Introduction
This manual provides essential information for the proper installation, operation, and maintenance of the JCB Transmission Gear Shift Switch, part numbers 701/37702 and 701/26402. This switch is designed for use in JCB 3CX and 4CX backhoe loaders, and is also compatible with certain JCB forklifts (e.g., 2006 models). Adhering to these instructions will help ensure the longevity and optimal performance of the component.
Video: Overview of the JCB Transmission Gear Shift Switch (701/37702).
Setup and Installation
Installation of the transmission gear shift switch should only be performed by qualified personnel with experience in heavy machinery electrical systems. Always refer to the specific service manual for your JCB 3CX, 4CX, or forklift model for detailed wiring diagrams and installation procedures.
General Installation Guidelines:
- Safety First: Disconnect the vehicle's battery before beginning any electrical work to prevent accidental activation or electrical shock.
- Locate Mounting Position: Identify the correct mounting location for the column switch, typically on the steering column.
- Secure Mounting: Ensure the switch is securely fastened using appropriate hardware. Refer to the vehicle's manual for torque specifications.
- Electrical Connections: Carefully connect the wiring harness to the corresponding vehicle connectors. Ensure all connections are firm and properly seated. The switch features a multi-pin connector for integration into the vehicle's electrical system.
- Functionality Test: After installation, reconnect the battery and test all functions of the switch (gear selection, wipers, lights, etc.) before operating the vehicle.
Product Views for Reference:






Operating Instructions
The transmission gear shift switch controls the direction of travel (Forward, Neutral, Reverse) and may also integrate controls for other vehicle functions such as wipers and lights, as indicated by the symbols on the handle.
Basic Operation:
- Gear Selection: Move the lever to the desired position for Forward (F), Neutral (N), or Reverse (R). Ensure the vehicle is stationary before changing direction.
- Wiper Control: Rotate or push the handle according to the symbols to activate and adjust the speed of the windshield wipers.
- Light Control: Rotate or push the handle according to the symbols to activate headlights, parking lights, or turn signals.
Always consult your vehicle's operator manual for specific instructions on how to use all functions of the column switch, as features may vary by JCB model.
Maintenance
Regular maintenance helps ensure the reliable operation and extends the lifespan of your transmission gear shift switch.
Recommended Maintenance:
- Visual Inspection: Periodically inspect the switch for any signs of physical damage, wear, or loose connections. Check the wiring harness for fraying or exposed wires.
- Cleaning: Keep the switch and surrounding area clean and free from dirt, dust, and debris. Use a soft, dry cloth for cleaning. Avoid using harsh chemicals or abrasive materials that could damage the plastic or electrical components.
- Connection Check: Ensure all electrical connectors remain securely attached. Loose connections can lead to intermittent operation or failure.
If any issues are observed, refer to the Troubleshooting section or consult a qualified technician.
Troubleshooting
If you experience problems with your transmission gear shift switch, consider the following common issues and solutions:
Common Issues:
- No Response from Switch:
- Check all electrical connections to ensure they are secure.
- Verify that the vehicle's battery is properly charged and connected.
- Inspect the vehicle's fuses related to the transmission and other controlled functions.
- Intermittent Functionality:
- Loose wiring connections are a common cause of intermittent issues. Re-seat all connectors.
- Check for any debris or foreign objects obstructing the switch mechanism.
- Physical Damage:
- If the switch housing or lever is cracked or broken, it may need replacement.
For complex issues or if troubleshooting steps do not resolve the problem, it is recommended to consult a qualified heavy machinery technician or refer to your vehicle's comprehensive service manual.
Specifications
| Attribute | Detail |
|---|---|
| Part Name | Switch Joystick (Transmission Gear Shift Switch) |
| Part Numbers | 701/37702, 701/26402 |
| Application | JCB 3CX, JCB 4CX Backhoe Loaders, JCB Forklifts (e.g., 2006 models) |
| Material | Special metals, alloys, cast iron |
| Quality Standard | ISO9001 |
| Performance | Equivalent to original equipment |
| Origin | Mainland China |
| Warranty | 1 year under normal use and maintenance |
Compatible Part Numbers (Column Switches):

Figure: Various Column Switch Models and Brands

Figure: Table of Compatible Item Numbers
User Tips
- Installation Ease: While professional installation is always recommended for safety and proper function, some users have noted that the switch is relatively straightforward to install. However, always consult your vehicle's service manual.
- Material Quality: Feedback indicates the material quality is robust, suggesting good durability for demanding heavy machinery environments.
- Compatibility Check: Before purchasing, always double-check the part numbers (701/37702 or 701/26402) against your specific JCB model to ensure full compatibility. The provided tables and images can assist in visual confirmation.
Warranty and Support
This transmission gear shift switch comes with a 1-year warranty under normal use and maintenance conditions. For warranty claims, technical assistance, or further support, please contact the manufacturer or seller directly.
For any questions regarding compatibility or technical details, it is recommended to reach out to the supplier with your specific JCB model and year.





