Section III. REFRIGERANT LINE DAMAGE

TM 5-4120-394-BD

NOTE

Loose bends will result in clearance problems upon reinstallation.

(5) Prebend each end of replacement loop to fit from the outside line of each removed loop.

(6) Check that replacement line is clean before installing into system.

NOTE

Any debris which can contaminate the system may prevent proper operation.

(7) Braze replacement copper tubing from each loop's outside line so that there is an even number of open lines

between replacement tubing.

(8) Recharge refrigeration system using standard maintenance procedure.

(9) Test refrigeration system for leaks. (See TM9-4840-435-14.)

(10) Record BDAR action taken.

NOTE

When the mission has been completed, repairs are to be made using standard maintenance procedures.

Section III. REFRIGERANT LINE DAMAGE

3-6. General. Two options of splicing into a damaged refrigeration line are covered in this section. The preferred method

is by brazing the connections. The alternate method of repair is with a section of hydraulic brake hose, hose clamps, and

epoxy.

3-7. Splicing. If damaged line is within the condensor or evaporator, and damage is limited to four holes or less within

one circuit, a circuit consisting of a loop from one end of the condensor/evaporator to the other and back again, follow the

procedures in this Section. If more than four holes exist in the circuit, by-pass the damage using procedures given in

a. General Information:

(1) Limitations-Degraded cooling capacity.

(2) Personnel/Time required.

1 Soldier/1.0 to 8.0 hours.

(3) Materials/Tools.

Copper Tubing (Appendix C)

Hydraulic Brake Hose (Appendix C)

Tool Kit, Service Refrigeration Unit (Appendix B, Item 12)

3-4