TM 9--2350--292--20--20708 00--1M3 AIR HEATER REPAIR0708 00THIS WORK PACKAGE COVERS:Removal, Disassembly, Assembly, InstallationINITIAL SETUP:Tools and Special ToolsGeneral mechanic’s tool kit (item 1, WP 0717 00)Materials/PartsLockwashers (4) (item 58, WP 0718 00))Hose clamp (item 357, WP 0718 00)Hose clamp (item 430, WP 0718 00))Antiseize compound (item 90, WP 0716 00)Equipment ConditionsVehicle MASTER switch OFF (TM 9--2350--292--10)Battery power disconnected (WP 0256 00)ReferencesTM 9--2350--292--10NOTEThere are three M3 air heaters located in the crewcompartment. All M3 air heaters are repaired in the samemanner. This task repairs driver’s side M3 air heater.Removal1. Disconnect wiring harness 4W306 connector P3 (1) from wire 419 at M3 air heater (2).2. Remove two hose clamps (3) and disconnect two hoses (4) from two adapters (5) on M3 air heater (2). Discardhose clamps.3. Remove four screws (6), four lockwashers (7) and M3 air heater (2) from vehicle. Discard lockwashers.Figure 378FORWARD4352534176
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