Homelite UT10570 manual Basic OPERATING/CUTTING Procedures, Work Area Precautions, See Figures 26

Page 15

OPERATION

BASIC OPERATING/CUTTING PROCEDURES

Practice cutting a few small logs using the following technique to get the “feel” of using your saw before you begin a major sawing operation.

1.Take the proper stance in front of the wood with the saw idling.

2.Accelerate the engine to full throttle just before entering the cut by squeezing the throttle trigger.

3.Begin cutting with the saw against the log.

4.Keep the engine at full throttle the entire time you are cutting.

5.Allow the chain to cut for you; exert only light downward pressure. Forcing the cut could result in damage to the bar, chain, or engine.

6.Release the throttle trigger as soon as the cut is com- pleted allowing the engine to idle. Running the saw at full throttle without a cutting load can result in unneces- sary wear to the chain, bar, and engine.

7.Do not put pressure on the saw at the end of the cut.

WORK AREA PRECAUTIONS

See Figure 25.

Cut only wood or materials made from wood; no sheet metal, no plastics, no masonry, no non-wood building materials.

Never allow children to operate your saw. Allow no person to use this chain saw who has not read this operator's manual or received adequate instructions for the safe and proper use of this chain saw.

Keep everyone – helpers, bystanders, children, and animals, a SAFE DISTANCE from the cutting area. During felling operations, the safe distance should be a least twice the height of the largest trees in the felling area. During bucking operations, keep a minimum distance of 15 feet (4.5 m) between workers.

Fig. 25

Always cut with both feet on solid ground to prevent being pulled off balance.

Do not cut above chest height as a saw held higher is difficult to control against kickback forces.

Do not fell trees near electrical wires or buildings. Leave this operation for professionals.

Cut only when visibility and light are adequate for you to see clearly.

ADJUSTING THE CARBURETOR

See Figures 26 and 27.

Before adjusting the carburetor, clean the air filter and the starter cover vents. Allow the engine to warm up prior to carburetor adjustment. Refer to “Maintenance” later in this manual.

AIR FILTER

Fig. 26

STARTER COVER

 

VENTS

Fig. 27

The carburetor is factory set and should not require adjusting. The carburetor will permit only limited adjust- ment of the “L” (Low Jet) and “H” (High Jet) needles. Any adjustment should be done by a Homelite Service Center.

Under no circumstances should the “L” (Low Jet) and “H” (High Jet) needles be forced outside the range of adjust- ment.

CAUTION:

Serious damage can occur to the engine if improper adjustments are made to the “L” and “H” needles.

Do not force the “L” and “H” needles outside the adjustment range!

Page 15

Image 15
Contents Save this Manual for Future Reference Operators ManualIntroduction Table of ContentsRead ALL Instructions General Safety RulesRefueling do not Smoke Specific Safety RulesGeneral Precautions Safety ApparelSee Figure Maintenance PrecautionsPush and Pull KickbackSymbol Name Explanation SymbolsUT10550 SpecificationsChain OIL Front Handcap GUARD/CHAIN Brake FeaturesSee Figures 4 Understanding Your Chain SAW Safety DevicesOperation Chain BrakeHandling the Fuel Safely Kickback PrecautionsFuel and Refueling See Figures 6See Figures 10, 11 Adding OILOperating the Chain Brake See Figures 9RUN Position Primer Bulb Choke Lever Starter Grip Ignition Switch RUN PositionStarting the Engine See Figures 13 throughSee Figures 20 Ignition Switch Stop Position Brake PositionStopping the Engine Trigger Release Throttle TriggerProper Grip Chain Line Preparing for CuttingProper Grip on Handles SeeSee Figures 26 Basic OPERATING/CUTTING ProceduresWork Area Precautions Adjusting the CarburetorFelling Trees Adjusting Idle SpeedSee Figures 30, 31, 32, Proper Procedure for Tree FellingHinge Back CUT Wedge Vertical CUT Loose Section Horizontal Kickback Wedge Removing Buttress RootsBucking Bucking with a WedgeLOG Supported AT ONE END Finishing CUT Bucking Logs Under StressCutting Springpoles Limbing and PruningMaintenance Assembling the BAR and ChainSee Figures 41 through Sprocket Chain Drive Links BAR Groove BAR Studs Adjusting PINCutters Guide BAR PlateChain Tensioning Screw Flats on Drive Links Adjusting the Chain TensionChain Maintenance See Figures 52, 53,See Figures 57, 58, 59, 60, Sharpening the CuttersLeft Hand Cutters Right Hand See , 65, Maintaining Depth Gauge ClearanceTOP Plate Filing Angle Side Plate AngleMaintaining the Guide BAR Maintaining the SAFE-T-TIPNOSE GuardSee Figures 68 See Figures 70, 71, Cleaning the AIR FilterMounting the SAFE-T-TIP Nose Guard Tighten 3/4 TurnReplacing the Spark Plug Cleaning the Starter UnitCleaning the Engine Checking the Fuel FilterSpark Arrestor Screen Nuts Muffler Cleaning the Spark Arresting MufflerChain Catcher Clutch Cover Brake Band Clean the Chain Brake Storing the Chain SAW 1 Month or LongerTroubleshooting Problem Possible Cause SolutionBAR and Chain Combinations Troubleshooting Limited Warranty Statement WarrantyHomelite Consumer PRODUCTS, INC