BENDIX SD-01-670 User Manual

The function of the air compressor is to provide and 
maintain air under pressure to operate devices in the 
air brake and/or auxiliary air systems. The DuraFlo

 

596

™

compressor is a two cylinder reciprocating compressor 
with a rated displacement of 27 cubic feet per minute at 
1250 RPM.

The compressor consists of a water cooled cylinder head 
and valve body assembly and an air cooled integral 
crankcase and cylinder block. The cylinder head is an 
aluminum casting which contains the required air and water 
ports as well as inlet check valves for each cylinder. The 
valve body assembly consists of steel upper and lower 
halves, each of which incorporate various valve openings 
and channels for conducting air and engine coolant into 
and out of the cylinder head. The discharge valves for each 
cylinder are part of the valve body assembly. The valve 

WATER

INLET

PORT (2)

WATER

 OUTLET

PORT (1)

CRANKCASE

DISCHARGE

SAFETY VALVE

CRANKCASE

BOTTOM

COVER (2)

CYLINDER

HEAD

VALVE BODY 

ASSEMBLY

REAR END

COVER OIL 

PORT

CRANKSHAFT

PISTON

CONNECTING 

ROD

PISTON RINGS

CYLINDER HEAD

DISCHARGE 

VALVE

VALVE BODY 

ASSEMBLY

CRANKCASE

DISCHARGE 

VALVE HOLDER

DISCHARGE 

PORTS (2)

DISCHARGE 

VALVE

DISCHARGE VALVE 

HOLDER

DISCHARGE 

CAVITY

PISTON

CYLINDER BORE

UNLOADER

PORT

VIEW OF CYLINDER HEAD AND ONE CYLINDER BORE

Š