TM 9-2320-260-34-1
C O M P R E S S E D AIR AND BRAKE SYSTEMS MAINTENANCE
Section I. Description and Data (page 11-1)
Section II. Air Compressor and Service Brake Maintenance (page 11-3)
Section III. Air-Hydraulic System Maintenance (page 11-30)
Section I. DESCRIPTION AND DATA
11-1. DESCRIPTION - AIR COMPRESSOR
a. The single cylinder air compressor is a standard component of NHC-250 diesel engines.
b. The air compressor is driven from the accessory drive gear in the engine front gearcase. A flange on the
air compressor mounts to the engine accessory drive, which mounts directly to the front gearcase. The air
compressor is cooled and lubricated by engine cooling and lubrication systems.
1. Coolant Inlet and Outer Ports
5. Intake Valve
2. Unloader Valve
6. Exhaust Valve
3. Air Governor Connection
7. Lubrication Passage
4. Air Inlet
