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English
• Remove the M6 lock nut (10 mm spanner) and turn the control guide anti-clockwise a couple of
turns. Use a (9 mm) spanner if necessary.
• Now test the belt tension.
• Near the arm of the tensioning roller is a non-
contact magnet switch that detects activation of
the AIOC lever. The switch point of this non-
contact magnetic switch may have been deranged
as a result of adjusting the belt tensioner.
• If this is the case, it must be corrected. (read § 11.4.11 Adjusting magnetic switches)
Second belt drive (engine - hydrostatic pump)
The hydrostatic pump consumes constant and limited capacity. The belt is permanently engaged
and suffers but little dynamic load. Wear and stress on this belt are therefore limited.
• If this belt loses tension or starts making a squeaking sound it must also be tightened.
• The ideal tension of the belt can be tested as
follows: when the back of the belt is pressed
halfway the belt center distance between the
two pulleys with a force of 8 kg, the inward move
should not exceed 10 mm.
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