freightliner PX113064S T 2016, Руководство пользователя, Страница: 212 / 236

Lowering a Vehicle with Air
Suspension
WARNING
Do not use bottle jacks to raise the vehicle.
Always use floor jacks.
Bottle jacks can slip, allowing the vehicle to fall,
which could result in damage to the vehicle,
serious injury, or death.
NOTICE
NOTICE: Do not place jack stands under any of
the suspension components; doing so could
cause suspension component damage.
Jack stands can be placed at any point below the
axle, including the differential area.
1.
Using a floor jack, raise the vehicle to remove
any jack stands used to support the vehicle.
2. Slowly lower the vehicle to the ground.
3. Inflate the air suspension, and check for proper
operation. Refer to
Group 32 of the eCascadia
Workshop Manual for instructions.
Combustible Gas Detection
System
IMPORTANT: The gas detection system must be
powered at all times.
The gas detection system must be wired directly
into the 12V batteries so that it can only be
powered off by disconnecting the 12V batteries.
When servicing the vehicle, disconnect the 12V
batteries only when necessary and do not leave
them disconnected for extended periods of time.
A USA Pro Shoreline multizone combustible gas
detection system is standard equipment on an
eCascadia. The system is designed to give early
warning of a high-voltage battery thermal event. It
does this through detecting hydrocarbon gas levels
— methane, propane, butane, hydrogen, methanol,
ethanol, diesel fuel, gasoline — and warning about
these gas levels before they reach their lower
explosive limit (LEL).
The LEL is the smallest amount of the gas that
supports a flame when mixed with oxygen and
ignited. Zero percent (0%) LEL indicates a gas-free
atmosphere. One hundred percent (100%) LEL
indicates that the air concentration for that gas has
reached its lower explosive limit.
The system consists of two external sensors and a
control panel.
The sensors are located under the deck plates at the
midpoint of the high-voltage batteries as shown in
Fig. 19.18. This places them where rising gas vapors
from the high-voltage batteries pass by or
accumulate.
Two labels on the control panel highlight important
information about the combustible gas detection
f311392 10/19/2021
Fig. 19.17, No Lift Areas of an eCascadia
In An Emergency
19.9