CUMMINS ED-3 Manual de instalación descargar pdf (Pagina 21)

Natural Gas Generator Set Installation Manual-GF Series

Doc. 17855, Rel. 03/2014

3-7

6. Do not impose external force(s) on the catalyst

housing greater than 22.7 kg (50 lb) in any direc-

tion.

7. It is required to put a flexible tubing (i.e. bellows

or flex pipe) between the engine and the begin-

ning of the exhaust piping. This will isolate the 3-

way catalyst and other downstream components

from engine vibration.

8. For vertical flow mounting, ensure that the stack

above the catalyst is independently supported.

See Figure 3-5.

9. Avoid cantilevering loads off the end of the 3-

way catalyst.

10. The engine oil shall meet CES 20074 or better

specifications as required by the engine manu-

facturer.

11. The catalyst must be installed to guarantee air

exhaust temperature into the catalyst of 482°-

649° C (900°-1200° F). Any temperature outside

this range may affect catalyst performance or

life.

12. The catalyst can be installed either upstream or

downstream of the silencer to obtain sufficient

exhaust inlet temperatures.

3.8.2 Owner’s Responsibilities

1. The owner is responsible for keeping the natural

gas 3-way catalyst system on the equipment

because the removal of the system may cause a

violation of the local emission regulations.

2. The owner is responsible for periodic inspection

of the system in accordance with these and

other operational instructions.

3. The owner is responsible for maintaining the

operation of the engine in a way that would NOT

adversely affect the natural gas 3-way catalyst

system. Any misfire, stack detonations, oil or

debris in the exhaust system, shall be recorded

in the equipment’s service record.

4. The owner is responsible for maintaining com-

plete oil consumption and service records, as

well as software files, where applicable, and to

make them available to a requesting Cummins®

authorized repair location for troubleshooting

purposes.

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