CHASSIS AND SNAP FASTENER (continued)

TM 5-4120-359-14

Soften and remove old adhesive and gasket residue, using acetone or methyl-ethyl ketone (MEK) and a

stiff brush.

Use only approved replacement materials as specified in TM 5-4120-359-24P.

EMI gasket material specified for this unit is supplied with adhesive backing.

Cut gasket to size. Be sure that EMI gasket corners are installed so that good continuous edge contact is

made.

Be sure that surface to which gasket is to be applied is clean and free of paint and old adhesive material.

Remove backing material from adhesive side and immediately press gasket in place. Be sure that good

edge to edge contact is made on the EMI gaskets.

(3) If blind nut(s) is damaged.

Use a drill bit slightly smaller than blind nut body diameter.

Drill out old blind nut(s).

Install new blind nut(s).

(4) If snap fastener is damaged.

Using a screwdriver and wrench, remove old snap fastener and lock nut.

Install new snap fastener and secure with lock nut.

Removal

(1) Remove the following components:

Time totalizing meter, per paragraph 4-93.

Relay (K1), per paragraph 4-94.

Relay (K2), per paragraph 4-95.

Time delay relay (MK), per paragraph 4-96.

Terminal board (TB3), per paragraph 4-97.

(2) Using a screwdriver and wrench, remove lock nut and snap fastener.

d. Installation

(1) Using a screwdriver and wrench, secure snap fastener to chassis with lock nut.

(2) Install the following components.

Time totalizing meter, per paragraph 4-93.

Relay (K1), per paragraph 4-94.

Relay (K2), per paragraph 4-95.

Time delay relay (K6), per paragraph 4-96.

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