TM-9-2540-207-14&P Sustainment Manual for A20 Heater for M113 2540-01-396-2826 Download
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TM 9-2540-207-14&P 5-10 5.4.2 Top Shell Figure 5.4-3 Top Shell 5.4.2.1 Removal 1. Remove Top Cover (ref 5.4.1). 2. Unscrew counter-clockwise and remove the Ignitor Hatch. 3. Use a 1/4" nut driver, or 1/4" socket to remove nine (9) self tapping screws and two (2) machine screws and detach Top Shell. Lift off Top Shell. Note: The Top Shell has gaskets on its underside which may have become compressed during use. Some careful prying of the Top Shell may be required to release the gaskets.