3126B Industrial Engine Caterpillar


Alternator and Regulator

Usage:

SPP101 715



Illustration 1g00292354



Illustration 2g00292355

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

9W-3034 Alternator

Polarity ... Negative ground
The rotation of the alternator is viewed from the pulley. ... Clockwise

The minimum full load current at 5000 rpm is the following value. ... 47 Amp

The minimum full load current at 1500 rpm is the following value. ... 13.5 Amp

Output voltage ... 28.0 ± 1.0 V

(1) Tighten the shaft nut to the following torque. ... 50 ± 5 N·m (37 ± 4 lb ft)

(2) Tighten the screw to the following torque. ... 3.6 ± 0.8 N·m (32 ± 7.0 lb in)

(3) Tighten the nut to the following torque. ... 7.75 ± 0.75 N·m (69± 6.0 lb in)

(4) Regulator

Voltage setting ... No adjustment
Permissible voltage range ... 27 to 29 V

107-7977 Alternator

Polarity ... Negative ground
Rotation of the alternator is viewed from the pulley. ... Clockwise

The minimum full load current at 5000 rpm is the following value. ... 68 Amp

The minimum full load current at 1500 rpm is the following value. ... 31 Amp

Output voltage ... 28.0 ± 1.0 V

(1) Tighten the shaft nut to the following torque. ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Tighten the screw to the following torque. ... 6.2 ± 0.6 N·m (55 ± 5 lb in)

(3) Tighten the nut to the following torque. ... 7.1 ± 0.9 N·m (63 ± 8 lb in)

(4) Regulator

Voltage setting ... No adjustment
Permissible voltage range ... 27 to 29 V



Illustration 3g00758106



Illustration 4g00757919

5N-5692 Alternator

Polarity ... Negative ground
Rotation of the alternator is viewed from the pulley. ... Clockwise

Note: This alternator can rotate clockwise or counterclockwise.

The minimum full load current at 5000 rpm is the following value. ... 42.3 Amp

The minimum full load current at 2000 rpm is the following value. ... 15.8 Amp

Note: Typically, low speed tests call for a minimum speed of 1500 rpm. The low speed test for this alternator is 2000 rpm.

Output voltage ... 28.0 ± 1.0 V

(1) Tighten the shaft nut to the following torque. ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Tighten the screw to the following torque. ... 2.2 ± .25 N·m (19.47 ± 2.21 lb in)

(3) Tighten the nut to the following torque. ... 6.2 ± .6 N·m (54.87 ± 5.31 lb in)

(4) Regulator

Voltage setting ... No adjustment
Permissible voltage range ... 27 to 29 V
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.