Makita UC3050A Instruction Manual
Electric chain saw
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Summary of Contents for Makita UC3050A
- Page 1 INSTRUCTION MANUAL Electric Chain Saw UC3050A UC3550A UC4050A UC4550A UC3051A UC3551A UC4051A UC4551A 014371 DOUBLE INSULATION IMPORTANT: Read Before Using.
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Page 2: Specifications
ENGLISH (Original instructions) SPECIFICATIONS Model UC3050A UC3051A UC3550A UC3551A UC4050A UC4051A UC4550A UC4551A Max. chain speed 14.5 m/s (880 m/min) Bar length 300 mm 350 mm 400 mm 450 mm Standard guide Cutting length 260 mm 320 mm 355 mm... -
Page 3: General Power Tool Safety Warnings
GEA005-3 Personal safety Stay alert, watch what you are doing and use General Power Tool Safety common sense when operating a power tool. Do Warnings not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A WARNING Read all safety warnings and all moment of inattention while operating power tools instructions. -
Page 4: Chain Saw Safety Warnings
tool’s operation. If damaged, have the power tool When cutting a limb that is under tension be repaired before use. Many accidents are caused by alert for spring back. When the tension in the poorly maintained power tools. wood fibres is released the spring loaded limb 23. -
Page 5: Additional Safety Rules
The chain saw is not intended for commercial use. Do not overload the chain saw. Personal protective equipment Clothing must be close-fitting, but must not obstruct mobility. Wear the following protective clothing during work: A tested safety helmet, if a hazard is •... - Page 6 using the saw in the open air, ensure that the 16. Guide the chain saw such that no part of your cable employed is intended for open-air use and body is within the extended path of the saw chain is rated accordingly. (see figure).
- Page 7 Have any damage to the plastic housing repaired Safety features properly and immediately. Always check that the safety features are in Do not use the saw if the switch trigger is not working order before starting work. Do not use working properly.
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Page 8: Designation Of Parts
DESIGNATION OF PARTS (Nut model: the sprocket cover is tightened by nuts.) For Model UC3050A, UC3550A, UC4050A, UC4550A 014372 (Lever model: the sprocket cover is tightened by lever.) For Model UC3051A, UC3551A, UC4051A, UC4551A 014373... - Page 9 (For all models) 014514 Rear handle Lever Oil filler cap Switch trigger Adjusting screw/dial Lock-off button Front handle Sprocket cover Chain catcher Front hand guard Rear hand guard Guide bar cover Guide bar Spike bumper Cord hook Adjusting screw for oil pump Saw chain Oil level sight (at the bottom)
- Page 10 To remove the saw chain, perform the following steps: 1. Guide bar Loosen the sprocket cover. 2. Hole (For nut models) Turn the chain adjusting screw counterclockwise to release the saw chain tension. (For lever models) Turn the adjusting dial to "-" direction to loosen the saw chain tension.
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Page 11: Operation
Adjusting saw chain tension Engaging extension cord The saw chain may become loose after many hours of CAUTION: use. From time to time check the saw chain tension Make sure that the extension cord is unplugged to • before use. the mains outlet. - Page 12 CHECKS Before starting work, carry out the following checks: Checking the chain tension Reclaimend WARNING: Always withdraw the mains plug before checking • the chain tension, and wear safety gloves. (For nut models) 006921 1. Loosen Lubricate the saw chain and bar using biologically 2.
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Page 13: Adjusting The Chain Lubrication
If the saw chain does not stop immediately, do not • screw. use the saw under any circumstances. Consult WORKING WITH THE CHAIN SAW Makita authorized service centers. Checking the run-down brake CAUTION: Switch on the chain saw. Always use a front handle and rear handle and •... - Page 14 Bucking Limbing 1. Spike bumper 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 not cut with the tip of the bar, as this presents a risk of kickback.
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Page 15: Maintenance
Only maintenance work described in this instruction manual may be performed by the user. Any other work must be carried out by MAKITA authorized service centers. Cleaning the chain saw Clean the saw regularly with a clean rag. The handles, in particular, must be kept free of oil. -
Page 16: Sharpening The Saw Chain
When the saw chain has been files are not suitable. resharpened several times, have it sharpened in − Diameter of the round file for each saw chain is as MAKITA authorized service center. follows: Sharpening criteria: Chain blade 91PX: 4.0 mm −... - Page 17 They must be return sprocket bearing at least once a week. Before inspected regularly by MAKITA authorized service adding new fresh grease, carefully clean the 2 mm hole centers. This measure is for your own safety.
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Page 18: Replacing Carbon Brushes
To maintain product SAFETY and RELIABILITY, repairs, Replacing carbon brushes any other maintenance or adjustment should be performed by Makita Authorized Service Centers, 1. Limit mark always using Makita replacement parts. 001145 Remove and check the carbon brushes regularly. Replace when they wear down to the limit mark. Keep the carbon brushes clean and free to slip in the holders. -
Page 19: Troubleshooting
Only use accessory or attachment for its stated purpose. If you need any assistance for more details regarding these accessories, ask your local Makita Service Center. Saw chain • Guide bar cover • Guide bar •... - Page 20 Makita Corporation www.makita.com 885287-3...