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 5-20 Vent Fan Assembly Procedure for Design Iteration 3 (Continued) Figure 5.6-6 Vent Fan Assembly 5. Use a 5/16" socket to remove the bolt that holds the Vent Fan to the Burner Housing. Thread lock compound is used to secure this screw, so gentle force may be needed to break the screw’s grip. Figure 5.6-7 Bolt Removal Detail, Vent Fan Assembly !CAUTION! Take care not to damage the Combustion Air Duct during Vent Fan removal. 6. Wiggle the Vent Fan Assembly while also pulling the Vent Fan Assembly away from the Burner Housing Assembly. A silicone sealant is used to seal the end of the combustion air duct to the combustion air inlet. This seal must separated in order to remove the vent fan assembly.