Maintenance Operations for Groups 00 through 88
Maintenance
Operation No.
Title of Maintenance Operation
Maintenance Intervals
IM
M1
M2
M3
M4
M5
LNG Fuel System Inspecting
•
•
•
•
•
LNG Vacuum Integrity Testing
•
•
•
CNG Fuel System Inspecting
•
•
•
•
CNG High-Pressure Fuel Filter Element Replacing
•
•
•
•
•
CNG Fuel Cylinder Inspecting
•
•
•
Exhaust System Inspecting (Noise Emission Control)
•
•
•
•
CAT CGI Bellows and Piping Inspection
•
•
•
•
•
CAT CGI Bellows Replacement
•
Mirror Folding Check
•
•
Aerodynamic Component Inspection
•
•
•
•
•
Door Seals Lubricating
•
•
•
•
•
•
Air Conditioner Inspecting
•
•
•
•
•
•
HVAC Air Filter Replacing
**
•
•
•
Hood Rear Support Lubrication
•
•
•
•
•
*
Change petroleum-based lubricants at M2 (including M3, M4, and M5). Change synthetic lubricants at M5 only.
†
For Detroit axles, complete this procedure once a year or at the following applicable interval, whichever comes first: every 5000 miles (8000 km) for Schedule
I vehicles; every 25,000 miles (40 000 km) for Schedule II vehicles; or every 100,000 miles (161 000 km) for Schedule III vehicles.
‡
Schedule II and Schedule III vehicles only.
§
If equipped with an oil-coalescing desiccant cartridge, replace the cartridge once a year, regardless of mileage. Otherwise use the M5 maintenance interval.
¶
Complete this procedure every 25,000 miles (40 225 km), 3 months, or 500 operating hours, whichever comes first.
**
Replace the HVAC air filter at the recommended interval or every six months.
Table 4, Maintenance Operations for Groups 00 through 88
General Information
00
Overview of Maintenance Operations: 00–05
Business Class M2 Maintenance Manual, November 2016
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