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Kenworth T680 Fleet Maintenance Checklist
Introduction
Regular maintenance is crucial for keeping your Kenworth T680 fleet operating at peak efficiency and maximizing return on investment. This comprehensive maintenance checklist is designed specifically for the Kenworth T680 model, one of the industry's leading long-haul trucks known for its aerodynamic design, fuel efficiency, and driver comfort features.
Following this structured maintenance program helps prevent costly breakdowns, extends vehicle lifespan, maintains optimal fuel efficiency, and ensures regulatory compliance. With the Kenworth T680's advanced technology systems and PACCAR MX engine, proper maintenance is essential to preserve the performance advantages that make this truck a leader in the transportation industry.
Vehicle Information
T680 Maintenance Best Practices
- Maintenance Records: Keep detailed digital maintenance records for each T680 in your fleet to track service history, identify recurring issues, and plan for preventive maintenance.
- Oil Analysis: Implement regular oil analysis for the PACCAR MX engines in your T680 fleet. This provides early warning of internal engine problems and can help extend oil change intervals when appropriate.
- Parts Inventory: Maintain an inventory of commonly needed parts specific to the T680 model to reduce downtime during maintenance.
- Driver Feedback: Create a formal process for drivers to report issues with their T680s, as they often notice subtle changes in vehicle performance before they become major problems.
Engine Maintenance
Fuel System Maintenance
Aftertreatment System
Cooling System
Air Intake System
Transmission & Driveline
Axles & Differentials
Wheels & Tires
Brake System
Steering & Suspension
Electrical System
HVAC System
Fifth Wheel & Coupling
Detailed Maintenance Procedures
Follow these structured procedures to ensure comprehensive maintenance of your Kenworth T680 fleet. These specific procedures are designed to address the unique requirements of the T680 model.
PACCAR MX Engine Oil Change
- Run engine to operating temperature, then shut down
- Remove oil drain plug and drain oil completely
- Replace oil filter using proper torque specifications
- Install drain plug with new gasket
- Fill with approved oil grade to proper level
- Start engine and check for leaks
DPF System Check
- Connect diagnostic tool and check DPF soot level
- Verify proper regeneration function
- Inspect DPF pressure sensors and connections
- Check exhaust piping for leaks or damage
- Verify proper EGR valve operation
Automated Transmission Service
- Connect diagnostic tool to verify no active fault codes
- Check and top off transmission fluid level
- Inspect for leaks around seals and gaskets
- Check shift selector operation
- Verify proper clutch actuation
- Test all gear selections under load
Air System Maintenance
- Drain all air tanks completely
- Check air dryer desiccant replacement interval
- Inspect governor cut-in/cut-out pressure
- Perform leak-down test (max 2 psi per minute)
- Verify low air pressure warning at 60-65 psi
- Test automatic spring brake application
Maintenance Progress
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Repair Notes & Recommendations
Maintenance Intervals
Following the manufacturer-recommended maintenance intervals for the Kenworth T680 helps maximize uptime and protect your investment. Adjust intervals based on operational conditions and duty cycle.
Every 15,000 Miles
- Change engine oil and filter (normal service)
- Lubricate chassis components
- Check all fluid levels
- Inspect belts and hoses
- Check tire inflation and condition
Every 30,000 Miles
- Replace fuel filters
- Check valve lash adjustment
- Inspect cooling system
- Lubricate driveline components
- Check transmission and axle oil levels
Every 60,000 Miles
- Change automatic transmission fluid
- Change axle lubricant
- Inspect wheel bearings
- Replace air dryer desiccant
- Check DPF ash accumulation level
Every 240,000 Miles
- Change coolant
- Overhaul water pump
- Inspect turbocharger
- Check EGR cooler and valve
- Clean/replace DPF as needed
Conclusion
Implementing this comprehensive Kenworth T680 Fleet Maintenance Checklist is essential for maximizing the performance, reliability, and longevity of your Kenworth T680 trucks. The T680's advanced technologies, including the fuel-efficient PACCAR MX engine and aerodynamic design features, require systematic maintenance to preserve their operational advantages.
For optimal maintenance management, consider implementing the FleetRabbit APP to streamline your T680 fleet maintenance program. The FleetRabbit platform provides digital documentation of all maintenance activities, automated service reminders based on mileage or time intervals, and comprehensive historical records for each vehicle. With the FleetRabbit software, fleet managers can easily monitor maintenance compliance, track parts inventory, and analyze maintenance costs across their entire T680 fleet.
Make this Kenworth T680 Fleet Maintenance Checklist an integral part of your fleet management system with the FleetRabbit software's comprehensive maintenance solution. Whether for warranty compliance, cost control, or maximizing uptime, this digital approach significantly improves maintenance consistency and documentation while reducing administrative burden on technicians and fleet managers.
Access the digital version of this checklist through the FleetRabbit APP
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