A
L.
CARBURETTOR
ADJUSTMENT
The carburetor is adjusted for normal operation during production. The carburetor has three adjustment possibilities:
To set high speed screw (H) : close screw (H)
turning it clockwise without forcing 
.
L:The needle screw (L) governs the fuel flow at low speed and also the acceleration from low to full speed.
To set low speed screw (L): close screw (L)
turning it clockwise without forcing 
.
Then open screw 1 full turn (counterclockwise
).
If acceleration is not smooth, open another 1/8 turn to increase fuel flow .
H:The needle screw (H) governs fuel flow at high speed (throttle valve fully open).
Then open screw 1 full turn (counterclockwise 
).
If the engine speed is too high open the screw
about 1/8 turn (counterclockwise 
)
I:The (I IDLE) screw controls the throttle opening to govern idle speed
(2,800
CAUTION: increased idle speed may cause blade or nylon string head movement.
For precise adjusting contact an authorised service station which offers the latest in toll, parts and technical assistance.
M.
REGULAR
MAINTENANCE
From time to time ensure all screws are tight. Replace damaged, worn, cracked or warped blades. Always make sure nylon string head or blade have been assembled correctly (see sections NYLON STRING HEAD and BLADE ASSEMBLY) and blade fastener is tightened.
1)AIR FILTER CLEANING
(at least every 25 working hours).
A dust clogged air filter may cause carburetor problems.
This may prevent the engine from reaching its maximum speed and cause high fuel consumption and/or difficult starting.
Remove filter cover as shown in figure 1. Carefully clean the inside of filter box. The filter can also be cleaned with compressed air.
2)Every 50 working hours inject the gearcase with gear grease under high pressure through hole (C).
3)SPARK PLUG
From time to time (at least every 50 hours) remove and clean the spark plug and check
the electrode gap (0,5/0,6 mm.). Replace spark plug about every 100 working hours or whenever it is extremely encrusted. Heavily encrusted electrodes can result from an incorrect carburetor setting or from wrong fuel mixture (too much oil in the petrol) or a poor quality of oil in the fuel mix. Check and correct.
4)FUEL FILTER
To change fuel filter remove the tank cap and pull out the filter with a piece of bent wire or long forceps. Contact your Service Station for general servicing and cleaning of internal parts at least once a year.This will reduce the possibility of unexpected problems and will ensure maximum product life and efficiency.
REGULARLY: it is important, in order to avoid engine overheating, to remove dust and dirt from slots, gaps and from in between cylinder fins using a wooden scraper.
LONG STORAGE: empty fuel tank and run engine until dry.
Store trimmer in a dry place.
N.
REPLACING
NYLON
LINE
1)Loosen the locking nut on the base of the nylon head by turning it clockwise.
2)Remove the base cover assembly.
Remove the empty spool from the housing and discard any remaining line.
REWINDING NEW LINE
3)Prepare 2 lengths (8ft each) of 2.4 mm nylon line. Thread 1 end of each line into the two holes on opposite sides of the spool. Pinch the exposed ends flat with a pair of pliers to prevent them slipping through the hole.
4)Wind the two lines in the same direction around the spool.
REASSEMBLY
5)Slide the end of the two lines into the grooves to hold the line temporarily.
6)Position the spool back into the housing and pull the line through the eyelets.
7)Pull about 12cm (5ins) of line out on either side.
8)Reassemble the nylon string head as illustrated; mower gauge,spring and locking nut (tighten in an
9)N.B: In order to extend the nylon line as it wears down, pull the mower gauge downwards and turn it in a clockwise direction to feed out the desired length of line.
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