BENDIX BW1639 Manual Do Utilizador

BENDIX

®

 TU-FLO

®

 550 AIR COMPRESSOR

(CROSS SECTION)

BENDIX

®

 TU-FLO

®

 550 AIR COMPRESSOR

(EXTERIOR)

AIR DISCHARGE

WATER OUTLET

PIECE NO.

TAG

GOVERNOR

MOUNTING

PAD

CRANKCASE

PISTON  RINGS

PISTON

CRANKSHAFT

CONNECTING

ROD

INLET VALVE 

SEAT

UNLOADER

INLET VALVE

CYLINDER

HEAD

END VIEW OF CYLINDER HEAD

DISCHARGE

VALVE SPRING

DISCHARGE

VALVE

DISCHARGE

VALVE STOP

AIR INLET

CRANKCASE

INLET

INLET VALVE

SPRING

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 Bendix

®

 Tu-Flo

®

 550 

compressor is a two cylinder single stage, reciprocating 
compressor with a rated displacement of 13.2 cubic feet 
per minute at 1250 RPM.

The compressor assembly consists of two major 
subassemblies, the cylinder head and the crankcase. The 
cylinder head is an iron casting which houses the inlet, 
discharge, and unloader valving. (See Figure 1.)  The 
cylinder head contains the air inlet port and is designed 
with both top and side air discharge ports. Three water 
coolant ports provide a choice of coolant line connections. 
Governor mounting surfaces are provided at both the front 
and the rear of the cylinder head.  The head is mounted 
on the crankcase and is secured by six cap screws. The 
Tu-Flo

®

 550 compressor is designed such that the cylinder 

head can be installed in one of two positions which are 180 
degrees apart. The crankcase houses the cylinder bores, 
pistons, crankshaft and main bearings, and provides the 
fl ange or base mounting surface.

DISCHARGE

VALVE SEAT

UNLOADER

COVER

WATER

INLET