Table 3 lists all maintenance operations that are to
be performed at the M1 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.
IMPORTANT: After performing all operations listed in
this table, perform all daily, weekly, and monthly
maintenance operations given in Chapter 21, "Pretrip
and Post-Trip Inspections and Maintenance", of the
108SD and 114SD Driver’s Manual.
M1 Maintenance Interval Operations
Number Title
25-01 Eaton Fuller Clutch Release Bearing Lubrication
25-02 Eaton Fuller Clutch Release Cross-Shaft Lubrication
25-03 Fluid Level Check, Hydraulic Clutch Control
25-05 Clutch Adjustment, Manually Adjusted Clutches
26-01 Transmission Fluid Level Check
26-03 Allison and Eaton Fuller Transmission Breather Check
31-02 Fifth Wheel Inspection
31-03 Fifth Wheel Lubrication
31-04 Trailer Electrical Connector Protection
32-01 Suspension Inspection
32-02 Suspension Lubrication
33-01 Knuckle Pin Lubrication
*
33-02 Tie Rod Inspection
33-03 Tie Rod Lubrication
*
33-06 Steer Axle Hub Cap Vent Plug Inspection
35-01 Axle Lubricant Level Check
35-02 Axle Breather Check
40-02 Tire Check
41-01 Driveline Inspection
41-02 Driveline Lubrication
†
42-01 Air Brake System Valve Inspection
42-02 Bendix Air Dryer Desiccant Replacement
‡
42-05 Brake Inspection
42-06 Slack Adjuster Lubrication
42-10 WABCO System Saver Air Dryer Desiccant Cartridge Replacement
‡
42-11 Versajust Slack Adjuster Inspection and Lubrication
§
42-12 Bendix Automatic Drain Valve Operating and Leakage Tests
¶
46-03 Power Steering Fluid Level Inspection
46-05 Drag Link Lubrication
47-04 LNG Fuel System Inspection
47-07 CNG High-Pressure Fuel Filter Element Replacement
**
General Information00
00–03 M1 Maintenance Interval Operations
108SD and 114SD Maintenance Manual, April 202100/4
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