freightliner MC - Axle Lubricant Changing and Magnetic Plug Cleaning

Detroit Drive Axle Lubricants
*
IMPORTANT: Lubricant used in Detroit rear axles must
meet Mercedes-Benz specification 235.20 (mineral) or
235.8 (synthetic). Mobil Delvac
™
Gear Oil A 80W-90 and
Mobilube
™
HD-A Plus 80W-90 meet specification 235.20.
Mobil Delvac 1 Gear Oil 75W-90 and Mobilube 1 SHC
75W-90 meet specification 235.8. For more product
information, see http://bevo.mercedes-benz.com.
Type Ambient Temperature
SAE
Viscosity
Grade
Mineral Oil –15°F (–26.1°C) and up
†
80W–90
Detroit Drive Axle Lubricants
*
IMPORTANT: Lubricant used in Detroit rear axles must
meet Mercedes-Benz specification 235.20 (mineral) or
235.8 (synthetic). Mobil Delvac
™
Gear Oil A 80W-90 and
Mobilube
™
HD-A Plus 80W-90 meet specification 235.20.
Mobil Delvac 1 Gear Oil 75W-90 and Mobilube 1 SHC
75W-90 meet specification 235.8. For more product
information, see http://bevo.mercedes-benz.com.
Type Ambient Temperature
SAE
Viscosity
Grade
Synthetic Oil –40°F (–40°C) and up
†
75W–90
*
Detroit rear axles do not require the use of friction modifiers.
†
There is no upper limit on the ambient temperature, but axle sump tem-
perature must never exceed 250°F (121°C).
Table 1, Detroit Drive Axle Lubricants
Drive Axle Recommended Lubricant, Meritor Axles
Recommended
Lubricant Type
Ambient Temperature
Lubricant
SAE
Viscosity
Grade
Hypoid Gear Oil
API Service
Classification
GL–5
10°F (–12.2°C) and up
*
85W–140
–15°F (–26.1°C) and up
*
80W–90
–40°F (–40°C) and up
*
75W–90
–40°F (–40°C) to 35°F (2°C) 75W
–40°F (–40°C) and up
*
75W–140
Synthetic Gear
Oil
–40°F (–40°C) and up
*
75W–90
–40°F (–40°C) and up
*
75W–140
*
There is no upper limit on the ambient temperature, but axle sump tem-
perature must never exceed 250°F (121°C).
Table 2, Drive Axle Recommended Lubricant, Meritor
Axles
35–02 Axle Lubricant Changing
and Magnetic Plug
Cleaning
A regular schedule for changing the axle lubricant in
a particular vehicle and operation can be accurately
determined by analyzing oil samples taken from the
axle at specified intervals or mileages. Lubricant sup-
pliers frequently make their laboratory facilities avail-
able for determining the useful life of their product
under actual service conditions. The final schedule
that is recommended may, for economic reasons, be
12/05/2003
f350436
1
2
1. Axle Housing Breather
2. Oil Fill Plug
Fig. 2, Component Locations, Meritor Axles
f350061a10/05/2016
A
B
A. Correct (lube level at bottom of fill hole)
B. Incorrect (lube level below fill hole)
Fig. 3, Checking Axle Lubricant Level
Rear Axle35
Recreational Vehicle Chassis Maintenance Manual, June 201535/2