BLOCK AS-TERMINAL 4519478 - Caterpillar

Specifications
The 12 V and 24 V Type 1 Alternators
Illustration 1 g02149533
Typical example (1) Terminal "B+" Tighten the nut on the terminal to the following. ... 7.5 N m (66 lb in) (2) Terminal "D+" Tighten the nut on the terminal to the following torque. ... 2.2 N m (19 lb in) (3) Terminal "B-" (if equipped) Tighten the nut on the terminal to the following torque. ... 7 N m (62 lb in) (4) Terminal "W" Tighten the nut on the terminal to the following torque. ... 2.2 N m (19 lb in)Tighten the nut for the alternator pulley to the following torque. ... 95 N m (70 lb ft)Output The outputs of the alternators ... 55 Amp, 80 Amp, 100 Amp, 120 Amp, 150 Amp, or 175 AmpThe 24 V Type 1 Heavy Duty Alternator
Illustration 2 g01943778
Typical example (1) Terminal "B+" Tighten the nut on the terminal to the following. ... 7 N m (62 lb in) (2) Terminal "R" Tighten the nut on the terminal to the following torque. ... 2.2 N m (19 lb in) (3) Terminal "B-" Tighten the nut on the terminal to the following torque. ... 6 N m (53 lb in) (4) Terminal "I" Tighten the nut on the terminal to the following torque. ... 2.2 N m (19 lb in)Tighten the nut for the alternator pulley to the following torque. ... 102 N m (75 lb ft)Note: A washer must be installed between the grounding strap and the alternator at the "G" Terminal.Output The output of the alternator ... 105 AmpThe 24 V Type 2 Alternators
Illustration 3 g02149536
Typical example (1) Terminal "B-" Tighten the nut on the terminal to the following. ... 4 N m (35 lb in) (2) Terminal "B+" Tighten the nut on the terminal to the following torque. ... 18 N m (13 lb ft)Tighten the nut for the alternator pulley to the following torque. ... 126 N m (93 lb ft)Output The outputs of the alternators ... 80 Amp, 95 Amp or 150 AmpAlternator Bracket
Illustration 4 g01946433
Typical example (1) Tighten the setscrews that secure the alternator to the bracket to the following torque. ... 50 N m (37 lb ft) (2) Tighten the setscrews that secure the bracket to the cylinder block to the following torque. ... 44 N m (32 lb ft)Removal Procedure
Move battery disconnect switch to the OFF position.
Illustration 5 g03335616
Remove cover (1) .
Illustration 6 g03335623
Remove belt (2) from the alternator pulley. Refer to Operations and Maintenance Manual, "Belt - Inspect/Replace".
Illustration 7 g03335634
Remove bolt (3) and harness assembly .
Remove harness assembly (4) .
Remove nut (5) and harness assembly .
Illustration 8 g03335671
Remove four bolts (6) and alternator (7) .Installation Procedure
Install alternator (7) in the reverse order of removal.