Cordless Ratchet Wrench KDPB04-10

Introduction

Thank you for purchasing this product. Before using this cordless ratchet wrench, please read this instruction manual carefully to ensure correct and safe operation. Please keep this manual in a convenient place for future reference.

Important Safety Precautions for Electric Tools

General Safety

• Keep the work area clean and well-lit.
• Do not operate in explosive atmospheres (flammable liquids, gases, dust).
• Keep children and bystanders away from the work area.

Electrical Safety

• Use appropriate power outlets and avoid modifying plugs.
• Do not touch grounded objects (pipes, radiators, ranges, refrigerators).
• Avoid using the tool in rain or wet conditions.
• Handle the power cord with care; do not pull, carry by the cord, or expose to heat, oil, sharp edges, or moving parts.
• Use outdoor-rated extension cords for outdoor use.
• Use a residual current device (RCD) for wet locations.

Personal Safety

• Stay alert, pay attention, and use common sense. Do not operate when tired, under the influence of drugs, alcohol, or medication.
• Wear appropriate personal protective equipment (PPE): safety glasses, dust mask, non-slip safety shoes, safety helmet, hearing protection.
• Ensure the switch is OFF before connecting the battery or plugging in.
• Remove any adjustment keys or wrenches before operating.
• Maintain proper footing and balance; do not overreach.
• Wear appropriate clothing: avoid loose clothing, jewelry, and tie back long hair.
• Connect dust extraction equipment if provided.
• Do not become complacent with frequent use; always follow safety principles.

Tool Usage

• Do not force the tool; use the correct tool for the application.
• Do not use tools with faulty switches.
• Disconnect the battery or unplug before making adjustments, changing accessories, or storing the tool.
• Store tools out of reach of children and untrained individuals.
• Maintain the tool and accessories.

Battery Tool Usage

• Use only specified chargers and batteries.
• Do not expose batteries to short circuits (e.g., with paper clips, coins, keys, nails).
• Handle battery leakage carefully; wash affected areas with water and seek medical attention if necessary.
• Do not use damaged or modified batteries.
• Keep batteries away from fire and high temperatures (above 130°C / 265°F).
• Charge batteries only with the specified charger and within the recommended temperature range.

Repair

• Have repairs performed by an authorized service center using genuine parts.
• Do not attempt to repair damaged batteries; contact the retailer.

Battery Safety Precautions

• Do not disassemble, open, or crush batteries.
• Keep batteries away from children.
• Do not expose batteries to heat or fire; avoid storage in direct sunlight.
• Prevent short circuits by keeping batteries away from conductive materials.
• Do not subject batteries to mechanical shock.
• Handle battery leakage carefully; wash affected areas with water and seek medical attention.
• Use only the specified charger for charging.
• Do not use batteries not designed for this tool.
• Do not use counterfeit, modified, or third-party batteries.
• Always use genuine DONGCHENG batteries.
• Keep batteries clean and dry.
• Clean battery terminals with a dry cloth if dirty.
• Charge batteries before use.
• Do not leave batteries on continuous charge.
• Recondition batteries after long storage for optimal performance.
• Do not use batteries for purposes other than intended.
• Remove batteries from the tool when not in use.
• Keep batteries away from microwaves and high-pressure equipment.
• Recycle batteries properly.

Specifications

Specifications are subject to change without notice due to product improvements.

Parts Description

An exploded view diagram is available on page 10, illustrating the assembly of these parts.

How to Use

Battery Charging

Insert the charger plug into a suitable power outlet. The charging lamp will flash green, indicating standby mode. Insert the battery firmly into the charger. The charging lamp will turn solid red during charging. If an abnormality occurs with the inserted battery, the charging lamp will flash red and green alternately. When the battery is fully charged, the charging lamp will turn solid green. After charging, unplug the charger from the power outlet. Remove the battery by holding the charger firmly.

Refer to the charger's instruction manual for specific operating procedures and precautions.

Battery Installation/Removal

⚠️ Caution: When installing or removing the battery, ensure the safety switch is set to the locked position. Never pull the trigger.

1. Battery Installation: Insert the battery correctly into the housing until it clicks into place, ensuring it is securely attached. Improper installation may cause the battery to detach unexpectedly, leading to injury. Do not force or strike the battery when inserting.

2. Battery Removal: The battery is located below the tool's grip. Press the lock release buttons on both sides and slide the battery out.

Safety Switch Operation

1. Releasing the Safety Switch: Press the safety switch and move it to the unlocked position (away from the trigger). The tool can now be operated by pulling the trigger.

2. Locking the Safety Switch: Press the safety switch and move it to the locked position (towards the trigger). The trigger cannot be pulled in this position.

Forward/Reverse Switching Knob Operation

Turn the forward/reverse switching knob on the top of the tool to set the output direction to forward (clockwise) or reverse (counter-clockwise) for screwing or unscrewing components. ⚙️ Note: Always confirm the rotation direction before operation and ensure the tool has completely stopped before changing the direction. Changing direction while the tool is running can cause damage.

Attaching and Removing Accessories (Sockets)

Accessories include sockets and socket bits. ⚠️ Caution: Before operation, always set the safety switch to the locked position and remove the battery. Do not force the trigger.

1. Attaching a Socket: Insert the socket fully onto the tool's anvil until it clicks into place. Ensure the socket is securely fixed to the tool's anvil.

2. Removing a Socket: Pull the socket in the direction of the arrow to detach it from the anvil.

Bolt (Nut) Tightening and Loosening

⚠️ Caution: When tightening or loosening bolts (nuts), ensure the tool has completely stopped before attaching the socket to the bolt (nut).

Bolt (Nut) Tightening: Turn the forward/reverse switching knob to set the tool's output to clockwise. Place the socket onto the bolt head and apply light pressure to keep it seated. Slowly pull the trigger, gradually increasing the speed. Release the trigger once the bolt is securely tightened.

? Note: Ensure the bolt is perpendicular to the mounting hole.

Bolt (Nut) Loosening: Turn the forward/reverse switching knob to set the tool's output to counter-clockwise. Place the socket onto the bolt head and pull the trigger fully. Once the bolt is completely removed, slowly release the trigger.

Features

Work Light

? The white LED work light illuminates when the trigger is pulled, providing visibility in low-light conditions. The light flashes approximately twice per second when the battery is low and approximately five times per second when the tool is overheating.

Battery Level Indicator

The power indicator displays the current battery level when the trigger is pulled. The battery level is confirmed by the status of three green LED lamps:

• 3 lamps lit: 2/3 or more remaining
• 2 lamps lit: 1/3 or more remaining
• 1 lamp lit: Less than 1/3 remaining

If all three lamps flash 5 times and then turn off, the battery level is very low.

Overload Protection

If the tool is overloaded, the motor will stop. To restart, release the trigger to reset, then pull the trigger again.

Overheating Protection

Do not overload the tool. If the load is too high or the battery exceeds its maximum temperature (75°C), the electronic control system will stop the tool until it returns to a safe operating temperature.

Over-discharge Protection

The tool is equipped with a protection circuit to prevent over-discharge of the battery. When the battery level is critically low, this function will turn off the tool.

Battery Recycling

For environmental protection, please recycle batteries properly. Batteries contain lithium. Consult your local authorities or retailer for recycling information. Cover the terminals of used batteries with strong tape to prevent short circuits or leakage. Do not open or disassemble batteries.

Inspection and Maintenance

Inspection

The owner should inspect the tool periodically. Users should perform daily checks before use. Departments owning the tool should assign staff for regular inspections, at least annually. In areas with extreme temperature changes, high humidity, or harsh working conditions, inspections should be more frequent. Inspections should be completed before the rainy season. If the tool passes regular inspections, apply a "Passed" sticker in an appropriate location, clearly indicating the tool's number, inspection department/mark, inspector/mark, and date of issue.

Maintenance

To maintain the safety and reliability of the product, all repairs, and other maintenance or adjustments should be performed by an authorized retailer. Users and maintenance departments must not alter the original design parameters of the tool. Do not use substitute materials that are inferior to the original specifications or spare parts that do not conform to the original specifications.

Cleaning

Do not use water or chemical cleaning agents to clean the tool. Wipe the tool with a dry cloth.

Environmental Protection

Waste Disposal

Dispose of damaged tools, accessories, and packaging materials according to local regulations for recycling with minimal environmental impact.

Compatible Battery/Charger

Recommended ambient temperature range for operation and storage: 0°C - 45°C

Recommended ambient temperature range for charging: 5°C - 40°C

DONGCHENG continuously improves its batteries. Please check for service and the latest information.

Manufacturer Information

Imported and sold by: Buildy Co., Ltd.

Manufactured by: Jiangsu DONGCHENG M&E TOOLS CO.,LTD.