Maintenance Schedule and Lubrication Preventive Maintenance
– 128 – Y53-6008
Medium Duty (R10/06)
King Pin Wear
Steer Axle Wheel Bearing - End Play Adjustment
and Inspection
350,000 Miles With LMS Outer Ends
• No Leak – No Service
Front Hub Lubricant Level
Spring Leaves
U–Bolt and Suspension Fastener Torque
Tighten U-bolts after the first 500 miles
(800 km). Rear suspension fasteners:
retorque after first 2,000 miles (3218 km).
Leaks:
Coolant
Engine Oil
Power Steering
Fuel
Transmission
Axles
Inner and Outer Hub Seals
Engine and Transmission Mounts
Drivelines – U–joints and Slip Yokes
Rear Axle Lubricant Level
Rear Axle Lubricant Flush & Refill
C4 At 250,000 Miles
Rear Axle Breathers – Clear
Tractor Protection Valve Breakaway Test
Brake Chamber Mounting Bolt Torque
Brake Hoses for Cracks and Chafing
Adjust Brakes
Table 3 Maintenance Schedule
INTERVAL COMMENTS
OPERATION \ FREQUENCY
7,500 mi
12,000 km
15,000 mi
24,000 km
60,000 mi
96,000 km
