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12 

2

1

3

 

 

011451 

Adjusting saw chain tension 

1

 

 

011453 

The saw chain may become loose after many hours of use. 
From time to time check the saw chain tension before use. 
Move the lever in the upright position. 

1

2

 

 

011454 

Press in the lever. With the lever depressed, make a 
quarter turn on it counterclockwise to loosen the nut 
lightly. (Pressing in the lever leads to the fitting of lever 
into the nut.) 

2 - 4 mm

5

4

3

1

2

 

 

011455 

Turn the adjusting dial to adjust saw chain tension. 
Grasp the saw chain in the middle of the guide bar and 
lift up. The gap between the guide bar and the tie strap 
of the saw chain should be approx. 2 - 4 mm. If the gap 
is not approx. 2 - 4 mm, slightly turn the adjusting dial 
which secures the guide bar. At this time, adjust with the 
tip of guide bar slightly pointing up. 

1

2

 

 

011456 

With the lever depressed, turn it fully clockwise to 
tighten the nut firmly. 

   

011457 

Return the lever to its original position. 

 

CAUTION: 

• 

Excessively high tension of saw chain may cause 
breakage of saw chain,  wear of the guide bar 
and breakage of the adjusting dial. 

• 

Installing or removing saw chain should be carried 
out in a clean place free from sawdust and the like. 

Battery adapter (Accessory) 

1

2

4

3

5

2

3

 

 

011636 

1. Battery cartridge 
2. Button 
3. Adapter 
4. Hook 
5. Tool 

1. Press in 
2. Tighten 

1. Low 
2. High 
3. Adjusting dial 
4. Guide bar 
5. Saw chain 

1. Press in 
2. Loosen 

1. Lever 

1. Press in 
2. Tighten 
3. Loosen 

Summary of Contents for BUC300

Page 1: ...1 G ENGLISH Original instructions INSTRUCTION MANUAL IMPORTANT Read Before Using Cordless Chain Saw BUC250 UC250D BUC300 UC300D 011442 ...

Page 2: ... battery cartridge guide bar and chain filled oil tank according to EPTA Procedure 01 2003 WARNING Use appropriate combination of the guide bar and saw chain Otherwise personal injury may result END314 1 Symbols The following show the symbols used for the equipment Be sure that you understand their meaning before use Read instruction manual Wear eye protection Wear ear protection Wear a helmet gog...

Page 3: ...UC250D BUC300 UC300D Specifications see SPECIFICATIONS table Conforms to the following European Directives 2000 14 EC 2006 42 EC They are manufactured in accordance with the following standard or standardized documents EN ISO 11681 2 The EC Type Examination Certificate No 4814056 14001 The EC Type Examination per 2006 42 EC was performed by DEKRA Testing and Certification GmbH Enderstraße 92b 0127...

Page 4: ...ery Keep your hair clothing and gloves away from moving parts Loose clothes jewellery or long hair can be caught in moving parts 16 If devices are provided for the connection of dust extraction and collection facilities ensure these are connected and properly used Use of dust collection can reduce dust related hazards Power tool use and care 17 Do not force the power tool Use the correct power too...

Page 5: ...trol 7 Use extreme caution when cutting brush and saplings The slender material may catch the saw chain and be whipped toward you or pull you off balance 8 Carry the chain saw by the front handle with the chain saw switched off and away from your body When transporting or storing the chain saw always fit the guide bar cover Proper handling of the chain saw will reduce the likelihood of accidental ...

Page 6: ...dance with the instruction manual 3 Ensure safe positioning of the chain saw during car transportation to avoid fuel or chain oil leakage damage to the tool and personal injury 4 Regularly check the functionality of chain brake 5 Do not fill the chain oil near fire Never smoke when you fill the chain oil 6 National regulation may restrict the use of the chain saw 7 If the equipment gets heavy impa...

Page 7: ... cautionary markings on 1 battery charger 2 battery and 3 product using battery 2 Do not disassemble battery cartridge 3 If operating time has become excessively shorter stop operating immediately It may result in a risk of overheating possible burns and even an explosion 4 If electrolyte gets into your eyes rinse them out with clear water and seek medical attention right away It may result in los...

Page 8: ...Front hand guard Top handle Battery cartridge Carabiner or rope attachment point Guide bar Saw chain Sprocket cover Chain cover Lock off button Switch trigger Front handle 13 14 Serrated rail claw stop Battery cover 1 3 4 5 9 2 6 8 7 13 12 11 14 10 013143 ...

Page 9: ...ing the battery cartridge into the tool always check to see that the switch trigger actuates properly and returns to the OFF position when released 1 2 011445 To prevent the switch trigger from being accidentally pulled a lock off button is provided To start the tool depress the lock off button and pull the switch trigger Release the switch trigger to stop Checking the chain brake NOTE If the chai...

Page 10: ...in Low battery voltage The remaining battery capacity is too low and the tool will not operate In this situation remove and recharge the battery Battery remaining capacity indicator only for models with Battery BL3622A Battery BL3622A is equipped with the battery remaining capacity indicator 1 2 011715 Press the CHECK button to indicate the battery remaining capacity The indicator lamps will then ...

Page 11: ... loosen the nut until sprocket cover comes off Pressing in the lever leads to the fitting of lever into the nut 3 Turn the adjusting dial counterclockwise to release the saw chain tension 4 Remove the sprocket cover 5 Remove the saw chain and guide bar from the chain saw 6 To install the saw chain fit in one end of the saw chain on the top of the guide bar and the other end of it around the sprock...

Page 12: ...hain should be approx 2 4 mm If the gap is not approx 2 4 mm slightly turn the adjusting dial which secures the guide bar At this time adjust with the tip of guide bar slightly pointing up 1 2 011456 With the lever depressed turn it fully clockwise to tighten the nut firmly 011457 Return the lever to its original position CAUTION Excessively high tension of saw chain may cause breakage of saw chai...

Page 13: ... removing or installing a battery cartridge from or on the battery adapter is the same as that of removing or installing it from or on the tools Press down the hook securely as far as it will go when the battery adapter is hooked on the waist belt and similar objects Arm cord hook Accessory CAUTION Do not attach the holder of arm cord hook to other than the extension cord Failure to do so may caus...

Page 14: ...h to be cut before switching on Cutting without bringing the lower guide into contact with the branch may cause the guide bar to wobble resulting in injury to operator Saw the wood to be cut by just moving it down WORKING WITH THE CHAIN SAW The first time user should as a minimum practice do cutting logs on a saw horse or cradle Pruning trees 1 010921 CAUTION Keep all parts of the body away from t...

Page 15: ... lower edge so that the saw will be deflected away from your body A B A B 006915 Cut wood under tension on the pressure side A first Then make the final cut on the tension side B This prevents the bar from becoming trapped Limbing CAUTION Limbing may only be performed by trained persons A hazard is presented by the risk of kick back When limbing support the chain saw on the trunk if possible Do no...

Page 16: ...iameter Do not make the scarf too large Then make the diagonal cut Cut any corrections to the scarf across its entire width 006923 Make the back cut a little higher than the base cut of the scarf The back cut must be exactly horizontal Leave approximately 1 10 of the trunk diameter between the back cut and the scarf The wood fibers in the uncut trunk portion act as a hinge Do not cut right through...

Page 17: ...e it sharpened in a MAKITA specialist repair shop File and file guiding Use a special round file optional accessory for sharpening Saw chain type 91VG and 91PX Saw chain round file diameter 4 0 mm Saw chain type 90SG Saw chain round file diameter 4 5 mm 1 2 011075 The file should only engage the material on the forward stroke Lift the file off the material on the return stroke Sharpen the shortest...

Page 18: ...e Insert the battery cartridge into the tool 011448 Pull the switch trigger to flow built up dust or particles off the oil discharge hole by discharging chain oil Remove the battery cartridge from the tool Reinstall the sprocket cover and saw chain on the tool Replacing the sprocket Before fitting a new saw chain check the condition of the sprocket 1 2 010927 CAUTION A worn sprocket will damage a ...

Page 19: ...g of the safety features the following maintenance must be performed regularly Warranty claims can be recognized only if this work is performed regularly and properly Failure to perform the prescribed maintenance work can lead to accidents The user of the chain saw must not perform maintenance work which is not described in the instruction manual All such work must be carried out by authorized ser...

Page 20: ...e replace battery cartridge Release chain brake Recharge the battery cartridge If recharging is not effective replace battery cartridge Fill the oil tank Clean the groove Adjust amount of oil delivery Install the battery cartridge as described in this manual Recharge the battery cartridge If recharging is not effective replace battery cartridge Ask your local authorized service center for repair A...

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Page 24: ...24 www makita com Makita Jan Baptist Vinkstraat 2 3070 Belgium Makita Corporation Anjo Aichi Japan 884950G221 ...

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