OPERATOR'S MANUAL 16 in. (406 mm) 33cc Chain Saw UT10530, UT10530A, UT10947D, UT10947E Your 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. 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 chain saw.
TABLE OF CONTENTS Introduction ..................................................................................................................................................................... 2 General Safety Rules .................................................................................................................................................. 3-4 Specific Safety Rules .................................................................................................................
GENERAL SAFETY RULES DO NOT OPERATE A CHAIN SAW WITH ONE HAND. Serious injury to the operator, helpers, bystanders, or any combination of these persons may result from one-handed operation. A chain saw is intended for two-handed use. WARNING: 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 SAFETY RULES ALL CHAIN SAW SERVICE, other than the items listed in the instruction manual and all maintenance, should be performed by competent chain saw service personnel. (For example, if improper tools are used to remove the flywheel or if an improper tool is used to hold the flywheel in order to remove the clutch, structural damage to the flywheel could occur and subsequently could cause the flywheel to burst.
SPECIFIC SAFETY RULES PUSH AND PULL MAINTENANCE PRECAUTIONS 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. Never operate a chain saw that is damaged, improperly adjusted, or is not completely and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released.
SYMBOLS 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 Safety Alert Symbol Indicates danger, warning or caution. It means attention!!! Your safety is involved.
SYMBOLS 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. Symbol Meaning DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
Page 8
Page 9
Page 10
Page 11
Page 12
OPERATION 7. While squeezing both the trigger release and throttle trigger, push in the throttle lock button. Release the throttle trigger. This latches the trigger for starting. 8. When the temperature is above 50° F, pull the STARTER GRIP until the engine attempts to start, but no more than 3 times. When the temperature is below 50° F, pull the STARTER GRIP until the engine attempts to start, but no more than 5 times. 9. Push CHOKE lever to half choke position. 10. Pull STARTER GRIP until engine runs.
Page 14
OPERATION 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. Take 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 the throttle trigger. 3. Begin cutting with the saw against the log. 4. Keep the engine at full throttle the entire time you are cutting. 5.
OPERATION ADJUSTING IDLE SPEED FELLING TREES See Figure 26. 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. If the saw chain still moves at idle speed, contact a Homelite Service Center for adjustment and discontinue use until the repair is made.
OPERATION PROPER PROCEDURE FOR TREE FELLING See Figures 27 through 30. 1. Pick your escape route (or routes in case the intended route is blocked). Clear the immediate area around the tree and make sure there are no obstructions 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 direction of the wind, the lean and balance of the tree, and the location of large limbs.
OPERATION Note: Never cut through to the notch. Always leave a band of wood between the notch and back cut (approximately 2 inches (5 cm) or 1/10 the diameter of the tree). This is called "hinge" or "hingewood". It controls the fall of the tree and prevents slipping or twisting or shootback of the tree off the stump. 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.
OPERATION REMOVING BUTTRESS ROOTS See Figure 31. 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 have removed the large buttress roots. Refer to “Operation – Proper Procedure for Tree Felling” earlier in this manual.
Page 20
OPERATION LIMBING AND PRUNING See Figure 36. 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. Do not cut from a ladder, this is extremely dangerous. Leave this operation for professionals. Do not cut above chest height as a saw held higher is difficult to control against kickback. LOAD SECOND CUT FIRST CUT 1/3 DIAMETER WARNING: FINISHING CUT Never climb into a tree to limb or prune.
MAINTENANCE ASSEMBLING THE BAR AND CHAIN See Figures 38 through 48. 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. COMBINATION WRENCH WARNING: To avoid serious personal injury, read and understand all the safety instructions in this section. BAR MOUNTING NUTS Fig. 39 ” position 1.
Page 23
MAINTENANCE 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 chain by turning the chain tensioning screw clockwise until the chain seats snugly against the bar with the drive links in the bar groove. 15.
MAINTENANCE ADJUSTING THE CHAIN TENSION See Figures 49 through 51. WARNING: 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. ≈ .050 in. (1.25 mm) 1. Stop the engine before setting the chain tension. 2. Make sure the bar mounting nuts are loosened to finger tight, turn the chain tensioner clockwise to tension the chain.
Page 26
Page 27
MAINTENANCE TOP PLATE FILING ANGLE MAINTAINING DEPTH GAUGE CLEARANCE See Figure 60. 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. See Figure 62, 63 and 64. Maintain the depth gauge at a clearance of .025 in. (0.6 mm). Use a depth gauge tool for checking the depth gauge clearances. Every time the chain is filed, check the depth gauge clearance.
MAINTENANCE MAINTAINING THE SAFE-T-TIP NOSE GUARD MAINTAINING THE GUIDE BAR See Figure 65. See Figures 66 and 67. CAUTION: CAUTION: Make sure the chain has stopped before you do any work on the saw. 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 30
Page 31
Page 32
BAR AND CHAIN COMBINATIONS Length of Bar Guide Bar Part Number Chain Part Number 14 in. PS06331 984296005 16 in. PS06338 PS06285 TROUBLESHOOTING PROBLEM Engine will not start. (Make sure Ignition Switch is in start position “I”.) POSSIBLE CAUSE SOLUTION 1. Check spark. Remove air filter cover. Remove spark plug from cylinder. Reattach the spark plug wire and lay spark plug on top of cylinder with the metal part of plug touching the cylinder.
Note: The carburetor adjustment needle(s) are equipped with plastic cap(s) that prevent counterclockwise rotation from the original factory adjustment. If your product exhibits specific performance problem(s) where the Troubleshooting Section recommends a counterclockwise needle adjustment and you have made no adjustments since the original purchase, take the product to a factory authorized service center for repair.
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.
OPERATOR'S MANUAL 16 in. (406 mm) 33cc Chain Saw UT10530, UT10530A, UT10947D, UT10947E WARNING: The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. CALIFORNIA PROPOSITION 65 For product information, technical help, dealer locations or parts ordering information visit our website at: www.homelite.com. HOMELITE CONSUMER PRODUCTS, INC.