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GENERAL SAFETY RULES

KIcKBAcK

See Figures 1 - 2.

 

WARNING: Kickback may occur when the moving chain 
contacts an object at the upper portion 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 can cause the chain to dig into the 
object  and  stop  the  chain  for  an  instant.  The  result  is 
a lightning fast, reverse reaction which kicks the guide 
bar up and back toward the operator. If the saw chain 
is pinched along the top of the guide bar, the guide bar 
can be driven rapidly back toward the operator. Either of 
these reactions can cause loss of saw control which can 
result in serious injury. Do not rely exclusively upon the 
safety devices built into the saw. As a chain saw user, 
you should take several steps to keep your cutting jobs 
free from accident or injury.

 

The following precautions should be followed to mini-
mize kickback:

  1.  Always grip the saw firmly with both hands. Hold the 

saw firmly with both hands when the unit is running. 
Place your right hand on the rear handle and your left 
hand on the front handle with your thumbs and fingers 
encircling the chain saw handles. A firm grip together 
with a stiff left arm will help you maintain control of 
the saw if kickback occurs.

  .  Make sure that the area in which you are cutting is free 

from obstructions. Do not let the nose of the guide bar 
contact a log, branch, fence, or any other obstruction 
that could be hit while you are operating the saw.

  3.  Always cut with the unit running at full speed. Fully 

squeeze  the  throttle  trigger  and  maintain  a  steady 
cutting speed.

  .  Use replacement parts such as low kickback chain, 

SAFE-T-TIP

®

 anti-kickback nose guards, chain brakes 

and special guide bars that reduce the risks associated 
with rotational kickback.

    Use only the replacement guide bars and low kickback 

chains specified by the manufacturer for the saw.

  With a basic understanding of kickback, you can reduce 

or  eliminate  the  element  of  surprise.  Sudden  surprise 
contributes to accidents.

  Keep proper footing and balance at all times.

  Do not cut above shoulder height or overreach when cutting.

  Keep the SAFE-T-TIP

®

 anti-kickback nose guard properly 

mounted on the guide bar to prevent rotational kickback.

  Follow the sharpening and maintenance instructions for 

the saw chain.

  Push and Pull - This reaction force is always opposite to 

the direction the chain is moving where wood contact is 
made. Thus, the operator must be ready to control the 
PULL when cutting on the bottom edge of the bar, and 
PUSH when cutting along the top edge. 

See Figure 3.

KICKBACK 

DANGER ZONE

Fig. 

ROTATIONAL 

KICKBACK

BAR shOwN wIThOuT sAfE-T-TIp

®

 NOsE GuARD fOR 

ILLusTRATION puRpOsEs ONLy.

Fig. 1

push

Fig. 3

puLL

Содержание P540

Страница 1: ...l give you years of rugged trouble free performance WARNING To reduce the risk of injury the user must read and understand the operator s manual before using this product Thank you for your purchase O...

Страница 2: ...enance 19 25 Troubleshooting 26 Warranty 27 Parts Ordering Service Back Page TABLE OF CONTENTS INTRODUCTION This product has many features for making its use more pleasant and enjoyable Safety perform...

Страница 3: ...fety information etc contained in this manual Failure to comply can result in accidents involving fire electric shock or serious personal injury n Keep handles dry clean and free of oil and grease n D...

Страница 4: ...if kickback occurs 2 Make sure that the area in which you are cutting is free from obstructions Do not let the nose of the guide bar contact a log branch fence or any other obstruction that could be h...

Страница 5: ...d area out of the reach of children When storing chain saw remove battery and placethescabbardonthebarandchainorstore thechain saw in a carry case n Remove the battery pack from the chain saw before c...

Страница 6: ...personal injury never use any cordless product in the presence of open flame An exploded battery pack can propel debris and chemicals If exposed flush with water immediately n Do not charge unit in a...

Страница 7: ...The Operator s Manual To reduce the risk of injury user must read and understand operator s manual before using this product Wear Eye Hearing and Head Protection Wear eye protection which is marked t...

Страница 8: ...zardous situation which if not avoided may result in minor or moderate injury CAUTION Without Safety Alert Symbol Indicates a situation that may result in property damage WARNING To avoid serious pers...

Страница 9: ...rt Number 6958301 or 690583002 NOTE This saw was designed for occasional light duty use and has some limitations as to what it can cut Fig 5 chain oil tank cap REAR HANDLE FRONT HANDLE BAR CHAIN SAFE...

Страница 10: ...product Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury WARNING To prevent accidental starting that could cause seri...

Страница 11: ...pack can cause damage to internal components CAUTION Remove battery pack from unit Fill oil tank with Ryobi Bar and Chain Lubricant before starting the chain saw Failure to lubricate the chain will ca...

Страница 12: ...rigger release button will be automatically reset to the lock position This cordless chain saw is not designed for cutting trees larger than 5 in in diameter This cordless chain saw is designed for li...

Страница 13: ...gers are on the same side of the handle is dangerous because a slight kick of the saw can cause loss of control WARNING Never use a left handed cross handed grip or any stance which would place your b...

Страница 14: ...Manual or received adequate instructions for the safe and proper use of this chain saw When felling a tree keep everyone helpers bystanders children and animals a safe distance from the cutting area...

Страница 15: ...force and direction of the wind the lean and balance of the tree and the lo cation of large limbs These things influence the direction in which the tree will fall Do not try to fell a tree along a lin...

Страница 16: ...ugh to the notch when making a backcut The hinge controls the fall of the tree this is the section of wood between the notch and backcut NOTCH BACK CUT Fig 16 Fig 15 kickback Fig 17 HINGE wedge OPERAT...

Страница 17: ...ain saw handles Do not let the chain contact the ground After completing the cut wait for the saw chain to stop before you move the chain saw Always stop the motor before moving from tree to tree Type...

Страница 18: ...uningtreesitisimportantnottomakethefinishing cut next to the main limb or trunk until you have cut off the limb further out to reduce the weight This prevents stripping the bark from the main member U...

Страница 19: ...eries Remove the battery pack from the charger once it is fully charged and ready for use For battery pack storage longer than 30 days Store the battery pack where the temperature is below 80 F and aw...

Страница 20: ...hould face in the direction of chain rotation If they face the opposite direction turn the loop over Place the chain drive links into the bar groove Position the chain so there is a loop at the back o...

Страница 21: ...over screw securely Assure that the chain will rotate without binding Place the hex key back into the storage area Fig 27 Fig 28 hex key Lift the tip of the guide bar up to check for sag MAINTENANCE C...

Страница 22: ...ndicated have the drive sprocket replaced by a Ryobi Service dealer How to Sharpen the Cutters See Figures 33 34 Be careful to file all cutters to the specified angles and to the same length as fast c...

Страница 23: ...ch feed pressure causes excessive wear to bar and chain Results from using a file with diameter too large or file held too high Depth Gauge Clearance See Figure 37 39 The depth gauge should be maintai...

Страница 24: ...should be replaced Wear inside the bar rails which permits the chain to lay over sideways Bent guide bar Cracked or broken rails Spread rails In addition guide bars with a sprocket at their tip must b...

Страница 25: ...T TIP Nose Guard See Figures 41 42 Mount the SAFE T TIP on the bar nose NOTE The tab fits in the recessed hole in the bar Tighten the screw with your finger From the finger tight position tighten the...

Страница 26: ...chain Refer to Chain Tension earlier in this manual 2 Check oil tank 1 Retension chain Refer to Chain Tension earlier in this manual 2 Refer to Assembling the Bar and Chain earlier in this manual 3 In...

Страница 27: ...extendtorepairsmadenecessarybynormalwearorbythe use of parts or accessories which are either incompatible with the ryobi brand outdoor product or adversely affect its operation performance or durabil...

Страница 28: ...model and serial number from the product data plate MODEL NUMBER SERIAL NUMBER How to obtain Replacement Parts Replacement parts can be purchased online at www ryobitools com or by calling 1 800 860...

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