Remove/install aneroid capsule for boost pressure control flap

AR09.40-P-1002-01CD

Remove/install aneroid capsule for boost pressure control flap

Engine

651 in model 166, 172, 204, 205, 207, 212, 218, 221, 222, 253

 Turbocharger

Number

Designation

Engine 651

BA09.40-P-1012-01P

Nut, vacuum unit to turbocharger

M6

Nm

9

Repair materials

Number

Designation

Order number

BR00.45-Z-1027-07A

"Yellow" locking paint

Lackfabrik Bäder GmbH & Co. KG
Dieselstrasse 34
73734 Esslingen
Germany
Tel.: +49 711 381607
Fax. +49 711 383092

1

Detach control line (1) from boost pressure control flap aneroid capsule (2).

2

Engine 651 in model 222
Remove locking plate at the control rod (3).

 Mount lock washer is mounted over the nuts (4, 5) on the control rod (3).

3

Loosen nut (5).

4

Unscrew nut (4) on control rod (3).

5

Unscrew nuts (6) on boost pressure control flap aneroid capsule (2).

6

Remove boost pressure control flap aneroid capsule (2).

7

Introduce boost pressure control flap aneroid capsule (2).

 Insert insulating sleeve on the holder side.

8

Tighten nuts (6)   .

9

Screw nuts (5) in direction of diaphragm capsule of charge pressure control valve (2), to obtain the necessary clearance.

10

 Attach hand-held vacuum pump and  vacuum tester.

11

Actuate boost pressure control flap aneroid capsule (2) with vacuum all the way.

 If the boost pressure control flap aneroid capsule (2) is new, actuate this a number of times with vacuum of at least 700 mbar.

12

Press lever (7) up to the end stop in the direction of boost pressure control flap aneroid capsule (2) and hold.

13

Screw down nut (4) without clearance against lever (7).

14

In order to achieve the necessary spring preload, mark nut (4) and screw onto thread by exactly 3.5 further revolutions.

15

Secure control rod (3), through locking a nut (5) against a nut (4).

 Hold nut (4) firmly in the process using a counter wrench.

16

Secure nuts (4, 5, 6) using Yellow" locking paint.

17

Engine 651 in model 222
Mount lock washer over the nuts (4, 5) on the control rod (3).

18

Place control line (1) on connection for boost pressure control flap aneroid capsule (2).