ENGINE MAINTENANCE - Maintenance Procedures If a DPF is wet cleaned, then the maintenance intervals may be switched to stay on the dry cleaning strategy or start with a wet cleaning strategy. See Diesel Particulate Filter Service Strategy on page 72. does not apply to a unit that has been dry cleaned. See Diesel Particulate Filter Service Strategy on page 72 and Diesel Particulate Filter (DPF) Dry Cleaning on page 72 for details before making a decision. Please contact your authorized dealer for clarifications. NOTE If you dry clean the DPF at the prescri- bed interval, the cleaning must follow that same interval.
Do not switch the service strategy from dry cleaning to wet cleaning and vise versa. Switching service strategies may void warranty. 2 Diesel Particulate Filter (DPF) Wet Cleaning DPF can be wet cleaned at a different interval than a dry cleaning, but do not mix the two intervals. Diesel Exhaust Fluid (DEF) Filter Maintenance tasks for diesel exhaust fluid filter 1. Dry clean using DPF cleaning machine according to the maintenance schedule. 2. Replace filter if necessary. A new DPF unit may be wet cleaned instead of being dry cleaned. This interval only applies to new DPF units. It Perform these maintenance procedures according to the Preventative Maintenance Schedule.
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