Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Gisam Cordless Impact Wrench, model BS-1. Please read this manual thoroughly before using the tool to ensure proper handling and to prevent injury or damage.
Important Safety Instructions
Always follow basic safety precautions when using electric tools to reduce the risk of fire, electric shock, and personal injury.
General Safety Warnings
- Work Area Safety: Keep the work area clean and well-lit. Cluttered or dark areas invite accidents. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
- Electrical Safety: Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges, and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
- Personal Safety: Always wear eye protection. Use hearing protection when operating the tool for extended periods. Dress properly; do not wear loose clothing or jewelry. Keep hair, clothing, and gloves away from moving parts.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. Disconnect the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools.
- Battery Pack Use and Care: Recharge only with the charger specified by the manufacturer. Do not use battery packs with any other power tools. When the battery pack is not in use, keep it away from other metal objects.
Product Overview
Familiarize yourself with the components of your Gisam Cordless Impact Wrench BS-1.
Figure 1: Main components of the Gisam Cordless Impact Wrench. Key parts include the impact socket, square chuck, brushless motor, forward & reverse switch, LED light, variable speed switch, battery release button, smart control panel, and soft rubberized handle.
- Impact Socket: For attaching to fasteners.
- Square Chuck: 1/2 inch drive for socket attachment.
- Brushless Motor: Provides efficient power and extended tool life.
- Forward & Reverse Switch: Controls the direction of rotation.
- LED Light: Illuminates the work area.
- Variable Speed Switch: Adjusts rotation speed based on trigger pressure.
- Battery Release Button: For detaching the battery pack.
- Smart Control Panel: Displays speed and battery power.
- Soft Rubberized Handle: For comfortable grip and reduced vibration.
Setup
1. Charging the Battery
Before first use, fully charge the battery pack. Use only the Gisam quick charger provided with your tool.
- Connect the charger to a standard power outlet.
- Slide the battery pack onto the charger until it clicks into place.
- The charger indicator light will show the charging status. Refer to the charger manual for specific light indications.
- Once fully charged, disconnect the battery from the charger.
Figure 2: Gisam 8000mAh Lithium Battery with internal protection features including overcurrent, overpressure, overheating protection, and fast charging capability.
2. Installing/Removing the Battery Pack
- To Install: Align the battery pack with the base of the tool handle and slide it in until it locks securely.
- To Remove: Press the battery release button (see Figure 1) and slide the battery pack out.
3. Attaching/Removing Sockets
- To Attach: Push the desired 1/2 inch square drive impact socket firmly onto the square chuck until it snaps into place.
- To Remove: Pull the socket off the square chuck.
Operating Instructions
1. Forward and Reverse Operation
The forward/reverse switch controls the direction of rotation. Ensure the tool is off before changing direction.
Figure 3: Forward and Reverse Switch. Pushing the switch to the right engages forward rotation (tighten), and pushing it to the left engages reverse rotation (loosen). Centered position locks the trigger.
- Forward (Tighten): Push the switch to the right.
- Reverse (Loosen): Push the switch to the left.
- Lock: Center the switch to prevent accidental starting.
2. Variable Speed Control
The tool features a variable speed trigger. The harder you pull the trigger, the higher the RPM (Revolutions Per Minute).
Figure 4: Stepless Speed Control. The tool offers different speed ranges: H (0-2370 RPM) for engineering/industrial use, M (0-1990 RPM) for tire disassembly, and L (0-1520 RPM) for home improvement tasks.
3. Smart Control Panel and LED Light
The smart control panel displays the current speed setting and battery charge level. The integrated LED light automatically illuminates the work area when the trigger is pressed.
Figure 5: Bright LED Light. The auto-open design of the LED light ensures visibility in dark working conditions.
Maintenance
Cleaning
- Keep the tool's ventilation openings clean to prevent overheating.
- Use a soft, damp cloth to clean the exterior of the tool. Do not use harsh chemicals or abrasive cleaners.
- Never immerse the tool or battery in water or any other liquid.
Battery Care
- Store battery packs in a cool, dry place away from direct sunlight and extreme temperatures.
- Do not store battery packs in a discharged state for extended periods. Recharge them periodically.
- If the battery pack is damaged, do not attempt to repair it. Contact customer support for replacement.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start. | Battery not installed correctly or discharged. Forward/reverse switch in lock position. | Ensure battery is fully charged and properly seated. Move forward/reverse switch out of the center (lock) position. |
| Reduced power or performance. | Low battery charge. Incorrect speed setting for the task. | Recharge the battery. Adjust the speed setting using the variable speed trigger. |
| Tool overheats. | Blocked ventilation openings. Prolonged heavy use. | Clean ventilation openings. Allow the tool to cool down before continuing use. |
| Socket does not attach securely. | Incorrect socket size or type. Debris in the chuck. | Ensure using a 1/2 inch square drive impact socket. Clean the chuck area. |
Specifications
| Brand: | Gisam |
| Model Number: | BS-1 |
| Head Style: | Square Drive |
| Included Components: | Impact Wrench |
| Battery Capacity: | 8000mAh (2x4000mAh) |
| Max Torque: | 627.4 FT-lbs (850 Nm) |
| Motor Type: | Brushless |
| Speed (High): | 0-2370 RPM |
| Speed (Medium): | 0-1990 RPM |
| Speed (Low): | 0-1520 RPM |
Warranty and Support
Gisam products are covered by a 1-year after-sales service. If you encounter any issues or have questions regarding your Gisam Cordless Impact Wrench BS-1, please contact Gisam customer service.
You can typically reach customer support via the "Contact Seller" option on your order page. Gisam aims to reply within 12 hours on working days.