35098 Chainsaw Manual

The 35098 Chainsaw is a professional-grade gasoline-powered chainsaw designed for heavy-duty cutting tasks, featuring a high-performance engine, automatic chain oiling system, safety chain brake, anti-vibration handles, and easy-start technology. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: High-torque 2-stroke engine, 18-inch guide bar, automatic oiler, safety chain brake, decompression valve, anti-vibration system, and quick-stop chain brake.

Feature	Description
Engine Displacement	58cc 2-stroke gasoline engine
Guide Bar Length	18 inches (45 cm)
Chain Type	3/8" pitch, .050" gauge safety chain
Automatic Oiler	Continuous lubrication system
Safety Features	Chain brake, throttle lockout, right-hand guard
Starting System	Decompression valve for easy pull-start
Anti-Vibration	Spring-mounted handles reduce operator fatigue
Fuel Capacity	20 oz (600 ml) fuel tank
Oil Capacity	10 oz (300 ml) chain oil tank
Weight	12.8 lbs (5.8 kg) without bar and chain

Safety Instructions

Always wear proper safety equipment and follow safe operating procedures.

1. Personal Protective Equipment: Wear safety glasses, hearing protection, gloves, chainsaw chaps, and steel-toed boots.
2. Work Area Safety: Clear area of obstacles, ensure secure footing, keep bystanders at least 15 feet away.
3. Pre-Operation Check: Verify chain tension, sharpness, lubrication, and all fasteners are tight.
4. Safe Handling: Hold with both hands, maintain proper balance, never operate above shoulder height.

WARNING! Chainsaw kickback can cause serious injury. Always use proper grip and cutting techniques. Never operate when tired or under influence of drugs/alcohol.

Assembly & Preparation

Unpack and inspect all components before assembly.

1. Attach Guide Bar and Chain: Place bar on mounting studs, fit chain around sprocket and bar, adjust tension.
2. Fill Fuel Tank: Mix gasoline with 2-stroke oil at 50:1 ratio (87 octane minimum).
3. Fill Chain Oil Tank: Use quality bar and chain oil (not used motor oil).
4. Check Controls: Verify throttle trigger, throttle lockout, chain brake, and stop switch function properly.

CAUTION! Fuel is flammable. Refuel in well-ventilated area away from ignition sources. Allow engine to cool before refueling.

Specifications

• Model: 35098 Professional Chainsaw
• Engine Type: 2-stroke, air-cooled, single cylinder
• Displacement: 58 cc (3.5 cu in)
• Power Output: 3.8 HP at 9,000 RPM
• Maximum Chain Speed: 65 ft/sec (20 m/sec)
• Fuel/Oil Ratio: 50:1 (unleaded gasoline to 2-stroke oil)
• Ignition System: Electronic, capacitor discharge
• Carburetor: Diaphragm type with adjustable H and L needles
• Spark Plug: Champion RCJ7Y (gap 0.025 in / 0.63 mm)
• Warranty: 2 years commercial, 5 years residential

Controls and Functions

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

Chain Brake: Manual activation via front hand guard; automatic activation via inertia. Throttle Lockout: Must be depressed before throttle can be engaged. Decompression Valve: Reduces cylinder pressure for easier starting. Choke Control: Enriches fuel mixture for cold starts.

Starting the Chainsaw

Follow proper starting procedure to avoid injury and engine damage.

1. Place on flat, clear surface with chain not touching anything.
2. Engage chain brake by pushing hand guard forward.
3. Set choke to full position (cold engine) or half position (warm engine).
4. Press primer bulb 5-6 times until fuel is visible.
5. Hold rear handle with right hand, place left foot through front handle.
6. Pull starter rope briskly until engine fires (1-3 pulls).
7. Move choke to run position and pull starter rope to start.
8. Allow 30-second warm-up at idle before cutting.

Tip: If engine floods, move choke to run position and pull starter rope 8-10 times with throttle fully open.

Operating Procedures

Proper cutting techniques ensure safety and efficiency.

1. Basic Cutting: Use lower quadrant of bar nose to avoid kickback. Let chain do the work without forcing.
2. Felling Trees: Plan escape path, make notch cut 1/3 of tree diameter, make felling cut 2 inches above notch.
3. Limbing: Work from trunk to tips, keep trunk between you and chain, cut downward on top of log.
4. Bucking: Support log properly, cut from top down, use plastic or wooden wedges for binding cuts.
5. Kickback Prevention: Maintain firm grip, don't cut with bar tip, keep chain sharp and properly tensioned.

WARNING! Never cut with upper quadrant of bar nose. Always be prepared for kickback reaction.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Interval	Maintenance Task
Daily/Before Use	Check chain tension, sharpness, lubrication; inspect all fasteners
Every 10 Hours	Clean air filter, check spark plug, clean cooling fins
Every 20 Hours	Clean fuel filter, check carburetor adjustment
Every 50 Hours	Replace spark plug, clean exhaust screen, check anti-vibration elements
Every 100 Hours	Replace fuel filter, clean carburetor, check clutch and sprocket
Seasonally	Drain fuel system for storage, sharpen drive sprocket

Chain Sharpening & Tensioning

Proper chain maintenance is critical for safe operation.

1. Chain Tension: Adjust when chain sags from bar rails. Loosen bar nuts, adjust tensioning screw until chain snaps back when pulled from bar.
2. Sharpening: Use round file matching chain pitch (5/32" for 3/8" chain). File each cutter at 30° angle, maintain consistent depth gauge height.
3. Depth Gauges: File to 0.025" below cutter edge using depth gauge tool.
4. Bar Maintenance: Rotate bar regularly, file rails if burred, clean oil holes.

CAUTION! Always wear gloves when handling chain. Ensure chain brake is engaged during maintenance.

Storage Guidelines

Proper storage prevents fuel system issues and corrosion.

1. Drain fuel tank and run engine until it stops to clear carburetor.
2. Remove chain, clean in solvent, coat with oil and store separately.
3. Clean entire saw, especially cooling fins and air intake.
4. Store in dry place, covered to prevent dust accumulation.
5. For long-term storage, fog engine through spark plug hole.

WARNING! Never store with fuel in tank for more than 30 days. Fuel deterioration can damage carburetor.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No spark, fuel issues, flooded	Check spark plug, fuel mixture, choke setting; clear flood
Engine starts then dies	Clogged fuel filter, carburetor adjustment	Replace fuel filter, adjust H and L needles
Poor cutting performance	Dull chain, improper tension	Sharpen chain, adjust tension, check lubrication
Chain won't stop when brake engaged	Worn brake band, dirty mechanism	Replace brake band, clean brake components
Excessive vibration	Loose components, worn anti-vibration mounts	Tighten all fasteners, replace anti-vibration elements
Chain throws oil	Over-oiling, wrong oil viscosity	Adjust oiler, use proper bar and chain oil
Engine overheats	Dirty cooling fins, lean mixture	Clean cooling fins, enrich fuel mixture

Service: For technical support, contact 1-800-555-35098 or visit www.chainsaw35098manual.com

Parts: Use only genuine 35098 replacement parts to maintain performance and safety.