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English (Original Instructions)

Thank you for buying a Ryobi chainsaw.
Your chainsaw has been engineered and manufactured to 

Ryobi’s high standard for dependability, ease of operation, 

and operator safety. Properly cared for, it will give you 

years of rugged, trouble-free performance.
Some regions have regulations that restrict the use of 

the product to some operations. Check with your local 

authority for advice.

READ ALL INSTRUCTIONS
Intended use

This chainsaw is designed for cutting branches, trunks, 

logs and beams of a diameter determined by the cutting 

length of the guide bar. It is only designed to cut wood. It 

is only to be used outdoors, by adults.
Do not use the chainsaw for any purpose not listed above. 

This chainsaw is not to be used for professional tree 

services. It is not to be used by children or by persons 

not wearing adequate personal protective equipment and 

clothing.

Residual risks

Even when using the chainsaw as intended, there remains 

a residual risk of harm which cannot be fully prevented. 

The following list of potential hazards should be read and 

understood. You should pay extra attention and care to 

these items to reduce the risk of occurrence or injury.

 

Contact with exposed cutting teeth and saw chain.

 

Access to rotating parts (the saw chain).

 

Unexpected, abrupt movement (kick back) of the 

guide bar.

 

Flying chain parts (thrown off or broken).

 

Flying material (cut from the work piece).

 

Inhalation of saw dust and particles or emissions from 

the petrol engine.

 

Skin contact with petrol/oil.

 

Loss of hearing if no hearing protective equipment 

worn during use.

GENERAL SAFETY RULES

 WARNING

The warnings, labels, and instructions found in this 

section of the operator’s manual are for your safety. 

Failure to follow all instructions may result in serious 

personal injury. Safe operation of this tool requires that 

you read and understand this operator’s manual and 

all labels affixed to the tool. Safety is a combination of 

using common sense, staying alert, and knowing how 

your saw works.

 

Do not operate a chainsaw that is damaged, improperly 

adjusted, or not completely and securely assembled. 

Be sure that the saw chain stops moving when the 

throttle control trigger is released.

GENERAL PRECAUTIONS

 

Know your tool. Read the operator’s manual carefully. 

Learn the saw’s applications and limitations as well as 

the specific potential hazards related to this tool.

 

Do not operate a chainsaw with one hand. Serious 

injury to the operator, helpers, and/or bystanders 

may result from one-handed operation. A chainsaw is 

intended for two-handed use.

 

Do not operate a chainsaw when you are fatigued. 

Never operate a chainsaw when you are tired or under 

the influence of medication, drugs, or alcohol.

 

Keep all parts of your body away from the saw chain 

when the engine is running.

 

Always carry the chainsaw with the engine stopped 

and the brake engaged, the guide bar and saw chain 

to the rear, and the silencer away from your body. 

When transporting the chainsaw, use the appropriate 

guide bar scabbard.

 

Turn off the engine before putting the chainsaw down. 

Do not leave the engine running unattended. As an 

additional safety precaution, apply the chain brake 

before putting down the saw.

 

Do not cut vines and/or small undergrowth (less than 

76 mm (3 inch) in diameter).

 

Silencer surfaces are very hot during and after 

operation of the chainsaw; keep all body parts away 

from the silencer. Serious burns may occur if contact 

is made with the silencer.

 

Always hold the chainsaw with both hands when the 

engine is running. Use a firm grip with thumbs and 

fingers encircling the chainsaw handles.

 

Never let anyone use your chainsaw who has not 

received adequate instructions in its proper use. This 

applies to rentals as well as privately owned saws.

 

Before you start the engine, make sure the saw chain 

is not contacting any object.

 

Operate the chainsaw only in well ventilated areas.

 

Always have a fire extinguisher available when using 

chainsaw.

 

Use guide bar cover during transport and storage.

 

The chainsaw should always be used with correctly 

mounted spiked bumper.

 

Do not adapt your powerhead to a bow guide or use 

it to power any attachments or devices not listed for 

your saw.

Summary of Contents for RCS5145N

Page 1: ...RCS5145N PETROL CHAINSAW Important It is essential that you read the instructions in this manual before assembling maintaining and operating this machine...

Page 2: ...g how your saw works Do not operate a chainsaw that is damaged improperly adjusted or not completely and securely assembled Be sure that the saw chain stops moving when the throttle control trigger is...

Page 3: ...trained to do so Beware of the emission of exhaust gases lubricant mist and saw dust This product is very noisy when operating to prevent long term hearing damage wear hearing protection and keep othe...

Page 4: ...aw chain 7 Use only replacement bars and chains specified by the manufacturer or the equivalent NOTE Refer to Operation in this manual for information on kick back and how to avoid serious personal in...

Page 5: ...hain brake ON Squeeze and release throttle Mix the fuel mix thoroughly and also each time before refueling Add bar and chain oil to the bar and chain reservoir every time that fuel is added to the cha...

Page 6: ...Chain type 0 325 low profile full complement Drive sprocket 7 teeth x 0 325 Engine displacement 51 cm3 Maximum engine power ISO 7293 2 0 kW Recommended maximum engine speed with cutting attachment 11...

Page 7: ...n of the tip of the guide bar or when the wood closes in and pinches the saw chain in the cut Contact at the upper portion of the tip of the guide bar may cause the chain to dig into the object and st...

Page 8: ...synthetic 2 stroke lubricant only Mix 2 lubricant into the petrol This is a 50 1 ratio Mix the fuel thoroughly and also each time before refuelling Mix in small quantities Do not mix quantities large...

Page 9: ...NG A WARM ENGINE Follow the instructions for starting a cold engine steps 1 8 but do not attempt to start in the full choke position skip step 5 Push and release primer bulb 10 times Pull the choke ou...

Page 10: ...cut for you exert only light downward pressure Forcing the cut could result in damage to the bar chain or engine 6 Release the throttle trigger as soon as the cut is completed allowing the engine to...

Page 11: ...ng the right hand side from operator s position of the chain brake lever hand guard and pull towards the front handle until you hear a click FELLING TREES HAZARDOUS CONDITIONS See figure 27 WARNING Do...

Page 12: ...t is a large root extending from the trunk of the tree above the ground Remove large buttress roots prior to felling Make the horizontal cut A into the buttress first followed by the vertical cut B Re...

Page 13: ...DANGER Never start the engine before installing the guide bar chain drivecase cover and clutch drum Without all these parts in place the clutch can fly off or explode exposing the user to possible se...

Page 14: ...ntly and tension as required CAUTION A chain tensioned while warm may be too tight upon cooling Check the Adjusting the chain tension before next use CHAIN MAINTENANCE See figure 51 52 WARNING Check t...

Page 15: ...iled check the depth gauge clearance Use a flat file B not provided and a depth gauge jointer C not provided to lower all gauges uniformly Use a 0 6 mm 0 025 inch depth gauge jointer After lowering ea...

Page 16: ...THE ENGINE See figure 66 67 Clean the engine fins and flywheel fins with compressed air or a brush periodically Dangerous overheating of the engine may occur due to impurities on the engine WARNING Ne...

Page 17: ...stale and leave varnish and gum in the fuel system 3 Drain all bar and chain lubricant from tank into a container approved for lubricant 4 Clean all foreign material from the saw 5 Store it in a well...

Page 18: ...ettor adjustment Engine starts but will not run properly at high speed Carburettor requires H High jet adjustment Contact a service dealer for carburettor adjustment Engine does not reach full speed a...

Page 19: ...s on the guide bar contact a service dealer Bar and chain running hot and smoking Chain brake engaged Release chain brake refer to Operation operating chain brake earlier in this manual Chain tension...

Page 20: ...tronic Industries Australia Pty Ltd Level 1 660 Doncaster Road Doncaster VIC 3108 Australia Techtronic Industries New Zealand Ltd 18 26 Amelia Earhart Avenue Mangere Auckland 2022 New Zealand 96043901...

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