The M1 Maintenance Interval Operations tables list
all maintenance operations that are to be performed
at the M1 maintenance interval. Maintenance opera-
tion numbers are reference numbers used to help
you find detailed instructions in this manual on the
maintenance operations to be performed.
Maintenance
Operation Number
Operation Description Check
00–04 Lubrication and Fluid Level Check (includes the following):
• Eaton Fuller Clutch Release Bearing Lubrication
• Fifth Wheel Lubrication
• Suspension Lubrication
• Knuckle Pin Lubrication, Dana Spicer Axles
• Tie Rod Lubrication, Dana Spicer Axles
• Driveline Lubrication
• Dana Spicer Camshaft Bracket Lubrication
• Dana Spicer, Haldex, and Gunite Slack Adjuster Lubrication
• Cab Tilt Pump Reservoir Fluid Level and System Check
20–03 Fan Clutch Check (noise emission control)
31–01 Fifth Wheel Inspection
41–01 Driveline Inspection
42–11 Brake Inspection
49–01 Exhaust System Inspection (noise emission control)
Table 10, M1 Maintenance Interval Operations for Service Schedules I, II, and III
Maintenance
Operation Number
Operation Description Check
20–03 Fan Clutch Check (noise emission control)
31–01 Fifth Wheel Inspection
31–02 Fifth Wheel Lubrication
42–11 Brake Inspection
60–02 Cab Tilt Pump Reservoir Fluid Level and System Check
49–01 Exhaust System Inspection (noise emission control)
Table 11, M1 Maintenance Interval Operations for Service Schedule IV
General Information00
M1 Maintenance Interval Operations: 00–06
Century Class Trucks Maintenance Manual, January 200700/10