BAR and Chain Combinations, Troubleshooting | Homelite UT10012

BAR AND CHAIN COMBINATIONS

Length of Bar	Guide Bar Part Number	Chain Part Number
14 in.	PS06331	984296005
16 in.	PS06338	PS06285

TROUBLESHOOTING

Problem	Possible Cause		Solution

Engine will not start.	No spark.		Check spark. Remove air filter cover. Remove spark plug from
[Make sure ignition			cylinder. Reattach the spark plug wire and lay spark plug on top
switch is in the RUN			of cylinder with the metal part of plug touching the cylinder. Pull
( l ) position.]			the starter rope and watch for spark at spark plug tip. If there is no
			spark, repeat test with a new spark plug.
	Engine is flooded.		With the ignition switch OFF, remove spark plug. Move choke
			lever to RUN position (pushed in completely) and pull starter cord
			15 to 20 times. This will clear excess fuel from engine. Clean and
			reinstall spark plug. Set ignition switch to RUN ( l ) position. Push
			and fully release primer bulb 7 times. Pull starter three times with
			choke lever at RUN. If engine does not start, move choke lever to
			HALF CHOKE and repeat normal starting procedure. If engine still
			fails to start, repeat procedure with a new spark plug.

Engine starts but will	Carburetor requires “L”		Contact an authorized service center for carburetor adjustment.
not accelerate prop-	(Low Jet) adjustment.
erly.

Engine starts, then	Carburetor requires “L”		Contact an authorized service center for carburetor adjustment.
dies.	(Low Jet) adjustment.

Engine starts but will	Carburetor requires “H”		Contact an authorized service center for carburetor adjustment.
not run properly at	(High Jet) adjustment.
high speed.

Engine does not reach	Oil/fuel mixture incorrect.		Use fresh fuel and the correct 2-cycle oil mix ratio.
full speed and/or emits	Air filter is dirty.		Clean air filter. Refer to Cleaning the Air Filter in the Maintenance
excessive smoke.	Air filter is dirty.
excessive smoke.			section of this manual.
			section of this manual.
	Spark arrestor screen is		Clean spark arrestor screen. Refer to Cleaning the Spark Arresting
	dirty.		Muffler in the Maintenance section of this manual.
	Carburetor requires “H”		Contact an authorized service center for carburetor adjustment.
	(High Jet) adjustment.

Engine starts, runs,	Carburetor	requires	Turn idle speed screw “T” clockwise to increase idle speed.
and accelerates but	adjustment to idle speed.		Refer to Adjusting the Carburetor in the Maintenance section of
will not idle.			this manual.
Chain turns at idle.	Carburetor	requires	Turn idle speed screw “T” counterclockwise to decrease speed.
	adjustment to idle speed.		Refer to Adjusting the Carburetor in the Maintenance section of
			this manual.
	Air leak in the intake		Contact an authorized service center for a rebuild kit.
	system.

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Homelite UT10012 manual BAR and Chain Combinations, Troubleshooting, Length of Bar Guide Bar Part Number Chain Part Number

Contents

OPERATOR’S Manual Save this Manual for Future Reference Table of Contents Introduction General Safety Rules Read ALL Instructions Kickback Specific Safety RulesRefueling do not Smoke Symbols Symbol Name DESIGNATION/EXPLANATION Service Glossary of Terms Features Product Specifications Assembly Operation ApplicationsHandling the Fuel Safely Mixing the Fuel Filling the Fuel Tank Adding BAR and Chain OILOperating the Chain Brake See Figures 4 Starter Grip Ignition Switch RUN Position Starting the EngineSee Figures 6 To Start a Cold Engine Ignition Switch Stop Position Brake Position Stopping the EngineTo Start a Warm Engine See Figures 12 Idle Speed Screw T Pull Push Adjusting Idle SpeedPull and Push Kickback Precautions Proper Grip on HandlesSee Figures 16 Kickback Rotational Proper Hand Grip Position Proper Grip Work Area Precautions Basic OPERATING/CUTTING ProceduresProper Cutting Stance Chain Line Proper Procedure for Tree Felling Hazardous ConditionsSee Figures 21 Planned Line Fall Removing Buttress Roots BuckingHinge Back CUT Wedge Vertical Loose Section Kickback Overbucking Bucking with a WedgeBucking Logs Under Stress Underbucking Limbing and PruningCutting Springpoles See Figures 31 Maintenance General MaintenanceLubrication Replacing the Guide BAR and Chain BAR Studs Adjusting Flats on Drive Links Adjusting the Chain TensionSee Figures 44 Chain Maintenance See Figures 47≈ .050 in .25 mm ≈ .050 1.25 mm Raker Depth Gauge Clearance Sharpening the Cutters See Figures 49Cutting Corner TOP Plate Side Plate Rivet Hole Heel TOE Gullet Left Hand Cutters Right Hand TOP Plate Filing Angle Side Plate AngleMaintaining Depth Gauge Clearance See Maintaining the Guide BAR Mounting the SAFE-T-TIP Nose GuardMaintaining the SAFE-T-TIP Nose Guard See Figures 59 Cleaning the AIR Filter See Figures 61 Adjusting the Carburetor Cleaning the Starter UnitBefore adjusting the carburetor See Figures 64 Cleaning the Engine Checking the Fuel FilterReplacing the Spark Plug See Figures 67 INSPECTING/CLEANING the Spark Arrestor Screen Inspecting and Cleaning the Chain BrakeStoring the Chain SAW 1 Month or Longer See Figures 72 Length of Bar Guide Bar Part Number Chain Part Number TroubleshootingBAR and Chain Combinations Call US First Warranty Limited Warranty Statement MANUFACTURER’S Warranty Coverage OWNER’S Warranty ResponsibilitiesMaintenance Requirements Coverage Emissions Maintenance Schedule and Warranted Parts List AIR Filter AssyCarburetor Assy Fuel Tank AssyPage Model Number UT10012/UT10512 and UT10032/UT10532 California PropositionSerial Number