Homelite UT10012, UT10032 Adjusting the Carburetor, Cleaning the Starter Unit, See Figures 64

Page 29

MAINTENANCE

ADJUSTING THE CARBURETOR

See Figures 64 - 66.

Before adjusting the carburetor:

nUse a brush or compressed air to clean the starter cover vents.

nClean the air filter. Refer to Cleaning the Air Filter in the Maintenance section of this manual.

nAllow the engine to warm up prior to adjustment of engine idle speed.

WARNING:

Weather conditions and altitude may affect carburetion. Do not allow bystanders close to the chain saw while adjusting the carburetor.

Idle Speed Adjustment —The idle speed adjustment controls how much the throttle valve stays open when the throttle trigger is released. To adjust:

nTurn idle speed screw “T” clockwise to increase idle speed.

nTurn idle speed screw “T” counterclockwise to decrease idle speed.

WARNING:

THE SAW CHAIN SHOULD NEVER TURN AT IDLE. Serious personal injury may result from the saw chain turning at idle.

CLEANING THE STARTER UNIT

See Figure 65.

Use a brush or compressed air to keep the cooling vents of the starter assembly free and clean of debris.

29

AIR FILTER

Fig. 64

STARTER COVER
VENTS	Fig. 65

IDLE

SPEED

SCREW

“T”

Fig. 66

Image 29

Contents Save this Manual for Future Reference OPERATOR’S ManualIntroduction Table of ContentsRead ALL Instructions General Safety RulesKickback Specific Safety RulesRefueling do not Smoke Symbol Name DESIGNATION/EXPLANATION SymbolsService Glossary of Terms Product Specifications FeaturesAssembly Applications OperationHandling the Fuel Safely Mixing the FuelAdding BAR and Chain OIL Filling the Fuel TankOperating the Chain Brake See Figures 4Starting the Engine Starter Grip Ignition Switch RUN PositionSee Figures 6 To Start a Cold EngineStopping the Engine Ignition Switch Stop Position Brake PositionTo Start a Warm Engine See Figures 12Idle Speed Screw T Pull Push Adjusting Idle SpeedPull and Push Proper Grip on Handles Kickback PrecautionsSee Figures 16 Kickback Rotational Proper Hand Grip Position Proper GripBasic OPERATING/CUTTING Procedures Work Area PrecautionsProper Cutting Stance Chain LineHazardous Conditions Proper Procedure for Tree FellingSee Figures 21 Planned Line FallBucking Removing Buttress RootsHinge Back CUT Wedge Vertical Loose Section KickbackOverbucking Bucking with a WedgeBucking Logs Under Stress Limbing and Pruning UnderbuckingCutting Springpoles See Figures 31General Maintenance MaintenanceLubrication Replacing the Guide BAR and ChainBAR Studs Adjusting 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 ClearanceSee Figures 49 Sharpening the CuttersCutting Corner TOP Plate Side Plate Rivet Hole Heel TOE Gullet Left Hand Cutters Right HandSide 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 67Inspecting and Cleaning the Chain Brake INSPECTING/CLEANING the Spark Arrestor ScreenStoring the Chain SAW 1 Month or Longer See Figures 72Length of Bar Guide Bar Part Number Chain Part Number TroubleshootingBAR and Chain Combinations Call US First Limited 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 UT10012/UT10512 and UT10032/UT10532 California PropositionSerial Number