Twose Opticut 220, Руководство оператора и каталог запасных частей

Страница: 31 / 86

OPTICUT 220/260/300
Rotary Disc Mowers
21
Replacement of Safety Pins on Individual Discs
Hitting an obstruction may lead to a large load on the individual disc. To prevent possible
damage to discs and ridge caps, buffers are installed. If the protective caps are cut, they
can be replaced quickly and easily.
Steps for replacing protective caps;

When hitting an obstruction, stop the machine and switch off the tractor as soon as
possible.

Check for damage.

Rotate the discs so they are pointed at 90 degrees to each other.

This way, you can easily and efficiently determine whether any of the discs has an angle
greater than 90 degrees.

Clean the ridge to avoid dirt reaching the bearing area.

Unscrew the bolt of the top lid and remove it.

Unscrew the bolt of the disc and remove it together with the quick hitch.

Check for damage to the disc, blade bolts, protective forgings and quick couplings.

In the event of damage, elements must be replaced and the disc must be rebalanced –
this is essential for long life and efficiency of the machine.

Unscrew the M24 nut and remove the upper and lower flanges.

Remove the cut protective caps from both parts.

Clean the surface of both parts.

Lubricate with ‘Kluberpaste’ 46MR 401 grease to ensure required slip condition.

Place the upper part into the lower one and replace the protective caps.

When reassembling, be careful of the proper positioning of the bracket onto the gear
shaft.

After installation, make sure the discs are completely perpendicular to each other -
if
they are not, repositioning of the flange shaft is required.

Tighten the M24 nut at a torque of 300Nm.

Attach the disc with quick coupling - tighten and bond bolts with a torque of 72Nm.

Check if the quick coupling is correctly positioned - when replacing blades, the bearings
should not come into contact.

Attach the upper cover - tighten and bond bolts with a torque of 72Nm.

Restart the machine and observe for possible vibrations.

In the event of vibrations, the entire disc must be rebalanced or replaced.