As the electrical supply required to operate this is a single wire, ground return circuit, it is essential that the
Control Box be bonded to the frame to ensure a good ground. Should the Control Box be mounted directly
onto a fibreglass cab then a separate ground wire MUST be fitted. DO NOT RELY ON GROUNDING
THROUGH THE CAPILLARY TUBE AND DRIVE CABLES ALONE.
INSTALLING THE LOAD CELL IN THE DYNAMOMETER.
Pass the Load Cell carefully from the Control Box to the Dynamometer, ensuring that there are no sharp bends or kinks in
the capillary tube and that it will not be damaged by any adjacent moving part.
Lift the center pulley and "U"-shaped block in the Dynamometer and slide the Load Cell into position so that it locates on its
dowel in the Dynamometer.
IMPORTANT:- It is essential that the platform on which the Load Cell rests and also the mounting face and loading platen
on the Load Cell are completely clean and free of grit when installing the Cell.
Secure the Load Cell to the Dynamometer with the two Allen head screws provided - which must be fully tightened.
Ensure that the Load Cell is correctly located before tightening these screws and that there is no "daylight"
under the Cell.
Clip the Capillary to the structure at regular intervals along its length, especially adjacent to the Dynamometer so that the
Load Cell does not have to support the weight of the hanging capillary. If the Dynamometer is on a "swinging arm" frame,
ensure that there is enough slack on the capillary to accommodate the movement of the Dynamometer, looping the
capillary if necessary. Also be sure there is sufficient slack in the capillary so that it will not be stretched tight around the
boom foot when booming.
INSTALLING THE BOOM FOOT FITTING.
This assembly must be mounted in such a manner that the pulley center lays on the exact center of the boom foot pin.
A steel angle bracket is bolted to this assembly. This bracket may be welded to suitable spacers so that the center of the
pulley is over the center of the boom foot pin. Keep welding clear of the area surrounding the terminating holes and slots.