CS 310 Chainsaw Manual

The CS 310 Chainsaw is a professional-grade chainsaw designed for heavy-duty cutting tasks, featuring a high-performance engine, automatic chain oiling system, safety chain brake, anti-vibration handles, quick-stop chain brake, and ergonomic design. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: High-torque engine, Automatic chain oiler, Safety chain brake, Anti-vibration system, Quick-stop feature, Ergonomic handles.

Feature	Description
Engine Type	2-stroke gasoline engine with high torque output
Chain Brake	Automatic inertia-activated safety brake
Chain Oiler	Automatic lubrication system with manual override
Anti-Vibration	Reduced vibration handles for comfort
Bar Length	16-inch professional guide bar
Weight	10.8 lbs (without fuel and bar oil)
Fuel Capacity	14.9 fl oz (440 ml)
Oil Capacity	8.5 fl oz (250 ml)
Safety Features	Chain catcher, right hand guard, throttle lockout
Starting System	Easy-pull recoil starter

Assembly & Setup

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

1. Attach guide bar and chain: Place bar on mounting studs, adjust tension, secure with nuts.
2. Install chain brake: Ensure brake handle moves freely and engages properly.
3. Fill fuel tank: Use fresh gasoline/oil mixture (50:1 ratio).
4. Fill chain oil: Use recommended bar and chain oil.
5. Check controls: Verify throttle, choke, and chain brake operation.

WARNING! Always wear protective gear during assembly. Keep hands away from sharp chain.

Safety Instructions

Always follow safety guidelines to prevent injury.

1. Wear protective equipment: Safety glasses, hearing protection, gloves, chainsaw chaps, steel-toe boots.
2. Clear work area: Remove obstacles and ensure secure footing.
3. Check chain brake: Test before each use.
4. Never operate above shoulder height or on a ladder.
5. Keep bystanders at least 15 feet away.

CAUTION! Never operate chainsaw with damaged or missing safety features.

Specifications

• Engine Displacement: 50.2 cc
• Power Output: 3.2 HP
• Fuel: Gasoline/oil mix (50:1 ratio)
• Chain Pitch: 3/8 inch
• Chain Gauge: 0.050 inch
• Max Cutting Length: 16 inches
• Sound Level: 105 dB(A) at operator's ear
• Vibration Level: Front handle: 4.2 m/s², Rear handle: 5.1 m/s²
• Warranty: 2-year limited warranty

Controls and Components

Main controls: Throttle trigger, Throttle lockout, Choke lever, Chain brake handle, Stop switch.

Components: Front handle, Rear handle, Fuel tank cap, Oil tank cap, Spark plug, Air filter, Chain tensioner, Decompression valve.

Operation: Pull choke for cold start, engage throttle lockout before pulling trigger, push chain brake forward to engage safety stop.

Operating Instructions

Starting procedure and cutting techniques.

1. Cold start: Set chain brake, move choke to closed position, pull starter cord until engine fires.
2. Warm start: Choke in open position, pull starter cord.
3. Cutting: Hold firmly with both hands, maintain proper stance, let chain do the work.
4. Kickback prevention: Keep saw at proper angle, avoid tip contact.
5. Shutdown: Move stop switch to OFF position.

Tip: Always cut at full throttle for best performance and chain lubrication.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and safety.

1. Daily: Clean air filter, check chain tension, inspect chain sharpness.
2. Weekly: Clean spark arrestor, check spark plug, clean cooling fins.
3. Monthly: Replace fuel filter, clean carburetor, check all bolts and fasteners.
4. Seasonal: Replace spark plug, clean fuel tank, inspect anti-vibration mounts.

WARNING! Always disconnect spark plug before performing maintenance.

Chain Sharpening

Proper chain sharpening ensures efficient cutting and reduces kickback risk.

1. Secure chainsaw: Use vise to hold bar securely.
2. File size: Use 5/32 inch round file for 3/8 pitch chain.
3. Filing angle: Maintain 30-degree angle on cutters.
4. File depth gauges: Use depth gauge tool to maintain proper height.
5. Equal filing: File all cutters to same length for balanced cutting.

CAUTION! Wear gloves when handling sharp chain. Replace chain when cutters are worn beyond repair.

Storage Guidelines

Proper storage prevents fuel system damage and corrosion.

1. Empty fuel tank: Run engine until it stops from fuel starvation.
2. Drain chain oil: Empty oil tank to prevent leaks.
3. Clean thoroughly: Remove sawdust and debris from all surfaces.
4. Store in dry place: Cover with breathable cloth, avoid plastic bags.
5. Long-term storage: Remove spark plug and add oil to cylinder.

Tip: Store chain separately in oil to prevent rust.

Warranty Information

2-year limited warranty covering defects in materials and workmanship. Warranty does not cover normal wear, misuse, improper maintenance, or unauthorized repairs. For warranty claims, contact authorized service center with proof of purchase. Keep original receipt for warranty validation.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Old fuel, clogged filter, flooded engine	Use fresh fuel mix, clean air filter, wait 10 minutes if flooded.
Engine runs poorly	Dirty carburetor, bad spark plug	Clean carburetor, replace spark plug.
Chain won't turn	Brake engaged, clutch worn	Disengage chain brake, inspect clutch assembly.
Chain doesn't oil	Empty oil tank, clogged oil ports	Fill oil tank, clean oil ports on bar.
Excessive vibration	Loose components, worn mounts	Tighten all bolts, replace anti-vibration mounts.
Chain dulls quickly	Cutting dirty wood, improper filing	Avoid cutting ground-contact wood, sharpen properly.

Service: For technical support, contact 1-800-CHAINSAW or visit www.cs-chainsaw.com