GOVERNOR, FUEL INJECTION AND FUEL TRANSFER PUMP GROUP 7N1187 - Caterpillar

Exhaust back pressure should be checked at every 250 hour service interval, or more often as required. Refer to Testing and Adjusting, "Diesel Particulate Filter - Test" for the machine that is being serviced.Troubleshooting
When a diesel particulate filter is not working correctly, check the following:
Check the temperature of the exhaust gas at the diesel particulate rap filter. If the temperature has decreased, regeneration may not be occurring
Remove the diesel particulate filter and look at the raw exhaust emissions. This inspection may indicate that engine maintenance or repair is necessary
Physically inspect the diesel particulate filter
Check the exhaust outlet for blockagesCheck the following typical causes of poor diesel particulate filter performance:
Restricted air filter.
Faulty injectors.
A change in the duty cycle.
Excessive engine oil consumption.Cleaning the Flow Through Diesel Particulate Filter
The flow through diesel particulate filter will not plug with particulate matter or ash and requires no additional service intervals for cleaning.Diesel Particulate Filter
The muffler, catalytic converter/muffler, and diesel particulate filter will become extremely hot during engine operation. A hot muffler, catalytic converter/muffler and diesel particulate filter can cause serious burns. Allow adequate cooling time before working on or near the muffler, catalytic converter/muffler and diesel particulate filter.
Diesel engine exhaust contains products of combustion which may cause personal injury.Always start and operate the engine in a well ventilated area, and, if in an enclosed area, vent the exhaust to the outside.
The efficiency and service life of a diesel particulate filter is reliant on regular maintenance.Exhaust back pressure should be checked at every 250 hour service interval, or more often as required. Refer to Testing and Adjusting, "Diesel Particulate Filter - Test" for the machine that is being serviced.Troubleshooting
When a diesel particulate filter is not working correctly, check the following:
Check the temperature of the exhaust gas at the diesel particulate rap filter. If the temperature has decreased, regeneration may not be occurring.
Remove the diesel particulate filter and look at the raw exhaust emissions. This inspection may indicate that engine maintenance or repair is necessary.
Physically inspect the diesel particulate filter.Check the following typical causes of poor diesel particulate filter performance:
Restricted air filter.
Faulty injectors.
A change in the duty cycle.
Excessive engine oil consumption.Cleaning the Diesel Particulate Filter
Note: Poorly tuned or maintained engines may produce excessive amounts of particle matter, requiring maintenance to be performed more regularly.During preventative or routine maintenance, the diesel particulate filter should be cleaned by one of the following procedures:
Compressed air.
Steam Cleaning.
Kiln regeneration.For basic cleaning procedures refer to Testing and Adjusting, "Diesel Particulate Filter - Test".Exhaust Purifier
The muffler, catalytic converter/muffler, and diesel particulate filter will become extremely hot during engine operation. A hot muffler, catalytic converter/muffler and diesel particulate filter can cause serious burns. Allow adequate cooling time before working on or near the muffler, catalytic converter/muffler and diesel particulate filter.
Diesel engine exhaust contains products of combustion which may cause personal injury.Always start and operate the engine in a well ventilated area, and, if in an enclosed area, vent the exhaust to the outside.
Exhaust purifiers need limited maintenance. Cleaning of the purifier is the