16 19 090 Removing and Installing/Replacing SCR Delivery Module

16 19 090 Removing and installing/replacing SCR delivery module







IMPORTANT:
Ensure adequate ventilation in the workbay.
Avoid skin contact (wear gloves).
Avoid eye contact (safety goggles).
Urea/water mixture can escape when components carrying urea/water mixture are released. Have a collecting vessel ready.
Observe country-specific waste disposal regulations.







IMPORTANT:
Maintain conditions of absolute cleanliness.
Connections and covers of lines carrying urea/water mixture must be cleaned thoroughly with water after each removal or before each installation.
Thoroughly clean the working area with water after repair work.
Use fluff-free cloths for cleaning (see ETP Electronic Parts Catalogue WAYPALL L20 cleaning cloths).
Close connections and lines.
Thoroughly clean special tool with water after each use.







Necessary preliminary tasks:
- Remove active reservoir







Disconnect plug connection (1).







Release screws (1).

Installation note:
Tightening torque 16 19 5AZ.
Pull off SCR delivery module (2) in upward direction.







Installation note:
Replace gasket (1) on active reservoir (2).







Installation note:
Replace O-ring (1) on SCR delivery module (3).

IMPORTANT: Make sure without fail that sleeve (2) is located under O-ring (1).