Western Star 47X 2020, Maintenance Manual

Page: 103 / 166

6. Fill the axle with the recommended lubricant.
See
Table 7 for recommended drive axle lubri-
cants, and Table 8 for drive axle lubricant ca-
pacities.
Dana Spicer Drive Axle Recommended Lubricant
Lubricant Type Condition
Lubricant SAE
Viscosity
Grade
Dana Spicer
Roadranger®
Synthetic Drive Axle
Lubricants, or
Equivalent with
Military Specification
MIL–L–2105D
Over-the-Road
Service
75W–90
Off-Highway
Equipment, or
Under Extra
Heavy Loads
80W–140
Table 7, Dana Spicer Drive Axle Recommended
Lubricant
Dana Spicer Drive Axle Lubricant Capacities
Axle Type Axle Model
Capacity:
*
Pints (liters)
Single Drive Axle Installation
Single
Reduction
23080S, 23080D 40 (18.9)
23105S, 23105D 48 (22.7)
Tandem Drive Axle Installation
Single
Reduction
DD404, DD404–P 31 (14.7)
†
DS404, DS404–P 39 (18.5)
†
DS461–P 43 (20.3)
†
2-Speed (dual-
range)
DT402, 402–P 34 (16.1)
†
DT451–P 39 (18.5)
†
DT461–P 43 (20.3)
†
Double
Reduction
DP451–P 34 (16.1)
†
DP461–P 43 (20.3)
†
*
Quantities listed are approximate. Fill axle until lubricant is level with bot-
tom of fill hole with vehicle on level ground.
†
Add 2 pints (1 L) of additional lubricant to the power divider.
Table 8, Dana Spicer Drive Axle Lubricant Capacities
NOTE: Some Dana Spicer axles have a
small tapped and plugged hole near and
below the housing oil fill hole. This smaller
hole is for a lubricant temperature indicator
only, and should not be used as a fill or level
hole.
6.1 Fill the axle through the oil fill hole or
standpipe opening. Lubricant should be
level with the bottom of the oil fill hole, or
the top of the standpipe opening. To
check fluid level, see
Fig. 2 .
6.2 Install and tighten the fill plug 40 to 60
lbf·ft (54 to 81 N·m).
35–02 Axle Breather and Axle
Lubricant Level
Inspection
For all axles, including tandem drive axles and two-
speed axles, perform the applicable procedures
under the heading, "All Axle Models." For a two-
speed axle with a shift unit, also check the shift unit
lubricant; see under the heading, "Two-Speed Axles
With Shift Unit."
All Axle Models
Detroit ™ Model 4 and Model 6
NOTICE
Failure to keep the rear axle filled to the proper
level with the recommended lubricant can result in
rear axle damage.
1. Park the vehicle on a level surface, shut down
the engine, and set the parking brake. Chock the
tires.
2. If the vehicle has just been driven, allow a few
minutes for the lubricant to settle.
3. Clean the fill plug and the area surrounding the
fill plug on the side of the axle carrier. Remove
the plug. Check lubricant level when the axle is
cold, or near room temperature.
NOTE: Some Detroit axles have a small tapped
and plugged hole near and below the housing
oil fill hole. This smaller hole is for a lubricant
temperature indicator only, and should not be
used as a fill or level hole.
4. Check that the lubricant is level with the bottom
of the fill hole. See
Fig. 2 . If low, check for oil
leaks, and correct as needed. Add oil to the level
of the fill plug, using the lubricant recommended
in
Table 4 .
Rear Axle
35
47X and 49X Maintenance Manual, August 2020
35/7