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Homelite UT10918 - User Manual

Homelite UT10918
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SAVE THIS MANUAL FOR FUTURE REFERENCE
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.
Cette scie à chaîne a été conçue et fabriquée conformément aux
strictes normes de fiabilité, simplicité d’emploi et curité d’utilisation
de Homelite. Correctement entretenue, elle vous donnera des
années de fonctionnement robuste et sans problème.
AVERTISSEMENT : Pour réduire les risques de
blessures, l’utilisateur doit lire et veiller à bien comprendre le
manuel d’utilisation avant d’employer ce produit.
Merci d’avoir acheté un produit Homelite.
Su motosierra ha sido diseñada y fabricada de conformidad con
las estrictas normas de Homelite para brindar fiabilidad, facilidad
de uso y seguridad para el operador. Con el debido cuidado, le
brindará muchos años de sólido y eficiente funcionamiento.
ADVERTENCIA: Para reducir el riesgo de lesiones,
el usuario debe leer y comprender el manual del operador antes
de usar este producto.
Le agradecemos la compra de un producto Homelite.
OPERATOR’S MANUAL
MANUEL D’UTILISATION
MANUAL DEL OPERADOR
UT10540, UT10542 14 in. 35cc Chain Saw
Scie à chaîne de 35 cc de 35 cm (14 po)
Motosierra de 35 cm (14 pulg.), 35 cc
UT10560, UT10562 16 in. 38cc Chain Saw
Scie à chaîne de 38 cc de 40 cm (16 po)
Motosierra de 40 cm (16 pulg.), 38 cc
UT10580, UT10582 / UT10918 / 18 in. 42cc Chain Saw
Scie à chaîne de 42 cc de 45 cm (18 po)
Motosierra de 45 cm (18 pulg.), 42 cc
(ALL VERSIONS)
(TOUTES LES VERSIONS)
(TODAS LAS VERSIONES)
CONSERVER CE MANUEL POUR
FUTURE RÉFÉRENCE
GUARDE ESTE MANUAL PARA
FUTURAS CONSULTAS

Questions and Answers

  • D
    Dillon MillerAug 14, 2025
    How to fix Homelite Chainsaw when engine will not start?
    • K
      Kelly FisherAug 14, 2025
      If your Homelite Chainsaw engine will not start, clean or replace the spark plug and reset the spark plug gap. To clear excess fuel, turn the ignition switch OFF, remove the spark plug, move the choke lever to the run position, and pull the starter cord 15 to 20 times. Clean and reinstall the spark plug. Set the ignition switch to run, push and fully release the primer bulb 7 times, and pull the starter three times with the choke lever at run. If it doesn't start, move the choke lever to FULL choke and repeat the starting procedure. If it still fails, repeat the procedure with a new spark plug.
  • J
    Jerry StevensAug 17, 2025
    Homelite UT10918 starts and runs, but chain is not rotating: what to check?
    • J
      Jessica DunnAug 17, 2025
      If your Homelite Chainsaw engine starts and runs, but the chain is not rotating, the chain brake might be engaged, the chain tension might be too tight, the guide bar and chain might be assembled incorrectly, the guide bar and/or chain might be damaged, or the drive sprocket teeth might be damaged. Disengage the chain brake. Adjust the chain tension. Inspect the guide bar and chain for damage. If needed, contact an authorized service center for drive sprocket replacement.
  • T
    turnerjoshuaAug 21, 2025
    Why does my Homelite UT10918 engine not reach full speed and emit smoke?
    • E
      Erin PruittAug 21, 2025
      If your Homelite Chainsaw engine doesn't reach full speed and emits excessive smoke, it could be due to an incorrect lubricant/fuel mixture, a dirty air filter, or the carburetor needing adjustment. Ensure you're using fresh fuel with the correct 2-cycle lubricant mix ratio. Clean the air filter. If the problem persists, the carburetor may require adjustment by an authorized service center.
  • N
    Nancy HillAug 25, 2025
    Why is my Homelite UT10918 bar and chain running hot and smoking?
    • A
      Anthony DaltonAug 25, 2025
      If your Homelite Chainsaw bar and chain are running hot and smoking, it could be due to an empty chain oil tank, chain tension that is too tight, or a malfunctioning oiler. Ensure the oil tank is filled each time you fill the fuel tank. Adjust the chain tension. Run the saw at half throttle for 30 to 45 seconds, then stop it and check for lubricant dripping. If there's no lubricant, contact an authorized service center.
  • H
    Holly BakerAug 27, 2025
    Why Homelite UT10918 engine starts but will not accelerate properly?
    • H
      Heather JordanAug 27, 2025
      If your Homelite Chainsaw engine starts but will not accelerate properly, it is likely that the carburetor requires a “L” (Low Jet) adjustment. Contact an authorized service center for carburetor adjustment.
  • A
    Anne MartinezAug 30, 2025
    What to do if Homelite UT10918 Chainsaw starts, runs, and accelerates but will not idle?
    • B
      Becky DyerAug 31, 2025
      If your Homelite Chainsaw engine starts, runs, and accelerates but will not idle and the chain turns at idle, the carburetor may need adjustment or there might be an air leak in the intake system. Turn the idle speed screw “T” clockwise to increase idle speed or counterclockwise to decrease speed. If the problem persists, contact an authorized service center for a rebuild kit.
  • R
    Ryan MataSep 3, 2025
    What to do if Homelite UT10918 engine starts, then dies?
    • S
      Shelly BrownSep 3, 2025
      If your Homelite Chainsaw engine starts, then dies, it is likely that the carburetor requires a “L” (Low Jet) adjustment. Contact an authorized service center for carburetor adjustment.
  • P
    padillabrandonSep 7, 2025
    Why Homelite UT10918 Chainsaw engine starts but will not run properly at high speed?
    • C
      Cheryl HarrisSep 7, 2025
      If your Homelite Chainsaw engine starts but will not run properly at high speed, it is likely that the carburetor requires a “H” (High Jet) adjustment. Contact an authorized service center for carburetor adjustment.
  • B
    Brandon JohnsonSep 10, 2025
    How to fix Homelite UT10918 Chainsaw chain tensioning dial when it's difficult to turn?
    • M
      Morgan PatelSep 10, 2025
      If the chain tensioning dial on your Homelite Chainsaw is difficult to turn, raise the tip of the guide bar while rotating the tension adjustment dial. Also, press in the clutch cover lock knob and rotate it counterclockwise to slightly loosen the clutch cover before adjusting chain tension.

Summary

General Safety Rules

Understand Instructions and Tool

Emphasizes reading the manual and knowing the tool for safe operation.

Kickback Hazards and Prevention

Explains kickback and how to reduce the risk through proper grip and avoiding tip contact.

General Safety Rules (Continued)

Specific Safety Rules

Specific Safety Rules (Continued)

Pre-operation Checks and Personal Gear

Covers pre-start checks, appropriate clothing, footwear, gloves, and eye/hearing/head protection.

Refueling and Kickback Awareness

Details safe refueling procedures and highlights kickback as a dangerous reaction.

Symbols

Features

Features (Continued)

Key Component Functions

Explains the function of the choke lever, chain brake, guide bar, primer bulb, and throttle trigger.

Assembly

Operation

General Operation Precautions

Warns against familiarity leading to carelessness and the importance of safety gear.

Operation (Continued)

Cold Engine Starting Procedure

Details the steps for starting a cold engine, including choke and primer use.

Kickback Precautions and Grip

Details kickback prevention and emphasizes the importance of a proper two-handed grip.

Felling Trees - Hazardous Conditions

Warns about hazardous conditions like wind, precipitation, and tree integrity during felling.

Bucking Logs Under Stress

Addresses bucking logs with stress, overbucking, and underbucking techniques.

Fuel Mixing Instructions

Details how to mix gasoline and 2-cycle lubricant for the engine, including ratios.

Operating the Chain Brake

Explains how to engage and reset the chain brake and when to seek service.

Warm Engine Starting Procedure

Outlines the procedure for starting a warm engine, differing slightly from cold start.

Adjusting Idle Speed

Guides on adjusting the idle speed screw to set proper idle RPM and stop chain movement.

Proper Cutting Stance and Body Position

Explains the correct stance and body positioning relative to the chain line for safety.

Tree Felling Procedure and Escape Routes

Outlines the proper procedure for felling trees, including notch cuts and safe retreat paths.

Cutting Springpoles

Warns about the dangers of springpoles and how to handle them safely.

Starting the Engine

Introduces the engine starting procedure and provides a critical safety warning.

Operation (Continued)

Idle Speed Warning and Kickback Explanation

Warns against the chain turning at idle and explains the kickback phenomenon.

Operation (Continued)

Felling Back Cut and Hinge Wood

Explains the back cut, hinge wood, and use of wedges in felling large trees.

Maintenance

Lubrication and Parts Replacement

Discusses lubrication requirements and the process for replacing the guide bar and chain.

Replacing Guide Bar and Chain Safety

Emphasizes safety precautions before installing the guide bar, chain, and clutch components.

Maintenance (Continued)

Replacing Guide Bar and Chain Procedure

Details the steps for removing the old chain and bar and installing a new one.

Maintenance (Continued)

Troubleshooting

Engine Not Starting or Flooded

Addresses issues like no spark or a flooded engine and their solutions.

Troubleshooting (Continued)

Homelite UT10918 Specifications

General IconGeneral
Bar Length18 inches
Weight13.2 lbs
Oil Capacity6.8 fl oz
Engine Displacement45 cc
Engine Type2-cycle
TypeGas
Power Output2.2 HP

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