TM 9-4120-404-14
GENERAL MAINTENANCE METHOD. Although your local standard operating and maintenance procedure may vary, a
simple method of using this technical manual to operate and maintain the air conditioner is shown in the following steps.
WARNINGS And CAUTIONS
Always Read, Understand, and Perform ALL WARNINGS and CAUTIONS
Found In This Technical Manual BEFORE Performing
The Step Immediately Following The
WARNING or CAUTION.
Throughout this technical manual there are certain procedures and operations that are
hazardous to you or to the air conditioner. If you see a WARNING, pay special attention
to the information stated in it because all WARNINGS provide you with data that will
prevent serious injury to you or others around You. When you see a CAUTION read
it carefully because the information given in it will keep you from damaging the air
conditioner and making the air conditioner unable to fulfill its mission.
Equipment Set Up And Operation. Unpack and set up the air conditioner in accordance with the procedures shown
in Chapter 2.
Perform the operator PMCS procedures shown in
Preventive Maintenance Checks And Services (PMCS).
Troubleshooting Procedures. If the air conditioner should not operate properly, refer to either the unit
troubleshooting procedures in Chapter 3 or the direct support troubleshooting procedures in Chapter 4. The most likely
air conditioner malfunctions have been placed within these troubleshooting procedures and a test and/or repair procedure
paragraph has been indicated to correct the malfunction found. If a repair is required, refer to the maintenance paragraph
shown in the troubleshooting procedure.
Maintenance Procedures. The complete repair procedures needed to correct a problem with the air conditioner
have been included in Chapters 3, 4, and 5.
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