Bendix Tu-Flo 550 Air Compressor - Service Data

NHTSA ID Number: 10163231

Manufacturer Communication Number: SD-01-333-US-004

Summary

Bendix® Tu-Flo® 550 Air Compressor service data sheet update.

 

1 Affected Product

Equipment

BRAND PART NO. PRODUCTION DATES
BENDIX BENDIX

DESCRIPTION

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 valves. (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° apart. The crankcase houses the cylinder bores, pistons, crankshaft and main bearings, and provides the flange or base mounting surface.

Various mounting and drive configurations, as shown in Figure 3, are supplied as required by the vehicle engine designs. A nameplate identifying the compressor piece number and serial number is attached to the side of the crankcase. (See Figure 4).

 

OPERATION

The compressor is driven by the vehicle engine and is operating continuously while the engine is running. Actual compression of air is controlled by the compressor unloading mechanism and the governor. The governor, which is generally mounted on the compressor, maintains the brake system air pressure to a preset maximum and minimum pressure level.



SD-01-333
Rev. 004

https://www.nhtsa.gov/recalls?nhtsaId=10163231

https://static.nhtsa.gov/odi/tsbs/2019/MC-10163231-9999.pdf

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Last update on 2020-07-06 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2020-07-06 / Affiliate links / Images from Amazon Product Advertising API

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