CAC-4029 Air Pump for Twin Cylinder Air Compressor

The CAC-4029 is an air compressor pump that was used by the DeVilbiss Air Power Company for many years on their line of single stage, twin cylinder oil lubricated air compressors.

CAC-4029 is most easily identified by its 4 bolt end plate, located behind the pump flywheel. The end plate houses the special, double lip crankshaft seal and the open needle bearing that supports the flywheel side of the crankshaft. A press fit, closed needle bearing supports the other end of the crankshaft.

This CAC-4029 was also used on the DeVilbiss DAC-7151 air compressor.

Specifications

Torque:

Head Bolt Studs: 25-30 ft./lbs.

Reed Valve Screens: 13-17 in./lbs.

Connecting Rod Bolts: 7-10 ft./lbs.

Crankshaft End Plate Bolts: 9-12 ft./lbs.

Base Bolts: 9-12 ft./lbs.

Flywheel: 15-20 ft./lbs.

Mounting:

6.5 in. x 6.5 in.