Actuating Cylinder - TM-5-4120-393-140267

TM 5-4120-393-14

5-26. Actuating Cylinder

This task covers:

a. Inspection

c. Installation

b. Removal

Initial setup.

Tools:

Tool kit, service, refrigeration unit NSN 5180-00-596-1474

Personnel: 1

Materials:

Equipment condition:

1. Turn unit power off at power source. If there is a chance that it will be turned on, also disconnect power cable

to air conditioner.

2. Remove lower front panel. See para 4-24.

3. Remove condenser fans and motor. See para 4-60.

General Safety Instructions:

WARNING

Disconnect input power to the air conditioner before performing any internal

maintenance. Voltages used can KILL. Shutting the unit off at the control panel

does not disconnect unit power.

INSPECTION

Check actuating cylinder for signs of leakage. If leakage is suspected, leak test per paragraph 5-12.

Check that attaching nuts, linkage connection, and flare nut are in place and secure. Tighten loose parts and replace

if missing.

Check that capillary tubing is not kinked or mashed closed. Replace if damaged.

REMOVAL

Discharge the refrigerant system. See para 5-9.

Using wrench, loosen flare nut (1) and slip away from cylinder (2) flare connection.

Using screwdriver and wrench, remove three screws (3), eight washers (5), and three nuts (4) from linkage arms (6)

and (7).

Using screwdriver remove four screws (8) and remove cylinder (2) and mounting bracket (11) from unit.

Using wrench, remove two nuts (9) and washers (10) from actuator (2) mounting studs.

5-61