to short the two magnetic poles and divert
the magnetic field.
5.2 Check the drain plug for metal particles
every 100,000 miles (160 000 km). Clean
away the collected material deposited on
each pole. Magnets will rapidly lose their
effectiveness as collected material
bridges the gap between the two poles.
5.3 Meritor recommends plugs with elements
having a minimum pickup capacity of 1.5
pounds (0.7 kg) of low-carbon steel. Each
time the oil is changed, replace any mag-
netic drain plug that does not meet the
minimum pickup capacity.
5.4 Install the drain plug(s) and tighten to 35
lbf·ft (47 N·m).
6. Fill the axle with recommended lubricant as fol-
lows. For lubricant capacities, see
Table 4
(single axles) or Table 5 (tandem axles). See
Table 3 for recommended lubricant.
6.1 With the vehicle on a level surface, fill the
axle through the oil fill hole. Allow a few
minutes for the oil to flow into the axle.
Lubricant should be level with the bottom
of the oil fill hole.
6.2 Check the fluid level; see
Fig. 4.
6.3 Install and tighten the fill plug 35 lbf·ft (47
N·m).
7. Whenever the interaxle differential housing has
been drained, add an additional 2 pints (0.9 L) of
the recommended lubricant directly into the inter-
axle differential housing.
8. Remove the chocks, then drive the vehicle, un-
loaded, for 1 or 2 miles (2 or 3 km) at speeds
not to exceed 25 mph (40 km/h), to thoroughly
circulate lubricant throughout the carrier and
housing assemblies.
Dana Spicer Axles
NOTE: If using a Roadranger synthetic drive
axle lubricant, the lubricant change interval is
extended to 180,000 miles (288 000 km).
1. Park the vehicle on level ground, set the parking
brakes, and chock the tires.
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.
2. Clean the oil fill plug and the area around it (see
Fig. 3), then remove it from the oil fill hole.
3. Place a drain pan under the rear axle drain plug;
see
Fig. 3. Drain the oil at normal operating tem-
perature, 150°F to 200°F (65°C to 93°C). At this
temperature, the oil will run more freely and en-
sure that the axle is flushed.
NOTE: Some tandem-drive axles are equipped
with a cylindrical magnetic strainer, located
below the lube pump on the front of the power
divider cover. All rear axles are fitted with mag-
netic drain and fill plugs.
4. At each axle oil change, remove and clean the
magnetic strainer, if equipped, as follows.
4.1 Remove the magnetic strainer from the
power divider cover. See
Fig. 6.
WARNING
Always wear eye protection when using com-
pressed air to clean parts, as flying debris could
cause permanent damage to unprotected eyes. Do
not point the air stream in the direction of other
persons.
f350119a10/05/2016
Fig. 5, Meritor Axle Oil Filter Removal
Rear Axle35
108SD and 114SD Maintenance Manual, November 201635/6
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