D379, D398, D399 INDUSTRIAL & MARINE ENGINES Caterpillar

6N6002 or 6N6003 (Ingersoll-Rand Number 150 BMP-E78RH-54)

Output torque ... 50 lb. ft.(70 N·m)

with pinion speed of ... 2240 rpm

at air pressure to motor of ... 120 psi(830 kPa)

Rotation is clockwise when seen from drive end.

(1) Torque for bolts of rear cover (tighten bolts evenly) ... 20 to 25 lb. ft.(25 to 35 N·m)

(2) Torque for bolts of pinion housing (tighten bolts evenly) ... 100 lb. in.(11.3 N·m)

3H3171 (Schwitzer Number L-125354 Model 30R)

Output torque ... 82 lb. ft.(113 N·m)

with motor at ... 3600 rpm

at a pressure of ... 100 psi(690 kPa)

Horsepower ... 6.7

(1) Clearance between rotor and end plate ... .003 in.(0.08 mm)