Инструкция GRILLO MD 22 — страница 13

Инструкция

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Инструкция для GRILLO MD 22 на русском языке. Документ можно использовать для ознакомления с информацией, относящейся к данной модели.

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MD22/ Translation of the original instructions

ENGINE BELT - CUTTING DECK BLADE

The engine – blade belt is self-adjusting. Therefore no adjustment is required. Simply check the spring

tension (fig. 14). Check that during operation the belt I always in the centre of the stretcher (fig. 14, ref.

A). The stretcher has to stick about 5/8 mm out of the frame (fig. 24). To replace the belt remove the

spring (fig. 14, ref. B)

130 MP CUTTING DECK MAINTENANCE

To ensure the deck belt works properly and to obtain a uniform cut, please follow these instructions:

- put the cutting deck in the lowest position.

- adjust the front arms (fig. 13) in order to set the front part of the cutting deck at 35 mm from the ground

(fig. 27): measure the point A as indicated in fig. 28.

- regulate the adjusting device (fig. 13/A) in order to set the rear part of the cutting deck at 35 mm from

the ground (fig. 29): measure the point B as indicated in fig. 28.

To check the cutting deck belt, unscrew the knob (fig. 30, ref. D) and remove the two protections. If you

see that the length of the belt has changed, causing therefore its malfunctioning, you can regulate the

belt tension using the adjusting screw (fig. 31). If you want to replace the belt, please see fig. 32 to re-

assemble it.

The spring has to be adjusted at 77 mm (fig. 31, ref. B). The stretcher has to be lubricated every 50

working hours (fig. 31, ref. C).

ENGINE – HYDROSTATIC TRANSMISSION BELT

Whenever there is a change in belt length (causing therefore its malfunctioning), the tension can be

regulated by means of the adjustment device (fig. 15). Take care not to compress the spring beneath the

unit completely; belts must be neither too tight nor slack. The spring must be kept set at 44 mm (fig. 15)

BLADE ROTATION

Rotation is started and stopped using the switch no. 1 (fig. 1).

When rotation is engaged , the engine must be running at medium r.p.m (see throttle sticker) and the

machine must not be in the grass for cutting. Never start the blades with the engine at maximum r.p.m.

The machine is equipped with an electromagnetic clutch which also brakes the blade during

disengagement. The blades are also disengaged automatically when the cutting height adjuster lever is

moved to the highest position.

CHANGING THE BELTS

The movement is transmitted from the motor to the hydraulic transmission and to the blades by means of

v-belts. Replace the belts as soon as they show signs of wear!

Their replacement and subsequent adjustment are fairly complex procedures and must be carried out by

an Authorised After-Sales Service Centre.

For the cutting deck – engine belt, release the belt stretcher spring (fig. 14, ref. B)

For the two transmission and hydraulic engine belts proceeds as follows:

-remove the rear and top grids

-undo the belt stretcher nut (fig. 15)

ALWAYS USE ORIGINAL BELTS!

TRACTION RELEASE LEVER

The traction release device is located behind the seat; if the machine breaks down, to allow it to be

towed or moved by hand, move the lever outward (fig. 19/A). In the position shown in fig. 19/B the

machine is in working condition. Check that during working the hydraulic engine piston does not remain

pressed down; if necessary, adjust the nut (fig. 19).

DIFFERENTIAL LOCK ADJUSTMENT

The differential lock has to be activated when the pedal is half way of its travel (fig. 8). To adjust the

activation point of the differential lock use the screw (fig. 9).

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Инструкция GRILLO MD 22 — страница 13

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