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Makita Chain Saw Instruction Manual UC3020A UC3520A UC4020A User's Guide, Owner's Manual

Summary

This comprehensive guide covers the operation, maintenance, and rigorous safety protocols for high-performance chain saws, models UC3020A through UC4020A. Designed specifically for cutting lumber and logs, these robust tools feature double insulation and advanced performance specifications. The manual ensures optimal usage by providing critical safety warnings, detailed handling instructions, and guidance on mandatory maintenance checks to guarantee safe and reliable operation. Essential reading for professionals or serious DIY enthusiasts committed to using power equipment correctly.

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Page 1 Text Content

Chain Saw MODEL UC3020A MODEL UC3520A MODEL UC4020A

DOUBLE INSULATION

WARNING: For your personal safety, READ and UNDERSTAND before using. SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

Page Summary Contents For Makita Chain Saw Instruction Manual UC3020A UC3520A UC4020A User's Guide, Owner's Manual

Page 1 Chain Saw MODEL UC3020A MODEL UC3520A MODEL UC4020A DOUBLE INSULATION WARNING: For your personal safety, READ and UNDERSTAND before using. SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
Page 2 SPECIFICATIONS Model UC3020A UC3520A UC4020A Max. chain speed (m/s) 13.3 Cutting length 300 mm 350 mm 400 mm Type 90SG Saw chain Pitch 3/8” Acoustic power level L WA av d B (A) to EN 50144 -1 1) Sound...
Page 3 ............Chain brake released/applied ENH016-4 EC-DECLARATION OF CONFORMITY The undersigned, Kato, as authorized by, declare that ....................Prohibited! the MAKITA machines, Type: ...........
Page 4 4. Keep children away. 20. Check damaged parts. Do not let visitors touch the tool or extension cord. Before further use of the tool, a guard or other part All visitors should be kept away from work a...
Page 5 4. The chain saw is not intended for commercial use. 2. Always ensure in particular that the extension cable used is of adequate cross-section (see 5. Do not overload the chain saw. “SPECIFICATIONS”)....
Page 6 15. Guide the chain saw such that no part of your body When bucking, keep clear of adjacent trunks. is within the extended path of the saw chain (see Always observe the bar tip. figure). Use a trestle...
Page 7 Maintenance First aid 1. Withdraw the plug from the socket before carrying ...................Do not work alone. Always work out any adjustments or maintenance. within shouting distance of a second 2....
Page 8 Parts supplied Sprocket cover Rear handle Switch trigger Oil level sight Oil filter cap Rear hand guard Serrated rail Front handle (claw stop) Front hand guard Lock-off button Guide bar Chain catcher ...
Page 9 FUNCTIONAL CAUTION: DESCRIPTION Always be sure that the tool is switched off and unplugged before adjusting or checking function on the tool. Switch action CAUTION: Before plugging in the tool, always...
Page 10 8. Turn the adjusting dial counterclockwise to slide the adjusting pin in the direction of arrow. 1. Adjusting pin 9. Place the sprocket cover on the chain saw so that the hook at its back cover is in...
Page 11 Press in the lever. With the lever depressed, make a quarter turn on it counter- clockwise to loosen the nut lightly. (Pressing in the lever leads to the fitting of lever into the nut.) 1. Press in. 2...
Page 12 OPERATION Lubrication CAUTION: Always be sure that the tool is switched off and unplugged before Reclaimend oil lubricating the saw chain. Lubricate the saw chain and bar using a biologically degradab...
Page 13 Checking the switch action CAUTION: Always unplug the tool before testing the switch trigger. Locking the switch trigger in the ON position is prohibited. It must not be possible to depress the switch...
Page 14 WORKING WITH THE CHAIN SAW Bucking For bucking cuts, rest the serrated rail shown in the figure on the wood to be cut. With the saw chain running, saw into the wood, using the rear handle to raise the...
Page 15 Observe local regulations if you wish to fell a tree. Before starting felling work, ensure that: (1) Only persons involved in the felling operation are in the vicinity; (2) Any person involved has an ...
Page 16 Cleaning the chain saw Clean the saw regularly with a clean rag. The handles, in particular, must be kept free of oil. Checking the plastic housing Carry out regular visual inspections of all parts of...
Page 17 File and file guiding Use a special round file (optional accessory) for saw chains, with a diameter of 4.5 mm, to sharpen the chain. Normal round files are not suitable. The file should only engage th...
Page 18 Cleaning the oil filter at the oil discharge hole Small dust or particles may be built up in the oil filter at the oil discharge hole during operation. Small dust or particles built up in the oil filt...
Page 19 Insert the push nut with its correct side facing up as shown in the figure into the oil discharge hole to secure the filter. When the filter cannot be secured with a disfigured push nut, replace the p...
Page 20 ACCESSORIES CAUTION: These accessories or attachments are recommended for use with your Makita tool specified in this manual. The use of any other accessories or attachments might present a risk of in...
Page 24 Makita Corporation Anjo, Aichi, Japan

Manual Details

Brand Makita
Pages 24
File Size 1021.99 KB
Published May 26, 2026
87 views

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Frequently Asked Questions

What precautions should be taken when using the saw?

Always wear a helmet, goggles, and ear protection. Also follow safety instructions such as keeping the work area clean and ensuring proper electrical setup.

How often must the chain and run-down brakes be maintained?

The braking systems are critical safety features and must be inspected regularly by a MAKITA specialist repair shop to ensure your safety.

What should I do when storing the saw for a long time?

Empty the oil tank, fill it with a small quantity of engine oil (SAE 30), run the chain saw briefly to flush residues, and store it on a suitable surface.

Can this chainsaw be connected to any power supply?

It must only be connected to a single-phase AC power supply of the same voltage as indicated on the nameplate, ideally from public low-voltage distribution systems between 220 V and 250 V.