7 MAINTENANCE AND LUBRICATION
en-78
d When the cables are connected, start the engine on the vehicle with the good battery, then start the
mower.
7.13 ENGINE EXHAUST _______________________________________________________________
CALIFORNIA PROPOSITION 65
The exhaust system has the exhaust manifold, Diesel Particulate Filter (DPF) and exhaust pipes. Refer to Section
7.14, Section 4.2.6.28, Section 4.2.6.29 and the Engine Manual for information about the DPF system.
If you sense a change in the color or sound of the exhaust, stop the engine immediately. Identify the problem and have
the system repaired.
Torque all exhaust manifold hardware equally. Tighten or replace the exhaust clamps.
7.14 DIESEL PARTICULATE FILTER ______________________________________________
During the operation of the mower, the level of particle material will increase in the Diesel Particulate Filter (DPF)
system. The periodic Regen of the DPF system is needed to remove particle material. During an Active or Parked
Regen, the engine will use more fuel. The DPF system operates in one of four states.
Passive Regen State - The engine operates in the Passive Regen state during normal engine operation. The exhaust
temperature can be more than 572° F (300° C).
Inhibit Regen State - When the visual display is set to Inhibit Regen, the engine can not enter the Active or Parked
Regen states. Inhibit Regen does not prevent the Passive Regen. If the fuel tank is near empty, set the visual display to
Inhibit Regen until the fuel tank is filled. See Section 4.2.6.28.
WARNING
The exhaust fumes contain carbon monoxide. The carbon monoxide in the exhaust fumes can increase to
dangerous levels. To protect you from carbon monoxide poisoning, inspect the complete exhaust system every
month and replace damaged components immediately.
NEVER operate the engine without enough ventilation.
The temperature of the exhaust components can be greater than 300° F (149° C). To prevent the burns, do not
touch a hot exhaust system.
WARNING
The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects and other reproductive harm.
WARNING
During Active or Parked Regen, the temperature of the exhaust components can be more than 1150° F (625° C).
To prevent burns, do not touch a hot exhaust system and do not stand or reach into exhaust gas area from exhaust
pipe outlet. To prevent fires, make sure the engine area is kept clean and the grass clippings are not near exhaust
components.
Make sure the exhaust gas from the exhaust pipe is not blocked and there is enough space between the exhaust
pipe and objects. Park the mower on concrete or gravel during Parked Regen. During Active or Parked Regen
exhaust gas from the exhaust pipe can cause turf damage or fire.
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