7
Chapter 3 SUB-DECK
The sub-deck is the structure directly above the cross-members and underneath the floor
slats. The sub-deck consists of square steel tubing or U-shaped aluminum profiles.
The square tubing mounts on top of the cross-members. Plastic floor bearings connect to
the tubing.
3.1 Square Tubing
The proper installation of the square tubing is critical for maintaining drive alignment,
floor straightness and for optimal performance of the seal located between the floor slats.
Raise the drive unit into position. Do not weld at this time. The drive unit is in place for
locating the end of 25mm x 25mm tubing.
1. Cut 25mm x 25mm [1” x 1”] tubes to proper length according to your container
measurements. The number of tubes installed equals the number of floor slats.
All sub-deck tubes must extend beyond cross-members by 50mm [2”], because
bearings require at least 50mm [2”] of tubing on both sides of a cross-member for proper
attachment. See details Page 8, F, G & H.
2. Position and mount the tubes.
Tubing for SAE flooring is on 3.65” [92.7mm] centers (Figure 7).
Start at the rear of the container. Lay the two outside tubes in the container and separate
them with spacing jigs. Center the jigs so the tubes are the same distance from the side
walls and then weld in place. (See Figure 8)
Figure 7
DETAIL F
SCALE 1 / 3
F
75364-2
92.7
[3.65"]
92.7
[3.65"]
