Homelite UT10517/18 manual Bar and chain combinations, Troubleshooting

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bar and chain combinations

Model No.	Length of Bar	Guide Bar Part Number	Chain Part Number	drive Links
UT10517	18 in.	310627001	671258001	62 link 3/8 in. low profile
UT10518	18 in.	310628001	901430001	72 link 0.325 in. standard
UT10520	20 in.	310629001	900920027	78 link 0.325 in. standard

troubleshooting

	Problem	Possible Cause			Solution
	Engine will not start.	No spark.			Clean or replace spark plug. Reset spark plug gap. Refer to Spark
	[Make sure ignition				Plug Replacement earlier in this manual.
	switch is in the RUN	Engine is flooded.			With the ignition switch OFF, remove spark plug. Move choke
	( l ) position.]	Engine is flooded.			With the ignition switch OFF, remove spark plug. Move choke
	( l ) position.]				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 Inspecting/Cleaning the Spark
		dirty.			Arrestor Screen in the Maintenance section of this manual.
		Carburetor requires “H”			Contact an authorized service center for carburetor adjustment.
		(High Jet) adjustment.

	Engine starts, runs,	C a r b u re t o r		re q u i re s	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.	C a r b u re t o r		re q u i re s	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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Contents OPERATOR’S Manual Introduction Table of contentsRead ALL Instructions General safety rulesSpecific safety rules Refueling do not SmokeKickback Symbol Name SymbolsService Glossary of terms Product Specifications FeaturesTrigger Primer bulbChoke Lever Know Your Chain SAWGuide BAR LOW Kickback SAW ChainOperation AssemblyUnpacking Packing ListHandling the Fuel Safely Mixing the FuelPremium Exact MIX See Figure Operating the Chain BrakeSee Figures 4 Run Position BrakeSee Figures 6 Starting the EngineTo start the engine Starter GripSee Figures 12 Stopping the EngineChoke lever Trigger Throttle triggerPull and Push Adjusting Idle SpeedIdle speed Screw T Pull PushKickback Precautions Proper Grip on HandlesSee Figures 17 Basic OPERATING/CUTTING Procedures Work Area PrecautionsProper Cutting Stance Thumb on Undersideof Handle bar Straight Chain line ArmProper Procedure for Tree Felling Hazardous ConditionsSee Figures 22 Removing Buttress Roots BuckingVertical Cut Loose SectioN Horizontal Kickback Bucking with a Wedge Bucking Logs Under StressOverbucking Limbing and Pruning UnderbuckingCutting Springpoles See Figures 32General Maintenance MaintenanceLubrication See Figures 35Cutters chain rotation Chain drive links ADJUSTINGMounting Bar Tensioning Screw Groove Chain drive linksSee Figures 45 Adjusting the Chain TensionChain Maintenance See Figures 48≈ .050 Raker clearance Inspect drive Sprocket See Figures 50 Sharpening the CuttersSide 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 60Cleaning the AIR Filter Choose one of the following cleaning optionsSee Figures 62 Cleaning the Starter Unit Adjusting the CarburetorBefore adjusting the carburetor See Figures 65Clean Cylinder Fins Clean flywheel Fuel filter Cleaning the EngineChecking the Fuel Filter Replacing the Spark PlugSee Figures 73 Storing the ProductBar and chain combinations TroubleshootingCall US First Limited Warranty Statement WarrantyYour Warranty Rights and Obligations Warranty Serial Number California Proposition