Loveshaw Little David LD24, Operator'S Manual

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24
Side Belt Drive Assembly
The side belt drive assembly consist of a center guided belt, a 1/5
hp gear motor, drive and idler roller, belt backing plate, and
spring loaded air cylinder. There are two side belt drive assembly
per machine, one on each side. They are used to drive the box
from the entrance to the exit of the machine. The distance
between the side belts are adjusted via two acme thread lead
screws and four lead nuts. The side belt assemblies each have
two leads nut attached to them. The individual belt drives lead
nuts are threaded the same direction; however they are threaded
opposite on the other belt drive assembly. The Acme thread lead
screws are also threaded opposite hand from one end to the
other. As the lead screws are rotated the side belt drives will
either move in toward each other or away from each other. In
order for the machine to operate properly the side belt drives
must be set to a width that will contact both sides of the box
equally. If the distance between the side belt drives is too wide
the box will not move or possibly stall. If the distance between
the drives is too narrow the box may not enter the machine or the
drive motors may stall. The proper way to set the width of the
side belts is to put the box into the machine with the machine not
running. Rotate the lead screws until the side belts just touch
each side of the box, try pulling the box out of the machine. You
should feel moderate resistance but will be able to pull the box
out. Start the machine and begin processing boxes. If stalling
occurs it may be necessary to adjust belts in closer together.
Adjustments
must be made in small increments. Closing the side
belt drives too tightly will also cause stalling.
Side belt tensioning is obtained by the use of a spring loaded out
air cylinder. The air cylinder when under pressure will extend
outward pushing the side belt outward towards the front of the
machine. The air cylinder allows for full tensioning trough out
the life of the belt. The air cylinder was an integral spring which