CCU 001638.16 – Hydraulic Oil Temperature Hot
CCU 001638.16 (CCU 1638.16)
Code: 001638.16
Shortcode: 1638.16
Description:
This fault code indicates that the hydraulic oil temperature sensor has detected oil temperatures higher than normal operating levels, but not yet reaching a critically hot threshold. This situation can still adversely affect system efficiency and increase wear on hydraulic components.
Reaction:
The function of the hydraulic system is degraded, limiting some operations to prevent damage due to elevated temperatures.
Recommendations:
- Check Hydraulic Oil Level: Verify that the hydraulic oil is at the proper level and top up if necessary. Low oil levels can lead to higher operating temperatures.
- Inspect Transmission Components: If the issue arises predominantly during transport speeds, inspect the transmission suction screen for clogging and the transmission scavenge pump for any damage or wear.
- Evaluate Cooling System: Ensure that the hydraulic system’s cooling components are functioning correctly and efficiently.
- System Monitoring: Monitor the hydraulic system during operation to identify potential causes of increased temperature, such as excessive load or insufficient cooling.
- Reset and Test: After performing necessary maintenance, reset the CCU and test the hydraulic system to ensure temperatures remain within normal ranges during operation.
Note:
Regular maintenance and monitoring of hydraulic oil levels and cooling systems are crucial to maintaining optimal temperatures and preventing overheating.