HEATER DISTRIBUTOR AND CORE MAINTENANCE

TM 5-4210-224-14&P

4-137. HEATER DISTRIBUTOR AND CORE MAINTENANCE

This task covers:

a. Inspection

Removal

Installation

Equipment Condition

INITIAL SETUP:

Para.

Condition Description

4-72

Engine Cooling System Drained

Tools

4-126

Instrument Bezel Removed

General Mechanics Tool Kit

4-136

Heater Hoses Removed

4-138

Heater/Defroster Assembly Removed

Materials/Parts

4-139

Heater/Defroster Cables Removed

Core (3027247)

General Safety Instructions

Engine OFF.

Transmission in (N) neutral.

Parking brake and micro-brakelock set.

Batteries disconnected.

INSPECTION

Visually inspect heater distributor and core assembly for

any sign of leakage or damage.

REMOVAL

CAUTION

The heater core can be damaged

near the tube attachment seams if

force is applied on them. If the

heater hoses do not come off, cut

the hoses forward of the core

tubes. Cut the hose on core tubes

to remove.

Remove nuts (1) from the distributor duct

studs (2) that project into the engine

compartment.

Remove screws (3).

Remove floor outlet (4).

Remove screw (5) that holds the defroster

duct (6) to the heater distributor (7).

Remove screws (8) that hold the heater

distributor (7) to the dash panel.

4-187