freightliner 108SD, Руководство пользователя

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Control Module Functions
Item Display Function Action Required
Shutdown Reset Button —
Resets the system after an alarm
activation.
Press to reset the system only
after the gas has cleared, the
buzzer has turned off, and the
alarm panel light has returned to
green.
Relay Engaged Light
On
Relay is engaged and test or
alarm is being cleared.
Press the Shutdown Reset button.
Off Normal condition. None required.
Test Button —
Tests the overhead console
operation and circuitry.
Press and hold for one minute to
to activate a test of all overhead
console components.
Silence Button — Silences the alarm buzzer. Press to silence the alarm buzzer.
Silence Engaged Light
On
Indicates the buzzer is active but
silenced.
Suspend vehicle operation
immediately and follow alarm
procedures.
Off Normal condition. None required.
Table 19.2, Control Module Functions
Test results validating the performance of the gas
detection system within the parameters established
by the component manufacturer and NFPA 52 2010
should be maintained as a permanent part of the ve-
hicle service records. Use of alcohol, propane, and
other harsh liquids or gases are not acceptable
methods for testing.
Always test the system and sensors after any com-
ponent has been replaced, or if the vehicle has been
involved in an accident or fire. Ensure that the gas
detection system is wired directly to the battery.
It is recommended that the highest level of safety
validation be utilized if there are multiple validation
requirements in the state or locality where the vehicle
is operated or domiciled.
Overhead Console Test
Press and hold the Push To Test button for one min-
ute. The system will proceed with a self-diagnostic
test that will include illumination of the
Trace and
SIGNIFICANT gas concentration lights, and the sen-
sor fault lights. Verify the large red light and buzzer
activate, and that all lights illuminate or flash to en-
sure that all bulbs are operational.
Sensor Test
The gas detection system sensors must be tested
using certified test gas, which can be purchased as
part of a test kit. Testing with alcohol or heavy gases
such as butane or propane does not satisfy CCR
§
935 (2) or NFPA 52 regulations.
Expose each sensor to certified test gas for at least
thirty seconds. The system will proceed through the
alarm procedure consistent with a significant leak
and the buzzer will sound after approximately fifteen
seconds. If a sensor fails to respond after exposure
to the test gas, replace the sensor.
Natural Gas Vehicles, Engine
Starting
NOTE: Before starting the engine, read Chap-
ter 4 for detailed information on how to read the
instruments and Chapter 5 for detailed informa-
tion on how to operate the controls. Read the
operating instructions in the engine manufactur-
er’s operation manual before starting the en-
gine.
1. Before engine start-up, complete the engine pre-
trip and post-trip inspections and maintenance
procedures in
Chapter 20 and Chapter 21 .
2. Ensure the fuel shutoff valve is open.
3.
Set the parking brake.
4. Ensure that the transmission shift control is in
Neutral (N), Park (P), or the Park Brake (PB) po-
sition.
Natural Gas Vehicle
19.9