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English
11.4.3 Belt tension check and adjustment
The machine contains 3 belt drives:
1. Belt drive from the engine to the hydrostatic pump.
2. Belt drive vibrating harrows low speed
3. Belt drive vibrating harrows high speed
The following describes the procedure for tightening the belts.
Caution:
Belt tightening must be done with the engine switched off. Carefully pull off the
cap from the spark plug.
Caution:
Always wear suitable clothing for performing this type of maintenance.
First belt drive (engine - hydrostatic pump)
This is the belt drive between the engine and the hydrostatic pump. This belt is tightened with
a flat tensioning roller that is pulled against the back of the belt when pressing down the dead
man’s handle. It is also a belt transmission that is frequently switched on and off, and it is
therefore subject to slippage.
• If the belt starts to make a squeaking sound or if the dead man’s handle resistance is too low,
this is a sign that the belt tensioning roller needs to be adjusted.
• To tighten the belt, the protective cover must be removed first (read § 15.1).
• You will know that you have reached the proper amount of tension if, just before fully pressing
the dead man’s handle (20 mm of play up to the handle), the belt tensioning roller is already
pressing against the belts and begins to tug onto the spring.
• If this is less than 20 mm, then the force of pressure from the tensioning roller will need to
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