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Installation
HC-7X NEXSTAR
General Installation
For information specific to your crane, such as mounting hole diameter, bolt size and grade, and hydraulic
requirements, see General Dimensions.
1. Reference General Dimensions for minimum chassis GVWR needed for crane.
2. The vehicle must be equipped with an engine speed control and tachometer.
3. Ensure the mounting surface is properly reinforced to withstand the capacity loading of the crane.
Ensure the outriggers are used to provide total stability for the truck.
4. If not using an Auto Crane body, cut the proper sized hole in the mounting location (centered with
mounting bolts) for access to hydraulic connections.
5. Ensure the mounting bolts are the proper size and grade and torque to 501 ft-lb.
6. Pressure and return hoses are not furnished with the crane and must be supplied by the installer
with lengths determined at installation. Reference General Specifications for pressure and flow
requirements.
Maintain ISO 18/16/13 fluid cleanliness levels. Failure to use clean hydraulic
hoses and components may contaminate the crane and hydraulic system and
void warranty.
Excess flow will cause erratic operation and too little flow will cause poor
crane operation.
IMPORTANT
: The recommended hydraulic reservoir size for the average industry application CRANE
ONLY
installation is two times the crane hydraulic flow rate. For crane applications requiring more than
25% crane operation time while the PTO is engaged and/or additional equipment is operated by the same
hydraulic system, it is recommended that an appropriately sized, larger hydraulic reservoir and/or a
forced air hydraulic oil cooler be installed. The addition of other auxiliary hydraulic equipment will require
additional capacity.
NOTICE
!
CAUTION