440evl chainsaw manual

The 440EVL chainsaw is a professional-grade gasoline-powered chainsaw designed for heavy-duty cutting tasks. Featuring a 70cc engine, automatic oiling system, anti-vibration handles, chain brake safety feature, easy-start technology, and ergonomic design. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 70cc 2-stroke engine, 20-inch guide bar, automatic chain oiler, inertia-activated chain brake, decompression valve, anti-vibration system, quick-stop chain brake.

Feature	Description
Engine displacement	70cc 2-stroke gasoline engine
Guide bar length	20 inches (50cm) standard
Chain pitch	3/8 inch
Fuel capacity	0.55 liters (18.6 oz)
Oil capacity	0.26 liters (8.8 oz)
Weight (dry)	6.2 kg (13.7 lbs)
Chain brake	Inertia-activated safety feature
Anti-vibration	Reduced vibration handles
Decompression valve	Easier starting
Automatic oiler	Continuous chain lubrication

Safety Instructions

Read all instructions before operation. Wear proper safety equipment.

1. Always wear: Safety glasses, hearing protection, gloves, chainsaw chaps, steel-toe boots.
2. Clear work area: Remove debris, ensure stable footing, identify escape routes.
3. Check chain brake: Test before each use by pushing forward on front hand guard.
4. Fuel safety: Refuel in well-ventilated area, away from ignition sources.

WARNING! Chainsaw kickback can cause serious injury. Always maintain proper grip and stance.

Assembly & Preparation

Unpack and inspect all components. Assemble with included tools.

1. Attach guide bar: Loosen bar nuts, position bar on studs, align chain sprocket.
2. Install chain: Place chain on bar with cutting teeth facing forward, adjust tension.
3. Fuel mixture: Use 50:1 gasoline to 2-stroke oil ratio (89 octane minimum).
4. Chain oil: Fill with bar and chain oil (not motor oil).

CAUTION! Ensure chain is properly tensioned - should snap back when pulled from bar.

Specifications

• Engine Type: 2-stroke, single cylinder, air-cooled.
• Power Output: 4.5 kW (6.0 hp) at 9,000 RPM.
• Maximum RPM: 13,500 (governed).
• Idle Speed: 2,800 RPM.
• Ignition System: Electronic, capacitor discharge.
• Carburetor: Diaphragm type with adjustable H/L screws.
• Spark Plug: NGK BPMR7A, gap 0.5mm (0.020 inch).
• Fuel Consumption: Approx. 0.6 liters/hour at full load.
• Sound Level: 105 dB(A) at operator's ear.

Controls and Components

Main controls: Throttle trigger, throttle lockout, choke control, stop switch, decompression valve.

Safety Features: Chain brake, right hand guard, front hand guard, anti-vibration system.

Maintenance points: Air filter cover, spark plug access, chain tensioner, oil filler cap, fuel cap. Starting system: Recoil starter with rope, decompression valve for easier pulling. Chain oiler: Automatic with manual override button for extra lubrication.

Starting Procedure

Cold start sequence for safe operation.

1. Place on flat, clear surface with chain not touching anything.
2. Engage chain brake by pushing forward on front hand guard.
3. Set choke to full position (cold start only).
4. Press decompression valve (if equipped).
5. Pull starter rope briskly until engine fires (2-3 pulls).
6. Move choke to half position, pull until engine starts.
7. Disengage chain brake before cutting.

Tip: Warm engine starts require no choke - use half choke if needed.

Operation Guidelines

Proper cutting techniques for safety and efficiency.

1. Grip: Left hand on front handle, right hand on rear handle with thumb wrapped.
2. Stance: Feet shoulder-width apart, left foot slightly forward.
3. Cutting: Use lower part of bar nose to avoid kickback.
4. Bucking: Support log properly, cut from top down for compression wood.
5. Limbing: Stand on opposite side of tree, cut downward branches first.
6. Felling: Plan escape path, make notch cut first, then back cut.
7. Pinched bar: Stop engine, use wedge to free bar, never force saw.

WARNING! Never operate above shoulder height or with one hand.

Maintenance Schedule

Daily: Check chain tension, sharpness, and lubrication. Clean air filter, check fuel/oil levels.

Weekly: Clean spark arrestor screen, check chain brake function, inspect bar for wear.

Monthly: Clean cooling fins, check fuel filter, inspect anti-vibration mounts.

Seasonal: Replace spark plug, clean carburetor, check all fasteners for tightness.

Chain Sharpening

Use round file matching chain pitch (typically 5.5mm/7/32 inch).

1. Secure bar in vise with chain properly tensioned.
2. File each cutter at 30° angle, maintaining original angle.
3. File from inside to outside, equal strokes per cutter.
4. Check depth gauges with gauge tool, file down if too high.
5. Rotate chain to sharpen opposite side cutters.

CAUTION! Wear gloves when handling chain. Replace chain when cutters are worn beyond fileable limit.

Storage Guidelines

Long-term storage preparation to prevent damage.

1. Drain fuel tank completely or add fuel stabilizer.
2. Run engine until carburetor is dry.
3. Remove chain, clean and oil it, store separately.
4. Clean entire saw, especially cooling fins and air filter.
5. Store in dry place, covered to prevent dust accumulation.

Important: Never store with fuel in tank for more than 30 days without stabilizer.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	No spark/fuel/flooded	Check spark plug, fuel flow, air filter; use choke properly.
Engine starts then dies	Carburetor adjustment	Adjust H/L screws; clean carburetor; check fuel filter.
Poor cutting performance	Dull chain/wrong angle	Sharpen chain properly; check depth gauges; adjust tension.
Chain won't oil	Clogged oiler/empty tank	Clean oil ports; refill oil; check oil pump function.
Excessive vibration	Loose components/worn mounts	Tighten all fasteners; check anti-vibration mounts.
Chain keeps coming off	Worn bar/improper tension	Replace worn bar; adjust tension properly; check sprocket.

Service Intervals: Professional service recommended every 50 operating hours.

Support: Contact authorized service center for major repairs. Warranty: 2 years commercial use, 5 years personal use.