AIR DRYER -706880878

TM 5-4210-233-14&P-1

5-38. AIR DRYER

This task covers:

a. Removal

d. Assembly

g. Follow-on

b. Disassembly

e. Installation

Maintenance

c. Cleaning and Inspection f. Testing

TOOLS REQUIRED:

EQUIPMENT CONDITION

Tool Kit, General Mechanics, Automotive

Engine Shutdown (see para 2-12.)

(Appendix B, Section III, Item 1)

APU Shutdown (see para 2-16.)

Batteries Disconnected (see para 4-114.)

MATERIALS/PARTS REQUIRED:

Grease, Barium Based (Item 51, Appendix E)

Dry Cleaning Solvent (Item 3, Appendix E)

Tags, Identification (Item 32, Appendix E)

Pipe Sealant (Item 2, Appendix E)

O-rings (Fig. 153, Appendix E)

a. Removal.

NOTE

The air dryer is located near the front axle on the passenger

side.

(1) Park the vehicle on a level surface and prevent movement by means other than the brakes.

WARNING

Compressed air directed against the skin can cause death or

serious injury. Always drain the air tanks via the drain cocks

prior to removal.

(2) Drain ALL reservoirs to 0 psi (0 kPa).

CAUTION

Compressor discharge line may still contain residual pressure.

(3) Tag and disconnect the three air lines from the end cover and note the position of end cover ports

relative to the vehicle.

(4) Unplug the vehicle wiring harness (1) from the heater and thermostat assembly connector on the

purge valve housing assembly (31).

(5) Loosen the hex bolt (2) securing the upper mounting strap (30).

(6) Remove, retain and MARK the two end cover cap screws (3), lock n ts (4) and four special

washers (5) that retain the lower mounting bracket (6) to the end cover. Also mark the two holes of

the end cover. (These bolts are longer that the other six bolts.)

(7) Remove the air dryer from its mounting brackets (6 and 35) on the vehicle.

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