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Body and Implement Mounting Guidelines U500 North America
4.14.4 Dimensioning of implement mounting frames
The implement / body manufacturer is responsible for the dimen-
sions of the mounting frame. The longitudinal members of the
mounting frame are to fit flush on the upper frame flange of the
chassis frame. Wood sills between the implement mounting frame
and the upper frame flange are not permitted. The use of U-bolts
and other clamping devices is not permitted.
The dimensions of the longitudinal members can be determined us-
ing the section modulus of the mounting and chassis frame charts
(see Figure 4.87, page 129 to Figure 4.90, page 132). The displayed
information applies only for evenly loaded longitudinal members.
A smooth transition at the front end of the longitudinal members
should be designed. Two different solutions are possible:
•
Mounting frames with a maximum height of 6.3 in / 160 mm:
Figure 4.77: Front end of a mounting frame with a max. height of
6.3 in
August 2005
•
Mounting frames higher than 6.3 in / 160 mm:
Figure 4.78: Front end of a mounting frame higher than 6.3 in
Drawings of mounting frames with detailed measurements are
shown in Figure 4.84, page 126 and Figure 4.85, page 127.
Heavy bodies / implements need mounting frames with a high sec-
tion modulus. Such a high section modulus can be reached by use
of high or closed longitudinal members. Closed C - profiles should
be preferred to reduce the height of the center of gravity. The follow-
ing Figure 4.79 shows some possible profiles for mounting frames:
A
=
Open C – profile
Closed C – profile (Section modulus x 1.25 higher than at an
B
=
open C-profile)
Nested C – profile (Section modulus x 1.75 higher than at an
C
=
open C-profile)
Nested C – profile (Section modulus x 1.9 higher than at an open
D
=
C-profile)
Implement / Body Installation
Implement
sub frame
Unimog frame
Code D70
Page 123 of
294
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