EXPANSION VALVE DIRECT SUPPORT MAINTENANCE REPLACEMENT

TM 9-4120-425-14&P

EXPANSION VALVE DIRECT SUPPORT MAINTENANCE REPLACEMENT

THIS WORK PACKAGE COVERS:

Removal and Installation

INITIAL SETUP:

Maintenance Level

Direct Support

Tools and Special Tools

Tool Kit, General Mechanics (Item 1, Table 2, WP 0118-00)

Tool Kit, Service, Refrigeration Unit (Item 2, Table 2, WP 0118-00)

Recovery and Recycle Unit, Refrigerant, (Item 5, Table 2, WP 0118-00)

Mask, Air Filtering (Item 29, Table 1, WP 0121-00)

References

WP 0118-00 (MAC)

Equipment Condition

Mode selector switch in OFF position.

Main power source is disconnected.

Top panels removed (WP 0019-00).

System refrigerant discharged (WP 0049-00).

Test Equipment:

Electronic refrigerant gas leak detector

Materials/Parts

Nitrogen (Item 4, Table 1, WP 0121-00)

Brazing alloy (Item 5 or 6, Table 1, WP 0121-00)

Brazing flux (Item 7, Table 1, WP 0121-00)

Warm, soapy water

Cloth, lint-free (Item 9, Table 1, WP 0121-00)

Special Environmental Condition

NOTE

In accordance with Environmental Protection Agency regulations, refrigerants

cannot be discharged into the atmosphere. A refrigerant recovery and recycling unit

must be used whenever discharging the refrigerant system.

Operation of the recovery/recycling unit must be by AUTHORIZED PERSONNEL

ONLY.

0074-00-1