C7 Petroleum Engines Caterpillar

Electric Starting Motor

Usage:

C7 C7P

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Illustration 1	g01451367

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Illustration 2	g01451366

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

No load conditions at 25 °C (77 °F)

Speed ... 6900 ± 1800 rpm

Current ... 150.5 ± 27.5 Amp

Voltage ... 11 VDC

(A) Clearance between the pinion and the housing ... 9.1 mm (0.36 inch)

(1) Final installation torque for the ground terminal nut ... 30.5 ± 3.5 N·m (270 ± 30 lb in)

Note: A maximum of three cable terminals or wire terminals may be used with the battery terminal nut (2). A maximum of two of the cable terminals may be equal to or greater than 0 AWG.

(2) Final installation torque for the battery terminal nut ... 30.5 ± 3.5 N·m (270 ± 30 lb in)

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

Note: The switch terminal must be insulated with heat shrink tubing. Do not use molded terminals.

(4) Final installation torque for the switch terminal nut ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(5) Final installation torque for the motor terminal nut ... 30.5 ± 3.5 N·m (270 ± 30 lb in)

(6) Final installation torque for the bolt for the motor frame terminal ... 8 ± 3 N·m (70 ± 27 lb in)

Solenoid kit

Current draw at 10 V and 25 °C (77 °F)

Pull-in windings ... 97 Amp

Hold-in windings ... 18 Amp

Maximum rated current ... 1600 Amp

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