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OPERATOR'S MANUAL
18 in. 46cc CHAIN SAW
UT10552
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.
WARNING:
To reduce the risk of injury, the user must read and understand the operator's manual before using
this product.
Thank you for buying a Homelite product.
SAVE THIS MANUAL FOR FUTURE REFERENCE
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Table of Contents
Troubleshooting
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Summary of Contents for Homelite UT10552
- Page 1 18 in. 46cc CHAIN SAW UT10552 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. WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before using...
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Page 2: Table Of Contents
TAbLE OF CONTENTS Introduction ... 2 General Safety Rules ... 3-4 Specific Safety Rules ... 4 Symbols ... 5-6 Glossary of Terms ... 7 Features ... 8-9 Assembly ... 9 Operation ... 10-20 ... -
Page 3: General Safety Rules
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 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. -
Page 4: Specific Safety Rules
do not adapt the powerhead to a bow guide or use it to power any attachments or devices not listed for the saw. 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. -
Page 5: Symbols
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... -
Page 6: Symbols
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. -
Page 7: Glossary Of Terms
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. -
Page 8: Features
PROdUCT SPECIFICATIONS Bar length ... 18 in. Chain pitch ..325 in. Chain gauge ..050 in. Chain type ...Low Profile Full Skip Tooth Chain drive links ... 72 Drive sprocket ... 7-tooth Engine displacement ...2.8 cu. in. (46cc) Engine power ... 2.2 HP min. Idle engine speed ...2,800 - 3,400 RPM Fuel tank capacity ... -
Page 9: Assembly
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. -
Page 10: Operation
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. - Page 11 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.
- Page 12 STARTING THE ENGINE See Figures - 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. 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.
- Page 13 Push choke lever to HALF choke position. Pull starter grip until engine runs. NOTE: Allow the saw to run in this position 15-30 sec- onds, depending upon the temperature. Push choke lever all the way in to the RUN position. Squeeze and release the throttle trigger to return the engine to idle after a total run time of at least 30 sec- onds.
- Page 14 AdJUSTING IdLE SPEEd See Figure 1. If the engine starts, runs, and accelerates, but will not idle, turn the idle speed screw “T” clockwise to increase idle speed. If the chain turns at idle, turn the idle speed screw “T” counterclockwise to reduce the idle RPM and stop the chain movement.
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Page 15: Preparing For Cutting
KICKbACK PRECAUTIONS See Figures 1 - 1. 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. - Page 16 PROPER CUTTING STANCE See Figure 1. Balance your weight with both feet on solid ground. Keep left arm with elbow locked in a “straight arm” posi- tion to withstand any kickback force. Keep your body to the left of the chain line. Keep your thumb on underside of handlebar.
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Page 17: Felling Trees
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. Do not cut down trees having an extreme lean or large trees with rotten limbs, loose bark, or hollow trunks. - Page 18 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.
- Page 19 bUCKING WITH A WEdGE See Figure . 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.
- Page 20 UNdERbUCKING See Figure 0. 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.
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Page 21: Replacing Guide Bar And Chain
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. - Page 22 Remove the clutch cover. Remove the bar and chain from the mounting surface. Remove the old chain from the bar. Lay out the new saw chain in a loop and straighten any kinks. The cutters should face in the direction of chain rotation.
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Page 23: Adjusting The Chain Tension
Fit the bar flush against the mounting surface so that the bar studs are in the long slot of the bar. NOTE: When placing the bar on the bar studs, ensure that the adjusting pin is in the chain tension pin hole. ... - Page 24 ≈ 050 in. (1.25 mm) Page 24...
- Page 25 SHARPENING THE CUTTERS See Figures - . 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.
- Page 26 TOP PLATE FILING ANGLE See Figure . CORRECT 30° – file holders are marked with guide marks to align file properly to produce correct top plate angle. LESS THAN 30° – for cross cutting. MORE THAN 30° – feathered edge dulls quickly. SIdE PLATE ANGLE See Figure .
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Page 27: Maintenance
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. - Page 28 CLEANING THE AIR FILTER See Figures 1 - . For access to the air filter and carburetor area, loosen the three screws holding the cylinder cover. Activate chain brake. Lift the front of the cylinder cover past chain brake lever.
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Page 29: Adjusting The Carburetor
AdJUSTING THE CARbURETOR See Figures - . before adjusting the carburetor: Use a brush or compressed air to clean the starter cover vents. Clean the air filter. Refer to Cleaning the Air Filter in the Maintenance section of this manual. Allow the engine to warm up prior to adjustment of engine idle speed. - Page 30 CLEANING THE ENGINE See Figures - . 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.
- Page 31 INSPECTING/CLEANING THE SPARK ARRESTOR SCREEN See Figure 1. 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.
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Page 32: Bar And Chain Combinations
BAR AND CHAIN COMBINATIONS Chain specifications: .325 in. pitch, .05 in. chain gauge, 72 drive links Length of Bar 18 in. Problem Possible Cause Engine will not start. No spark. [Make sure ignition switch is in the RUN ( l ) position.] Engine is flooded. -
Page 33: Troubleshooting
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. Page ... -
Page 34: Warranty
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. - Page 35 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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Page 36: Warranty
EMISSIONS MAINTENANCE SCHEdULE ANd WARRANTEd PARTS LIST Emissions Parts Inspect before Each Use AIR FILTER ASSy includes: Filter ... X ...X SPARK ARRESTOR ...X CARbURETOR ASSy includes: Heat Dam Gaskets FUEL TANK ASSy includes: Fuel Lines ... X Fuel Cap ... X Fuel Filter IGNITION ASSy includes:... - Page 37 NOTES Page ...
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Page 38: Parts Ordering / Service
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.