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RCS-3540C / 4046C / 4450C PETROL CHAIN SAW OPERATOR’S MANUAL Important ! It is essential that you read the instructions in this manual before mounting and operating this machine.
Thank you for buying a Ryobi chainsaw. GENERAL SAFETY RULES Your new chainsaw has been engineered and manufactured to Ryobi’s high standard for dependability, ease of operation, WARNING and operator safety. Properly cared for, it will give you years The warnings, labels, and instructions found in this of rugged, trouble-free performance.
SAFETY RULES ■ The chain saw should always be used with correctly Serious injury to the operator, helpers, and/or bystanders may result from one-handed operation. A chainsaw is mounted spiked bumper. intended for two-handed use. ■ FOLLOW THE SHARPENING and maintenance ■...
Refer to “Operation-Adjusting Idling Speed” later in this manual. If the saw chain still moves at idling speed after adjustment has been made, contact a Ryobi service dealer for adjustment and discontinue use until the repair is made. WARNING All chainsaw service, other than items in the operator’s...
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SYMBOLS Some of the following symbols may be used on this tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer. SYMBOL NAME DESIGNATION/EXPLANATION Safety Alert Precautions that involve your safety. To reduce the risk of injury, user must read and understand Read The Operator’s Manual operator’s manual before using this product.
SPECIFICATIONS RCS-3540C RCS-4046C RCS-4450C 35 cc 40 cc 44 cc Weight - No bar, chain, fuel or oil 4.6 kg 4.6 kg 4.6 kg Fuel tank capacity 310 cm 310 cm 310 cm Oil tank capacity 210 cm 210 cm...
See Figure 3. comes in contact with the eyes, wash them immediately Use Ryobi Bar and Chain Oil. It is designed for chains with clean water. If irritation is still present, see a doctor and chain oilers, and is formulated to perform over a wide immediately.
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OPERATION To Start a Warm Engine: OPERATING THE CHAIN BRAKE(Fig. 4-5) ■ Set the ignition switch to the RUN ( I ) position. Check the operating condition of the chain brake prior to ■ Make sure the chain brake is in the run position by pulling each use.
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OPERATION manual or received adequate instructions for the safe and KICKBACK PRECAUTIONS proper use of this chain saw. See Figures 15 - 16. ■ Keep everyone – helpers, bystanders, children, and WARNING animals, a SAFE DISTANCE from the cutting area. During KICKBACK occurs when the moving chain contacts felling operations, the safe distance should be a least an object at the upper portion of the tip of the guide...
OPERATION ■ Do not cut down trees having an extreme lean or large To keep the weight of the wood off the saw, always make trees with rotten or dead limbs, loose bark, or hollow the lower cut of the notch before the upper cut. trunks.
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OPERATION ■ When pruning trees it is important not to make the fl ush BUCKING WITH A WEDGE cut next to the main limb or trunk until you have cut off See Figure 27. the limb further out to reduce the weight. If the wood diameter is large enough for you to insert a soft This prevents stripping the bark from the main member.
WARNING ■ Remove the bar mounting nuts using the combination wrench provided. When servicing, use only iden ti cal Ryobi replacement parts. Use of any other parts may create a hazard or ■ Remove the clutch cover. cause product damage.
MAINTENANCE ADJUSTING THE CHAIN TENSION • Too low increases the potential for kickback. • Not low enough decreases cutting ability. See Figures 44 - 46. ■ If the cutter teeth hit hard objects such as nails and stones, or are abraded by mud or sand on the wood, WARNING have an authorized service center sharpen the chain.
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MAINTENANCE WARNING CAUTION Make sure the chain has stopped before you do any Improper chain sharpening increases the potential work on the saw. of kickback. Every week of use, reverse the guide bar on the saw to distribute the wear for maximum bar life.The bar should WARNING be cleaned every day of use and checked for wear and Failure to replace or repair a damaged chain can...
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MAINTENANCE ■ Make a test cut, then adjust the H needle for best cutting CLEANING THE ENGINE power, not for maximum speed. The H needle is restricted See Figures 66 - 67. to 1/4 turn. Clean the cylinder fi ns (B) and fl...
MAINTENANCE operation of the chain saw. To avoid serious personal Abide by local regulations for the safe storage and handling injury, keep all body parts away from the muffl er. of petrol. Excess fuel should be used in other 2-cycle engine ■...
TROUBLESHOOTING Problem Possible Cause Solution Engine will not start. No spark. Check spark. Remove air fi lter cover. Remove spark plug from [Make sure ignition cylinder. Reattach the spark plug wire and lay spark plug on top switch is in the RUN of cylinder with the metal part of plug touching the cylinder.
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TROUBLESHOOTING Problem Possible Cause Solution Bar and chain running Chain oil tank empty. Oil tank should be fi lled every time fuel tank is fi lled. hot and smoking. Chain tension is too tight. Tension chain per instructions in Adjusting the Chain Tension in the Maintenance section of this manual.
WARRANTY - STATEMENT All Ryobi products are guaranteed against manufacturing defects and defective parts for a period of twenty four (24) months from the date stated on the original invoice drawn up by the retailer and given to the end user.