T-Handle Shifter - freightliner S2 Operator's Manual

Propane Fuel System
Engine Shutdown
Shut down the engine immediately if:
•
the oil pressure gauge needle swings back and
forth or falls sharply;
•
engine power and rpm fall, even though the
accelerator pedal remains steady;
•
the exhaust pipe gives off heavy smoke;
•
the coolant and/or oil temperature climb abnor-
mally;
•
abnormal sounds suddenly occur in the engine.
1. With the vehicle stopped, place the transmission
in Neutral (N), or if so equipped, the Park (P)
position.
2. Set the parking brake.
3. Idle the engine for two to three minutes before
shutting it down. This allows the lubricating oil
and the coolant to carry heat away from the
combustion chambers, bearings, shafts, etc.
NOTE: Long periods of idling are not needed or
recommended.
4. Shut down the engine by turning the ignition
switch to the OFF position.

T-Handle Shifter

The S2 propane chassis is equipped with an Allison
2300 or 2350 Series transmission. A T-handle shift
control is used by the driver to select the transmis-
sion ranges. See Fig. 19.2. Refer to
transmission.com for additional information.
P (Park)
Use park, if so equipped, when turning the engine on
or off, to check vehicle accessories, or to operate the
engine in idle for longer than 5 minutes. This position
places the transmission in neutral and engages the
park pawl of the transmission.
NOTE: This does not apply the parking brake.
The park pawl is standard on the 2350 series
transmission. The park pawl effectively grounds
the transmission output shaft, thereby prevent-
ing rotation of the driveline. Provided the vehicle
is stationary, selecting P (park) on the shift se-
19.3
03/25/2014
lector, if so equipped, places the transmission in
neutral and engages the park pawl.
PB (Auto-Apply Parking Brake,
optional on 2300 Series)
The auto-apply parking brake places the transmis-
sion in neutral and applies the parking brake.
R (Reverse)
Reverse is used to back the vehicle. When the selec-
www.allison-
tor is in reverse, the reverse warning signal will
sound. Always bring the vehicle to a complete stop
before shifting from a forward range to reverse, or
from reverse to a forward range.
Do not idle in reverse for more than 5 minutes. When
time at idle exceeds 5 minutes, select N (neutral), or
if so equipped, P (park) or PB (auto-apply parking
brake).
NOTE: The shift into reverse may not succeed if
a range inhibitor is active. Check the driver dis-
play screen in the instrument panel for a
RANGE INHIBIT message.
Fig. 19.2, T-Handle Shift Control
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