Ryobi Outdoor RY74003D manual Operation, Understanding Your Chainsaw Safety Devices, Guide Bars

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FEATURES

 

 

 

See Figure 1.

(J)

Trigger Release

(A)

Front hand guard/Chain Brake

(K)

Throttle Lock Button

(B)

Front handle

(L)

Chain Oil Cap

(C)

Cylinder cover

(M) Silencer

(D)

Primer bulb

(N)

Carburettor Adjustment

(E)

Choke Lever

(O) Rear handle

(F)

Chain

(P)

Throttle Trigger

(G) SAFE-T-TIP®

(Q) Fuel Mix Cap

(H)

Guide Bar

(R)

On/Off Switch

(I)

Chain Catcher

(S)

Starter/Fan Housing

 

 

(T)

Starter Grip

OPERATION

For your safety, study this entire manual before operating the saw. Pay particular attention to the precautions and instructions listed in the operator’s manual.

WARNING:

The warnings and instructions in this section of the operator’s manual are for your safety and to prevent serious personal injury.

UNDERSTANDING YOUR CHAINSAW SAFETY DEVICES

SAFE-T-TIP® ANTI-KICK-BACK NOSE GUARD

See Figure 2.

The SAFE-T-TIP® (A) prevents kick-back because it covers the tip of the bar where rotational kick-back is generated. Inexperienced persons should never attempt to cut when the SAFE-T-TIP® has been removed from the bar tip.

Users, such as professional loggers who need to draw the tip through the cut, make boring cuts, or cut logs bigger than the bar length, should reinstall the SAFE-T-TIP® as soon as those cuts are complete. When cutting without the SAFE-T-TIP®, the user must use proper techniques as shown in the manual to avoid kick-back.

NOTE: Refer to “Maintenance” later in this manual for instructions on reinstalling the SAFE-T-TIP® nose guard.

LOW KICK-BACK SAW CHAIN

A low-kick-back saw chain is a chain that has met the kick-back performance requirements of ANSI B175.1-2000 (American National Standard for Power Tools - Petrol-Powered Chainsaws - Safety Requirements) when tested on the representative sample of chainsaws below 3.8 c.i.d. specified in ANSI B175.1-2000.

The rakers (depth gauges) ahead of each cutter can minimise the force of a kick-back reaction by preventing the cutters from digging in too deeply at the kick-back zone. Only use replacement chain that is equivalent to the original chain or has been certified as a low kick-back chain.

As saw chains are sharpened, they lose some of the low kick-back qualities and extra caution is required.

GUIDE BARS

Generally, guide bars with small radius tips have somewhat lower kick-back potentials.

When making a replacement, be sure to order one of the Ryobi bars listed for your saw in this operator’s manual. The proper size SAFE-T-TIP® nose guard comes installed on the bar. Use only guide bars that have a provision for mounting the SAFE-T-TIP®.

CHAIN BRAKE

See Figure 3.

Chain brakes are designed to quickly stop the chain from rotating. When the chain brake lever/hand guard is pushed toward the bar, the chain should stop immediately. A chain brake does not prevent kick-back.

The chain brake should be cleaned and tested daily. Refer to “Operation” later in this manual for additional information.

(A) RUN POSITION

(B) BRAKE POSITION

WARNING:

Even with daily cleaning of the mechanism, the dependability of a chain brake to perform under field conditions cannot be certified. Keep the SAFE-T-TIP® nose guard on your saw’s guide bar and use proper cutting techniques.

UK

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Contents OPERATOR’S Manual Table of Contents IntroductionGeneral Safety Rules Read ALL InstructionsSpecific Safety Rules General PrecautionsProper Clothing for Safety Basic Precautions in the CUTTING/ Work AreaMaintenance Precautions Refuelling do not SmokeSymbols Symbol Name ExplanationSpecifications Understanding Your Chainsaw Safety Devices OperationGuide Bars SAFE-T-TIP ANTI-KICK-BACK Nose GuardKICK-BACK Precautions Fuel and RefuellingChain OIL System Handling the Fuel SafelyPreparing for Cutting Starting the EngineStopping the Engine Work Area Precautions Basic OPERATING/CUTTING ProceduresAdjusting the Carburettor Push and PullAdjusting Idling Speed Proper Procedure for Tree FellingOperating the Chain Brake Felling Trees Hazardous ConditionsLimbing and Pruning Removing Buttress RootsBucking Maintenance Adjusting the Chain TensionCutting Spring Poles Assembling the BAR and ChainChain Maintenance Sharpening the CuttersParts of a Cutter TOP Plate Filing AngleCleaning the AIR Filter Maintaining the Guide BARMaintaining the SAFE-T-TIP Nose Guard Mounting the SAFE-T-TIP Nose GuardCleaning the Starter Unit Cleaning the EngineCleaning the Spark Arresting Silencer Checking the Fuel FilterStoring the Chainsaw 1 Month or Longer TroubleshootingBAR and Chain Combinations Problem Possible Cause Solution WarrantyGuarantee Statement Rtsa / Rtuk / RTG Safety Directive EC Declaration of Conformity

RY74003D specifications

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