C3.3 Industrial Engine Caterpillar

12 Volt Alternator

Illustration 1	g00959541
A typical alternator

(1) Tighten terminal nut "W" to the following torque. ... 2 N·m (17 lb in)

(2) Tighten terminal nut "D+" to the following torque. ... 4.3 N·m (38 lb in)

(3) Tighten terminal nut "B+" to the following torque. ... 4.3 N·m (38 lb in)

Tighten the pulley nut (not shown) to the following torque. ... 80 N·m (59 lb ft)

Alignment of the alternator pulley to the crankshaft pulley ... ± 2.4 mm ( ± 0.0945 inch)

Rotation ... clockwise

Polarity ... Negative earth

V-Belt

Note: The V-belt must be checked by a gauge. Refer to Operation and Maintenance Manual, "Alternator and Fan Belts - Inspect/Adjust/Replace" for the correct type of gauge in order to check the V-belt.

Initial V-belt tension ... 535 N (120 lb)

Used V-belt tension ... 355 N (80 lb)