CONTACTOR REMOVE/INSTALL

TM 10-4110-262-13&P

0035 00

DIRECT SUPPORT MAINTENANCE

ADVANCED DESIGN REFRIGERATOR, 300 CUBIC FOOT (ADR-300)

4110-01-465-4158 / 4110-01-465-4564

CONTACTOR

REMOVE/INSTALL

INITIAL SETUP

References

Tools and special tools

PMCS Instruction (WP 0010 00)

Tool Kit, Organizational Maintenance

(WP 0051 00, Table 2, Item 4)

Equipment Conditions

ADR-300 disconnected from all sources of

Materials and Parts

power.

Contactors (WP 0062 00, Item 18)

Personnel Required

HVAC Technician (MOS 52C, AFSC 3E1x1) (1)

REMOVE

Contractor/ Relay

1. Remove the electrical enclosure cover by removing the four retaining screws.

2. Using a flathead screwdriver, retract the spring-activated locking tab on the contactor lower edge.

With the tab retracted, pull the bottom of the contactor away from the mounting rail.

3. Lift the contactor off the top rail and remove it from the electrical box.

4. Move wires one at a time from the old contactor to the new contactor (or label wires) to ensure that

they are moved to the correct terminals.

INSTALL

Contactor / Relay

1. Ensure that wires are connected to the correct terminals (see Step 4 above).

2. Place contactor-mounting bracket on the bottom rail of the mounting rail. Make sure wires are clear

from behind the contactor.

3. Lock the contactor in place by pushing the top of the contactor toward the rail until the locking tab

clicks.

4. Check the security of the contactor mount.

5. Close the electrical enclosure and install the four retaining screws.

6. Connect the RU to an appropriate power supply and perform the refrigerator operation check outlined

in WP 0010 00 (PMCS No. 7).

0035 00-1