General Information 00 M1 Maintenance Interval Operations Table: 00-07 M1 Maintenance Interval Operations for Service Schedules I, II, and III Maintenance Operation Number Operation Description Check 42–05 Wedge Brake Checking 42–11 Bendix Air Dryer or Anchorlok Aftercooler Inspecting (Bendix AD–2, AD–4, AD–9, or Anchorlok) 42–14 CR Brakemaster Air Dryer Cleaning (Model 62 or 68) 42–22 Midland Quick Release and Flipper Valve Checking 42–24 Brake Inspection 47–02 Fuel Tank Band Nut Tightening, FLA, FLB, and FLD 60–03 Cab Latch Checking, FLA/FLB 49–01 Exhaust System Inspecting Heavy-Duty Trucks Maintenance Manual, October 2009 00/14