3100 HEUI TRUCK ENGINE Caterpillar

(1) Air compressor.

(2) Bolt. Mounting procedure for air compressor:

a. Tighten four bolts (2 and 4) finger tight.

b. Tighten four bolts to ... 55 ± 10 N·m (41 ± 7 lb ft)

(3) Nut. Tighten nut to ... 160 ± 15 N·m (120 ± 11 lb ft)

(4) Bolt.

(5) Gear.

(6) Bolt. On engines equipped with this hose assembly, tighten bolt holding compressor line to a torque of ... 30 ± 7 N·m (22 ± 5 lb ft)

Front View Of 118-7281 Lines Group

Front View Of 122-1706 Lines Group

(1) Air compressor.

(7) Water temperature regulator housing.

(8) Bolt. On engines equipped with water lines group illustrated, tighten bolt to a torque of ... 55 ± 10 N·m (41 ± 7 lb ft)

(9) Water pump.