D348 INDUSTRIAL & MARINE ENGINES Caterpillar

(1) Torque for nut holding pulley ... 75 ± 5 lb.ft.(100 ± 7 N·m)

(2) Torque for output terminal ... 55 to 75 lb.in.(6.3 to 8.5 N·m)

4N3987 30 or 32V (Delco-Remy Number 1117733)

Polarity: negative, positive or insulated.

Circuit ... B

Rotation can be either direction.

Output at 36V and 2000 rpm (cold) ... 25A

Output at 36V and 6500 rpm (cold) ... 60A

(1) Torque for nut holding pulley ... 75 ± 5 lb.ft.(100 ± 7 N·m)

(2) Torque for output terminal ... 55 to 75 lb.in.(6.3 to 8.5 N·m)

1N9406 30 or 32V (Delco-Remy Number 1117237)

Polarity is negative ground.

Circuit ... B

Speed for testing ... 5000 rpm

Rotation can be either direction.

Output when cold:

(1) Torque for nut holding pulley ... 75 ± 5 lb.ft.(100 ± 7 N·m)

(2) Toque for output terminal ... 10 ± 1 lb.ft.(14 ± 1 N·m)

Torque for "ground" temrinal on top of alternator ... 50 to 60 lb.in.(5.7 to 6.8 N·m)

5S9088 24 V (Delco-Remy Number 1117226 or 1117236)

Polarity is negative ground.

Circuit ... B

Speed for testing ... 5000 rpm

Rotation can be either direction.

Output when cold:

(1) Torque for nut holding pulley ... 75 ± 5 lb.ft.(100 ± 7 N·m)

(2) Torque for output terminal ... 10 ± 1 lb.ft.(14 ± 1 N·M)

Torque for bolts holding bottom of alternator to bracket ... 24 ± 3 lb.ft.(30 ± 4 N·m)

Torque for bolt holding top of alternator to adjusting strap ... 56 ± 7 lb.ft.(75 ± 9 N·m)

5L6468 24V (Delco-Remy Number 1117072)

Polarity is negative ground.

Rotation is clockwise when seen from drive end.

Output at 1500 rpm and 28 V (cold) ... ^*26 A

Output at 2500 rpm and 28 V (cold) ... ^*61 A

Rated output (hot) ... 60 A

Field current at 24 V and 80°F (27°C) ... 4 to 4.4 A

(1) Torque for nut ... 50 to 60 lb.ft.(70 to 80 N·m)

(2) Tension of brush spring ... 10 oz.(2.8 N)

5L1243 32V (Delco-Remy Number 1117074)

Polarity is negative ground.

Rotation is clockwise when seen from drive end.

Output at 1800 rpm and 37.5 V (cold) ... ^*20 A

Output at 2500 rpm and 37.5 V (cold) ... ^*51 A

Rated output (hot) ... 60 A

Field current at 32 V and 80°F (27°C) ... 2.4 to 2.7 A

(1) Torque for nut ... 50 to 60 lb.ft.(70 to 80 N·m)

(2) Tension of brush spring ... 10 oz.(2.8 N)