Efco SWAPLOADER SL-412 Parts And Operation Manual page 35

INSTALLATION INSTRUCTIONS – FOLDING BUMBER ASSEMBLY
1. Review all directions and diagrams provided before starting bumper installation. Typically, a
folding bumper is needed when the rear of the container extends beyond the back of the
truck such that the distance between the truck bumper and container rear exceeds 24" (see
Fig. A). Office of Motor Carrier Safety (OMCS) Regulation 393.86 requires that no bumper
be located more than 30" off the ground when the truck is empty, and the end of the bumper
should not be
located more than
24" from the
extreme rear of the
vehicle, including
truck bodies (see
Fig. A). The folding
bumper will need to
be used in
conjunction with the
Roller Assembly
(Pt. No. 10H90)
and Roller Mount
Brackets Assembly
(Pt. No. 10H91) for
the container to
function properly.
2. Locate the best position
for the support bars
between the cross
members. Fabricate four
support bars out of 4" x
1" bar cut to the length
needed to fit between
the cross members (see
Fig. C). Fig. C shows a
width dimension of 56
1/2". This width can be
adjusted if interference
occurs with other items
on the container, but
cannot exceed the width
of the bumper tube.
Weld the four bars
between the cross
members.
3. Weld the front (Pt. No. 62H87) and rear (Pt. No. 62H88) brackets to the support bars. Be
sure to maintain the dimensions as indicated so that the bumper folds properly (see Fig. B &
C).
4. Weld the Pivot Arms (Pt. No. 62H84) to the Bumper Tube Weldment (Pt. No. 51H46). Be
sure to maintain the width dimension that was used to locate the support bars in Step 2.
2.3.INS.ACC.51H44
Section II: Installation - Accessories
Figure A
Figure B
2-21