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16 in. 33cc CHAIN SAW UT10032 / UT10532 Your chain saw has been engineered and manufactured to Homelite’s high standard for dependability, ease of operation, and operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.
n Introduction ... 2 n General Safety Rules ... 3-4 n Specific Safety Rules... 4 n Symbols... 5-6 n Glossary of Terms... 7 n Features... 8-9 n Assembly ... 9 n Operation... 10-20 n Maintenance ... 21-31 n Bar and Chain Combinations ... 32 n Troubleshooting ...
WARNING: Read and understand all instructions. Failure to follow all instructions listed below, may result in electric shock, fire and/or serious personal injury. READ ALL INSTRUCTIONS n Know your tool. Read the operator’s manual carefully. Learn the saw’s applications and limitations as well as the specific potential hazards related to this tool.
n Do not adapt the powerhead to a bow guide or use it to power any attachments or devices not listed for the saw. n The gas powered saw (or electrically powered saw) is classified by CSA as a Class 1C (or Class 2C) saw. It is intended for infrequent use by homeowners, cottag- ers, and campers, and for such general applications as clearing, pruning, cutting firewood, etc.
Some of the following symbols may be used on this tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer. SYMBOL NAME Safety Alert Read The Operator’s Manual Wear Eye, Hearing, and Head Protection SAFE-T-TIP Nose Guard...
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The following signal words and meanings are intended to explain the levels of risk associated with this product. SYMBOL SIGNAL DANGER: WARNING: CAUTION: CAUTION: SERVICE Servicing requires extreme care and knowledge and should be performed only by a qualified service technician. For service we suggest you return the product to your nearest AUTHORIZED SERVICE CENTER for repair.
Bar Tip Guard An attachment that may be provided on the end of the guide bar to prevent the chain at the end of the guide bar from contacting the wood. Bucking The process of cross cutting a felled tree or log into lengths.
PRODUCT SPECIFICATIONS UT10012/UT10512 Bar length ...14 in. Chain pitch ..375 in. Chain gauge ..050 in. Chain type ...Low Profile Drive sprocket ...7-tooth Engine displacement ... 2.0 cu. in. (33cc) Engine power ...1.5 HP min. Idle engine speed ... 2,800 - 3,400 RPM Fuel tank capacity ...20.3 oz.
KNOW YOUR CHAIN SAW See Figure 1. Before attempting to use this product, familiarize yourself with all operating features and safety rules. CHOKE LEVER The choke lever opens and closes the choke valve in the carburetor. Positions available include FULL CHOKE, HALF CHOKE, and RUN.
WARNING: Do not allow familiarity with tools to make you care- less. Remember that a careless fraction of a second is sufficient to inflict serious injury. WARNING: Always wear safety goggles or safety glasses with side shields when operating this tool. Failure to do so could result in objects being thrown into your eyes resulting in possible serious injury.
ADDING BAR AND CHAIN OIL See Figure 3. Use HOMELITE Bar and Chain Oil. It is designed for chains and chain oilers, and is formulated to perform over a wide temperature range with no dilution required. Chain saw should use approximately one tank of oil per tank of fuel.
STARTING THE ENGINE See Figures 6 - 11. Starting the product differs depending on whether the engine is cold or warm. WARNING: Keep your body to the left of the chain line. Never straddle the saw or chain, or lean over past the chain line. n Place the chain saw on level ground and ensure that no objects or obstructions are in the immediate vicinity that could come in contact with the bar and chain.
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n Push choke lever to HALF choke position. n Pull starter grip until engine runs. NOTE: Allow the saw to run in this position 15-30 sec- onds, depending upon the temperature. n Push choke lever all the way in to the RUN position. n Squeeze and release the throttle trigger to return the engine to idle.
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ADJUSTING IDLE SPEED See Figure 14. n If the engine starts, runs, and accelerates, but will not idle, turn the idle speed screw “T” clockwise to increase idle speed. n If the chain turns at idle, turn the idle speed screw “T” counterclockwise to reduce the idle RPM and stop the chain movement.
KICKBACK PRECAUTIONS See Figures 16 - 17. Rotational kickback occurs when the moving chain contacts an object at the Kickback Danger Zone of the guide bar. The result is a lightning-fast reverse reaction, which kicks the guide bar up and back towards the operator. This reaction can cause loss of control, which can result in serious injury.
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PROPER CUTTING STANCE See Figure 19. n Balance your weight with both feet on solid ground. n Keep left arm with elbow locked in a “straight arm” posi- tion to withstand any kickback force. n Keep your body to the left of the chain line. n Keep your thumb on underside of handlebar.
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. n Do not cut down trees having an extreme lean or large trees with rotten limbs, loose bark, or hollow trunks.
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n On large diameter trees, stop the back cut before it is deep enough for the tree to either fall or settle back on the stump. Then insert soft wooden or plastic wedges into the cut so they do not touch the chain. Drive wedges in, little by little, to help jack the tree over.
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BUCKING WITH A WEDGE See Figure 27. If the wood diameter is large enough for you to insert a soft bucking wedge without touching the chain, you should use the wedge to hold the cut open to prevent pinching. NOTE: When bucking or felling with a wedge, you may need to remove the SAFE-T-TIP anti-kickback device to allow the bar to be drawn through the cut.
UNDERBUCKING See Figure 30. Begin on the under side of the log with the top of the saw against the log; exert light pressure upward. During under- bucking, the saw will tend to push back at you. Be prepared for this reaction and hold the saw firmly to maintain control.
WARNING: When servicing, use only identical Homelite replacement parts. Use of any other parts may create a hazard or cause product damage. WARNING: Always wear safety goggles or safety glasses with side shields during power tool operation or when blowing dust.
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n Wear gloves when handling the chain and bar. These components are sharp and may contain burrs. n Remove the bar mounting nuts using the scrench pro- vided. n Remove the clutch cover. n Remove the bar and chain from the mounting surface. n Remove the old chain from the bar.
n Position the chain so there is a loop at the back of the bar. n Hold the chain in position on the bar and place the loop around the sprocket. n Fit the bar flush against the mounting surface so that the bar studs are in the long slot of the bar.
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SHARPENING THE CUTTERS See Figures 49 - 52. Be careful to file all cutters to the specified angles and to the same length, as fast cutting can only be obtained when all cutters are uniform. WARNING: The saw chain is very sharp. Always wear protective gloves when performing maintenance to the chain to prevent serious personal injury.
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TOP PLATE FILING ANGLE See Figure 53. n CORRECT 30° – file holders are marked with guide marks to align file properly to produce correct top plate angle. n LESS THAN 30° – for cross cutting. n MORE THAN 30° – feathered edge dulls quickly. SIDE PLATE ANGLE See Figure 54.
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MAINTAINING THE GUIDE BAR See Figure 58. CAUTION: Make sure the chain has stopped before you do any work on the saw. Every week of use, reverse the guide bar on the saw to distribute the wear for maximum bar life. The bar should be cleaned every day of use and checked for wear and damage.
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CLEANING THE AIR FILTER See Figures 61 - 63. n For access to the air filter and carburetor area, loosen the three screws holding the cylinder cover. n Activate chain brake. n Lift the front of the cylinder cover past chain brake lever.
ADJUSTING THE CARBURETOR See Figures 64 - 66. Before adjusting the carburetor: n Use a brush or compressed air to clean the starter cover vents. n Clean the air filter. Refer to Cleaning the Air Filter in the Maintenance section of this manual. n Allow the engine to warm up prior to adjustment of engine idle speed.
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CLEANING THE ENGINE See Figures 67 - 68. Clean the cylinder fins and flywheel fins with compressed air or a brush periodically. Dangerous overheating of the engine may occur due to impurities on the cylinder. WARNING Never run the saw without all the parts, including the drivecase cover and starter housing, securely in place.
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INSPECTING/CLEANING THE SPARK ARRESTOR SCREEN See Figure 71. The muffler is equipped with a spark arrestor screen. A faulty spark arrestor screen can create a fire hazard. Through normal use the screen can become dirty and should be inspected weekly and cleaned as required. Always keep the muffler and spark arrestor on the saw in good condition.
BAR AND CHAIN COMBINATIONS Length of Bar 14 in. 16 in. Problem Possible Cause Engine will not start. No spark. [Make sure ignition switch is in the RUN ( l ) position.] Engine is flooded. Engine starts but will Carburetor requires “L” not accelerate prop- (Low Jet) adjustment.
Contact an authorized service center for drive sprocket replace- ment. CALL US FIRST For any questions about operating or maintaining your product, call the Homelite Your product has been fully tested prior to shipment to ensure your complete satisfaction. Solution Help Line! ®...
LIMITED WARRANTY STATEMENT Homelite Consumer Products, Inc. warrants to the original retail purchaser that this HOMELITE product is free from defect in material and workmanship and agrees to repair or replace, at Homelite Consumer Products, Inc.’s discretion, any defective product free of charge within these time periods from the date of purchase.
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The nonroad engine must be free from defects in materials and workmanship which cause it to fail to conform with U.S. EPA standards for the first two years of engine use from the date of sale to the ultimate purchaser. Homelite Consumer Products, Inc.
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EMISSIONS MAINTENANCE SCHEDULE AND WARRANTED PARTS LIST Emissions Parts Inspect Before Each Use AIR FILTER ASSY includes: Filter ... X ... X SPARK SCREEN ...X CARBURETOR ASSY includes: Heat Dam Gaskets FUEL TANK ASSY includes: Fuel Lines ... X Fuel Cap... X Fuel Filter IGNITION ASSY includes:...
CALIFORNIA PROPOSITION 65 SERVICE For parts or service, contact your nearest Homelite authorized service dealer. Be sure to provide all relevant information when you call or visit. For the location of the authorized service dealer nearest you, please call 1-800-242-4672 or visit us online at www.homelite.com.