M1 Maintenance Operations
Maintenance
Operation No.
Title of Maintenance Operation
Bosch Hydraulic Brake System Inspection
Brake Lines and Fittings Inspection, Hydraulic Brakes
Brake Inspection
Hydro-Max
™
Brake System Inspection
WABCO System Saver Air Dryer Desiccant Cartridge Replacement
†
Versajust Slack Adjuster Inspection and Lubrication
‡
LNG Fuel System Inspecting
CNG High-Pressure Fuel Filter Element
§
CAT CGI Bellows and Piping Inspection
Aerodynamic Component Inspection
Air Conditioner Inspecting
*
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.
§
M1 maintenance interval should be used as a general guideline; the actual frequency of filter element replace-
ment will vary depending on cleanliness of the fuel station system.
Table 6, M1 Maintenance Operations
General Information
00
M1 Maintenance Operations: 00–07
Business Class M2 Maintenance Manual, November 2016
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