3208 INDUSTRIAL ENGINE Caterpillar


Alternators and Regulators

Usage:

7G7889 Alternator (12V 60A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 60A

Minimum full load current at 1500 rpm ... 22A

Output voltage ... 14.0 ± 0.3V

(1) Shaft nut torque ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Torque for positive terminal nut ... 6.2 ± 0.6 N·m (55 ± 5 lb in)

(3) Torque for ground terminal nut ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(4) Regulator.

Voltage Setting ... No adjustment

Permissible voltage range ... 13.7 to 14.3V

3T6352 Alternator (24V 35A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 35A

Minimum full load current at 1500 rpm ... 11A

Output voltage ... 28 ± 1V

(1) Shaft nut torque ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Torque for positive terminal nut ... 6.2 ± 0.6 N·m (55 ± 5 lb in)

(3) Torque for the ground terminal nut ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(4) Regulator.

Voltage setting ... No adjustment

Permissible voltage range ... 27 to 29V

9X6796 Alternator (12V 115A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 107A

Minimum full load current at 1500 rpm ... 45A

Output voltage ... 14.0 ± 0.5V

(1) Shaft nut torque ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Terminal torques:

Torque for positive terminal nut ... 11.3 ± 2.3 N·m (100 ± 20 lb in)

Torque for ground terminal nut ... 6.2 ± 0.6 N·m (55 ± 5 lb in)

Regulator.

Voltage Setting ... No adjustment

Permissible voltage range ... 13.7 to 14.3V

7N9720 Alternator (24V 35A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Clockwise

Minimum full load current at 5000 rpm ... 35A

Minimum full load current at 1500 rpm ... 12A

Output voltage ... 27.5 ± 1.0V

(1) Shaft nut torque ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Regulator.

Voltage setting ... No adjustment

Permissible voltage range ... 26.5 to 28.5V

(3) Torque for positive terminal nut ... 14 ± 1 N·m (10 ± 1 lb ft)

(4) Torque for ground terminal nut ... 2.1 to 2.8 N·m (19 to 25 lb in)

100-5046 Alternator (24V 50A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 45A

Minimum full load current at 1500 rpm ... 14.5A

Output voltage ... 27.5 ± 1.0V

(1) Shaft nut torque ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Regulator.

Voltage setting ... No adjustment

Permissible voltage range ... 26.5 to 28.5V

(3) Torque for positive terminal nut ... 14 ± 1 N·m (10 ± 1 lb ft)

(4) Torque for ground terminal nut ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

9W3043 (24V 52A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 47A

Minimum full load current at 1500 rpm ... 13.5A

Output voltage ... 28 ± 1V

(1) Shaft nut torque ... 50 ± 5 N·m (37 ± 4 lb ft)

(2) Torque for B+ terminal nut ... 7.75 ± 0.25 N·m (70 ± 2 lb in)

(3) Torque for D+ terminal nut ... 1.70 ± 0.25 N·m (15 ± 2 lb in)

(4) Torque for B- terminal nut ... 3.60 ± 0.80 N·m (32 ± 7 lb in)

(5) Torque for R terminal nut ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

NOTE: R Terminal is the AC tap from stator and is identified by the letter W.

Regulator.

Voltage Setting ... No adjustment

8T9700 (12V 55A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Clockwise

Minimum full load current at 5000 rpm ... 50.4A

Minimum full load current at 1500 rpm ... 31.5A

Output voltage ... 14.0 ± 0.5

(1) Shaft nut torque ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Torque for battery terminal (B) ... 3.6 ± 0.8 N·m (32 ± 7 lb in)

(3) Torque for ignition terminal (IG) ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(4) Torque for R terminal ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(5) Torque for ground terminal (E) ... 3.6 ± 0.8 N·m (32 ± 7 lb in)

Regulator.

Voltage setting ... No adjustment

Permissible voltage range ... 14.25 ± 0.35V

9G4574 Alternator (24V 35A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 35.6A

Minimum full load current at 1500 rpm ... 15.8A

Output voltage ... 28 ± 1V

(1) Shaft nut torque ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Torque for positive terminal nut ... 14 ± 1 N·m (10 ± 1 lb ft)

(3) Torque for ground terminal nut ... 4.4 ± 1.0 N·m (39 ± 9 lb in)

(4) Regulator.

Voltage setting ... No adjustment

Permissible voltage range ... 27 to 29V

100-5045 Alternator (24V 50A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 44.6A

Minimum full load current at 1500 rpm ... 16.5A

Output voltage ... 28 ± 1V

(1) Shaft nut torque ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Torque for positive terminal nut ... 14 ± 1 N·m (10 ± 1 lb ft)

(3) Torque for ground terminal nut ... 4.4 ± 1.0 N·m (39 ± 9 lb in)

(4) Regulator.

Voltage setting ... No adjustment

Permissible voltage range ... 27 to 29V

7T2096 Alternator (12V 51A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 45A

Minimum full load current at 1500 rpm ... 14.5A

Output voltage ... 13.8 ± 0.2V

(1) Shaft nut torque ... 60 ± 7 N·m (44 ± 5 lb ft)

(2) Torque for stator terminal ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

Stator terminal is an AC tap from the stator.

(3) Torque for output terminal ... 3.7 to 4.5 N·m (33 to 40 lb in)

(4) Torque for negative terminal ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(5) Regulator.

Voltage setting ... No adjustment

Permissible voltage range ... 13.8 ± 0.2V

7T2095 Alternator (24V 35A)

NOTE: Load the battery with a carbon pile (4C4911 Battery Load Tester) to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 27.9A

Minimum full load current at 1500 rpm ... 10.8A

Output voltage ... 28.0 ± 1.0V

(1) Shaft nut torque ... 60 ± 7 N·m (44 ± 5 lb ft)

(2) Torque for stator terminal ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

Stator terminal is an AC tap from the stator.

(3) Torque for output terminal ... 3.7 to 4.5 N·m (33 to 40 lb in)

(4) Torque for negative terminal ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(5) Regulator.

Voltage setting ... No adjustment

Permissible voltage range ... 27.5 ± 1.0V

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