Meritor MTC Series - Operation

Copyright Meritor, Inc., 2021
Printed in USA
MM-2034 / Issued 02-21
Page 6
3 Introduction
Operation
Front Axle Declutch
WARNING
Do not engage the front axle declutch when the vehicle’s wheels
are slipping or when moving up or down a steep hill or grade,
which can cause the vehicle to lose stability. Serious personal
injury and damage to components can result.
Operation of the front axle should occur only on off-road or poor
traction conditions. Engaging the declutch affects the vehicle’s
turning and steering responsiveness. Do not engage the declutch
or low gear range under normal operating conditions. Serious
personal injury and damage to components can result.
Engage the declutch when the vehicle is stationary or operating at
constant low speed, below 10 mph or 4 km/h.
Operate the vehicle at speeds less than 25 mph (40 km/h) when part-
time 4x4 or 6x6 operation is engaged off-road.
High-Low Shifting
Shift the transfer case into low from high gear or from high to low
gear when the vehicle is stationary. Apply the parking brake with the
transmission in Neutral, automatic transmission only.
Engagement can be confi rmed by hearing the shift fork move internally
when the shift is commanded, noticing improved vehicle performance,
or observing the optional indicator light in the cab.
If the clutch does not fully engage: Turn the steering wheel in one
direction and rock the vehicle back and forth until engagement occurs.
Full-Torque Power Take-Off (PTO)
CAUTION
Do not engage the full-torque power take-off (PTO) when the
transfer case prop shafts are turning. Damage to the transfer case
will result.
Engage or disengage the PTO when the vehicle is stationary, the
transmission is in Neutral, and the transfer case prop shafts are not
turning. NEVER load the driven auxiliary device when the PTO is initial-
ly engaged. Use the transfer case in-cab switches to place the transfer
case into Neutral.
Engagement can be confi rmed by hearing by hearing the shift fork
move internally when the shift is commanded or observing the optional
indicator light in the cab.
The PTO may be operated in High/Low/Neutral range.
When operating the PTO in Neutral range, do not exceed 2,000 rpm.
Control the transmission shift range and engine rpm to ensure this limit
is not exceeded.
Breather Location
The breather assembly is located on the front case and should be
cleaned whenever the oil is changed.
Breather
4018193a
Figure 3.3