TM 10-4520-261-12&P
SPACE HEATER ARCTIC (SHA)
PREVENTIVE MAINTENANCE CHECK AND SERVICES (PMCS)
0010 00
0010 00-5
THIS SECTION COVERS:
Before 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 OPERATING WITH LIQUID FUEL...
5
Before
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.
6
Before
Fuel flow
control valve
Check for bent/damaged bracket (3),
fuel flow control valve (4), cup/cable
assembly (5). Be sure bracket (3) is
not bent out of the required 90 degree
position from the heater body assembly
(6).
Valve is damaged or valve bracket
bent out of 90 degree position with
heater body.
7
Before
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.
8
Before
Fuel can
stand, fuel
can
Check fuel can stand (9) and fuel can
(10) for damage.
Fuel can stand is unstable; fuel can
leaks.
9
Before
Gravity feed
adaptor
Check gravity feed adaptor (11) for
damage. Ensure that the gasket (12)
inside 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 OPERATING WITH SOLID FUEL...
10
Before
Solid fuel
grate
Check that solid fuel grate (15) is not
bent or otherwise damaged.
Solid fuel grate is bent such that it
allows fuel to touch bottom.
11
Before
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.
