REFRIGERATION SYSTEM SERVICING (EVACUATION)

TM 9-4120-425-14&P

REFRIGERATION SYSTEM SERVICING (EVACUATION)

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THIS WORK PACKAGE COVERS:

Service (Evacuation)

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)

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

Test Equipment

Vacuum pump (Item 3, Table 2, WP 0118-00)

Materials/Parts

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

References

WP 0118-00 (MAC)

Equipment Condition

Refrigerant system leak tested (WP 0052-00).

Refrigerant system discharged (WP 0049-00).

Main power source disconnected.

WARNING

Disconnect air conditioner power supply.

WARNING

Be sure that the manifold hoses are correctly connected. BLUE Hose = Low

Pressure, RED Hose = High Pressure.

CAUTION

Do not evacuate a leaking system. The vacuum created can cause air, moisture, and

dirt to enter system.

NOTE

Replace filter-dryer whenever refrigerant system is opened.

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