Combustible Vapors
1 DO NOT use combustible gas in turbo
NOTE
Numerous safety devices (i.e. engine
shutoff devices) are available to mini-
mize the risk of engine overspeeding
caused by combustible vapors being
ingested into the air intake system.
PACCAR recommends the installation of
an air intake shutoff device or a similar
safety device to minimize the risk of
overspeeding, as can occur when the
vehicle is being operated in a combustible
environment, such as from a fuel spill or
gas leak.
WARNING
Combustible vapors near the air intake
system could be ingested into the en-
gine, causing the engine to suddenly
accelerate and overspeed. This condi-
tion could result in the operator losing
control of the vehicle if an unexpected
increase in engine rpm occurs. Com-
bustible vapors could also cause a fire.
DO NOT operate your vehicle in an
area where combustible chemicals or
vapors may be present. Failure to
comply may result in death, personal
injury, equipment or property damage.
NOTE
IT IS THE RESPONSIBILITY OF THE
OWNER AND OPERATOR TO OPER-
ATE THE VEHICLE IN A SAFE ENVI-
RONMENT.
NOTE
If the engine is running, increase en-
gine speed (rpm) or operate the vehi-
cle until the low oil pressure warning
lamp turns off.
ENGINE OPERATION - Operating Instructions
20 Y53-1183-1G1 (05/19)
1
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