ADBLUE® Delivery Unit
Special tools and workshop equipment required
- Special Wrench T50014
Removing
Follow all safety precautions SAFETY PRECAUTIONS => Observe the following when working on the reducing agent metering system: .
Follow the guidelines for cleanliness. Refer to CLEAN WORKING CONDITIONS .
-- Remover the reducing agent active tank. Refer to ADBLUE® ACTIVE TANK .
Place a clean cloth under the separating location to catch any reducing agent that may leak out.
The reducing agent can cause skin irritation.
- Avoid contact with skin and eyes! Always wear protective gloves and safety glasses.
- If reducing agent should get on your skin, wash it off immediately with soap and water.
- If reducing agent gets in your eye, rinse the eye for several minutes with water.
- Never inhale or swallow the reducing agent!
- Should you swallow any reducing agent, rinse your mouth, drink plenty of water and contact a doctor immediately.
-- Press the release button and disconnect the supply line -3- and return line -1-.
-- Remove the connectors -5- on the bracket and free them up.
-- Remove the union nut -2- using the T50014 and carefully remove the reducing agent delivery unit -4- upward.
Danger due to reducing agent leaking out.
- Note that there is still some reducing agent left inside the active tank and reducing agent delivery unit.
Installing
- For the correct tightening specifications, refer to ADBLUE® ACTIVE TANK AND ATTACHMENTS OVERVIEW .
Replace seal.
Thoroughly clean the sealing ring surfaces.
-- Install the reducing agent delivery unit -2- in the active tank. Slide the heating element through the gap between the reducing agent delivery unit and installation opening into the active tank.
-- Stretch the new sealing ring -1- over the reducing agent delivery unit and place it on the installation opening.
-- Bring the reducing agent delivery unit into the installation position:
- The tab -arrow A- on the reducing agent delivery unit must fit into the groove -arrow B- on the rim of the opening for the active tank.
-- Install the new union nut -2- so that the marking -3- lines up a the beginning of the first thread -4-. The arrow marking -1- on the active tank is found here.
-- First tighten the new union unit by hand, then tighten it using the T50014 for a total of 5 /4 turns (450°).
- The marking -3- on the new union nut -2- must align with the marking -1- (the arrow lines up with the lines on the side).
The rest of the installation is performed in reverse order of removal, noting the following:
-- Install the reducing agent active tank. Refer to ADBLUE® ACTIVE TANK .
-- Adapting adaptation value after draining AdBlue® or replacing components. refer to ADAPTING ADAPTATION VALUE AFTER DRAINING ADBLUE® OR REPLACING COMPONENTS .