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18

LIMBING

See Figure 21.

Limbing is removing branches from a fallen tree. 

  Work slowly, keeping both hands on the chain saw with 

a firm grip. Always make sure your footing is secure and 

your weight is distributed evenly on both feet. 

  Leave the larger support limbs under the tree to keep the 

tree off the ground while cutting. 

  Limbs should be cut one at a time. Remove the cut limbs 

from the work area often to help keep the work area clean 

and safe.

  Branches under tension should be cut from the bottom 

up to avoid binding the chain saw.

  Keep the tree between you and the chain saw while limb-

ing. Cut from the side of the tree opposite the branch you 
are cutting.

PRUNING

See Figure 22.

Pruning is trimming limbs from a live tree.

  Work slowly, keeping both hands on the chain saw with 

a firm grip. Always make sure your footing is secure and 
your weight is distributed evenly on both feet.

  Do not cut from a ladder, this is extremely dangerous. 

Leave this operation for professionals.

  Do not cut above chest height as a saw held higher is 

difficult to control against kickback.

  When pruning trees it is important not to make the finishing 

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.

  Underbuck the branch 1/3 through for your first cut.

  Your  second  cut  should  overbuck  to  drop  the  branch 

off.

  Now make your finishing cut smoothly and neatly against 

the main member so the bark will grow back to seal the 
wound.

fINIshING CuT

WARNING:

If the limbs to be pruned are above chest height, hire a 
professional to perform the pruning.

fIRsT CuT 

1/3 DIAMETER

sECOND CuT

LOAD

Fig. 

SPRINGPOLES

See Figure 23.

A springpole is any log, branch, rooted stump, or sapling 
which is bent under tension by other wood so that it springs 
back if the wood holding it is cut or removed. On a fallen 
tree, a rooted stump has a high potential of springing back 
to the upright position during the bucking cut to separate 
the log from the stump.  Watch out for springpoles, they 
are dangerous.

WARNING:

Springpoles are dangerous and could strike the operator, 
causing the operator to lose control of the chain saw. This 
could result in severe or fatal injury to the operator.

spRINGpOLE

Fig. 3

OPERATION

Fig. 1

CuT LIMBs ONE AT A TIME AND LEAvE suppORT LIMBs 

uNDER TREE uNTIL LOG Is CuT

2

4

1

3

Summary of Contents for P540

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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