TM-9-2350-277-20-5 Unit Maintenance Manual Volume 5 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-5 REPLACE M3 NBC HEATERS AND CONTROLLERS (M113A3 ONLY) — Continued 0794 00 INSTALLATION NOTE Before installing driver’sstation heater, make sure both end adapters are adjusted for routing the hose under the welded bracket and toward the roadside hull. If installing a new heater, remove the controller portion from the heater and adjust the adapters for routing. NOTE To insure a good electrical ground, removepaint from around mounting hole. Install toothed washer against surface where paint was removed, then ground lead terminal. The longer screw is where the combined ground leads are secured. Do not include both ends of the driver’s heaters ground lead terminal to the same location. 1. If installing a new heater, disassemble the controller from the heater body. Discard the hardware securing the controller to the heater and use the hardware listed in TM 9-2350-277-24P for securing the controller. 2. Install two screws (22), four washers (24), two lockwashers (26), two nuts (27), and driver’s heater (4) on welded mount. 3. Install screw (22), ground lead terminal (23), new lockwasher (26), washer (24), new lock washer (26), and nut (27) securing the driver’s heater (4) on welded mount. 4. Install the longer screw (22), three ground lead terminals (23), new lock washer (26), washer (24), new lockwasher (26), and nut (27) securing the driver’s heater (4) on welded mount. 5. Install driver’s outlet hose (20) and driver’s inlet hose (21) on driver’s heater (4) and tighten clamps (19). 6. If removed, install two screws (14), new lockwashers (15), washers (16), bracket (13) on bulkhead. 7. Install four screws (10), four new lockwashers (10), four washers (12), one ground lead terminal (6), one new lockwasher (11) as shown in the art, and driver’s controller (2) on bracket (13). 8. Connect two leads (3) to driver’s controller (2) and driver’s heater (4). 9. Connect lead 537B (1) to driver’s controller (2). 0794 00-4