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chain tension (A/F 13).
• If you can move the chain up and down in the cen-
tre between the two chain wheels between 5 and 10
mm, the tension is OK.
• If the correct tension has been achieved, retighten
the securing bolts. (A/F 13)
• Carefully close the right safety guard.
11.5.7.2 Checking and adjusting the tension of the feed roller drive chain
• Switch off the engine and remove the ignition key from the ignition to carry
out this maintenance task.
• Open the left safety guard. (See § AP.A-P1)
• The chain drive can be found in the supporting arm of the feed roller. Open the
cover to gain access to the chain (see § AP.A-P5).
• If you can move the chain approximately 30 mm to and from, then it needs
tensioning.
• Loosen the two securing bolts (M8) that serve to retain the hydromotor.
(Loosen the left bolt and right nut 1 turn) (A/F 13).
• Tension the chain by tightening the nut (M6) clockwise on the threaded rod. (A/F 10)
• If you press the chain in the centre between the two chain wheels towards the
working and slack strands and you measure a distance between them of 55 mm
the tension has been correctly adjusted.
• Retighten the securing bolts (M8) (A/F 13).
• Replace the safety cover and close the large safety guard. (See § AP.A-P1 en AP.A-P5)
11.5.7.3 Checking and adjusting the tension of the discharge belt drive chain
• Switch off the engine and remove the ignition key
from the ignition to carry out this maintenance task.
• Open the left safety guard. (See § AP.A-P1)
• Remove the cover (see § AP.A-P5).
• If you notice that the chain sags, it should be tensioned.
• The drive hydromotor is screwed on to a guide plate with 3
bolts (M6). This plate, in turn, has been screwed down on to
the side frame of the discharge conveyor with two bolts (M8).
Loosen these two bolts one turn (A/F 13). (Figure)
• By turning the nut (M8) on the eye bolt clockwise, you can slide the guide plate which restores
chain tension.
• Chain tension is correct if you can only move it to and from over a distance of 5 mm.
• Retension the guide plate using the two bolts (M8).
• Replace the safety cover and close the large safety guard. (See § AP.A-P1)
5 mm