Table 4 lists all maintenance operations that are to
be performed at the M2 maintenance interval. Main-
tenance operation numbers are reference numbers
used to help you find detailed instructions in this
manual on the maintenance operations to be per-
formed. Perform all M1 maintenance interval opera-
tions (see Table 3) at the M2 maintenance interval.
M2 Maintenance Interval Operations
Number Title
00-03 Perform All M1 Maintenance Interval Operations
13-01 Air Compressor Inspection
20-01 Radiator Cap Inspection
20-03 Fan Drive Check (Noise Emission Control)
26-02 Eaton Fuller Transmission Fluid Change, and Magnetic Plug Cleaning
41-02 Driveline Lubrication
*
42-03 Governor Check
42-04 Air Dryer Check
42-07 Meritor Camshaft Bracket Lubrication
46-04 Power Steering Gear Lubrication
47-02 Fuel/Water Separator Element Check and Replacement
47-03 Fuel Filter Replacement
47-06 CNG Fuel System Inspection
47-08 CNG Fuel Cylinder Inspection
†
49-01 Exhaust System Inspection (Noise Emission Control)
*
For driveline lubrication, the M2 maintenance interval is for Meritor drivelines only; for Dana Spicer drivelines
see the M1 maintenance interval.
†
The fuel cylinder should be inspected every year or 100,000 miles (160 900 km), whichever comes first.
Table 4, M2 Maintenance Interval Operations
General Information00
00–04 M2 Maintenance Interval Operations
108SD and 114SD Maintenance Manual, April 202100/6
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