Fill AdBlue pressure reservoir

AP14.40-D-1490A

Fill AdBlue pressure reservoir

13.4.12

5.4.11

Method changed through new special tool



Removing



Pressure reservoir for pump module changed

BT14.40-W-0003-01A

1.1

Remove protective cap (7) from filler connection (2), unscrew valve cap (6)

 Old version.

1.2

Unscrew valve cap (9) from filler connection (2)

 New version.

2

Completely drain pressure reservoir by operating the valve element (5 or 8)

3

Unscrew valve element (5 or 8) from filler connection (2)

 Use assembly tool for valve element tire valves.

4

Screw new valve element (8) into filler connection (2)

 Use assembly tool for valve element tire valves.

Fill

5

Screw pump (4) onto filler connection (2)

Pump

*001589007100

6

Inflate pressure accumulator bladder to specified pressure

 If this pressure is too high, then this can be corrected by pressing the drain button (3) on the  pump (4).

Set specified pressure roughly 0.2 bar higher, because a slight pressure loss of this magnitude is unavoidable because of technical reasons when detaching the filling hose of the  pump (4) from the filler connection (2) .

*BE14.40-N-1001-02E

7

Unscrew filling hose of pump (4) from filler connection (2)

 Note down set pressure (minus 0.2 bar).



Checking

8

After a waiting period of 5 minutes, screw filling hose of pump (4) onto filler connection (2)

Observe waiting time. Otherwise the test result may be faulty.

Pump

*001589007100

9

Check pressure in pressure reservoir (2)

 If the current pressure matches the noted pressure:



*BE14.40-N-1001-02E

Proceed with operation step 10

 If a significant pressure loss is recognizable, the pressure reservoir has to be replaced: 

Remove/install pressure reservoir at pump module of exhaust aftertreatment system

AR14.40-D-2008AD

10

Unscrew filling hose of pump (4) from filler connection (2)

Pump

*001589007100



Install

11

Screw valve cap (9) onto filler connection (2)



*BA14.40-N-1035-02E

Number

Designation

Engine
900.9

BE14.40-N-1001-02E

Specified value for operating pressure of pressure reservoir

bar

3.2 ( 0.2)

Number

Designation

Engine
900.9
in model
668, 670

BA14.40-N-1035-02E

Valve cap on pressure reservoir

Nm

2