McHale C430/C460/C470/C490 Bale Chopper
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9.10 Adjusting floor conveyor chain tension
Ensure the loading door is in the open position before beginning for ease of access.
Press button 12 on the control box to open fully, then turn off power. Shut down tractor,
remove key, apply parking brake, and prevent any machine movement, using wheel
chocks if necessary. Disconnect the electrical machine loom from the control box, along
with hydraulic hoses and the PTO shaft.
Before carrying out this adjustment, the floor conveyor must be cleaned thoroughly,
otherwise a false reading will occur if dirt and debris are present around chains. Select
the middle bar along the floor length (arrows) then grab bar on either the left or right
hand end and lift up off the floor. Measure the gap underneath, which should measure
between 40 and 60 mm in height.
If not, it should be adjusted at the rear as follows; using two 24 mm A/F spanners.
1. If gap is too large, loosen the back nut and back off a number of threads. Then
tighten front nut until desired gap is achieved. Re-tighten back nut.
2. If gap is too small, loosen the front nut and back off a number of threads. Then
tighten back nut until desired gap is achieved. Re-tighten front nut.
3. The adjustment must be carried out on both left and right-hand sides, but
should be kept almost identical.
WARNING: Work to be carried out by qualified persons!
This work should only be carried out by qualified persons or your
McHale dealer!
NOTE: Replace all U-bolts once a year
McHale recommends that all floor U-bolts should be replace once a year.
If the machine is getting a lot of use, the U-bolts may break, causing
further unnecessary damage!
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