SEAL-SHAFT 1355935 - Caterpillar

Note: Caterpillar recommends the use of the Cat ash service tool. Caterpillar does not endorse the use of non-Cat ash service tools. Improper cleaning or repair of the diesel particulate filter (DPF) can damage the DPF and the engine aftertreatment system. Contact your Cat dealer for more information.Minimum Maintenance Intervals
Refer to table 1 in order to determine the minimum maintenance interval for cleaning ash from the DPF. The intervals may vary because of the following operational factors: idle time for the engine, route and ambient conditions.Optimum intervals for cleaning the DPF require the use of the following products:
Oil that meets the performance requirements of the Caterpillar ECF-3 specification
Ultralow sulfur diesel fuel (ULSD)Refer to this Operation and Maintenance Manual , "Refill Capacities and Recommendations" or to this Operation and Maintenance Manual , "Fluid Recommendations" for more information.
Table 1
Minimum Maintenance Intervals for Cleaning Ash from the DPF
Engine Rating Comments Minimum Interval (Distance) Minimum Interval (Hours)
C7 190 350 241400 km (150000 mi) 4500
C9 285 425 Including RV 241400 km (150000 mi) 4500 Exceptions to Minimum Maintenance Intervals
A number of vehicle applications impose certain restraints on the locations of exhaust system components. These applications are primarily classified as medium service and heavy-duty service. The Environmental Protection Agency has determined that a DPF that has a reduced size may be installed in a vehicle if the DPF is cleaned more frequently.The EPA has issued a list of vehicle applications which may be suitable for a DPF with a reduced volume. The vehicle applications are listed below.
Beverage truck
Maintenance truck (with integral toolbox)
Trash collection truck (with hydraulic packing or picking apparatus)
Fire truck
Airport refueling truck (with exhaust directed toward the front of the truck)
Utility truck (with integral toolboxes and outrigger apparatus)
Snowplow (with the plow located under the chassis)
Dump truck
Concrete mixer
Car hauler (with integral open racks)
Street sweeper
Armored car
Day cab truck with no rear seat (only a day cab truck for which the entire DPF is located in front of the vertical plane established by the back side of the cab)Use the interval which occurs first in order to determine the minimum maintenance interval for a DPF with a reduced volume:
128750 km (80000 mi)
2400 hoursNote: This minimum maintenance interval is only valid for engines that are built in 2007, 2008, or 2009.Note: The following vehicles are not qualified for reduced maintenance intervals, even when the vehicles are included in the above list.
Any vehicle with an exhaust system that is mounted vertically
Any vehicle that has a DPF that is mounted behind the cab and outside of the frame railsConsult your Cat dealer in order to determine if a DPF with a reduced volume is installed in your vehicle. A DPF with a reduced volume requires a more frequent maintenance interval.Recommended Maintenance Interval
Caterpillar strongly recommends the cleaning of ash from the DPF at no later than 282000 km (175000 miles) from the initial start-up or from the last cleaning. The removal of ash from the DPF is a key factor in the following: the performance of the