3054 Engine Caterpillar

Illustration 1	g00295811

(1) Fan drive bearing

Bore of housing for bearing ... 41.965 to 41.978 mm (1.6522 to 1.6537 inch)

Outside diameter of bearing ... 41.99 to 42.00 mm (1.653 to 1.654 inch)

Interference fit of bearing in housing ... 0.009 to 0.035 mm (0.0004 to 0.0014 inch)

(2) Fan drive shaft

Bore of hub on shaft ... 21.938 to 21.958 mm (0.8637 to 0.8645 inch)

Outside diameter of shaft ... 21.987 to 22.000 mm (0.8656 to 0.8661 inch)

Interference fit of shaft in hub ... 0.029 to 0.062 mm (0.0011 to 0.0024 inch)

Maximum permissible end play of shaft ... 0.20 mm (0.008 inch)

(3) Install the hub on the shaft to the following dimension: ... 115.3 mm (4.54 inch)

Tighten the bolts that fasten the fan drive to the engine to the following torque: ... 44 N·m (33 lb ft)

Tighten the bolts for the fan drive pulley (not shown) to the following torque:

M8 ... 22 N·m (16 lb ft)

M10 ... 44 N·m (33 lb ft)

Tighten the bolts for the fan (not shown) to the following torque:

M8 ... 22 N·m (16 lb ft)