955L Drive Sprocket Removal Guide

[MikePhua]

The drive sprocket is a critical component in the 955L track loader, responsible for transferring power to the track system, ensuring the machine operates smoothly. Over time, the drive sprocket may experience wear, damage, or looseness, requiring removal and replacement. Proper removal of the drive sprocket not only ensures the machine’s optimal performance but also enhances efficiency and extends its lifespan.
Preparation Before Removing the Drive Sprocket

1. Ensure Safety
   Before starting the removal process, make sure the equipment is powered off and the system is depressurized. Wear appropriate personal protective equipment (PPE), such as gloves and safety goggles, to ensure safety during the procedure.
   
2. Clean the Equipment
   Prior to removing the drive sprocket, clean the surrounding area to prevent dirt, debris, or contaminants from entering the mechanical components. Keeping the work area clean during the removal process will help reduce the risk of accidents.
   
3. Inspect the Equipment
   Ensure there are no other issues with the drive sprocket. It’s helpful to inspect the fitment between the sprocket and the tracks, checking for any looseness, cracks, or other signs of wear. If any problems are found, address them before proceeding with the sprocket removal.
   

Steps for Removing the Drive Sprocket

1. Unload the Track System
   Before removing the drive sprocket, unload the track system to ensure the equipment is stable. Use a jack to lift the machine slightly, ensuring proper support for the sprocket area.
   
2. Remove Protective Components
   Before removing the drive sprocket, remove any protective components that may be covering or obstructing access to the sprocket, such as covers or shields. These parts are usually fastened with bolts or pins, which can be removed using the appropriate tools.
   
3. Loosen the Sprocket’s Fastening Bolts
   The drive sprocket is typically held in place by several large bolts. Use a wrench or impact tool to loosen and remove these bolts. Be cautious not to apply excessive force to prevent damaging the bolts or other surrounding components.
   
4. Remove the Drive Sprocket
   After loosening the fastening bolts, carefully remove the drive sprocket. If the sprocket is stuck due to prolonged use, use appropriate removal tools like a pry bar or hydraulic puller to help dislodge the sprocket. Ensure you use the right tools to avoid damaging the sprocket or bearing surfaces.
   
5. Inspect the Drive Sprocket and Related Parts
   Once removed, inspect the drive sprocket for wear, cracks, or deformation. If the sprocket is severely damaged, it should be replaced. Also, check the bearings, pins, and other components that interact with the sprocket. If any of these parts are worn or damaged, they should be replaced as well.
   

Important Considerations During Removal

1. Avoid Excessive Force
   During removal, avoid using excessive force. Since the sprocket and bearings may be corroded or stuck due to prolonged use, applying too much force may damage surrounding parts. Using the right tools and techniques is essential for a smooth and safe removal process.
   
2. Keep Parts Organized
   As you remove components, keep all parts organized and labeled in the order they were removed. This will help during reassembly and prevent the loss of any important parts.
   
3. Check the Surrounding Environment
   Ensure the surrounding area is secure while removing the sprocket. Avoid dropping tools or parts, and keep the work area clean and organized to increase efficiency and reduce the risk of accidents.
   

Conclusion
Removing the drive sprocket is an important maintenance procedure for the 955L track loader. By following the correct steps and using the proper tools, you can effectively avoid damage and ensure the sprocket is removed safely. Regular inspection of the sprocket’s wear and timely replacement can improve machine performance and extend its service life. Safety and proper tool use are critical during the removal process.