TM 10-4520-263-12&P                0010 00 0010 00-3 THIS SECTION COVERS: Before Operation PMCS Checks and Services INITIAL SETUP: SHS Shutdown and Cool Maintenance Level Materials Operator Wiping Rags (WP 0049 00, Item 1) Table 1. Preventive Maintenance Checks and Services for SHS ITEM NO. INTERVAL ITEM TO BE CHECKED OR SERVICED PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: 1 Before Rain cap and nested stack assemblies   Check inside of stack sections (1) and rain cap (2) for thick deposits of carbon/soot, and clean if necessary.   Check for cracked sections or bent flanges which may cause the leakage of exhaust gases into heated space during heater operation. Stack or rain cap assembly have an accumulation of carbon/soot  which would impair operation or cause a fire inside the stack and rain cap during operation. Cracks exist or flange bent. 2 Before Tent lines and wire ropes   Check for frayed or cut guy lines (3) and wire ropes (4). Tent lines or wire ropes frayed or cut. 3 Before Heater body assembly   Clean carbon/soot deposits from heater body assembly (5).  Check that latches (6) for lid assemby (7) open and shut properly, and that stack adaptor assembly (8) is not bent. Carbon/soot deposits from last operation have not been removed; latches for lid assembly do not open, or do not shut fully; stack adaptor assembly will not accommodate stack assembly. 4 Before Canister lid assembly   Check that canister lid assembly (7) is not bent, and that it does not have holes in it. Canister lid assembly bent or has holes in it which would prevent it from sealing off air leaks.