REMOVAL AND REPLACEMENTS

TM 11-5805-387-20-2

2-11. REMOVAL AND REPLACEMENTS

a. Front Panel Gasket

Replace front panel gasket on modem if it is cracked, broken, frayed, worn, or out of its groove

and flattened. Follow this procedure:

Follow instructions given in paragraph 2-9 for removing modem from case. Pull chassis out

only far enough to loosen front panel gasket.

WARNING

See trichlorotrifluoroethane warning on page a.

WARNING

See compressed air warning on page a.

Remove all cement and dirt from groove in which gasket is seated. Use a cloth dampened

(not wet) with cleaning compound (item 2, app. C).

Spread thin film of EC-847 cement (item 1, app. C) in groove.

Place new gasket in groove. Gently press to insure complete bonding.

NOTE

Let cement dry for at least 1 hour before placing chassis back into case, so

the gasket won't stick to the chassis.

Follow instructions in paragraph below to replace chassis into case after replacing front panel

gasket.

b. Module Dust Covers

Place dust cover over module. Turn bail handles to the right until they are tight.

For scope module A2, place cover over module and tighten four screws to hold cover in place.

c. Modules

Plug module into appropriate chassis connector.

Secure modules to chassis by tightening screws with springs, lock washers and washers in

each corner of module.