McCulloch EM250 Chainsaw Manual

The McCulloch EM250 is a lightweight, electric-powered chainsaw designed for domestic and light-duty cutting tasks. It features a 14-inch Oregon bar and chain, tool-free chain tensioning, automatic oiling system, safety chain brake, and is powered by a 240V AC electric motor. Below are key sections for safety, features, assembly, operation, maintenance, troubleshooting, and specifications.

1. Safety Information 2. Features at a Glance 3. Assembly & Preparation 4. Operation Instructions 5. Maintenance & Care 6. Chain Sharpening & Replacement 7. Troubleshooting 8. Specifications 9. Warranty Information

Safety Information

Read all instructions before use. Always wear appropriate PPE: safety glasses, hearing protection, gloves, sturdy footwear, and close-fitting clothing.

Hazard	Precaution
Electric Shock	Do not use in wet conditions. Ensure power cord is undamaged.
Kickback	Hold saw firmly with both hands. Do not cut with tip of bar.
Chain Contact	Keep hands away from chain. Engage chain brake when not cutting.
Falling Branches	Be aware of your surroundings. Do not operate above shoulder height.
Power Cord	Keep cord clear of cutting area and sharp objects.

WARNING! Never operate the chainsaw when tired or under the influence. Keep bystanders and pets at a safe distance.

Features at a Glance

Key components: Electric motor, 14-inch Oregon bar and chain, Front hand guard with chain brake, Automatic oiling system, Tool-free chain tensioner, Lock-off safety switch.

Feature	Description
Motor	240V AC, 2000W electric motor
Bar Length	14 inches (35 cm)
Chain	Oregon 91PX series, .325" pitch, 52 drive links
Oiling System	Automatic with manual override pump
Chain Tensioning	Tool-free side adjustment knob
Chain Brake	Inertia-activated safety brake
Weight	Approx. 4.1 kg (9 lbs)
Sound Level	< 100 dB(A)

Assembly & Preparation

Unpack and inspect all parts. Assembly requires minimal tools.

Attach the guide bar: Place bar onto mounting studs, ensuring chain fits into bar groove.
Install the chain: Fit chain over bar sprocket, ensuring cutting teeth face forward on top.
Tension the chain: Use side knob to adjust tension until chain snaps back when pulled from bar.
Fill oil reservoir: Use recommended bar and chain oil. Check for leaks.
Connect to power: Ensure switch is off. Plug into 240V outlet with RCD protection.

CAUTION! Chain must be properly tensioned. Loose chain can derail or cause injury.

Operation Instructions

Always start with the chainsaw on a stable surface, clear of obstructions.

Pre-cut check: Verify chain tension, oil level, and that bar nut is secure.
Starting: Press lock-off button, then squeeze trigger. Allow chain to reach full speed before cutting.
Basic cutting: Use the full length of the bar. Let the saw do the work; do not force.
Oiling: Automatic system operates during use. For heavy cutting, press manual oil pump button.
Stopping: Release trigger. Engage chain brake for safety when moving between cuts.

Tip: Plan your cut and escape path. Be mindful of pinch points when cutting logs.

Maintenance & Care

Regular maintenance ensures optimal performance and longevity.

After each use: Clean saw of debris. Check chain sharpness and tension.
Weekly: Clean air vents. Inspect power cord for damage.
Monthly: Clean bar groove and oil holes. Check sprocket for wear.
Oil: Use only high-quality chainsaw bar oil. Do not use waste oil.
Storage: Store in a dry place. Empty oil tank if storing long-term.

WARNING! Always unplug the chainsaw before performing any maintenance.

Chain Sharpening & Replacement

A sharp chain is essential for safe and efficient operation.

Sharpening: Use a 4.0mm (5/32") round file and file guide. Maintain factory angle (typically 30°).
Filing direction: File from inside tooth to outside, using consistent strokes.
Depth gauges: File down rakers (depth gauges) to maintain proper height difference.
Replacement: Replace chain when teeth are worn short or damaged. Use Oregon 91PX052G chain.
Bar care: Flip bar periodically for even wear. Clean oil passages.

CAUTION! Wear heavy gloves when handling the chain. Ensure saw is unplugged.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Saw won't start	No power, lock-off not engaged, faulty switch	Check outlet and cord. Press lock-off button fully. Contact service.
Chain doesn't turn	Chain brake engaged, low power, jammed sprocket	Disengage brake. Check voltage. Clean and inspect sprocket.
Chain runs slow	Dull chain, low voltage, insufficient oil	Sharpen chain. Check power source. Refill oil tank.
Excessive vibration	Loose parts, unbalanced chain, worn bar	Tighten all nuts/bolts. Sharpen chain evenly. Replace bar if worn.
Chain throws oil	Overfilled oil tank, incorrect oil viscosity	Drain excess oil. Use recommended bar oil.
Motor overheats	Dull chain, forcing cut, blocked air vents	Sharpen chain. Cut at correct speed. Clean air vents.

Specifications

Model: McCulloch EM250
Power Source: 240V AC, 50Hz
Motor Power: 2000W
Bar Length: 14 inches (35 cm)
Chain Pitch/Gauge: .325" / 1.3mm
Drive Links: 52
Oil Tank Capacity: 150 ml
Weight (without cord): 4.1 kg
Sound Pressure Level: 96 dB(A)
Vibration Level: < 2.5 m/s²

Warranty Information

McCulloch EM250 is covered by a 2-year domestic use warranty from date of purchase against defects in materials and workmanship. Warranty does not cover wear parts (chain, bar, sprocket), damage from misuse, neglect, improper maintenance, or commercial use. Proof of purchase is required.

Service: For technical support or to locate an authorized service center, contact:

McCulloch Customer Service: 1-800-521-1503
Website: www.mcculloch.com
Email: [email protected]

Disposal: Dispose of this product and its batteries in accordance with local environmental regulations. Do not dispose with household waste.