TM 10-4520-261-12&P
SPACE HEATER ARCTIC (SHA)
PREVENTIVE MAINTENANCE CHECK AND SERVICES (PMCS)
0010 00
0010 00-11
THIS SECTION COVERS:
After Operation PMCS Checks and Services
INITIAL SETUP:
SHA Shutdown and Cool
Maintenance Level
Materials
Operator
Wiping Rags (WP0046, Table 1, Item 1)
Table 1. Preventive Maintenance Checks and Services for SHA - continued
ITEM
NO.
INTERVAL
ITEM TO
BE
CHECKED
OR
SERVICED
PROCEDURE
EQUIPMENT
NOT READY/
AVAILABLE IF:
WHEN USING LIQUID FUEL. . .
21
After
Burner shell
assembly
Check down tube assembly (1) and inside
of burner shell assembly (2) for thick
carbon/soot deposits. Clean if necessary.
Check both assemblies, (1) and (2), for
cracked metal.
Down tube assembly is cracked
or plugged and/or burner
assembly holes are blocked.
22
After
Fuel flow
control valve
Check for bent/damaged bracket (3), fuel
flow control valve (4), cup/cable assembly
(5). Be sure bracket (3) not bent out of the
required 90 degree position from the heater
body assembly (6). Drain fuel and clean
filter.
Valve is damaged or valve
bracket bent out of 90 degree
position with heater body.
23
After
Fuel hoses
Check for cuts or swollen areas in hose (7)
walls or damaged fittings (8).
Hoses are cut or have swollen
areas, or fittings are damaged.
24
After
Fuel can
stand, fuel
can
Check fuel can stand (9) and fuel can (10)
for damage.
Fuel can stand is unstable; fuel
can leaks.
25
After
Gravity feed
adaptor
Check gravity feed adaptor (11) for
damage. Ensure that the gasket (12) on the
underside of the cap has been installed.
Check the QD fitting (13) for dirt, ice, or
other foreign objects; clean if necessary.
Check hose (14) for cracks or damaged
areas.
Gravity feed adaptor leaks.
WHEN USING SOLID FUEL. . .
26
After
Heater body
assembly
Clean ash deposits from heater body
assembly (6).
Ash deposits from last
operation in solid fuel mode
have not been removed.
27
After
Solid fuel
grate
Check that solid fuel (15) grate is not bent or
otherwise damaged.
Solid fuel grate is bent such
that it allows fuel to touch
bottom.
28
After
Sliding draft
gate
Check that sliding draft gate (16) opens and
shuts completely, and that when shut, it forms
a tight seal.
Sliding draft gate will not fully
shut, or does not open.
