Eliet C550 ZR, Руководство пользователя

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41
English
11.4.5. Checking the belt tension
The machine has two belts for the blade drive, one belt for the traction roller drive, and one belt
for the discharge jack drive.
After a number of working hours, stretching will occur (only with new belts), causing it to lose its
tension. Insufficient tension on these belts means that the belts will slip under loading, increasing
wear and tear and reducing the belt's life span. A belt that is insufficiently tensioned will flap
around, increasing the chance that it will come off the belt pulley. Belt tension must therefore be
checked regularly.
Warning: Only check the belt tension when the engine is turned off. Remove the
spark plug cap. Wearing gloves is mandatory.
Belt tension traction roller drive.
• Remove both blade drive protection covers. (read § 15.1; page 56)
• This is the belt between the engine shaft and the reduction gearbox for the traction roller chain
drive. This belt transmission is not equipped with a tensioner and cannot be disconnected. Here
the belt is permanently tensioned between the two belt pulleys.
Please note: As the reduction gearbox has a large gear ratio, the force required to drive the belt
pulley is rather limited. As the input axle of the reduction gearbox has only a limited diameter, it
is not advisable and also prohibited by the manufacturer to apply strong belt tension!
• To measure the correct tension, the following rule of thumb applies: If the
belt is pressed together halfway between the two belt pulleys with both
fingers, it should be possible to squeeze these together up to a distance
of 4 cm.
• If you suspect there is insufficient traction on the roller during operation,
this may indicate that this drive belt is slipping. Then it is recommended
to tighten the belt a little.
• Before tightening the belt, tilt the reduction gearbox a little further to the
left to increase the distance between the two belt pulleys, thereby
increasing the tension on the belt.
• To remove the reduction gearbox, unscrew
the M6 nut on the adjustment bolt by one turn
(spanner size 10).
• Tilt the transmission box to the left as much as
possible and tighten the M6 nut on the adjust-
ment bolt. Check that the tension is adequate.
Repeat this procedure until the correct tension
is obtained.
4 cm