIAlternator's rotor field winding test at 27 °C (80 °F) are in the following list:
- 5.5 to 9.0 Amperes
- 1.4 to 2.1 Ohms
The results for a 24 volt 30-SI and 34-SIAlternator's rotor field winding test at 27 °C (80 °F) are in the following list:
- 2.9 to 3.6 Amperes
- 6.9 to 8.1 Ohms
The results for a 32 volt 30-SI Alternator's rotor field winding test at 27 °C (80 °F) are in the following list:
- 1.4 to 1.9 Amperes
- 17.0 to 21.4 Ohms
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Illustration 7 | g00650373 |
30-SI Alternator Schematic (Negative Ground Model) |
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Illustration 8 | g00624983 |
34-SI Alternator Schematic (Negative Ground Model) |
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Illustration 9 | g00625062 |
34-SI Alternator Schematic (Insulated Model) |
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