JUNCTION BOX ASSEMBLY UNIT MAINTENANCE

TM 9-4120-425-14&P

JUNCTION BOX ASSEMBLY UNIT MAINTENANCE

0035-00

THIS WORK PACKAGE COVERS:

Removal, Inspection, Test, Repair, and Replacement

INITIAL SETUP:

Maintenance Level

Unit

Tools and Special Tools

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

Materials/Parts

Solder (Item 2, WP 0121-00)

Flux (Item 15, WP 0121-00)

References

Schematic Diagram (WP 0122-00)

Test Equipment

Multimeter

Variable voltage power source (AC/DC)

Equipment Condition

Air conditioner shut down and cool.

Power disconnected from unit.

Evaporator air intake louver removed (WP 0020-00).

Top covers removed (WP 0019-00).

WARNING

HIGH VOLTAGE

is used in operation of this equipment.

DEATH ON CONTACT

may result if personnel fail to observe safety precautions.

Never work on electrical equipment unless there is another person nearby who is

familiar with operation and hazards of equipment and who is competent in

administering first aid. When technician is aided by operators, he must warn them

about dangerous areas.

Whenever possible, input power supply to equipment must be shut off before

beginning work. When working inside, after power has been turned off, always

ground every part before touching it. Be careful not to contact high voltage

connections when installing or operating this equipment.

Whenever nature of operation permits, keep one hand away from equipment to

reduce hazard of current flowing through vital organs of body. Do not operate

equipment without all guards, louvers, and covers in place and tightly secured.

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