MAINTENANCE
Cooling system
To maintain as low an operating temperature as possible the engine is equipped with a cooling system.
The cooling system consists of:
1.An air intake on the starter unit.
2.Cooling fins on the flywheel.
3.Cooling fins on the cylinder
4.Cylinder cover (leads cold air onto the cylinder).
Clean the cooling system using a brush at least once a week, in difficult conditions more often.
A dirty or blocked cooling system leads to the engine overheating resulting in damage to the cylinder and piston.
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3 |
1 |
2 |
Drive shaft
The flexible drive shaft is lubricated with special grease. The shaft must be lubricated at least every 25 working hours. A tube of drive shaft grease is supplied with every machine. NOTE! Do not use gearbox grease on the drive shaft.
• Lift up the locking button that holds the drive shaft sleeve in the clutch cover.
• Remove the clip that holds the throttle cable on the drive shaft.
• Pull the drive shaft sleeve out of the clutch cover.
• Remove the drive shaft |
from the sleeve either by |
shaking it out or pulling it |
out using pliers. |
Air filter
The air filter should be cleaned regularly removing dust and dirt to avoid:
•carburettor malfunction
•starting problems
•reduced engine power
•unnecessary wear to engine parts
•abnormal fuel consumption
Clean the filter after every 25 hours or more regularly if operating conditions are exceptionally dusty.
Cleaning the air filter Dismantle the air filter cover and remove the air filter. Wash in clean, warm soapy water. Ensure that the filter is dry before refitting. An air filter used for a long period of time can never be cleaned completely. There- fore it is necessary to replace the filter from time to time with a new filter. A dam- aged air filter must always be replaced.
• Coat the surface of the |
shaft with grease from the |
tube. Spread it out using a |
brush or rag. |
• Slide the drive shaft back into the sleeve. Make sure the shaft engages correctly by turning it and pushing at the same time.
•When the shaft is correctly installed in the sleeve the end of the shaft
should project about 10 mm beyond the edge of the sleeve.
•Rotate the shaft and push it in at the same time.
•Install the drive shaft
sleeve in the clutch cover so that the hole is positioned directly underneath the locking button on the clutch cover.
20 – English