Body and Implement Mounting Guidelines U500 North America
Implement / Body Installation
August 2005
Page 71 of
294
4.8 Center of gravity
Note: Calculation programs are available as Microsoft
®
Ex-
cel
®
files on the Unimog Resource CD and also from
the Unimog Implement Manager listed at the begin-
ning of this guideline.
4.8.1 General information
The overall height of the center of gravity (vehicle with implement
or body without load) must be kept as low as possible.
Only the position of the center of gravity of the vehicle / imple-
ment combination (with the implement in statically and locked
transport position) is important for the vehicle handling.
The implement / body manufacturer is responsible for the stability
of the vehicle and compliance with the maximum permissible axle
loads and gross vehicle weight in a (quasi) statically operation.
For example: Working with hydraulically operated knuckle boom
cranes, slow driving with a laterally working boom mower, loading
/ unloading of a container with a container lift etc.
Whether there is a single implement or implement combinations
(e.g. snow plow at the front mounting plate and a spreader on the
platform) the permissible loads must be observed. Use a coun-
terweight where necessary. For information on permissible axle
loads, gross vehicle weights and axle load distribution please
look up the following sections: 4.4, page 66 and 4.5, page 67.
The position of the center of gravity in the vehicle longitudinal di-
rection is given in relation to one axle. Regardless of the tires
used, the height of the center of gravity is given from the center
of the wheel.
4.8.2 Determination of the center of gravity
Center of gravity coordinates in horizontal - direction (axle load
distribution FAW / RAW)
Procedure:
For weighing purposes, the vehicle must be on level ground. Weigh
the individual axle loads (front and rear axle load) and the gross ve-
hicle weight, then the position of the center of gravity (c.o.g.) in vehi-
cle longitudinal direction can be calculated.
To calculate the c.o.g. use the calculation programs on the Unimog
Resource CD or the formulae on the following page.
