Description - Meritor MTC-4208X Series Service Manual

Description

Meritor MTC-4208X/XL/XP/XLEV/XLEC, MTC-4210X/XL/XP/XLEV/XLEC
and MTC-4213X Series transfer cases are four-shaft designs with two-
speed front and rear output having a 1:1 and a 1:2.05 ratio for use
with part-time 4x4 and 6x6 vehicles. The MTC-4208 and MTC-4210
Series are designed specifi cally for use in 4x4 vehicles (the MTC-4213
Series is designed specifi cally for 6x6) as part of the Meritor medi-
um-duty 4x4 drive system. Figure 2.2.
TYPICAL 4X4 HOOKUP
Figure 2.2
The air-actuated front-axle declutch (if equipped), high and low shifter
and full-torque power take-off (PTO) lockup are controlled from the
cab. An air plunger or electric switch, usually mounted on the instru-
ment panel, engages or disengages a mechanical clutch.
An optional speed sensor measures transfer case output driveline
rpm. Optional switches indicate when the front axle declutch is fully
engaged or disengaged.
These transfer cases provide for two-speed output (high range and low
range) and a neutral position used for PTO-equipped transfer cases
only. Non-PTO cases can have this neutral position plugged with a
breather. Figure 2.3.
LOW
RANGE
PORT
Figure 2.3
Printed in USA
4000185a
NEUTRAL PORT
(MTC-4208 AND
MTC-4210 ONLY)
HIGH RANGE
PORT
4007105a
Copyright Meritor, Inc., 2020
The front axle declutch permits shifting from part-time 4x4 or 6x6
operation to rear-wheel drive (RWD). Figure 2.4, Figure 2.5 and Figure
2.6. Engagement can be confi rmed by hearing it, noticing improved ve-
hicle performance, or observing the optional indicator light in the cab.
The full-torque PTO option provides an outlet to drive auxiliary power
devices. Figure 2.7.
Optional switches for full-torque PTOs indicate full engagement or
disengagement.
2 Introduction
MM-0861 / Revised July 2020
Page 31