PIPE 2964742 - Caterpillar

Inspection of the Filter Module
The inlet surface of the filter module will be black due to a coating of soot. The outlet surface should show no evidence of soot.Note: Inspect the inlet surface and inspect the outlet surface of the filter module for missing or cracked ceramic pieces. Replace the filter module if any ceramic pieces are damaged or lost. A damaged filter module will not meet the emissions requirements. A damaged filter module must be replaced. Refer to the "Installation of the Diesel Particulate Filter" information in this article.Filter Module Cleaning Equipment
Wear goggles, gloves, protective clothing and a dust respirator certified by the National Institute for Occupational Safety and Health (NIOSH) and by the Mine Safety and Health Administration (MSHA) when cleaning the diesel particulate filter. Failure to do so could result in personal injury.
The following equipment is required to clean the DPF:
Dry pressurized air supply with 690 kPa (100 psi)
A high pressure sprayer with a short rubber hose on the end of the nozzle
229-0766 filter bag or equivalent filter bagFilter Bags
The filter bags are available from your Caterpillar dealer. The filter bags will trap particles as small as 5 microns. A filter bag can be used 5 to 10 times.Note: Disposal of filter bags and disposal of the contents of the filter bags should be in accordance with the following applicable laws and regulations:
Federal laws
State laws
Local laws or local regulations Disposal of the filter bags and disposal of the contents of the filter bags should also be in accordance with best management practices.Cleaning of the Filter Module
Illustration 2 g01194909
(1) Outlet surface (2) Rubber hose (3) Filter module (4) Inlet surface (5) Filter bagUse the following procedure in order to properly clean the filter module.
Place a filter bag around the inlet side of the filter module. Secure the filter bag to the filter module with the draw string. Position the filter module in a vertical position. Positioning the filter module in this manner will allow the ash to fall into the bag.
Blow the ash from the filter module with compressed air. The compressed air must be regulated at 690 kPa (100 psi). The compressed air must be reduced to 205 kPa (30 psi) when the nozzle is deadheaded and with effective chip guarding (if applicable) and personal protective equipment. The air should be dry and free from oil. Do not damage the DPF with the nozzle.
The nozzle should be 12.70 mm (0.5 inch) away from the filter module. By using slow circular motions, direct the compressed air through the filter module. Work from the center of the filter module toward the outside of the filter module. Cleaning the DPF will require 30 to 40 minutes. Larger filters generally require longer cleaning times.Installation of the Diesel Particulate Filter
Illustration 3 g01199447
(1) Inlet module (2) New gasket (3) Clamp (4) Filter module (5) Clamp (6) New gasket (7) Outlet moduleA directional arrow on the filter module represents the direction of flow through the diesel particulate filter. The DPF must be installed with