wc_tx003614gb_FM10.fm
172
Mobile Generator
General Maintenance
16.12 Replacing the Aftertreatment DEF Dosing Unit Filter
When
Replace the aftertreatment Diesel Exhaust Fluid (DEF) dosing unit filter every 4500
hours or 3 years.
Requirements
■ Machine stopped
■ Replacement filter element
■ Strap wrench or filter wrench
■ Warm water
■ Clean cloth
■ Container of suitable size to collect residual DEF in filter housing
Procedure
Perform the procedure below to replace the aftertreatment DEF dosing unit filter.
Note: In the interests of the environment protection, place a container under the
filter cap to collect the residual DEF liquid that may be in the filter housing. Dispose
of the DEF in accordance with the environment protection legislation.
1. Remove the filter cap (a).
This procedure continues on the next page.
WARNING
Personal injury hazard. DEF contains urea. Do not get the substance in your eyes.
► In case of contact, immediately flush eyes with large amounts of water for a
minium of 15 minutes.
WARNING
The DEF line connecting the aftertreatment DEF dosing unit to the aftertreatment
DEF dosing valve is under low pressure and should not be disconnected while the
engine is running or before the system has completed the purge process after
engine shutdown. Disconnecting the DEF line while under low pressure could
cause DEF to spray.
► Do not disconnect the DEF line while under low pressure.