THIS SECTION COVERS:
Before Operation PMCS Checks and Services
SHS Shutdown and Cool
Wiping Rags (WP 0049 00, Item 1)
Table 1. Preventive Maintenance Checks and Services for SHS
Rain cap and
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
Cracks exist or flange bent.
Check for frayed or cut guy lines (3)
and wire ropes (4).
Tent lines or wire ropes frayed or
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
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.