3126 Industrial Engine Caterpillar


Electric Starting Motor

Usage:

3126 3TR



Illustration 1g00282688

Typical example




Illustration 2g00489813

Typical solenoid connections

When the electric starting motor is viewed from the drive end, the motor rotates in the following direction. ... Clockwise

No load conditions at 25 °C (77 °F)

Speed ... 7018 ± 1517 rpm
Current ... 125.5 ± 27.5 amp
Voltage ... 11 V

(1) Tighten the nut on the battery terminal to the following torque. ... 30.5 ± 3.5 N·m (22 ± 3 lb ft)

(2) Tighten the ground terminal to the following torque. ... 30.5 ± 3.5 N·m (22 ± 3 lb ft)

(3) Tighten the nut to the following torque. ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(4) Tighten the nut on the switch terminal to the following torque. ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(5) Tighten the nut on the motor terminal to the following torque. ... 8 ± 3 N·m (71 ± 27 lb in)

(6) Tighten the nut on the motor frame terminal to the following torque. ... 8 ± 3 N·m (71 ± 27 lb in)

Solenoid

Current draw at 12 V and 25 °C (77 °F)

Pull-in windings ... 89 ± 5 amp
Hold-in windings ... 23 ± 2 amp maximum

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