TM 5-3810-307-24-2-2
Air Equipment - General Information
Air Compressor
The air equipment group consists of Cummins single and two cylinder air compressors, compressor check valves
and air and coolant piping. Two cylinder air compressors used on B & C engines are normally manufactured by
Bendix & Midland.
The air compressor is lubricated by engine lubricating oil which enters the compressor through a drilling in the
support. The oil lubricates the connecting rod bearings and the crankshaft. The oil then flows to the air compressor
crankcase and returns to the engine through a drain passage located in the air compressor support.
The air compressor is cooled by the engine coolant. Only the cylinder head is cooled on most single cylinder air
compressors. Both the cylinder head and cylinders are normally cooled on the two cylinder air compressor.
Service information, specifications, and repair of Cummins air compressors are contained in the following
publications:
Holset 55191 - Single Cylinder
8.5 CFM Air Compressor
Rebuild Manual
Bulletin #3810433
Holset SS296 - Single Cylinder
13.2 C.F.M. Air Compressor Bulletin # 3810242
Holset SS338 - Single Cylinder
15.0 CFM Air Compressor
Bulletin #3810457
Instructions for testing and repairing air cranking motors and air compressors not manufactured by Cummins, can
be obtained from the original equipment manufacturers.
The following list contains the addresses of suppliers of air equipment for use on Cummins engines:
U.S.A.
Canada
Bendix H.V.S.G.
Bendix H.V.S.G.
901 Cleveland St.
P.O. Box 5712
Elyria, OH 44036
1005 Wilton Grove Rd.
Attention: Technical Services Dept.
London Ontario, Canada N6A458
Attention: Technical Services Dept.
Engine Starting Systems
Allen and Martinsville Rd.
P.O. Box 1776
International
Liberty Corner, NJ 07938
Bendix H.V.S.G. Europe Ltd.
Midland Brake, Inc.
66 Grosvenor St.
490 South Chestnut St.
London, England W1X9OB
Owosso, Ml 48867
Attention: Technical Services Dept.
