Jonsered 2171 Chainsaw Manual

The Jonsered 2171 is a professional-grade chainsaw featuring a 71cc engine, designed for demanding forestry and tree service work. This manual covers essential safety procedures, technical specifications, daily operation, maintenance schedules, troubleshooting, and spare parts information. Below are key sections for safe operation, features, assembly, maintenance, and troubleshooting.

Features at a Glance

Key components: 71cc professional engine, Anti-Vibration System (AVS), Quick-release air filter, Side-mounted chain tensioner, Combined choke/stop control, Decompression valve.

Safety Instructions

Read all instructions before operation. Wear proper PPE.

1. Personal Protective Equipment: Always wear chainsaw chaps, helmet with face shield, hearing protection, gloves, and steel-toe boots.
2. Work area safety: Clear area of obstacles; ensure secure footing; maintain safe distance from others.
3. Fuel safety: Refuel outdoors with engine off and cool. Use fuel mix 50:1 (Jonsered chain oil with 95 octane gasoline).
4. Kickback prevention: Keep saw sharp; use low-kick chain; grip firmly; avoid tip contact.

WARNING! Chainsaw operation is dangerous. Failure to follow safety instructions can result in serious injury or death.

Assembly & First Use

Unpack and inspect contents. Assemble bar and chain.

1. Mount guide bar: Place bar on studs, align chain, adjust tension with side screw.
2. Fill tanks: Add fuel mix to fuel tank; add chain oil to oil tank.
3. Starting procedure: Engage chain brake; set choke; pull starter cord until fire; disengage choke; restart.
4. Warm-up: Allow engine to idle for 30 seconds before cutting.

CAUTION! Ensure chain brake is engaged when starting. Keep hands away from chain.

Specifications

• Engine Type: 2-stroke, single cylinder, air-cooled.
• Displacement: 71 cc.
• Bore x Stroke: 52 mm x 42 mm.
• Power: 4.8 kW at 9000 rpm.
• Max torque: 5.2 Nm at 7000 rpm.
• Idle speed: 2700 rpm.
• Max power speed: 9000 rpm.
• Fuel consumption: Approx. 600 g/kWh.
• Sound pressure level: 112 dB(A) at operator's ear.
• Vibration levels: Front handle 4.2 m/s², rear handle 3.8 m/s².

Controls and Operation

Main controls: Throttle trigger, throttle lockout, choke/stop control, decompression valve, chain brake, master control lever.

Operation: Start with chain brake engaged. For cutting, release brake, apply throttle. Use full throttle for cutting, idle for moving between cuts.

Maintenance controls: Side-mounted chain tensioner, quick-release air filter cover, spark plug access, cylinder cover clips.

Maintenance Schedule

Daily: Check chain tension, sharpness, bar condition, air filter, fuel/oil levels.

1. After each use: Clean air filter; check for loose parts.
2. Weekly: Clean cooling fins; inspect spark plug; check anti-vibration elements.
3. Monthly: Clean fuel filter; inspect clutch and sprocket; check carburetor settings.
4. Annually: Replace fuel lines; inspect piston through exhaust port; professional servicing recommended.

Tip: Always use genuine Jonsered parts for maintenance.

Chain & Bar Care

Proper chain maintenance ensures performance and safety.

1. Sharpening: Use round file matching chain pitch (typically 3/8" or .404"). Maintain correct filing angle (30°).
2. Tension: Adjust when chain sags from bar rails. Correct tension allows manual pull with slight resistance.
3. Bar maintenance: Clean bar groove weekly; flip bar monthly for even wear; dress rails with file if burred.
4. Lubrication: Ensure oiler works; adjust flow for conditions (more for hardwoods, less for softwoods).

WARNING! Always wear gloves when handling chain. Stop engine before adjustments.

Carburetor Adjustment

Three adjustment screws: L (low speed), H (high speed), T (idle).

Standard settings: L - 1 turn open, H - 1 turn open, T - 1 turn open. Fine-tune for optimal performance.

Storage Guidelines

For long-term storage (over 30 days):

1. Drain fuel tank and run engine until it stops.
2. Remove spark plug, add 1-2 ml of engine oil, pull starter 2-3 times, reinstall plug.
3. Clean entire saw, especially cooling fins and air filter.
4. Remove chain, clean and soak in oil; store bar flat.
5. Store in dry, cool place, protected from dust.

CAUTION! Never store with fuel in tank for extended periods.

Warranty Information

Jonsered 2171 comes with a 2-year commercial warranty and 90-day warranty on cutting attachments. Warranty covers defects in materials and workmanship. Not covered: normal wear, misuse, improper maintenance, non-genuine parts. For warranty claims, contact authorized Jonsered dealer with proof of purchase.

Troubleshooting

Service: For technical support, contact authorized Jonsered dealer or visit www.jonsered.com