homelite chainsaw manual ut 100532

The Homelite UT-100532 is a gasoline-powered chainsaw designed for general-purpose cutting, pruning, and limbing tasks. It features a 2-stroke engine, automatic oiling system, anti-vibration handles, chain brake, and a guide bar typically ranging from 14 to 18 inches. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Assembly & Preparation 3. First-Time Operation 4. Specifications 5. Controls and Components 6. Fuel & Lubrication 7. Cutting Techniques 8. Safety Features 9. Maintenance & Storage 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 2-stroke gasoline engine, guide bar and chain, automatic chain oiler, anti-vibration system, chain brake, throttle trigger with lockout, choke control, and primer bulb.

FeatureDescription
Engine Type2-stroke, air-cooled gasoline engine
Guide Bar14" to 18" (model dependent), replaceable sprocket nose
Chain OilerAutomatic with manual override adjustment
Anti-VibrationRubber-mounted handles to reduce operator fatigue
Chain BrakeInertia-activated front hand guard for kickback protection
Ignition SystemElectronic ignition (CDI) for reliable starting
Fuel Tank CapacityApproximately 0.5 liters (varies by model)
Oil Tank CapacityApproximately 0.25 liters for chain lubrication
Throttle LockoutPrevents accidental throttle engagement
Choke ControlFor cold starting enrichment

Assembly & Preparation

Unpack and inspect all parts. Assemble on a clean, flat surface.

  1. Attach Guide Bar & Chain: Place bar over studs, align chain with drive sprocket, tension correctly, secure bar nuts.
  2. Fill Fuel: Mix fresh unleaded gasoline (87 octane minimum) with 2-stroke oil at 50:1 ratio (check manual for exact ratio).
  3. Fill Chain Oil: Use approved bar and chain oil in separate oil tank.
  4. Check Controls: Ensure throttle trigger, lockout, choke, and chain brake move freely.

WARNING! Always wear appropriate PPE: safety glasses, gloves, hearing protection, chainsaw chaps, and sturdy boots. Never operate without proper bar and chain lubrication.

First-Time Operation

Start the chainsaw on the ground in a clear area, holding it securely.

  1. Pre-Start Check: Ensure chain brake is disengaged (pulled back towards rear handle).
  2. Set Controls: Move choke lever to FULL CHOKE position. Press primer bulb 5-6 times until fuel is visible.
  3. Starting Procedure: Place saw on ground, secure rear handle with right foot, grip front handle with left hand. Pull starter cord briskly until engine fires. Move choke to HALF position and pull again to start. Allow to warm up.
  4. Test Chain Brake: With engine at idle, push front hand guard forward to engage brake; chain should stop immediately.

CAUTION! Keep bystanders and pets at least 15 feet away. Maintain secure footing and balance at all times.

Specifications

Controls and Components

Main controls located on top and rear handle. Front Handle: Chain brake/hand guard. Rear Handle: Throttle trigger with lockout, choke lever, primer bulb, stop switch.

Additional Components: Fuel tank cap, oil tank cap, air filter cover, spark plug, muffler, decompression valve (if equipped), and bar adjustment screw.

Operation: Squeeze throttle lockout and trigger to increase engine speed. Push hand guard forward to engage chain brake. Use choke for cold starts only.

Fuel & Lubrication

Use fresh, clean unleaded gasoline (min 87 octane) mixed with high-quality 2-stroke engine oil designed for air-cooled engines.

  1. Fuel Mix: 50:1 ratio (check manual). Add oil to gas can first, then gasoline. Shake well.
  2. Chain Oil: Use dedicated bar and chain oil for proper lubrication, especially in cold weather.
  3. Storage: Run engine dry or add fuel stabilizer for long-term storage. Empty oil tank.

Tip: Never use straight gasoline, automotive motor oil, or dirty fuel. Always mix fuel in an approved container outdoors.

Cutting Techniques

Basic cutting for felling, limbing, bucking, and pruning.

  1. Felling: Plan escape path. Make notch cut on fall side, then back cut. Never cut above shoulder height.
  2. Limbing: Support log off ground. Cut from top of log, using bar near guide tip for small limbs.
  3. Bucking: Support log fully. Cut from top down, avoiding contact with ground (dirt dulls chain).
  4. Pruning: Use light touch, let chain do the work. Beware of spring-back on branches.
  5. Kickback Prevention: Maintain secure grip, keep saw at waist level or below, do not cut with bar tip.

WARNING! Kickback zone is the upper quadrant of the bar tip. Never engage this area during cutting. Always hold saw firmly with both hands.

Safety Features

Chain Brake: Inertia-activated or manual via front hand guard to stop chain during kickback. Throttle Lockout: Prevents accidental throttle engagement. Right-Hand Guard: Protects from rear kickback. Anti-Vibration: Reduces operator fatigue. Muffler: Reduces noise and directs exhaust away.

Maintenance & Storage

Perform daily maintenance checks. Clean air filter regularly. Sharpen chain when needed. Check chain tension frequently (should snap back when pulled from bar).

Storage: Clean saw thoroughly. Empty fuel tank (run dry) or add stabilizer. Remove chain, clean and oil it. Store in dry, cool place away from ignition sources.

CAUTION! Always disconnect spark plug wire before performing maintenance. Allow engine to cool completely.

Regulatory Information

EPA & CARB compliant for emissions. Meets ANSI B175.1 safety standards for gasoline-powered chainsaws. Copyright and trademarks owned by Homelite or its affiliates. For technical support, parts, or service, contact Homelite Customer Service at 1-800-242-4672 or visit www.homelite.com.

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startOld fuel, clogged filter, spark plugUse fresh fuel mix; clean/replace air filter; check/replace spark plug.
Engine runs poorly/diesClogged carburetor, fuel lineClean carburetor and fuel filter; check fuel line for cracks.
Chain doesn't turnBrake engaged, clutch, sprocketDisengage chain brake; check clutch drum and drive sprocket for wear.
Chain throws oil excessivelyOiler adjustmentAdjust oil flow screw (usually near oil tank).
Chain dulls quicklyHitting ground, dirty woodSharpen chain properly; avoid cutting into dirt or sand.
Excessive vibrationLoose parts, unbalanced chainTighten all nuts/bolts; check chain for damage and proper tension.

Service Intervals: Refer to manual for spark plug, air filter, fuel filter, and chain replacement schedules.

Service: 1-800-242-4672; www.homelite.com

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