Figure 3-13. High pressure switch, low pressure switch, sight glass outside air. thermostat, removal and installation.

TM 5-4120-274-15

Figure 3-13. High pressure switch, low pressure switch, sight glass outside air.

thermostat, removal and installation.

b. lnspection and Testing.

3-42. Fan Speed Pressure Switch (fig. 3-14).

(1) Inspect for broken or damaged leads and

a. Inspect for broken or damaged contacts.

kinked or broken capillary tubing.

(2) Test for continuity across switch with

b. Test for continuity with multimeter set on

multimeter set on OHMS. Refer to wiring dia-

OHMS. Refer to wiring diagram figure 1-5 to

gram figure 15 to establish points of continuity.

establish points of continuity.