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Copyright Meritor, Inc., 2022
MM-0861 / Revised 06-22
Page 62
Printed in USA
7 Assembly
Assemble the Double Idler Gear Subassembly
(All Models)
1. Install the shaft assembly into a press and support it correctly.
2. Place the bearing cone onto the end of the shaft assembly
with the appropriate end facing UP. Use a sleeve, (non-XLEV/
XLEC models use "Bearing Cone Driver (905473-82)" on
page 111) (XLEV/XLEC models use "Bearing Driver (4FI20-
27110-000008-D01)" on page 110), and press to push the
bearing cone DOWN until it is fully seated. Only press on the
inner race of the bearing cone. Use a 0.002” shim or feeler
gauge to ensure the bearing cone is correctly seated.
3. Turn the shaft assembly over and install the bearing cone on
the other end using Steps 1-2.
Assemble the Input Shaft Subassembly
(MTC-4213X Only)
1. Press the bearing cup into the input bearing cage until it is
fully seated.
2. Place the large o-ring around the groove on the bearing cage.
3. Install the relief valve and spring into the oil pump. The
plunger should be seated into the relief valve orifice.
4. Install the internal oil pump using the following procedure.
a. Pack lithium-complex grease, Meritor specification O-668,
into the pump oil inlet port before assembling the oil pump to
the input bearing cage.
b. Place the bearing cone on the race in the bearing cage.
c. Insert the relief valve and spring into the relief port of the
input bearing cage. Install the large diameter end of the spring
down. Align the oil pump inlet with the oil inlet port of the
input bearing cage.
d. Install the six pump-to-inlet bearing cage capscrews and
washers. Apply Loctite
®
277 sealant to the capscrews. Tighten
the capscrews to 35-50 lb-ft (48-68 Nm).
e. Lubricate the sealing rings on the inside diameter of the pump
and the shaft journal adjacent to the pump splines.
5. Place the small helical gear over the input shaft with the
spline side of the gear down and install the spiral snap ring.
The gear is a slip fit.
6. Install the shaft assembly into a press and support it correctly.
7. Place the bearing cone onto the end of the shaft assembly
with the appropriate end facing UP. Use a sleeve, "Bearing
Cone Driver (905473-82)" on page 111, and press to push
the bearing cone DOWN until it is fully seated. Only press
on the inner race of the bearing cone. Use a 0.002” shim or
feeler gauge to ensure the bearing cone is correctly seated.
8. Apply Loctite
®
592 threadlocker to the restrictor plug and
install it into the end of the bearing cone. Tighten the plug to
15 lb-ft (20 Nm). Figure 7.6.
4007182a
RESTRICTOR
PLUG
BEARING
CONE
Figure 7.6
Assemble the Front Input Shaft, Input Shaft Bearing
Cage, and Internal Oil Pump Sub-Assemblies
(MTC-4208X/XP/XL/XLEV/XLEC and MTC-4210X/XP/
XL/XLEV/XLEC Only, If Equipped)
1. Use "Bearing Cup Driver (910203-37)" on page 113 to
press the bearing cup into the input bearing cage until it is
fully seated.
2. Place the large o-ring around the groove on the bearing cage.
MTC-4208/4210X AND XP SHOWN
NOT APPLICABLE TO MTC-4208/4210XL and XLEV
RELIEF VALVE
AND SPRING
4000211b
LARGE
O-RING
Figure 7.7
3. Install the internal oil pump, if equipped, using the following
procedure.
a.
MTC-4208X/XP and MTC-4210X/XP transfer cases only:
Pack lithium-complex grease, Meritor specification O-668,
into the pump oil inlet port before assembling the oil pump to
the input bearing cage. Figure 7.8.