Top Deck Grille Door Rework.

TB 9-2300-378-14

4-11. Top Deck Grille Door Rework.

General

F i e l d reports indicate that air cleaner boxes are being damaged by top deck grille

doors. This condition usually occurs following air cleaner replacement or after vehicle

overhaul. These procedures provide inspection and rework instructions for the grille

door hinges to prevent this damage to the air cleaner assembly. Corrective action to

e l i m i n a t e this interference condition is to be performed by DS level maintenance

personnel.

Procedures (Fig. 4-25).

WARNING

Ensure all ammunition is removed from tank prior to

p e r f o r m i n g modication. Failure to do so can cause death,

injury or damage to equipment.

CAUTION

Ensure that prior to traversing turret, the top loading air

cleaner doors and ammo rack handles are properly secured.

Failure to do so can cause damage to doors or handles.

(1) Disconnect three ground straps (TM-20).

(2) Manually traverse turret, so main gun is positioned over right or left stowage box, to

gain access to top deck grille doors.

WARNING

Welding in the vicinity of fuel oil and hydraulic fluid is

dangerous. Place flameproof material between welding area

and fluid carrying components. Cover adjacent components

w i t h wet rags or canvas to protect against weld spatter.

Station a helper in the immediate area with an approved fire

extinguisher before beginning welding operations. Failure to

a d e q u a t e l y protect against fire can cause injury, death, or

damage to equipment. Extreme caution should be exercised

to avoid burning air cleaner gasket.

CAUTION

During rework of grille doors, care must be taken to assure

the grille door hinges do not strike the air cleaner as the

doors are opened.

NOTE

Perform steps 3 through 7 to left and right side of vehicle.

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