4-22. AIR SYSTEM - Continued
4-22 12 Air Drier.
This task covers
Shop Equipment, Automotive
22, Appendix E Pipe Sealant
Maintenance and Repair,
Main Engine Shutdown (see para. 2-10)
APU Shutdown (see para. 2-12)
Batteries Disconnected (see para. 4-24)
Truck Wheels Blocked
All Air Tanks Drained
Death or serious injury could occur if compressed air is directed against the skin. Always drain all air
tanks via the draincocks prior to maintaining the air drier.
The air drier is mounted on left hand side of the frame beneath the pump body step.
Tag and disconnect the air lines (A, B, C,
and D) to the drier.
Tag and disconnect wire (1) from drier
While supporting the drier, remove the four
bolts (2) and nuts (3).
Lower drier to floor and remove from truck.
Remove all pipe fittings from inlet, outlet,
and compressor control ports and making a
sketch of the location of the fittings.
Coat all threads with pipe sealant (item 22,
Appendix E) and install pipe fittings in air
drier using your sketch as a guide.