Troubleshooting Grove 8460 GE and Grove TMS 700 E

[MikePhua]

The Grove 8460 GE and Grove TMS 700 E are two robust crane models from the well-known manufacturer, Grove. They are widely used for heavy lifting tasks in construction, mining, and other industries where heavy-duty cranes are required. However, like any heavy equipment, these cranes can experience issues during their operation. This guide delves into some of the common problems faced by operators of the Grove 8460 GE and TMS 700 E, and offers insights into troubleshooting and fixing these issues.
Overview of the Grove 8460 GE and TMS 700 E Cranes
Both the Grove 8460 GE and the Grove TMS 700 E are part of Grove’s heavy-duty crane lineup, designed for high-capacity lifting and long reach. These models are equipped with powerful engines, advanced hydraulic systems, and an array of safety features. The 8460 GE model is known for its telescoping boom, making it ideal for lifting at various heights, while the TMS 700 E is a rough-terrain crane designed to operate efficiently on uneven ground.
Both cranes are popular in the construction and oil & gas industries due to their reliability and high lifting capacities. However, they can experience certain technical challenges, which operators must be aware of in order to keep their machines in top working condition.
Common Problems and Troubleshooting for the Grove 8460 GE and TMS 700 E

1. Hydraulic System Issues
   • Problem: One of the most common issues reported with both the Grove 8460 GE and TMS 700 E cranes is hydraulic system failure. This may present itself as a loss of power when lifting heavy loads, slow movements in the boom or hoist, or a complete failure of the hydraulic system.
     
   • Possible Causes:
     • Low hydraulic fluid levels
       
     • Air in the hydraulic system
       
     • Worn-out hydraulic seals or hoses
       
     • Faulty hydraulic pump or valve
       
   • Solutions:
     • Regularly check and top up hydraulic fluid levels.
       
     • Bleed the hydraulic system to remove air.
       
     • Inspect hydraulic hoses and seals for wear and replace them if necessary.
       
     • If the pump or valve is faulty, consider replacing the damaged parts with manufacturer-recommended components.
       
2. Electrical System Malfunctions
   • Problem: Electrical issues are another common concern. Operators have reported problems with the crane’s electrical system, including failure of warning lights, malfunctioning gauges, or the crane not starting.
     
   • Possible Causes:
     • Battery failure or poor connection
       
     • Faulty wiring or blown fuses
       
     • Issues with the alternator or starter motor
       
   • Solutions:
     • Check the battery for charge and ensure all connections are clean and secure.
       
     • Inspect the electrical wiring for signs of damage, corrosion, or wear, and replace as necessary.
       
     • Check the alternator and starter motor for faults. Replace any faulty components to restore proper function.
       
3. Boom and Hoist System Problems
   • Problem: Another frequent issue is the malfunction of the boom or hoist system. This can manifest as slow operation, jerky movements, or complete failure to extend or retract the boom.
     
   • Possible Causes:
     • Insufficient hydraulic fluid
       
     • Worn-out or damaged cables or pulleys
       
     • Misalignment or mechanical failure in the boom extension system
       
   • Solutions:
     • Check hydraulic fluid levels and ensure the system is operating at the correct pressure.
       
     • Inspect the cables, pulleys, and mechanical components of the boom for damage or wear.
       
     • Align and lubricate the boom system if it is misaligned or operating sluggishly.
       
     • If any components are damaged beyond repair, they should be replaced.
       
4. Transmission and Drive Train Issues
   • Problem: Operators of the Grove TMS 700 E have reported issues with the transmission, particularly difficulty shifting gears or slipping gears during operation.
     
   • Possible Causes:
     • Low transmission fluid levels
       
     • Worn-out transmission components
       
     • Faulty gear shifters or linkages
       
   • Solutions:
     • Regularly check transmission fluid levels and replace if low or dirty.
       
     • Inspect the transmission components for wear and replace them if necessary.
       
     • Ensure the gear shifters and linkages are functioning smoothly and replace any damaged parts.
       
5. Overheating and Engine Issues
   • Problem: Overheating is another potential issue, especially if the crane is being used for extended periods under heavy loads. Overheating can lead to engine failure if not addressed.
     
   • Possible Causes:
     • Low coolant levels or damaged radiator
       
     • Clogged air filters or radiator fins
       
     • Malfunctioning thermostat or water pump
       
   • Solutions:
     • Regularly check coolant levels and inspect the radiator for blockages. Clean or replace any clogged filters or damaged radiator fins.
       
     • Inspect the water pump and thermostat to ensure proper operation.
       
     • If the engine continues to overheat, further investigation may be needed to identify underlying issues.
       
6. Stability and Leveling Problems
   • Problem: The stability of the crane, especially on uneven terrain, is crucial. The Grove TMS 700 E is designed for rough terrain, but issues with the leveling system or outriggers can lead to instability.
     
   • Possible Causes:
     • Uneven deployment of outriggers
       
     • Malfunctioning leveling sensors or control valves
       
     • Faulty hydraulic stabilizers
       
   • Solutions:
     • Ensure that outriggers are deployed evenly and properly before operating the crane.
       
     • Inspect the leveling system, including sensors and control valves, for any signs of malfunction or wear. Repair or replace faulty parts as needed.
       
     • Check hydraulic stabilizers and adjust or replace them if required to maintain proper crane stability.
       

Maintenance Tips for Grove 8460 GE and TMS 700 E
To avoid the common issues mentioned above, it’s important to perform regular maintenance on the Grove 8460 GE and TMS 700 E cranes. Here are some helpful maintenance tips:

1. Regular Fluid Checks: Regularly check hydraulic fluid, engine oil, and coolant levels. Keeping these at optimal levels is crucial for smooth operation.
   
2. Inspect Hydraulic Hoses and Seals: Inspect hydraulic hoses and seals for wear and tear to prevent leaks and system failures.
   
3. Clean Filters: Clean or replace filters, especially the air and fuel filters, to ensure the crane's engine operates efficiently.
   
4. Check Battery and Electrical Components: Inspect the battery and electrical wiring for corrosion or damage. Clean and tighten connections as needed.
   
5. Monitor Load Handling: Always operate the crane within its load capacity to avoid undue stress on the machine, which can lead to premature wear.
   

Conclusion
The Grove 8460 GE and TMS 700 E cranes are powerful machines that are designed for heavy-duty lifting and rugged terrain operations. However, like any complex piece of equipment, they are susceptible to certain mechanical and electrical issues. By understanding common problems and performing regular maintenance, operators can ensure that their cranes continue to operate at peak efficiency. Troubleshooting issues quickly and effectively can minimize downtime and help maintain the crane's reliability over the long term.