TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 1-14 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - CONTINUED 1-14.4 Location and Description of Overall Cab Electrical System - Continued OVERALL ELECTRICAL SYSTEM BLOCK DIAGRAM, CAB (M109A2/M109A3 HOWITZERS) NOTE Some howitzers are only equipped with 3 contact arm assemblies. LEGEND: 1. Contact arm assembly (3 or 5) 2. Amplifier AM1780/VRC 3. Power relay box assembly 4. Gunner’s selector switch box assembly 5. Pressure switch 6. Power pack assembly 7. Direct current motor 8. Intercom control box C2298/VRC (2) 9. 10. 11. 12. 13. 14. 15. 16. Elevation selector valve assembly Assistant gunner’s control handle M15 elevation quadrant M117/M117A2 panoramic telescope M118A2/M118A3 elbow telescope Traverse mechanism bypass valve assembly Traverse mechanism clutch Dome light assemblies (3) 1-20