COMPRESS OR START RELAY-INSPECT/TES T/RE PLACE.

TM 9-4120-378-14

4.27 COMPRESS OR START RELAY-INSPECT/TES T/RE PLACE. This task covers removal, test and installation.

INITIAL SETUP

Equipment Condition:

Materials/Parts:

Rear and center top cover removed

Methyl-ethyl ketone (MEK) (Item 23, Appendix E)

Clean rags (Item 9, Appendix E)

Silicone adhesive sealant RTV (Item 1, Appendix E)

Test Equipment:

Remarks

Action

Location/ltem

Disconnect air conditioner power source

before doing maintenance work on the

electrical system.

Top Rear

Remove screw (1) and Iockwasher (2) from

Removal

mounting tab and remove compressor start relay

(K5) (3).

Methyl-Ethyl Ketone (MEK) is flammable

and its vapors are explosive. Prolonged

or repeated inhalation of fumes or con-

tact with the skin can be toxic. Use in a

well-ventilated area, wear gloves and

keep away from sparks or flame.

Using methyl-ethyl ketone (MEK) (Item 23, Ap-

pendix E) and rag (Item 9, Appendix E), remove

silicone adhesive sealant (RTV) from relay.

Tag and disconnect leads (4), (5), and (6) from

the compressor start relay (K5) (3).