Stihl Autocut C25 2 Manual

The Stihl Autocut C25 2 is a professional-grade trimmer head designed for use with compatible Stihl grass trimmers and brushcutters. It features a semi-automatic line advance system (Tap 'N Go), a robust cutting head with a reinforced housing, and is engineered for durability and ease of use in demanding conditions. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Reinforced polymer housing, Tap 'N Go bump-feed mechanism, pre-wound spool, locking button, and compatible drive shaft interface.

Installation & Mounting

Ensure the power tool is switched off and disconnected from any power source (battery removed or spark plug wire disconnected for gas models).

1. Remove the existing cutting head or guard (if equipped).
2. Align the Autocut C25 2 head with the drive shaft, ensuring proper engagement.
3. Thread the retaining nut or bolt by hand to prevent cross-threading.
4. Tighten securely using the appropriate wrench (do not over-tighten).
5. Reinstall any necessary trimmer guard.

WARNING! Always wear protective gloves and eye protection. Ensure the tool cannot start accidentally during installation.

First-Time Setup

Before first use, load the cutting line into the spool.

1. Press and hold the locking button on the head.
2. Rotate the spool cover counter-clockwise to remove it.
3. Remove the empty spool (if present).
4. Wind the new line onto the spool following the directional arrows. Do not overfill.
5. Insert the line ends through the eyelets on the housing.
6. Reinstall the spool and cover, rotating clockwise until it clicks and locks.
7. Pull on both line ends to release them from the spool retainers.

CAUTION! Use only Stihl-approved nylon trimmer line of the specified diameter. Incorrect line can cause poor performance or damage.

Specifications

• Model: Autocut C25 2
• Type: Bump-feed trimmer head
• Compatible Line Diameter: .095 in (2.4 mm) or .105 in (2.7 mm)
• Line Capacity: Approximately 25 feet (7.6 meters) of .095" line
• Drive System: Compatible with specific Stihl gear and direct drive shafts
• Weight: Approximately 0.5 lbs (0.23 kg)
• Material: Reinforced polymer housing, metal internal components
• Operating Speed: For use with trimmers up to recommended max RPM

Controls and Operation

Operation is primarily through the Tap 'N Go system and the power tool's throttle.

Starting: Start your Stihl trimmer according to its manual. Allow head to reach full operating speed.

Cutting: Use a sweeping motion from side to side, keeping the head parallel to the ground.

Advancing Line: When line wears short, lightly tap the head on the ground while the tool is running at high speed. This releases a controlled length of fresh line. Avoid excessive force.

Stopping: Release throttle trigger and allow head to stop completely before setting tool down.

Line Loading & Replacement

Reload line when spool is empty or line breaks frequently.

1. Stop the tool and ensure it is completely off.
2. Clean any debris from around the head.
3. Press locking button and rotate cover to open.
4. Remove old spool and any leftover line.
5. Wind new line tightly and evenly onto the spool, following directional arrows.
6. Thread ends through eyelets, reassemble, and pull lines free as in First-Time Setup.

Tip: For best results, use genuine Stihl trimmer line and ensure lines are of equal length after advancing.

Maintenance & Care

Regular maintenance ensures optimal performance and longevity.

1. After Each Use: Clean grass and debris from the head housing and guard.
2. Weekly (or as needed): Inspect for cracks or damage. Check that the head rotates freely without wobble.
3. Monthly: Remove the head and clean the drive shaft interface. Apply a light grease to the shaft if recommended by the trimmer manual.
4. Annually: Consider replacing the entire head if heavily worn or damaged.

WARNING! Never perform maintenance on a hot tool or while it is connected to power. Always disconnect the spark plug or battery.

Safety Features

Locking Button: Prevents accidental opening during operation. Reinforced Housing: Protects internal mechanism from impacts. Guard Compatibility: Must be used with the appropriate Stihl trimmer guard to deflect debris.

Always Operate With: Eye protection, sturdy gloves, long pants, and closed-toe shoes. Keep bystanders and pets at a safe distance.

Storage

Store the trimmer with the Autocut head in a clean, dry place, out of reach of children.

1. Clean the head thoroughly before storage.
2. If storing for an extended period, remove the spool to relieve spring tension.
3. Store the tool and head in a vertical position or as recommended in the trimmer manual.

CAUTION! Do not store near chemicals, open flame, or in direct sunlight for prolonged periods.

Regulatory Information

This product complies with applicable safety and performance standards. The Stihl Autocut C25 2 is designed as a replacement part for Stihl power tools. STIHL is a registered trademark of Andreas Stihl AG & Co. KG. For genuine parts, service, and support, contact an authorized STIHL dealer or visit www.stihlusa.com.

Troubleshooting

Service: For persistent issues, contact an authorized STIHL servicing dealer.

Support: 1-800-467-8445 | www.stihlusa.com