Maintenance; Drive Axle Lubrication - PREVOST H3-41 Maintenance Manual

FIGURE 3: DRIVER-CONTROLLED DIFFERENTIAL LOCK
2.3

MAINTENANCE

Proper vehicle operation starts with preventive
maintenance, which includes adequate operation
of the differential.
The most common causes of drive axle failures
are spinout, shock, fatigue, overheating and lack
of lubrication. Monitor these conditions as they
could be the first steps leading to improper
maintenance, expensive repairs, and excessive
downtime.
MAINTENANCE
Inspect the pinion oil seal, axle shaft flange and
carrier housing gaskets for evidence of lubricant
leakage. Tighten the bolts and nuts, or replace
the gaskets and seals to correct leaks.
Maintenance of the axle mountings consists
primarily in a regular and systematic inspection
of the air suspension units and radius rods, as
directed in Section 16, "Suspension".
2.3.1

Drive Axle Lubrication

Use multigrade gear
specification GL-5. Petroleum based gear oil
may be used for standard drains interval. Fully
synthetic gear oil must be used for extended
drains interval. In extreme conditions, or for
better performance, fill with synthetic gear oil.
oil meeting API
PA1621 Maintenance Manual All Series | January 2017
SECTION 11: REAR AXLES
Fill Meritor axle with approved lubricants. Refer
to Meritor technical bulletin
Rear Drive Axle Lubricants
MAINTENANCE
Differential oil level
Check oil level (add if necessary) at the
intervals specified by the Lubrication And
Servicing Schedule
LUBRICATION & SERVICING.
MAINTENANCE
Extended Drains
If using full synthetic
differential oil and
magnetic fill and drain plugs, at the intervals
specified by the Lubrication And Servicing
Schedule in Section 24: LUBRICATION &
SERVICING.
Regular Drains
If using petroleum based oil, change differential
oil and clean the breathers, magnetic fill and
drain plugs, at the intervals specified by the
Lubrication And Servicing Schedule in Section
24: LUBRICATION & SERVICING.
FIGURE 4: DIFFERENTIAL HOUSING BOWL
TP-9539 Approved
for oil selection.
in Section 24:
gear oil, change
clean the breathers,
7