ar1440b2019ta

Remove/install muffler with reduction catalytic converter

Tipo ar · tema 14.40 · versione 0201 · 2019-11-15

Valido per: Engine 924 in model 979.023/026/028/073/076/078/096/098

Non disponibile in “it”; mostrato in Inglese.

Collocazione

Gruppo funzionale 1 Motore › 14 Collettore di scarico, freno motore, impianto di depurazione gas di scarico › 14.40 Post-trattamento gas di scarico, AdBlue — Serie 979 (modelli 023, 026, 028, 073, 076, 078, 096, 098)

EinPAS 15 Motore › 15.40 Impianto di scarico/post-trattamento dei gas di scarico › 15.40.41 Collettore/tubo/silenziatore/flessibile dei gas di scarico — Serie 979 (modelli 023, 026, 028, 073, 076, 078, 096, 098)

EinPAS 15 Motore › 15.40 Impianto di scarico/post-trattamento dei gas di scarico › 15.40.50 Unità di post-trattamento dei gas di scarico — Serie 979 (modelli 023, 026, 028, 073, 076, 078, 096, 098)

Valido anche per motori/cambi: 924 ***

AR14.40-B-2019TA

Remove/install muffler with reduction catalytic converter

30.10.2019

Engine

924 in model 979.023/026/028/073/076/078/096/098

Remove/install muffler with reduction catalytic converter

A113a1

NOx sensor control unit

1

Electrical connection of the NOx sensor and control unit assembly (A113)

2

Temperature sensor electric connection after the catalyst (B116)

3

Temperature sensor electric connection before the catalyst (B115)

4

Support muffler fastening screws

5

Silencer with catalyser

B14.40-0149-12

Remove/install

1

Turn off ignition

2

Detach the exhaust piping at the muffler inlet with catalyst (5)

In order to prevent burn injuries, do not carry out the due work when the exhaust piping is hot.

.Exhaust pipe on silencer

*BA14.40-B-1027-02B

3

Detach the electrical connection from the NOx sensor and control unit assembly (A113) (1), the electrical connection of the temperature sensor after the catalyst (B116) (2) and the electrical connection of the temperature sensor before the catalyst (B115) (3)

4

Remove oil temperature sensor (B115) from the silencer inlet (5)

Remove/install temperature sensor upstream of SCR catalytic converter
.

AR14.40-B-2011TC

5

Remove the temperature sensor (B116) at the muffler outlet with catalyst (5)

Remove/install temperature sensor downstream SCR catalytic converter
.

AR14.40-B-2012TC

6

Remove the NOx sensor and control unit assembly (A113a1)

Remove/install NOx sensor with controller unit
.

AR14.40-B-2038TC

7

Support the muffler with catalyst (5) upon a hydraulic jack

Use an appropriate support between the muffler with catalyst (5) and the hydraulic jack.

8

Loosen the screws (4) on the muffler bracket

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

.Catalyst on the stringer

*BA14.40-B-1031-02B

9

Remove the muffler with catalyst (5) from the longitudinal member support

10

Install in reverse order

Exhaust gas after-treatment

Number

Designation

Engine 924.9, 926.9 except Liquid Only

BA14.40-B-1027-02B

Exhaust pipe on silencer

Nm

50

Exhaust gas after-treatment

Number

Designation

Engine 924.9, 926.9 except Liquid Only

BA14.40-B-1031-02B

Catalyst on the stringer

Nm

51

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