TOP AND BOTTOM BEAM PREPARATION

MWO 9 -2330-390-35-1

3. Place front and rear dollies into maneuvering position (Figure 3) and separate

by a distance of at least 30 ft or side by side. (Refer to Appendix B, Section a).

4. Place wooden blocks (12"x12" stock) under each end of each bottom beam

and remove dolly half from maneuvering position (Refer to Appendix B,

Section b). The condition of each dolly half should resemble Figure 4.

NOTE

Removal of the top hooks, detent lanyard pins, and toolbox -mounting

brackets (front dolly) is not necessary.

5. Remove the top and bottom beams and positioning cylinders from both the

front and rear dollies (Figure 5) (Refer to Appendix C, Section a).

NOTE

The preferred method of applying the MWO is performing the required

cutting, grinding, welding and painting WITHOUT removing bottom dolly

beams from dolly suspension (see Figure 5). The bottom beams of the

dolly may be removed from the dolly suspension if required IAW TM 9

2330-390-14&P. However extreme care must be taken during reassemble

due to close tolerances.

6. With a permanent-marking device, appropriately identify each support beam

for future reference (i.e. front bottom, front top, rear bottom, or rear top).

7. Clean and inspect all parts (Refer to Appendix C, Section b).

b. TOP AND BOTTOM BEAM PREPARATION

NOTE

Preparation procedures are NOT the same for the front and rear or the

top and bottom beams. Discrepancies will be noted when necessary.

All surfaces to be welded should be free of paint and other surface

treatments. T ree recommended methods for removal are the use of

plastic media blasting at approximately 40 PSI, the use of paint remover

such as MIL-R-81294, type I, or the use of a hand-held portable

sander/grinder equipped with a wire brush.

1. Remove the vertical tubes from the top and bottom beams obtained from both

the front and rear dolly. Cut tubes within 0.5 in. from each support beam

2. Grind off remaining tube material flush with surface of beam at all vertical

tube connections.