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OWNER’S MANUAL PETROL CHAIN SAW 4518 AND 5020 USER MANUAL, MAINTENANCE INSTRUCTIONS AND SPARE PARTS READ THIS MANUAL CAREFULLY BEFORE OPERATING THE MACHINE WARNING: THIS SYMBOL INDICATES IMPORTANT SAFETY PRECAUTIONS...
Safety Precautions INTRODUCTION • Read this Owner/Operator Manual carefully. Be sure you understand how to operate this chainsaw properly before you use it. Failure to do so could result in serious injury. • Keep this manual handy so that you may refer to it later whenever any questions arise.
■ SAFETY AND OPERATION • This chain saw is equipped with a very sharp saw chain, and when used incorrectly the saw chain can be extremely dangerous. • Improper handling can cause accidents which may in turn lead to serious injury or death. For this reason, you should always be careful to adhere to the following instructions when using your chain saw.
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■ AVOID NOISE PROBLEMS • Check and follow the local regulations for sound level and hours of operations for garden machinery. • In general, operate chain saws between 8 am, and 5 pm on week days and 9 am to 5 pm.weekends. •...
6. Beware of objects being thrown from ■ SAFETY SYMBOLS the operating zone. 1. Warning, Danger, Caution 7. Warning! Danger of kickback 2. Read the documentation and safety instructions which are provided in this user manual. 8. Directive 2000-14/CE. Guaranteed noise levels.
■ EXPLANATION OF SYMBOLS ON THE MACHINE For safe operation and maintenance, symbols are carved in relief on the machine: FUEL TANK Fuel tank 2 stroke mix Position: Fuel cap CHAIN OIL Chain oil tank Position: oil cap IGNITION SWITCH Setting the switch to the “O”...
■ INSTALLING THE GUIDE BAR AND CHAIN Power unit Plug wrench Guide bar cover Guide bar Saw chain ■ The chainsaw package contains the items as illustrated. 1. Power unit 2. Guide bar cover 3. Guide bar 4. Saw chain 5.
■ TWO-STROKE FUEL WARNING • Fuel is very flammable. Do not smoke or bring any flame or sparks near fuel. Always stop the engine and allow it cool before refuelling. Refuel outdoors on bare ground, restart engine at least 5m away from the refuelling stop. The engine is lubricated by oil mixed into petrol.
■ STARTING THE ENGINE • Keep clear of the saw chain as it will start rotating when engine starts. • Fill fuel and chain oil tanks respectively, and tighten the caps securely. Saw chain Oil Two stroke fuel • Set the ignition switch to “I” position (c). Choke closed (d) Decompressor (b) Choke open...
■ CHAIN BRAKE • The chainsaw is equipped with an automatic chain brake to stop the saw chain rotation when activated, eg kickback during saw cutting. The brake is automatically operated by inertial force, which acts on the weight fitted inside the chain brake handle.
■ RUNNING IN During the first ten hours of work, avoid running the engine at maximum speed for a prolonged period until all the components have bedded in. After the engine has been run in, it will reach its maximum power. After two hours of work, check that all nuts bolts and screws are securely fastened and tighten if necessary.
■ O THERS Check for fuel leakage, loose fastenings and damage to major parts, especially handle joints, guide bar mountings and chain brake. If any defects are found, make sure they are repaired before operating the chainsaw. Check guide bar and saw chain for excessive wear or damage, and replace as necessary. Never fit a new chain on a worn sprocket, or a worn chain on a new sprocket.
■ SAW CHAIN SHARPENING: Be sure to wear safety gloves. ■ THE SAW CHAIN NEEDS TO BE SHARPENED WHEN: • Sawdust becomes like powder. • You need extra force to cut. • The cut path does not go straight. • Vibration increases. Dia 1 Dia 2 •...
■ A DJUSTING THE CARBURETTOR L low speed adjust screw H high speed adjust screw T idle adjust screw The carburettor has been factory adjusted, but may require fine tuning due to a change in operating conditions. Carburettor adjustments should be made by the supplying dealer using specialist tools as follows. •...
There are carbon deposits in the exhaust muffler restricting the engine. Clean or change the muffler. Spark plug is worn. Replace spark plug. Saw chain will not rotate. Chain brake is activated. Deactivate chain brake. ■ Specifications MITOX 4518 Power unit: Peak power (kw): …………………..……………1.8kw Displacement ( ): ..………………………………45.0 Idling speed (r/min): …..………………………….3200...
The manufacturer undertakes to replace any spare parts that are classified as defective by an appointed Mitox service dealer. The manufacturer will not accept liability for the replacement of the machine, either partially or wholly, and/or consequential damages.
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