Section XVIII. MAINTENANCE OF COMPRESSOR

TM 5-4120-352-14

tion box.

4-46. Rectifier.

a. Removal. Remove rectifier as follows:

(1) Refer to paragraph 4-43 and remove junc-

4-47. High and Low Pressure Cutout

tion box.

Switches.

(2) Refer to figure 4-20 and remove filter ca-

a. General. The high and low pressure cutout

pacitors. Disconnect leads.

switches cannot be removed without opening the re-

(3) Remove two cap screws and remove recti-

frigeration syste,. Electrical tests should be made

fier.

with the switches installed.

b. Testing. Apply a 30 volt ac source of power

b. Testing. Test switches as follows:

across the no. 1 and 3 terminals. Check for 24 to 28

(1) Refer to paragraph 4-43 and remove junc-

volt dc output across terminals 2 and 4. Replace rec-

tion box.

tifier if defective.

(2) Disconnect leads and test for continuity

c. Installation. Refer to figure 4-20 and install

across terminals of switch. If no continuity is indi-

rectifier as follows:

cated, press reset button and recheck.

(1) Install rectifer and two cap screws.

(3) If switch is defective, report condition to

(2) Connect leads and install capacitors: the

direct support maintenance.

.056 mfd capacitor between rectifier terminals 1

(4) If switch is not defective, connect leads

and 3; the 10,000 pfd between terminals 2 and 4.

and install junction box.

(3) Refer to paragraph 4-43 and install junc-

Section XVIII. MAINTENANCE OF COMPRESSOR

4-48. General.

4 - 4 9 . Inspection, Testing and Repair.

a. Refer to figure 4-5 and remove housing rear

Organizational maintenance of the compressor is

top cover.

limited to the inspection, testing and repair of the

b. Refer to figure 4-21 and disconnect electrical

electrical equipment.

connector.

4-42