TM-9-2540-207-14-P
HEATER, VEHICULAR COMPARTMENT, MODEL: A20
TECHNICAL MANUAL; OPERATOR, FIELD, AND SUSTAINMENT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JULY 2007
TM-9-2540-207-14-P - Page 41 of 288
TM 9-2540-207-14&P
4-3
4.1
Periodic Service and Inspection
The A20 heater is designed to operate with unscheduled maintenance.
However, conducting
regular inspections will help improve the life and performance of the heater.
At the beginning of
every
winter season:
1.
Clear of lines of fuel and inspect the lines for the presence of cuts, leaks, or other damage
that may lead to fire or other damage. Failure to do so may result in injury or death to
personnel.
2.
Operate the heater and allow it to run in high for approximately one hour.
If the heater
functions correctly, no further inspection is required.
4.2
Mandatory Fuel Line Inspection
All A20 heaters must be inspected at the first opportunity upon receipt in accordance with the
procedures outlined below.
The initial setup for this task is engine stopped and heater off. The inspection is to be performed
by a unit maintenance representative using a general mechanics tool kit, automotive. There are
no materials or parts needed for this inspection.
1.
Inspect heater area for fuel leaks:
a. Check Vehicle fuel filter, fuel pump, fuel inlet hose and all fittings for leaks.
b. Check heater mounting area for signs of fuel pooled in the area (leaks are found refer
to step eight (8)).
2.
Check personnel heater for signs of fuel leaks:
a. Check body of heater for signs of leaks or stains from prior leaking (leaks are found
refer to step eight (8)):
3.
Remove heater top housing cover (TM 9-2540-207-14&P). Remove four (4) screws and
washers from top cover. Gently remove heater cover from heater body.
4.
Inspect heater components for leaks (leaks are found refer to step eight (8)):
a. Check fuel injector, fuel pressure sensor, and fuel pump connections for leaking fuel.
b. Check all flexible hoses, fittings and connections for leaking fuel.
5.
Start personnel heater (TM 9-2350-284-10-1, WP 0026-00, TM 9- 2350-284-10-1-1, WP
0028-00, TM 9-2350-294-10-1, WP 0025-00).
6.
Re-inspect heater components for fuel leaks:
a. If fuel leaks are found in step one (1), repair at unit level.
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