July 1977
DUMPING ON LONGITUDINAL GRADES AND SIDE SLOPES
1.
Field users are concerned regarding the stability of the CCE-IHC, Paystar F5070, 71,000 GVWR Dump Truck, while
dumping the payload on side slopes.
2.
Dump truck-drivers and dump site spotter personnel must use extreme caution in spotting any truck of the size of
the CCE Dump, since tipping over of dump trucks is one of the inherent problems of dump trucking.
3.
The following maximum, practical working grades and slopes may be relatively safe under ideal conditions on the
job site:
a. Longitudinal Grade Dumping with Loaded body raised:
Working Angle Range ..........................................................................0 to 4%.
Height Range of Front Axle above Rear Tandem ....................................0 to 8 inches.
b. Side Slope Dumping with loaded body raised:
Working Angle Range ..........................................................................0 to 4%.
Height Range of One Set of Duals above the Other.................................0 to 3 inches.
c. Note: The above values are for stationary dumping, only, with the emergency-parking brakes applied, yellow
diamond knob. Reduce range in half for moving truck dumping.
4.
Exceeding the following maximum grades and slopes will result in a tip-over accident with the CCE-IHC Dump
Truck:
a. Longitudinal Grade Dumping with loaded body raised:
Max. Tipping Angle ..............................................................................13%.
Max. Height of Front Axle above Rear Tandem .....................................19 inches.
b. Side Slope Dumping with loaded body raised:
Max. Tipping Angle .............................................................................14%.
Max. Height of One Set of Duals above the Other ..................................7 inches.
c. Note: The above valves are the unstable, tip-over values, where the truck begins to go over.
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