Meritor PreSet - Semi-Fluid Lubricant (Trailer Hubs Only)

2 Maintenance
4
Meritor Maintenance Manual MM-0637 (Revised 07-12)
Oil Contamination
Allow any air in the oil to escape prior to inspection. Visually inspect
the lubricant for discoloration. Under normal conditions, the oil will
darken slightly. A white or milky appearance indicates water
contamination. If the inspection indicates contamination, service the
wheel hub. Do not mix oil types. If you need to add oil, you must use
the same type of oil as supplied or used by the original equipment
manufacturer.
Semi-Fluid Lubricant (Trailer Hubs Only)
Do not mix different types of grease. Only use lubricants approved
by the original equipment manufacturer (OEM).
Table A: TP and TN Series Trailer Axles Equipped with Conventional Hub Assemblies or PreSet

by Meritor Hub Assemblies
Action Interval
Inspect the hub assembly for leakage and contaminated lubricant. Every 12 months or 100,000 miles (160 000 km), whichever comes
first.
Service wheel hubs. Every 5 years or 500,000 miles (800 000 km), whichever comes
first.
Perform preventive maintenance procedures. Regularly-scheduled intervals.
Perform a pre-trip inspection. Each time prior to operating the vehicle on the road.
Trailer Axle Series, Hub Assembly Type,
and Hub Part Number
1
1
The hub part number is cast into the inboard side of the wheel mounting flange.
Lubricant Volume per Wheel End
API-GL5 Oil
NLGI 00 Semi-Fluid
Grease
2
2
Volume includes the lubricant volume of the bearing cones. PreSet

bearings are not greased prior to installation.
NLGI 1 or 2 Grease
2
TP Series
PreSet

hub assembly
Hub part number 16040
Hubcap Fill Line
Approx. 24.55 fl. oz.
(44.31 cu. in.)
35.00 fl. oz. (63.16 cu. in.) NOT RECOMMENDED
TP Series
Conventional hub assembly
Hub part number 15968
Hubcap Fill Line
Approx. 24.55 fl. oz.
(44.31 cu. in.)
33.47 fl. oz. (60.41 cu. in.) 23.37 fl. oz. (42.17 cu. in.)
TN Series
PreSet

hub assembly
Hub part number 16048
Hubcap Fill Line
Approx. 15.17 fl. oz.
(27.37 cu. in.)
31.00 fl. oz. (55.95 cu. in.) NOT RECOMMENDED
TN Series
Conventional hub assembly
Hub part number 15984
Hubcap Fill Line
Approx. 15.17 fl. oz.
(27.37 cu. in.)
25.57 fl. oz. (46.15 cu. in.) 21.22 fl. oz. (38.29 cu. in.)