Homelite UT10552 manual Hazardous Conditions, Proper Procedure for Tree Felling, See Figures 21

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operation

FELLING TREES

HAZARDOUS CONDITIONS

WARNING:

Do not fell trees during periods of high wind or heavy ­precipitation. Wait until the hazardous weather has ended.

When felling a tree, it is important that you heed the following warnings to prevent possible serious injury.

nDo not cut down trees having an extreme lean or large trees with rotten limbs, loose bark, or hollow trunks. Have these trees pushed or dragged down with heavy equip- ment, then cut them up.

planned line of

fall

90°

135° from

planned line

nDo not cut trees near electrical wires or buildings.

of fall

PATH OF

nCheck the tree for damaged or dead branches that could fall and hit you during felling.

nPeriodically glance at the top of the tree during the backcut to assure the tree is going to fall in the desired direction.

nIf the tree starts to fall in the wrong direction, or if the saw gets caught or hung up during the fall, leave the saw and save yourself!

PROPER PROCEDURE FOR TREE FELLING

See Figures 21 - 24.

nPick your escape route (or routes in case the intended route is blocked). Clear the immediate area around the tree and make sure there are no obstructions in your planned path of retreat. Clear the path of safe retreat approximately 135° from the planned line of fall.

nConsider the force and direction of the wind, the lean and balance of the tree, and the location of large limbs. These things influence the direction in which the tree will fall. Do not try to fell a tree along a line different from its natural line of fall.

nCut a notch about 1/3 the diameter of the trunk in the side of the tree. Make the notch cuts so they intersect at a right angle to the line of fall. This notch should be cleaned out to leave a straight line. To keep the weight of the wood off the saw, always make the lower cut of the notch before the upper cut.

nMake the backcut level and horizontal, and at a minimum of 2 in. above the horizontal cut of the notch.

Note:  Never cut through to the notch. Always leave a band of wood between the notch and back cut (approxi- mately 2 in. or 1/10 the diameter of the tree). This is called “hinge” or “hingewood.” It controls the fall of the tree and prevents slipping or twisting or shootback of the tree off the stump.

SAFE RETREAT

planned

135°

 

PATH

 

45°

OF SAFE

line of fall

 

 

RETREAT

 

 

 

90°

45°

135°

Fig. 21

HINGE

2 in. (5 cm) or 1/10 DIA

NOTCH -

APPROX. 1/3

DIAMETER OF

TRUNK

BACK CUT

2 in. (5 cm)

Fig. 22

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Contents UT10552 OPERATOR’S ManualIntroduction Table of contentsRead ALL Instructions General safety rulesKickback Specific safety rulesRefueling do not Smoke Symbol Name SymbolsService Glossary of terms Release FeaturesProduct Specifications Assembly Applications OperationHandling the Fuel Safely Mixing the FuelAdding BAR and Chain OIL Filling the Fuel TankOperating the Chain Brake See Figures 4Starting the Engine Ignition switchSee Figures 6 RUN PositionStopping the Engine Throttle Lock button Trigger Ignition switch StopTo Start a Warm Engine See Figures 12Idle speed screw T Pull Push Adjusting Idle SpeedPull and Push See Figures 16 Kickback PrecautionsProper Grip on Handles Basic OPERATING/CUTTING Procedures Work Area PrecautionsProper Cutting Stance UndersideSee Figures 21 Proper Procedure for Tree FellingHazardous Conditions Bucking Removing Buttress RootsHinge Back CUT Wedge Vertical Cut Loose SectioN Horizontal KickbackBucking Logs Under Stress Bucking with a WedgeOverbucking Finishing CUTLimbing and Pruning UnderbuckingCutting Springpoles See Figures 31General Maintenance MaintenanceLubrication See Figures 34BAR Groove Chain Drive Links Chain Drive LinksSprocket Flats on Drive Links Adjusting the Chain TensionSee Figures 44 See Figures 47 Chain Maintenance≈ .050 in .25 mm 050 1.25 mm Raker Depth Gauge ClearanceLeft Hand Cutters Right Hand Sharpening the CuttersSee Figures 49 Side Plate Angle TOP Plate Filing AngleMaintaining Depth Gauge Clearance SeeMounting the SAFE-T-TIP Nose Guard Maintaining the Guide BARMaintaining the SAFE-T-TIP Nose Guard See Figures 59See Figures 61 Cleaning the AIR FilterCleaning the Starter Unit Adjusting the CarburetorBefore adjusting the carburetor See Figures 64Checking the Fuel Filter Cleaning the EngineReplacing the Spark Plug See Figures 67Plate Deflector Retaining ScrewSBAR and Chain Combinations Call US First TroubleshootingLimited Warranty Statement WarrantyOWNER’S Warranty Responsibilities MANUFACTURER’S Warranty CoverageMaintenance Requirements CoverageAIR Filter Assy Emissions Maintenance Schedule and Warranted Parts ListCarburetor Assy Fuel Tank AssyPage Model Number California PropositionSerial Number UT10552