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 152 of 288
TM 9-2540-207-14&P
5-108
Wiring Harness (continued)
5.9.8.2.2 Installation
1.
Install Wiring Harness by sliding it through the Top Housing.
2.
Install Wiring Harness to Wiring Harness Plate by installing grommets in keyed slot of
Wiring Harness Plate.
3.
Using a #2 cross-tip screwdriver, install the four (4) self tapping screws in the Wiring
Harness feed-thru plate by which it is fastened to the Top Housing. Install the Plate.
4.
Install the Fuel Pump (ref. TM 5.9.3) to Wiring Harness Plate.
5.
With the Top Housing on its side, use a #2 cross-tip screwdriver to install the screw
holding the Wiring Harness P-clip (
10
) attached to the underside of the Top Housing.
6.
Install the Wiring Harness connectors to the Fuel Injector (5), (rotate the Injector
upwards to engage the connector), the Fuel Pump (6), EMI board (7), Diagnostic Display
(8) and the Power Board (9).
7.
Place the Top Housing onto the Heat Exchanger taking care not to trap or damage the
Wiring Harness. Line up Secondary Air Duct over the air pipe of the Heat Exchanger.
8.
Using pliers, move one of the 1" metal spring clamps from the Top Housing end of the
Secondary Air Duct along the Secondary Air Duct Hose and secure to the Heat
Exchanger end of the Secondary Air Duct.
!CAUTION!
Do NOT trap wires of the Wiring Harness when mounting Top Housing onto
Heat Exchanger.
9.
Using a #2 cross-tip screwdriver, secure the Top Housing to the Heat Exchanger using
four (4) screws.
10.
Using pliers, re-set the Secondary Air Duct with the spring clamp to ensure that hose is
NOT kinked or bent.
11.
Use a 7/16" open ended wrench to attach the Exhaust Sensor.
12.
Install Combustor Assembly (ref. 5.7.1).
13.
Using a 7/16" open ended wrench, install Burner Sensor.
Ensure that the wire is
properly routed to prevent any damage.
14.
Connect the Vent Sensor Connector (J5) of the Wiring Harness to the Vent Sensor
connector.
Ensure that the locking tab is engaged.
15.
Install Vent Fan Assembly (ref. 5.6.1).
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