3.9 Exhaust system

3.9 Exhaust system

The exhaust system must not be modified.

3.9.1 Clearance between exhaust system parts and other parts

• The exhaust pipe and exhaust gas purification devices (BlueTec® system) become so hot that if they are too close to or interfere with other chassis parts, a serious accident like fire or damage by melting could occur. Malfunction is also a possible consequence. Secure sufficient clearance in accordance with the standards e page 120. If this is impracticable, provide a heat shield plate to ensure safety. • Do not install the tail pipe under the fuel pipe, fuel hose joint or fuel filter drain plug.

Wooden and rubber body parts should be more than 100 mm (3.94 in ) apart from the diesel particulate filter (DPF) integrated muffler, SCR muffler and exhaust pipe. If this is impracticable, provide a heat shielding plate against to ensure safety.

3.9.2 Exhaust gas purification devices (BlueTec® system) and sensors

• Exhaust gas purification devices (BlueTec® system) may be damaged by tool or equipment impact, or if dropped. When mounting, handle them with sufficient care. • To prevent the exhaust gas purification devices (BlueTec® system) and engine proper from being adversely affected, do not relocate the exhaust gas purification devices (BlueTec® system), exhaust temperature senor, differential pressure sensor, lambda sensor or NOx sensor.

If temporary removal of these parts becomes inevitable during mounting, be sure to reinstall these parts in the original places. Connect the pressure sensor hose properly, not in reverse, too loose nor too tightly. Also, securely clip hose joints and confirm that there are no exhaust gas leaks. • Exhaust gas purification devices and sensors are periodically removed for maintenance. Install any nearby equipment so that removal and reinstallation work can be carried out without any problems.

The original exhaust system mounting, meaning the bracket components including frame-mounted castings, may not be modified. Modifications can lead to damage to the exhaust system.

a Risk of accident and injury

The tail pipe of a DPF-equipped vehicle can become considerably hotter than that of a conventional vehicle during automatic regeneration. Provide sufficient clearance between the tail pipe and other parts.

3.9.3 BlueTec® exhaust gas aftertreatment

BlueTec® exhaust gas aftertreatment removes NOx in the exhaust gas. Do not modify or relocate any of the following parts because the performance of the system is may become compromised. • SCR muffler • DEF tank unit • Dosing module • DEF hose

Don't take out the power supply for other electric components from the existing fuse. Especially the function of BlueTec® exhaust gas after treatment can not work when the fuse of system is blowout. BlueTec® exhaust gas after treatment requires a lot of electric power to work the heating device for freeze proofing in winter or cold region.