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TM 9-4120-425-14&P
PRESSURE SWITCHES DIRECT SUPPORT MAINTENANCE REPLACEMENT
THIS WORK PACKAGE COVERS:
Inspect, Removal, Test, 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
Equipment Condition
Mode selector switch in OFF position.
Main power source is disconnected.
System refrigerant discharged (WP 0049-00).
Top panels removed (WP 0019-00).
Remote control module removed and circuit breaker panel removed (WP 0033-00 and WP 0034-00).
Test Equipment
Electronic refrigerant gas leak detector
Materials/Parts
Nitrogen (Item 4, 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.
WARNING
Check that power source is disconnected. Check that refrigerant system is discharged
of refrigerant.
0072-00-1

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