300AF
Page: 12 of 17
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15
Belt Replacement & Installation
Choppers utilize rubber V
belt drives to process material. Over time these belts will
stretch and wear out.
Alignment
Before installing V-Belt put a straight edge across each sheave to
ensure that they are properly aligned. If sheaves are not square
against the straight edge loosen set screws on one of the sheaves
to properly align.
Retighten set screws after sheaves are aligned.
Using misaligned sheaves will decrease the life of the belt.
Tension
See Belt Tension Drawing Figure 10
16 Trouble Shooting
Problem Solution
16.A Material Feeding Stops
Too large of a gap exists
between the feed rolls
for the material being
fed
Adjust the set screw on the right hand side of the feedworks to
close the feedroll gap
chain
Inspect chain for adequate tension or if it is broken
Banding is twisted or
bent
Straighten out bent portion or remove it entirely
Worn feedrolls Replace the worn feedrolls
16.B Machine Fails to Cut
Material is too large for
machine
Run appropriately sized material into the machine
Poor knife gap Inspect knife gap to ensure it is within tolerance of .002”-.003”.
Knife edges are dull Rotate or replace knives
16.C Machine will not start/stop running
Motor protection tripped Reset motor
Broken drive belt Replace belt
Failed electrical service Check circuit power
Switch failure Replace switch
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