Bendix Commercial Vehicle Systems TU-FLO 501 AIR COMPRESSOR 9/04 - Manual

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Bendix ® TU-FLO ® 501 Air Compressor
SD-01-337
DESCRIPTION AND OPERATION
General
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.
Description
The Tu-Flo ® 501 compressor is a two cylinder, single stage,
reciprocating compressor with a rated displacement of 12
cubic feet of air per minute at 1250 R.P.M.
The Tu-Flo ® 501 compressor is constructed from two major
assemblies, the head and the crankcase. The head houses
the discharge valving and is installed on the upper portion of
the crankcase. The crankcase is a one piece casting
combining the cylinder block and the crankcase. The upper
portion of the casting houses the cylinder bores and inlet
valving; and the lower portion, the crankshaft and main
bearings. Various mounting and drive configurations, required
by the numerous vehicle engine designs, are obtained by
bolting different mounting flanges, end covers, and base
adapters to the crankcase. Two horizontal governor mounting
pads are located on either side of the upper portion of the
crankcase to provide convenient governor mounting.
Two methods are employed for cooling the Tu-Flo ® 501
compressor during operation. The cylinder head is connected
to the engine’s cooling system, while the cylinder bore portion
of the crankcase has external fins for efficient air cooling.