Homelite UT10927A manual

OPERA T OR'S MANUAL 16 in. (406 mm) 38cc Chain Saw Model No. UT10927A Y our new chain saw has been engineered and manufactured to Homelite’s high standard for dependability , ease of operation, and operator safety . Properly cared for , it will give you years of rugged, trouble-free performance. W ARNING: To reduce the risk of injury , the u[...]

Page 2 ■ Introduction ...................................................................................................................................................................... 2 ■ General Safety Instructions .................................................................................................... ........................[...]

Page 3 W ARNING: The warnings, labels, and instructions found in this section of the operator's manual are for your safety. Failure to follow all instructions may result in serious personal injury. Safe operation of this tool requires that you read and understand this operator's manual and all labels affixed to the tool. Safety is a combi[...]

Page 4 W ARNING: The warnings, labels, and instructions found in this section of the operator's manual are for your safety. Failure to follow all instructions may result in serious personal injury. GENERAL PRECAUTIONS ■ DO NOT CUT VINES and/or small underbrush (less than 3 in./76 mm in diameter). ■ MUFFLER SURFACES ARE VERY HOT during and [...]

Page 5 PULL PUSH Fig. 1 PUSH AND PULL The reaction force is always opposite to the direction the chain is moving. Thus, the operator must be ready to control the PULL when cutting on the bottom edge of the bar and the PUSH when cutting along the top edge. MAINTENANCE PRECAUTIONS Never operate a chain saw that is damaged, improperly adjusted, or is [...]

Page 6 Important: Some of the following symbols may be used on your 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 EXPLANATION Indicates danger, warning or caution. It means attention!!! Your safety is involved. Your manual contains special mes[...]

Page 7 The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and the explanations with them, deserve your careful attention and understanding. The safety warnings do not by themselves eliminate any danger. The instructions or warnings they give are not substitutes for proper accident prevention measures[...]

Page 8 STOP Fig. 2 FRONT HAND GUARD/CHAIN BRAKE FRONT HANDLE CYLINDER COVER TRIGGER RELEASE REAR HANDLE THROTTLE TRIGGER ON/OFF SWITCH FUEL MIX CAP CHAIN OIL CAP ST ARTER/FAN HOUSING ST ARTER GRIP SAFE-T -TIP ® PRIMER BULB CHOKE LEVER FEA TURES[...]

Page 9 W ARNING: The warnings and instructions in this section of the operator's manual are for your safety and to prevent serious personal injury. UNDERSTANDING YOUR CHAIN SAW SAFETY DEVICES SAFE-T-TIP ® ANTI-KICKBACK NOSE GUARD The SAFE-T -TIP ® prevents kickback because it covers the tip of the bar where rotational kickback is generated. [...]

Page 10 W ARNING: Always shut off engine before fueling. Never add fuel to a machine with a running or hot engine. Move at least 30 ft. (9 m) from refueling site before starting the engine. DO NOT SMOKE! Failure to heed this warning can result in possible personal injury. FUEL AND REFUELING HANDLING THE FUEL SAFELY W ARNING: Check for fuel leaks, i[...]

Page 11 S T O P ADDING OIL 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. Note: Do not use dirty, used or otherwise contaminated oils. Damage may occur to the oil pum[...]

Page 12 S T O P Fig. 14 CHOKE LEVER Fig. 15 THROTTLE TRIGGER TRIGGER RELEASE Fig. 16 Fig. 18 RUN POSITION ST ARTER GRIP STARTING A COLD ENGINE: 3. Move the chain brake to the BRAKE position. Note: Set the chain brake by pushing the chain brake lever/hand guard forward (towards the bar), to the brake position. Refer to “Operation – Operating Cha[...]

Page 13 7. Pull ST ARTER until engine attempts to start. Slowly pull the starter grip out for a short distance until you feel the starter engage, then briskly pull straight up. Do not pull to the end of the rope, this can damage the starter . Hold onto the grip during rewinding (see figure 16). Pull the starter rope until the first firing of the en[...]

Page 14 PREPARING FOR CUTTING PROPER GRIP ON HANDLES Refer to “Specific Safety Rules – Safety Apparel” earlier in this manual for appropriate safety equipment. ■ Wear non-slip gloves for maximum grip and protection. ■ Hold the saw firmly with both hands. Always keep your LEFT HAND on the front handle and your RIGHT HAND on the rear handle[...]

Page 15 S T O P BASIC OPERATING/CUTTING PROCEDURES Practice cutting a few small logs using the following technique to get the “feel” of using your saw before you begin a major sawing operation. 1. T ake the proper stance in front of the wood with the saw idling. 2. Accelerate the engine to full throttle just before entering the cut by squeezing[...]

Page 16 STOP W ARNING: Weather conditions and altitude may affect carbure- tion. Do not allow bystanders close to the chain saw while adjusting the carburetor. ADJUSTING IDLE SPEED ■ 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, [...]

Page 17 FELLING TREES HAZARDOUS CONDITIONS W ARNING: Do not fell trees during periods of high wind or heavy precipitation. W ait 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 ro[...]

Page 18 PROPER PROCEDURE FOR TREE FELLING 1. Pick your escape route (or routes in case the in- tended route is blocked). Clear the immediate area around the tree and make sure there are no obstruc- tions in your planned path of retreat. Clear the path of safe retreat approximately 135 ° from the planned line of fall. 2. Consider the force and dire[...]

Page 19 REMOVING BUTTRESS ROOTS A buttress root is a large root extending from the trunk of the tree above the ground. Remove large buttress roots prior to felling. Make the horizontal cut into the buttress first, followed by the vertical cut. Remove the resulting loose section from the work area. Follow the correct tree felling procedure after you[...]

Page 20 BUCKING LOGS UNDER STRESS Make the first bucking cut 1/3 of the way through the log and finish with a 2/3 cut on the opposite side. As you cut the log, it will tend to bend. The saw can become pinched or hung in the log if you make the first cut deeper than 1/3 of the diameter of the log. Give special attention to logs under stress to preve[...]

Page 21 LIMBING AND PRUNING ■ Work slowly, keeping both hands on the saw with a firm grip. Maintain secure footing and balance. ■ Keep the tree between you and the chain while limbing. Cut from the side of the tree opposite the branch you are cutting. ■ Do not cut from a ladder, this is extremely dangerous. Leave this operation for profession[...]

Page 22 ASSEMBLING THE BAR AND CHAIN DANGER: Never start the engine before installing the guide bar, chain, drivecase cover, and clutch drum. Without all these parts in place, the clutch can fly off or explode exposing the user to possible serious injury. W ARNING: To avoid serious personal injury, read and under- stand all the safety instructions [...]

Page 23 6. Lay out the saw chain in a loop and straighten any kinks. The cutters should face in the direction of chain rotation. If they face backwards, turn the loop over . See Figure 45 . 7. Place the chain drive links into the bar groove as shown in figure 46. 8. Position the chain so there is a loop at the back of the bar. 9. Hold the chain in [...]

Page 24 11. Replace the outer guide bar plate ensuring that the bar pin groove is at the bottom with the upper and lower edges angled away from the guide bar. 12. Replace the clutch cover and bar mounting nuts. 13. Tighten the bar mounting nuts finger tight only. The bar must be free to move for tension adjustment. 14. Remove all slack from the cha[...]

Page 25 ADJUSTING THE CHAIN TENSION W ARNING: Never touch or adjust the chain while the motor is running. The saw chain is very sharp. Always wear protective gloves when performing maintenance on the chain. 1. Stop the engine before setting the chain tension. 2. Make sure the guide bar nuts are loosened to finger tight, turn the chain tensioner clo[...]

Page 26 Fig. 55 Fig. 56 RAKER CLEARANCE INSPECT DRIVE SPROCKET CUTTING CORNER SIDE PLA TE DEPTH GAUGE TOE GULLET HEEL RIVET HOLE TOP PLA TE SHARPENING THE CUTTERS 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. 1. Wear gloves for protection. 2. Tension[...]

Page 27 Fig. 60 Fig. 61 Fig. 59 CHECK FOR WEAR OR DAMAGE LEFT HAND CUTTERS RIGHT HAND CUTTERS Fig. 62 CAUTION: A dull or improperly sharpened chain can cause excessive engine speed during cutting which may result in severe engine damage. W ARNING: Improper chain sharpening increases the potential of kickback. W ARNING: Failure to replace or repair [...]

Page 28 TOP PLATE FILING ANGLE ■ 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 ■ CORRECT 80 o – Produced automatically if you use the correct diameter file in t[...]

Page 29 RESTORE ORIGINAL SHAPE BY ROUNDING THE FRONT Fig. 68 LUBRICA TING HOLE Fig. 67 MAINTAINING THE GUIDE BAR 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. See Figure 68 . The bar should be cleaned every day of use and c[...]

Page 30 S T O P S T O P MOUNTING THE SAFE-T-TIP® NOSE GUARD See Figure 70. 1. Mount the SAFE-T-TIP ® on the bar nose. See Fig- ure 70. 2. Fit the locking rivet or tab in the recessed hole in the guide bar. 3. Tighten the screw with your finger. 4. From the finger tight position, tighten the screw an additional 3/4 of a turn using a wrench. CLEANI[...]

Page 31 ST O P S T O P CLEANING THE ENGINE 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. W ARNING Never run the saw without all the parts, including the drivecase cover and starter housing, securely in place. Because parts can f[...]

Page 32 CLEANING THE SPARK ARRESTING MUFFLER 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 your saw in good condition. W ARNING Muffler [...]

Page 33 Length of Bar Guide Bar Part Number Chain Part Number 16 in. UP08676 UP08677 18 in. UP08679 UP08680 PROBLEM POSSIBLE CAUSE SOLUTION Engine will not start. (Make sure ignition switch is in start position “I”.) Engine starts but will not accelerate properly. Engine starts but will not run properly at high speed . Engine does not reach ful[...]

Page 34 PROBLEM POSSIBLE CAUSE SOLUTION Engine starts, runs, and accelerates but will not idle. Bar and chain running hot and smoking. Engine starts and runs, but chain is not rotating. Carburetor requires adjustment. 1. Chain oil tank empty. 2. Check chain tension for overtight condition. 3. Check for oiler function. 1. Chain brake engaged. 2. Cha[...]

Page 35 W ARRANTY LIMITED WARRANTY STATEMENT Homelite Consumer Product, 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 [...]

HOMELITE CONSUMER PRODUCTS, INC. 1428 Pearman Dairy Road, Anderson, SC 29625 Post Office Box 1207, Anderson, SC 29622 Phone 1-800-chainsa (1-800-242-4672) www.homelite.com OPERA T OR'S MANUAL 16 in. (406 mm) 38cc Chain Saw Model No. UT10927A For product information, technical help, dealer locations or parts ordering information visit our websi[...]