Repair of Alignment Mounting Frame Assembly

TM 9-4931-583-30&P

NOTE

Remove four screws (15) and washers (17) from slider

and remove slider. Identify location of shims, if any,

The slider assemblies must be protected

that are installed between slider and bracket. Retain

from environmental elements such as

shims for reinstallation.

dust and dirt when not in use.

(e) Remove three screws (16) and washers

The lubrication task is for corrosion

(17) and remove bracket (19) from each side of frame.

prevention only. Conduct this task

monthly when BAGSE is used in areas

of high atmospheric humidity.

(f) Remove one bolt (24) and nut (20) from

bracket (25) and remove from each side of frame.

(a) Remove any protective covering that

may be over the slider.

(b) Spray between top plate (3, figure 3-2)

NOTE

and bottom plate (4) with corrosion preventive com-

pound, WD 40 MIL-C-23411. Wipe away any excess

Shims may be installed between slider

lubricant.

and frame. Carefully remove slider so as

to retain location identification of any

(c) Rotate slide adjustment knob (5) in

shims that may be installed.

each direction to check freedom of motion and

spread compound. Return slider to midposition.

(g) Loosen four bolts (29) and remove slider

(d) Wrap slider with barrier material or

assembly (21) from fixed frame (42), allowing bolts to

equivalent protective wrapping and secure with tape,

remain to hold any shims that may be installed.

unless mounting slider assembly on boresight assem-

Remove any shims from bolts, retaining location iden-

bly.

tity. Remove bolts (29) and washers (30).

(6) Assemble mounting frame assembly.

Refer to figure C-8 for breakdown and parts

(h) Loosen four bolts (29) and remove slider

identification numbers.

assembly (36) from fixed frame (42), allowing bolts to

remain to hold any shims that may be installed.

NOTE

Remove any shims from bolts, retaining location iden-

tity. Remove bolts (29) and washers (30).

If slider studs do not align with holes in

frame (39, figure C-8) slider shall be

repositioned, using shims between slider

(4) Inspect each part. Any discrepancy,

and mounting.

except cleanliness, is cause for replacement.

(a)

Warped or bent.

(a) Position slider assembly (31) to right

corner of fixed frame (42), installing any shims removed

(b)

Damage.

in same location. Fasten slider and shims with four

bolts (29) and washers (30).

(c)

Loose or missing parts.

(b) Position slider assembly (31) to left corner

(d)

Threaded items for thread damage.

of fixed frame (42), installing any shims removed in

same location. Fasten slider and shims with four bolts

(e)

Sliders for binding, corroded or worn.

(29) and washers (30).

(f) Cleanliness. Clean, if required, per

(c) Insert one clamp (14) through hole in

paragraph 2-9.a.

lower end on each side of fixed frame from rear to front.

Install washer (13) and knob (12) on each of the two

(5) Corrosion control of slider assembly.

clamps.

3-5