CAT® 18V Brushless 5” Pruning Saw DG231 User Manual

Introduction

This manual provides essential instructions for the safe operation, maintenance, and care of your CAT® 18V Brushless 5” Pruning Saw, model DG231. Please read this manual thoroughly before using the tool to ensure proper function and to prevent injury.

Safety Information

WARNING: Read all safety warnings, instructions, illustrations, and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious injury.

• Always wear appropriate personal protective equipment (PPE) including safety glasses, gloves, and hearing protection.
• Keep hands and body parts clear of the chain when the tool is in operation.
• Ensure the work area is clear of obstructions and bystanders.
• Do not operate the saw in wet conditions or in the presence of flammable liquids or gases.
• Before performing any maintenance, adjustments, or changing accessories, always remove the battery pack.
• Use only CAT® 1 For All 18V battery packs and chargers with this tool.

Package Contents

Verify that all items listed below are present and in good condition upon unpacking:

• CAT® 18V Cordless 5” Pruning Saw (DG231)
• (1) Blade Sheath
• (1) CAT® 1 For All 18V 4.0Ah Lithium-Ion Battery
• (1) CAT® 1 For All 18V 4A Charger

Figure 1: Included Components. This image displays the CAT DG231 pruning saw, one 4.0Ah 18V Lithium-Ion battery, and the corresponding 18V battery charger.

Product Features

• High-Efficiency Brushless Motor: Provides increased power, extended run time, and longer tool life compared to brushed motors.
• Ultra-Compact & Lightweight Design: Facilitates easy maneuvering in confined spaces and comfortable operation. The tool weighs approximately 4.1 lbs.
• 1 For All Battery Platform: The included 18V battery and charger are compatible with all CAT® 18V cordless products.
• Automatic Chain Tensioning: A spring-loaded system automatically adjusts chain tension for optimal cutting performance.
• Onboard Chain Lubrication: Simplifies the lubrication process, ensuring smooth operation and reducing wear.
• Retractable Bar & Chain Guard: Offers protection and can be easily adjusted for undercutting tasks.
• Guarded Handle Design: Enhances user safety and grip security during operation.

Figure 2: Key Product Features. This diagram points out the retractable bar and chain guard, simplified chain tensioning mechanism, and the brushless motor technology.

Figure 3: Guarded Handle. The image shows the ergonomic handle design with an integrated guard for enhanced safety during use.

Setup

1. Charging the Battery

1. Connect the charger to a standard power outlet.
2. Slide the 18V Lithium-Ion battery pack onto the charger until it clicks into place.
3. Allow the battery to charge fully. Refer to the charger's indicator lights for charging status.
4. Once charged, remove the battery from the charger.

2. Installing the Battery

1. Align the charged battery pack with the battery port on the pruning saw handle.
2. Slide the battery into the port until it locks securely. Ensure it is firmly seated to prevent accidental dislodgement during operation.

3. Chain Lubrication

The pruning saw features onboard chain lubrication. Before first use and periodically during operation, ensure the oil reservoir is filled with appropriate chain lubricant.

1. Locate the oil reservoir cap on the saw body.
2. Unscrew the cap and carefully fill the reservoir with chain and bar oil. Do not overfill.
3. Securely replace the cap.

Figure 4: Onboard Chain Lubrication. This image demonstrates the process of refilling the chain oil reservoir on the pruning saw.

Operating Instructions

1. Pre-Operation Check

• Ensure the battery is fully charged and securely installed.
• Check the chain for proper tension (automatic tensioning system should handle this, but visual inspection is recommended).
• Verify the oil reservoir is adequately filled.
• Inspect the work area for potential hazards.

2. Starting and Stopping the Saw

• To start: Press and hold the safety lock-off button, then squeeze the trigger switch.
• To stop: Release the trigger switch. The chain will stop quickly.

3. Cutting Techniques

• General Cutting: Hold the saw firmly with both hands. Position the saw so the chain contacts the material to be cut. Apply steady, even pressure.
• Undercutting: The retractable bar and chain guard can be manually retracted to facilitate undercutting. Exercise extreme caution when performing undercuts.
• Branch Pruning: For smaller branches, a single cut may suffice. For larger branches, make an undercut first to prevent bark stripping, then complete the cut from the top.

Figure 5: On-the-Go Cutting. The image shows the pruning saw in action, cutting a branch, highlighting its suitability for various outdoor tasks.

Figure 6: Retractable Guard for Undercutting. This image illustrates how the guard can be retracted to allow for easier undercutting.

Maintenance

Regular maintenance ensures the longevity and safe operation of your pruning saw.

1. Cleaning

• After each use, remove the battery and clean the saw thoroughly.
• Use a brush or compressed air to remove sawdust, chips, and debris from the chain, bar, and motor housing vents.
• Wipe down external surfaces with a damp cloth. Do not use harsh chemicals.

2. Chain Sharpening and Replacement

• A dull chain will reduce cutting efficiency and increase strain on the motor. Sharpen the chain regularly or replace it when necessary.
• Refer to a qualified service technician for chain sharpening or replacement if you are unsure how to perform these tasks safely.

3. Storage

• Always install the blade sheath over the bar and chain before storing.
• Store the saw in a dry, secure location, out of reach of children and unauthorized users.
• Remove the battery pack from the tool before long-term storage.

Troubleshooting

Specifications

Warranty and Support

This CAT® DG231 Pruning Saw comes with a limited warranty. For specific warranty details, registration, or technical support, please refer to the warranty card included with your product or visit the official CAT® tools website. Keep your purchase receipt as proof of purchase.

For further assistance, contact CAT® customer service.