ZS MK2
10
Safety rules
www.zepro.com
3.1.1
Vehicle chassis requirements
In order to comply with the applicable underrun
protection standards, there are requirements for the
vehicle chassis on which the rear tail lift is mounted.
The moment of inertia in a cross-section on the
current frame beam (excluding any support frame)
shall not be less than 937 cm4. Thus the frame beam
cross-section must measure at least 220x70x4 mm,
which corresponds to a minimum moment of inertia
of 937cm4 around the x-axis. See
Picture 7.
If in doubt, contact ZEPRO for support.
Max. 258 mm.
70
70
220
4
R6(x2)
X
Y
Picture 7. Cross section of ve-
hicle chassis’ frame beam
Max. 450 mm.
(Air suspension)
Max. 500 mm.
(Conventional suspension)
8º
3.1.2
Statutory dimensions
Make sure the installation location allows the tail lift to meet the statutory dimensions for underrun protec
-
tion when in transport mode
Distance between the platform and the ground when the vehicle is unladen:
Max 450 mm for vehicles with air suspension.
Max 500 mm for vehicles with conventional suspension.
If the departure angle with the above setting is less than 8°, the distance between the platform and the
ground on an unladen vehicle must be increased until the angle reaches 8°, but by not more than 550 mm.
Horizontal distance from the outermost part of the vehicle to the platform: Max. 258 mm.
See Picture 8.
Picture 8. Statutory dimensions for underrun protection
m
WARNING!
The above dimensions are the minimum permit-
ted for the installation of underrun protection. The
strength requirements for mounting the tail lift
usually require larger dimensions.
