All data on pages 4-235 thru 4-241 deleted.
4-60. DIESEL HEATERS. This task covers:
Tools, see Appx B, Sec III, Ref Code (No.):
General Safety Instructions:
Tool Kit, General Mechanics Automotive (1)
Stripper, Wire (16)
Crimper, Hand Terminal (16)
Observe specific Warnings in the text.
Sealant, Silicone (Appx E, Sec II, Item 63)
Lockwashers (TM 10-4610-232-24P)
Washers (TM 10-4610-232-24P)
Electrical power to the heater must be maintained while testing heater. Do not touch
electrical wires and components while testing heater. Severe injury from electrical shock
Make sure electrical power to the unit is turned off while doing mechanical work on heater.
Failure to do so could result in serious injury from electrical shock or moving parts.
There are two identical diesel heaters in the ROWPU. One is located behind the main
control panel, the other is mounted to the right of the panel. The following procedures
apply to both.
The ignition power supply of the heater generates high voltages that could cause severe
injury or death. Use extreme caution when making adjustments to the heater. Turn heater
OFF before doing any mechanical procedures. DO NOT remove any parts other than those
listed in the procedure.
Carburetor Adjustment - POWER OFF (Refer to Figure 4-69).
Loosen four cover screws (1) and two cover latches (2).
Remove cover (3) by lifting up and out.
Carburetor Adjustment - POWER ON.
The screw on fuel needle may be covered with silicone seal.
Start and run heater, if heater does not hold in the run mode, you may have to back out the fuel needle (3A)
approximately 3/4 turn counterclockwise to achieve more fuel flow.
When the heater is running, adjust the setting of the fuel needle (3A) so the heater burns evenly and smoothly with no
smoke visible in the exhaust.
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