C-15 and C-16 Industrial Engines Caterpillar


Alternator and Regulator

Usage:

MTC855 818

Type 1




Illustration 1g00286493



Illustration 2g00286494

Note: Load the battery with a carbon pile 4C-4911 Battery Load Tester in order to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 54 Amp

Minimum full load current at 1500 rpm ... 19 Amp

Output voltage ... 27.5 ± 1.0 V

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

(2) Torque for output terminal ... 7.1 ± 0.8 N·m (63 ± 7 lb in)

..0

(3) 3T-6354 Regulator Assembly

Voltage setting ... No Adjustment

Permissible voltage range ... 26.5 to 28.5 V

Voltage rating ... 24 V

Type 2




Illustration 3g00286495



Illustration 4g00286496

Note: Load the battery with a carbon pile 4C-4911 Battery Load Tester in order to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 42 Amp

Minimum full load current at 2000 rpm ... 16 Amp

Output voltage ... 28 ± 1 V

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

(2) Torque for the pulley nut ... 102 ± 7 N·m (75 ± 5 lb ft)

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

3T-6354 Regulator Assembly

Voltage setting ... No Adjustment

Permissible voltage range ... 27 to 29 V

Voltage rating ... 24 V

Type 3




Illustration 5g00289617



Illustration 6g00289618

Note: Load the battery with a carbon pile 4C-4911 Battery Load Tester in order to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Clockwise

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

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

Output voltage ... 14.0 ± 0.5 V

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

(2) Positive terminal torque ... 11.3 ± 2.3 N·m (100 ± 20 lb in)

(3) Negative terminal torque ... 6.2 ± 0.6 N·m (55 ± 5 lb in)

(4) 3E-5451 Regulator Assembly

Voltage setting ... No Adjustment

Permissible voltage range ... 13.5 to 14.5 V

Voltage rating ... 12 V

Type 4




Illustration 7g00390821



Illustration 8g00390822

Note: Load the battery with a carbon pile 4C-4911 Battery Load Tester in order to get the maximum alternator output.

Polarity ... Negative Ground

Rotation ... Either Direction

Minimum full load current at 5000 rpm ... 94 Amp

Minimum full load current at 2000 rpm ... 9 Amp

Output voltage ... 27.5 ± 1.0 V

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

(2) Torque for the pulley nut ... 102 ± 7 N·m (75 ± 5 lb ft)

(3) Torque for the output terminal nut ... 7.1 ± 0.8 N·m (63 ± 7 lb in)

3T-6354 Regulator Assembly

Voltage setting ... No Adjustment

Permissible voltage range ... 13.5 to 14.5 V

Voltage range ... 27.5 ± 1.0 V

Voltage rating ... 24 V

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