Gear Selection - Bell B35E 6X6 ADT Operator's Manual

OPERATION
OPERATING INSTRUCTIONS
This test must only be performed in a flat, open,
demarcated area. The width of the demarcated area shall
be at least twice the overall width of the test vehicle to
enable the operator to test the steering to the left and
right without moving out of the demarcated area. No
other vehicles or pedestrians shall under any
circumstances be allowed within the demarcated area or
be parked within 2 metres of the demarcated area during
testing.
Test Procedure
After doing the routine vehicle inspection, the
operator may proceed with the test.
• Switch the ignition ON and ensure that the CDU
is in its default screen.
• From the CDU default screen press MENU (E) on
the B-Drive and rotate the Toggle Device clock-
wise to "Machine Config" option. Press Enter/Se-
lect button to SELECT.
• While in the "Machine Config" menu, SELECT
"Service Info".
• SELECT "Emergency'Steering Test".
• Press and hold the Enter/Select button to activate
the test routine.
If not already started, the operator should at this
stage start the machine.
When the emergency steering test is active the
message "Emergency Steering Test" flashes on the
CDU and the buzzer sounds continuously.
While the test is active the following steps
should be followed:
• Drive the machine to the desired speed (8 to 20
km/h) and then release the throttle.
• The transmission will default into Neutral and the
engine will cut off, but if the ground speed is
above 15 km/h, then the machine will slow down
to below 15 km/h before the engine cuts off.
• The buzzer sounds with short, quick beeps notify-
ing the operator that the engine has been cut.
At this point the operator must perform the steering
test by turning to the left and right several times,
making sure the machine is going in the intended
direction.
When the machine slows to below 5 km/h the
engine will re-start and the transmission revert back
to forward gears
• To exit the test after the engine has been cut,
press either the accelerator or brake pedal.
• Activating the park brake or emergency stop at
any time during the test will terminate the test.
• As a safety precaution a speed limit of 25 km/h
for this test has been built into the machine
software.

Gear Selection

The transmission makes it unnecessary to select
the right moment to up shift or down shift during
changing travelling conditions.
However knowledge of the ranges and when to
select them will make machine control and the
operator's job easier.
The following is a brief summary of the range
selections covered in this manual.
Reverse
Completely stop the machine before shifting from a
forward gear to R or from R to a forward gear.
Neutral
Use N to start the machine and for periods of
engine idle operation. N is selected by the TCU at
start-up. Always select N before turning off the
engine.
The shift from N to D or R is inhibited when the
engine speed is above idle.
Drive
When D is selected with the On Board Weighing
System, 2nd gear will be selected for pull-off if the
truck is not loaded and 1st gear when the truck is
loaded. As machine speed increases, the
transmission will up-shift automatically through
each gear. as the machine slows, the transmission
will down-shift automatically. The monitor will
display the highest range available.
Even though D is selected, it may not be attained
due to active inhibit functions such as high throttle
or engine idle speeds. Check for active diagnostic
codes if D is not attained.