Grillo BEE FLY FD300-700, Использование и обслуживание

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ENGINE - PTO TRANSMISSION BELT
These are self-adjusting and therefore need no adjustment, only the spring tension needs to be checked. To replace
them release the tension spring (fig. 24).
Remove the belt guide (fig. 25) and the two guide screws (fig. 26) for the PTO belt. On the petrol engine the two
engine pulley fixing screws must also be slacked (fig. 27) and the pulley itself pushed towards the engine.
PTO BELTS
Caution! These belts are special, use original belts.
To replace them the procedure is the same as already described for the PTO/engine ones.
Caution! When repositioning the two belt guide screws, do so in such a way that when the belts are in tension they
pass at a distance of 1mm. from the screws (fig. 26).
If the belts remain slack even though the adjusting nut is tight, fit spacing washers between the PTO transmission
and the bracket.
To set the tension use a no. 13 spanner to turn the nut that adjusts the tension spring (fig. 6).
Adjust the tension so that when pressing on the longest section there is a play of between 5 to 8 mm.
The belts must not be able to come off the pulley with the PTO disengaged.
Adjust the blade brake located under the PTO belts (fig. 28), with the blade engaged the skid plate must remain
in line at a distance of 5 mm.
HYDROSTATIC MOTOR BELTS
These are self-adjusting, replace them as soon as they show signs of wear.
To replace them, the two springs on the tensioners (fig. 29) must be released. If the machine is fitted with a hydraulic
pump then the pump must also be removed from its bracket.
USE ORIGINAL BELTS.
TROUBLESHOOTING GUIDE
PROBLEM
With the key in the AVV. [ON] position the instrument panel remains off - PETROL ENGINE
– The battery is not providing any current – Check the connecting leads
– Check the level of electrolyte
– Recharge the battery
– Replace the fuse
The instrument panel comes on, but with the key in the ON pos., the starter motor does not turn
– The battery is not providing enough current – Recharge the battery
– No consent given to start – Speed presetting lever in the STOP position
– Disengage the blades
– Sit in the driving seat
Difficult starting or the engine runs badly
– Carburettor problems – Clean or replace the air filter
– Adjust the carburettor (refer to the engine manual)
– Sediment or dirt in the fuel – Empty out the fuel tank and replace with fresh petrol
– Check the fuel filter and replace if necessary
The starter motor turns but the engine will not start
– No petrol flow – Check that the choke is on (if the engine is cold)
– Check fuel level in the tank
– Check the fuel filter (and replace if necessary)
– Check that the breather hole in the fuel cap is not blocked
– Ignition system fault – Check that the spark plug caps are on properly
– Check that the electrodes are clean and have the right gap
CAUSE REMEDY