Installation. -724650168

TM 9-3990-206-14&P

9-15. FLOOR BOARD REPLACEMENT (CONT).

Installation.

Floor boards must be replaced with same laminated wood as specified. Using a

substitution of alternative wood will result in lower deck strength and capability, which

could lead to deck failure. Injury to personnel and/or damage to equipment may result.

Adhesives, solvents and sealing compounds can burn easily, can give off harmful vapors

and are harmful to skin and clothing. To avoid injury or death, keep away from open fire

and use in well-ventilated area. If adhesive, solvent or sealing compound gets on skin or

clothing, wash immediately with soap and water.

Wood waterproofing is hazardous and flammable. Do not breath vapors and only apply

waterproofing in a well-ventilated area. Keep away from open flames. Wear protective

gloves and eye protection when applying waterproofing. Failure to comply may result in

injury or death to personnel.

Ensure all personnel wear protective gloves when handling rear wall floor board to protect

hands from wood splinters. Failure to comply may result in injury to personnel.

Lap joint on ends of floor board being patched and repair piece must have lap joint same

width as crossmember. Floor boards and patches must be fastened to a minimum of four

crossmembers. Do not fasten floor boards or patches to removable crossmember. Failure

to comply may result in damage to equipment.

NOTE

If required floor board is unavailable, a combination of two narrower floor boards may be

combined or a wider floor board may be cut narrower to achieve required width.

Floor boards must be overlapped.

Floor boards must be installed with a gap of no more than 1/16 in. (1.6 mm) between

upper edges.

Floor boards may be patched instead of replacing entire length. Ends of patched floor

boards must overlap and be fastened to crossmember.

(1)

Apply waterproofing to all wood surfaces that have been cut and all exposed surfaces that do not have

waterproofing applied.

(2)

With the aid of an assistant, position floor board (2) on flatrack (4).

(3)

Scribe a line on floor board (2) to

correspond with center of each

crossmember (3).

NOTE

Screws must be installed 1/4 in. (6.35

mm) to either side of original hole in

crossmember depending on amount of

wood at location of hole.

(4)

Drill 7/32 in. (5.56 mm) pilot holes in floor

board (2) and crossmember (3).

(5)

Install screws (1) in floor board (2). Tighten

screws until head of screw is below surface

of the floor board.

SCRIBED LINE

9-28