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Service Manual – SW5500, FLOORTEC R 985
29 - Engine System, LPG
CO Regulation
WARNING:
This procedure must be performed by personnel qualified to handle the LPG systems,
according to the law in force.
Note:
During the fumes analysis always make sure you check the following conditions:
1. CO = Co
corr
2. CO
2
> 10
3. CO
2
+ CO = 12÷17
If you can not make these reading conditions it means that we are in the presence of an external
interference Micro injuries of the smoke sensor pipes, vents air from the exhaust holes (tube or temperature
sensor) can be a source of problems The measurement is a very delicate and extremely sensitive to external
disturbances
Before proceeding to the connection of the analysis probe to verify that the device measures a quantity of
oxygen comprised between 20 and 21%, that from the guarantee of correct operation of the oxygen sensor
CO Emissions Check
1 Remove the two small screws from the exhaust manifold (A) and connect the analysis probes
(temperature and gas). Also remove the set screw protection on the flow regulator:
◦
black cap in anti-tampered device in case of US machine (B)
◦
red cap in case of EU machine (C)
Figure 13:
A
A
C
B
