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. Also note that you are able to contact the dealer from whom you purchased the product for assistance. • Always include this manual when selling, lending, or otherwise transferring the ownership of this product.
■ 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. • Never hold the chain saw in a way in which the saw chain is pointed towards someone else.
■ 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. • Avoid using the chain saw late at night and/or early in the morning.
■ SAFETY SYMBOLS 6. Beware of objects being thrown from 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. 3. When operating the chainsaw, use protective equipment, helmet, visor, ear defenders, and chainsaw safety clothing. 9. Danger: risk of exhaust fumes intoxication. 4. Use the chain saw with two hands. 10.
■ 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” position, the engine stops immediately. Position: Left of the rear handle. CHOKE OPERATION Starting mode when the engine is hot. (choke off) Position: Air cleaner cover. Starting mode when the engine is cold.
■ 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. 2. 3. 4. 5. 6. Power unit Guide bar cover Guide bar Saw chain Plug wrench Owner’s manual. Cutting direction Open the box and install the guide bar and saw chain on the power unit as follows: (4) The saw chain is very sharp. Use chainsaw protective gloves for safety. 1.
■ 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. Prepare a mixture of unleaded petrol and semi-synthetic twostroke oil that meets the specifications of: API TC, ISO-L-EGC, JASO FC (Low Smoke) oil. Recommended mixing ratio is 32:1.
■ 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. z Saw chain Oil Two stroke fuel • Set the ignition switch to “I” position (c). (a) Choke closed (b) Choke open (d) Decompressor (c) Ignition switch • Push in the decompressor button (d). • Pull out the choke lever to the closed position (a). The choke will close and the throttle will be set in the starting position.
■ 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. The brake can also be operated manually when the brake handle is pushed forward towards the guide bar. • To release the chain brake, pull back the brake handle toward the front handle until a “click” sound is heard.
■ 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. ■ STOPPING ENGINE • Release the throttle lever and allow the engine to run at idle for half a minute. • Shift the ignition switch to the STOP position (“0”).
■OTHERS 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. • Fuel consumption increases. Dia 1 Dia 2 ■ SAW CHAIN SHARPENING • Clamp chain saw guide bar in a vice to secure. (Dia 1) • Sharpen chain with a 5/32 file and holder (Oregon part number 16265) Place file on the cutter and push straight forward.
■ADJUSTING 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. • Make sure that the air filter and fuel filter are clean, and the fuel is freshly mixed. • Stop the engine and screw in both the H and L needles until they stop. Never force them.
TROUBLESHOOTING Engine will not start, power loss. - Check that the fuel tank is not empty. Fill with mixed fuel. - The fuel does not reach the carburettor. Change the fuel filter in the fuel tank. - There is water in the fuel. Drain and clean the fuel system . - The air filter is dirty. Clean the air filter. - 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.
CONDITIONS OF WARRANTY The manufacturer warrants the product against faulty materials and workmanship for a period of 2 years from the date of first purchase to the original purchaser. The warranty is applicable when the product is used in a “home owner” application. If products are used for commercial or professional purposes, the warranty period is for 3 months from the date of first purchase. Warranty does not extend to failure due to fair wear and tear.
