EMISSION CONTROL (J08E)
EN10–29
BURNER SYSTEM WARNING AND CAUTION
EN0110610A100001
BEFORE YOU BEGIN
Read and understand all instructions and procedures before you begin to service components.
Read and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help
prevent serious personal injury, damage to components, or both.
Follow your company’s maintenance and service, installation, and diagnostics guidelines.
Use special tools when required to help avoid serious personal injury and damage to components.
HAZARD ALERT MESSAGES
! WARNING
A Warning alerts you to an instruction or procedure that you must follow exactly to avoid serious personal injury and
damage to components.
! CAUTION
A Caution alerts you to an instruction or procedure that you must follow exactly to avoid damage to components.
HAZARD ALERT MESSAGES
Read and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help
prevent serious personal injury, damage to components, or both.
! DANGER
During engine "ON", the burner system may uses an ignition coil to increase voltage to 40,000-50,000 volts. Do not
touch the ignition coil during engine "ON". Death or serious personal injury, and damage to components can result.
The burner system uses a high voltage arc to ignite the injected fuel. A coil located near the muffler unit provides
extremely high voltage. Two ignition cable connect the coil to two ignition plugs. Turn the vehicle OFF and disconnect
the battery before you service these components to prevent death or serious personal injury, and damage to compo-
nents.
The burner system oxidizes and releases heat into the exhaust outlet.
Depending on the amount of soot, exhaust outlet temperatures during regeneration can exceed 1,290
F (700
C). Do
not touch the exhaust outlet. Do not park a vehicle under objects, such as trees and awnings, which can ignite from
the extremely high exhaust outlet temperature. Death or serious personal injury, and damage to components can
result.
If your vehicle has the stack tail pipe. Do not park a vehicle on ignitable objects, such as grass.
! WARNING
To prevent serious eye injury, always wear safe eye protection when you perform vehicle maintenance or service pro-
cedures.
The burner system operates at an extremely high temperature of about 1,832
F (1,000
C) inside the combustion
chamber. The skin temperature of a unit can reach 572
F (300
C) during operation. Even higher temperatures can
occur at the flange; the exhaust outlet; and the filter, which remains hot for a longer period of time than other system
components. Before you service the burner unit, all system components must be at ambient temperature to prevent
serious personal injury.
An original equipment-mounted exhaust outlet is not insulated. The skin temperature of a non-insulated exhaust out-
let can exceed 1,292
F (700
C) during operation. Before you service the thermal regenerator unit, all system compo-
nents must be at ambient temperature to prevent serious personal injury.
When you work on an electrical system, the possibility of electrical shock exists, and sparks can ignite flammable
substances. You must always disconnect the battery ground cable before you work on an electrical system to prevent
serious personal injury and damage to components.
