Seized Motor on Grove RT60S: Troubleshooting and Repair Advice

[MikePhua]

Problem Description
A user reported that the motor on their Grove RT60S crane had seized, rendering the machine inoperable. They sought advice on diagnosing the cause and possible repair solutions.
Possible Causes
Community members suggested several reasons for motor seizure, including lack of lubrication, overheating, contamination of internal components, or mechanical failure such as bearing damage. Electrical issues causing the motor to stall were also considered.
Inspection Steps
Users recommended carefully disassembling the motor to check for signs of wear, corrosion, or damage. Checking the lubrication system, seals, and filters was advised to ensure proper oil flow. Verifying electrical connections and testing motor windings could help identify electrical faults.
Repair and Replacement Options
Some members shared experiences of repairing seized motors by cleaning, replacing bearings, and re-lubricating components. Others suggested that depending on the severity, complete motor replacement might be more practical and cost-effective.
Preventive Maintenance Tips
Advice included following recommended maintenance schedules, monitoring oil levels and quality, and avoiding excessive loads that could cause overheating. Regular inspections were emphasized to catch early signs of trouble.
Conclusion
A seized motor on the Grove RT60S requires thorough diagnosis to determine the cause. Proper maintenance and timely repairs are crucial to prevent recurrence, while replacement may be necessary if damage is extensive.