MAINTENANCE
Adjusting the idle speed, T
Adjust the idling speed with |
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the screw T, if it is necessary |
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to readjust. First turn the |
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idle speed adjusting screw T |
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clockwise until the cutting |
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attachment starts to rotate/ |
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move. |
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Then turn, |
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wise until the cutting |
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attachment stops. A correctly |
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adjusted idle speed setting |
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occurs when the engine runs |
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smoothly in every position. |
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It should also be good |
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margin to the rpm when the | L |
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cutting attachment starts to |
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move. |
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CAUTION! Contact your servicing dealer, if the idle speed setting cannot be adjusted so that the cutting attachment stops. Do not use the machine until it has been properly adjusted or repaired.
High speed needle H
Correctly adjusted carburettor
A correctly adjusted carburettor means that the machine accelerates without hesitation and the machine
A too lean adjusted high speed needle H gives lower power = less capacity, bad acceleration and/or damage to the engine. A too rich adjustment of the two speed needles L and H gives acceleration problems or too low working speed.
Gearbox
There are three grease nipples (A) on the gearbox. Use a grease gun to top up with grease. This should be carried out after approxi- mately every 20 working hours. Use Husqvarna special grease, No. 503 98
Note that the gearbox must
The high speed needle affects the machine’s power, speed, temperature and fuel consumption. A too lean adjustment on the high speed needle H (the high speed needle H is screwed in too much) gives a too high speed resulting in engine damage. Do not allow the engine to run at full speed for more than 10 seconds. Apply full throttle and turn the high speed needle H slowly anticlockwise until the engine runs unevenly. The high speed needle H is then turned slowly clockwise a little until the engine runs smoothly.
Note the engine should be run unloaded when adjusting the high speed needle. Therefore dismantle the cutting equipment, nut, support flange and disc drive before adjusting the high speed needle. The high speed needle is adjusted correctly
H |
not be filled completely with grease. The grease expands as the machine heats up during operation. If the gearbox was com- pletely filled with grease it could damage the seals and lead to leakage.
The lubricant in the gearbox does not normally need to be replaced other than with repair.
Cleaning and lubrication
After you have used the machine clean any resin and plant residue from the blades using cleaning agent 531 00
Always lubricate the blade runners with special grease 531 00
when the machine ‘splatters’ a little . If the machine smokes heavily at the same time as it ‘splatters’ heavily the adjustment is too rich.
NOTE! For optimum setting of the carburettor, contact a qualified servicing dealer who has a revolution counter at his disposal.
before use.
10 – English