Doosan G20P-5, Service Manual

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G424F(FE) Service Manual Chapter 1. General Information 9
Precautions for catalytic Converter
CAUTION
If a large amount of unburned gasoline flows
into the converter, it may overheat and create a
fire hazard. To prevent this, observe the
following precautions and explain them to your
customer.
1.
Use only unleaded gasoline.
2.
Do net run the engine while the truck is at rest for
a long time. Avoid running the engine at fast idle
for more than 5 minutes and at idle speed for
more than 10 minutes.
3.
Avoid spark-jump tests. Do spark-jumps only
when absolutely necessary. Perform this test as
rapidly as possible and, while testing, never race
the engine.
4.
Do not measure engine compression for an
extended time. Engine compression tests must be
made as rapidly as possible
5.
Do not run the engine when the fuel tank is nearly
empty. This may cause the engine to misfire and
create and extra load on the converter.
6.
Avoid coasting with the ignition turned off and
during prolonged braking
7.
Do not dispose of a used catalytic converter
together with parts contaminated with gasoline or
oil.