Homelite UT10927A, Operator'S Manual

Page 1: ...elite 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 Thank you for buying a Homelite chain saw SAVE THIS MANUAL FOR FUTURE REFERENCE ...

Page 2: ...l enjoy years of safe reliable service IMPORTANT Servicing requires extreme care and knowledge and should be performed only by a qualified service technician When servicing use only identical Homelite replacement parts For safe operation read and understand all instructions before using the chain saw Follow all safety instructions Failure to follow all safety instructions listed below may result i...

Page 3: ...ollow the manufacturer s sharpening and maintenance instructions for the saw chain 7 Only use replacement bars and chains specified by the manufacturer or the equivalent 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 DO NOT OPERATE A CHAIN ...

Page 4: ...rs where there are no sparks or flames Select bare ground stop the engine and allow it to cool before refueling Loosen the fuel cap slowly to release pressure and to keep fuel from escaping around the cap Tighten the fuel cap securely after refueling Wipe spilled fuel from the unit Move 30 feet 9 m away from refueling site before starting engine Never attempt to burn off spilled fuel under any cir...

Page 5: ...de WARNING All chain saw service other than items in the operator s manual maintenance instructions should be performed by competent chain saw service personnel If improper tools are used to remove the flywheel or clutch or if an improper tool is used to hold the flywheel in order to remove the clutch structural damage to the flywheel could occur which could subsequently cause the flywheel to burs...

Page 6: ... damage Wear eye hearing and head protection when operating this equipment The SAFE T TIP nose guard on the guide bar helps prevent kickback No smoking sparks or open flame Diagonal line across a symbol means this is prohibited or should be avoided Hold and operate the saw properly with both hands Do not operate the saw using only one hand Engines produce carbon monoxide which is an odorless deadl...

Page 7: ...uld result in serious injury CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury NOTE Advises you of information or instructions vital to the operation or maintenance of the equipment SAVE THESE INSTRUCTIONS Weight No bar chain fuel or oil 9 7 lbs 4 4 kg Fuel tank volume 19 4 oz 575 ml Chain oil tank volume 11 8 oz 350 ml Bar lengths 12 i...

Page 8: ...FRONT HAND GUARD CHAIN BRAKE FRONT HANDLE CYLINDER COVER TRIGGER RELEASE REAR HANDLE THROTTLE TRIGGER ON OFF SWITCH FUEL MIX CAP CHAIN OIL CAP STARTER FAN HOUSING STARTER GRIP SAFE T TIP PRIMER BULB CHOKE LEVER FEATURES ...

Page 9: ...Homelite bars listed for your saw in this operator s manual The proper size SAFE T TIP nose guard comes installed on the bar Use only guide bars that have a provision for mounting the SAFE T TIP CHAIN BRAKE Chain brakes are designed to quickly stop the chain from rotating When the chain brake lever hand guard is pushed toward the bar the chain should stop immediately A chain brake does not prevent...

Page 10: ... gasoline or oil comes in contact with the eyes wash them immediately with clean water If irritation is still present see a doctor immediately Clean up spilled fuel immediately MIXING THE FUEL This product is powered by a 2 cycle engine and requires pre mixing gasoline and 2 cycle oil Pre mix unleaded gasoline and 2 cycle engine oil in a clean container approved for gasoline This engine is certifi...

Page 11: ...e tank See Figure 9 2 Fill the oil tank every time you fuel the engine STARTING THE ENGINE WARNING Keep your body to the left of the chain line Never straddle the saw or chain or lean over past the chain line 1 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 2 Hold the front handle firmly...

Page 12: ...in brake lever hand guard forward towards the bar to the brake position Refer to Operation Operating Chain Brake for additional information 4 Set the ignition switch to the RUN I position 5 Fully press and release the PRIMER BULB 7 times 6 Pull CHOKE lever all the way OUT to full position The partial throttle position is automaticaaly set when the choke lever is set at full choke OPERATION Fig 17 ...

Page 13: ... throttle trigger while the chain brake is in the brake position Now you are ready to pick up the saw Use the proper grip for both handles refer to Operation for additional information STARTING A WARM ENGINE Follow the instructions for starting a cold engine steps 1 9 but do not attempt to start in the full choke position skip step 5 Push and release primer bulb 7 times Pull the choke out and push...

Page 14: ...e thumb is wrapped under the handlebar This grip is least likely to be broken by a kickback or other sudden reaction of the saw Any grip in which the thumb and fingers are on the same side of the handle is dangerous because a slight kick of the saw can cause loss of control WARNING DO NOT operate the throttle trigger with your left hand and hold the front handle with your right hand Never allow an...

Page 15: ... saw Keep everyone helpers bystanders children and animals a SAFE DISTANCE from the cutting area During felling operations the safe distance should be a least twice the height of the largest trees in the felling area During bucking operations keep a minimum distance of 15 feet 4 5m between workers ADJUSTING THE CARBURETOR Before adjusting the carburetor clean the air filter and the starter cover v...

Page 16: ...CHAIN BRAKE Refer to Safety earlier in this manual for additional information Check the operating condition of the chain brake prior to each use 1 Start the engine and grasp the front and rear handles securely with both hands 2 Pull the throttle trigger to bring the chain saw up to full speed Using the back of your left hand engage the chain brake by pushing the chain brake lever hand guard toward...

Page 17: ...shed or dragged down with heavy equipment then cut them up Do not cut trees near electrical wires or buildings Check the tree for damaged or dead branches that could fall and hit you during felling Periodically glance at the top of the tree during the backcut to assure the tree is going to fall in the desired direction If the tree starts to fall in the wrong direction or if the saw gets caught or ...

Page 18: ...t through to the notch Always leave a band of wood between the notch and back cut approxi mately 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 shoot back of the tree off the stump See Figure 32 On large diameter trees stop the back cut before it is deep enough for the tree to either fall or set...

Page 19: ...de bar nose and chain during cutting this can cause kickback To avoid the danger keep the SAFE T TIP anti kickback device attached while cutting Refer to Safety Kickback earlier in this manual During bucking operations stand on the uphill side so that the cut off section of the log cannot roll over you Sometimes it is impossible to avoid pinching with just standard cutting techniques or difficult ...

Page 20: ...Figure 38 Begin on the top side of the log with the bottom of the saw against the log exert light pressure downward Note that the saw will tend to pull away from you UNDERBUCKING See Figure 38 Begin on the under side of the log with the top of the saw against the log exert light pressure upward During underbucking the saw will tend to push back at you Be prepared for this reaction and hold the saw...

Page 21: ...rom the main member See Figure 35 1 Underbuck the branch 1 3 through for your first cut 2 Overbuck the branch to drop it 3 Finish by cutting smoothly and neatly against the main member so the bark will grow back to seal the wound WARNING If the limbs to be pruned are above chest height hire a professional to perform the pruning CUTTING SPRINGPOLES See Figure 36 A springpole is any log branch roote...

Page 22: ... Always place the switch in the stop O position before you work on the saw 2 Make sure the chain brake is not set by pulling the chain brake lever hand guard towards the front handle to the RUN position 3 Wear gloves when handling the chain and bar These components are sharp and may contain burrs 4 Remove the bar mounting nuts using a combination wrench or 5 8 in wrench 5 Remove the clutch cover a...

Page 23: ... loop at the back of the bar 9 Hold the chain in position on the bar and place the loop around the sprocket 10 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 CUTTERS CHAIN ROTATION CHAIN DRIVE LINKS BAR GROOVE CHAIN DRIVE LINKS ADJUSTING PI...

Page 24: ...16 Release the tip of the guide bar and turn the chain tensioning screw 1 2 turn clockwise Repeat this process until sag does not exist CHAIN TENSIONING SCREW Fig 48 17 Hold the tip of the guide bar up and tighten the bar mounting nuts securely The chain is correctly tensioned when there is no sag on the underside of the guide bar the chain is snug but it can be turned by hand without binding Ensu...

Page 25: ... groove To help determine the correct warm chain tension use the tip of the combina tion wrench can be used as a guide See Figures 52 53 and 54 Note New chain tends to stretch check the chain tension frequently and tension as required CAUTION A chain tensioned while warm may be too tight upon cooling Check the cold tension before next use 050 in 1 25 mm FLATS ON DRIVE LINKS 050 1 25 mm Fig 54 Fig ...

Page 26: ... Stroke towards the front corner of the tooth 6 Lift the file away from the steel on each return stroke 7 Put a few firm strokes on every tooth File all left hand cutters in one direction Then move to the other side and file the right hand cutters in the opposite direction 8 Remove filings from the file with a wire brush Fig 58 RAKER DEPTH GAUGE CLEARANCE Fig 57 Raker depth gauge clearance See Fig...

Page 27: ...ause excessive engine speed during cutting which may result in severe engine damage WARNING Improper chain sharpening increases the potential of kickback WARNING Failure to replace or repair a damaged chain can cause serious injury WARNING The saw chain is very sharp Always wear protective gloves when performing maintenance to the chain MAINTENANCE ...

Page 28: ...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 INCORRECT MORE THAN 30 TOP PLATE FILING ANGLE LESS THAN 30 Fig 63 30 025 in 0 6 mm DEPTH GAUGE CORRECT INCORRECT BACKWARD SLOPE SIDE PLATE FILING ANGLE HOOK Fig 64 80 CORRECT Fig 65 Use a flat file and a depth gauge jointer to lower all ...

Page 29: ...E GUARD CAUTION Make sure the chain has stopped before you do any work on the saw WARNING Although the guide bar comes with a SAFE T TIP anti kickback device already installed you need to check the tightness of the mounting screw before each use Tighten the mounting screw of the nose guard as in structed below These are specially hardened screws If you cannot install the screw tightly replace both...

Page 30: ... and twist as shown in the illustration 8 Lift the air filter off the air filter base Choose one of the following cleaning options 9 To lightly clean tap the filter against a smooth flat surface to dislodge most saw dust and dirt particles 10 For a more thorough cleaning clean in warm soapy water rinse and let dry completely Note An alternate method is to clean the filter with compressed air alway...

Page 31: ...d Fig 74 CLEAN CYLINDER FINS CLEAN FLYWHEEL FINS Fig 75 Fig 76 FUEL FILTER Fig 77 REPLACING THE SPARK PLUG This engine uses a Champion RCJ 4 with 025 in 0 63 mm electrode gap Use an exact replacement and replace every six months or more frequently if necessary 1 Loosen the spark plug by turning it counterclockwise with a wrench 2 Remove the spark plug 3 Hand thread the new spark plug turning it cl...

Page 32: ...4 in 60mm or worn halfway through Always keep the chain brake mechanism clean and lightly lubricate the linkage Always test the chain brake performance after servicing or cleaning Refer to Operation Operating Chain Brake earlier in this manual for additional information Check and if damaged replace the chain catcher STORING THE CHAIN SAW 1 MONTH OR LONGER 1 Drain all fuel from tank into a containe...

Page 33: ...plug tip If there is no spark repeat test with a new spark plug 2 With the ignition switch off remove spark plug Move choke lever to run position pushed in com pletely 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 I position Push and fully release primer bulb 7 times Pull starter three times with choke lever a...

Page 34: ...econds Stop saw and check for oil dripping from SAFE T TIP and guide bar If oil is present the chain may be dull or bar may be damaged If no oil is on the SAFE T TIP contact a Homelite Service Center 1 Release chain brake refer to Operation Operat ing Chain Brake earlier in this manual 2 Tension chain per instructions in Maintenance Adjusting the Chain Tension earlier in this manual 3 Refer to Mai...

Page 35: ...ured ALL IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE STATED WARRANTY PERIOD ACCORDINGLY ANY SUCH IMPLIED WARRANTIES INCLUDING MERCHANTABIL ITY FITNESS FOR A PARTICULAR PURPOSE OR OTHER WISE ARE DISCLAIMED IN THEIR ENTIRETY AFTER THE EXPIRATION OF THE APPROPRIATE TWO YEAR ONE YEAR OR NINETY DAY WARRANTY PERIOD HOMELITE S OBLIGA TION UNDER THIS WARRANTY IS STRICTLY AND EXCLU SIVELY LIMITED TO ...

Page 36: ...NUAL 16 in 406 mm 38cc Chain Saw Model No UT10927A For product information technical help dealer locations or parts ordering information visit our website at www homelite com 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 PSO6311 983000 124 3 03 ...