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

  TM-9-2540-207-14-P - Page 89 of 288

TM 9-2540-207-14&P
5-45
Burner Assembly (Continued)
9.
Pull Combustor Assembly away from Heat Exchanger.
Note:
The Burner Housing is sealed to the Heat Exchanger with an O-Ring.
Removal of the Combustor Assembly
may require some twisting
movement to release the seal.
Remove Burner O-Ring from the Burner Housing and discard.
5.7.1.2 Installation
1.
Coat a new Burner O-Ring with GAA grease and install the O-Ring onto the Burner
Housing.
2.
Clean the mating surfaces of the Heat Exchanger to the Burner Housing using a cloth.
3.
Check that the Primary Air Duct is not damaged, torn, or nicked.
Replace if necessary.
Note: If the primary air duct is silicone rubber, it may be replaced with the
new metal duct.
Apply O-ring lubricant to the contact surfaces.
4.
Line up the Burner Housing with the Heat Exchanger and push into place.
Tip:
To line up the Burner Housing use the Primary Air Duct as a guide to
determine the screw hole locations.
5.
Using a 5/16" socket or nut driver, secure the Burner Housing to the Heat Exchanger by
installing three (3) hex-head bolts with flat washers and lock washers. Ensure that the
two ground wires and Vent Sensor connector clip are included. Tighten until the Burner
mounting lugs are resting on the flanges of the Heat Exchanger.
Note:
The three (3) bolts should be tightened so that the Burner Housing is
pulled into the Heat Exchanger in an even manner.
6.
Ensure that the braided sleeving is in place on a new fuel line. Place the hose clamp
over the Fuel Line and secure the Fuel Line onto the Burner Housing.
Note: Fuel Line removal may loosen the brass fuel line fittings.
Check that
all fittings are secured into their housings, and Loctite (PSP 620) if
necessary.
7.
Check that the Burner Sensor fitting is clean. Insert the Burner Sensor and secure using
a 7/16" open ended wrench. DO NOT force the Burner Sensor through the hole.
8.
Ensure that the Primary Air Duct is not kinked. Align as necessary.


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