freightliner BUSINESS CLASS M2 Driver Manual page 109

Drivetrain
Calibration may take up to two minutes to complete.
The engine may slow and return to normal idle sev-
eral times during calibration.
To stop calibration at any time, select one of the
drive positions on the selector switch (R, D, or L).
Clutch Protection Fault
Excessive clutch slippage creates heat and reduces
the life of the clutch. These are some conditions
which lead to clutch abuse:
•
Using the throttle to hold the vehicle on a
grade
•
Starting the vehicle in too high a gear
•
Overloading the vehicle
•
Using high idle with the vehicle in gear
The UltraShift TCU is programmed to prevent clutch
abuse. When the clutch overheats, the following
alerts take place:
•
The "TRANS TEMP" light comes on
•
The gear indicator displays "CA"
•
A warning tone sounds at one second intervals
The alerts continue until the clutch cools, the throttle
is released, or the clutch is fully engaged.
System Problem
In the event of a problem, do the following steps:
1. Note the driving conditions at the time the prob-
lem occurred.
2. Record the status of the transmission at the time
of the problem (AUTO or MAN mode, gear set-
ting R, N, D, or L, current gear, engine speed,
etc.)
3. Reset the system, using the procedure below.
Reset Procedure
Transmission operation can sometimes be restored
by doing the following reset procedure:
1. Stop the vehicle when it is safe to do so.
2. Place the selector switch in neutral and turn off
the ignition.
3. Check all harness connectors as described in
Chapter 11.
8.21
4. Wait at least two minutes with the engine shut
down.
5.
Restart the engine.
If the problem continues, contact an authorized
Freightliner or Eaton service facility.
Locked In Gear
If the transmission becomes locked in gear, a dash
(–) will appear on the gear indicator when the vehicle
is restarted during the reset procedure.
NOTE: If the transmission becomes locked in
gear while the vehicle is moving, increased
braking effort may be required to stop the ve-
hicle.
If the current gear indicator displays a dash during
power-up with the selector switch in neutral, do the
following steps:
1.
Make sure the parking brake is set.
2. Turn off the ignition and wait at least two min-
utes.
3. Apply the service brakes.
4. With the service brakes applied, release the
parking brake.
5.
Make sure the selector switch is in neutral and
turn on the ignition key. Do not attempt to start
the engine at this time.
6.
If necessary to get the transmission to shift into
neutral, release the pressure on the brake pedal
slightly.
7. Once the UltraShift TCU reaches neutral, a solid
"N" will appear on the current gear indicator and
the vehicle will start. Make sure the service
brakes are applied and the parking brake is set.
If the gear indicator continues to display a dash, con-
tact an authorized Freightliner or Eaton service facil-
ity.