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• The belt will have the required tension if you can only pull it by 30 mm halfway between the two rollers.
• Measure the distance from the roller shaft to the adjustment bolt support on both sides to ensure
it is the same so that the roller runs straight. If this is not the case, adjust the adjustment bolts.
• Tighten the lock nut (M10) (A/F 13) to the correct torque so that the adjustment bolt cannot
upset accidentally.
11.5.7 Adjusting the tension of the chain drives
The machine comes supplied
with 3 chain drives:
• Feed belt chain drive
(1)
• Feed roller chain drive
(2)
• Discharge belt
conveyor chain drive
(3)
Caution:
Do not tension the chain as tightly as a belt. The drive would demand too much
power and additional wear would result on the chain and chain wheels. In addition,
a high radial tension will have a detrimental effect on the seals and bearings.
Note:
Also determine the wear on the chain and chain wheel when checking the chain tension.
Should the teeth have been seriously worn, replace the chain wheels and also the chain. Visit
your authorised ELIET distribution centre.
Note:
Use this opportunity to lubricate the chain. (See § AP.B)
11.5.7.1 Checking and adjusting the tension of the feed belt drive chain
• Switch off the engine and remove the ignition key
from the ignition to carry out this maintenance task.
• Open the right safety guard. (See § AP.A-P1)
• This gives you complete access to the chain drive.
• If you can clearly see that the chain sags at the bottom, it must be tensioned.
• First, loosen the 3 bolts and 1 nut (M8) securing the hydromotor by one turn,
to adjust the tension of the chain (A/F 13).
• Turning the nut (M8) of the eye bolt counterclockwise will cause the hydromotor to shift and restore
30 mm