AR14.40-D-2019AE | Remove/install muffler with reduction catalytic converter | 24.6.10 |
ENGINES 900.917 /918 /919 in MODEL 668, 670 with CODE (KH1) Main muffler at left of frame
D88.30-1192-06
Shown on model 668.32 (platform truck)
1 Lateral underride guard
2 Electrical connector
(model 668.32/33, 670.32/33/42/43)
3 Electrical line
(model 668.32/33, 670.32/33/42/43)
4 Retaining clamp
(model 668.32/33, 670.32/33/42/43)
5 Bolts
E73 Side marker lamp
(model 668.32/33, 670.32/33/42/43)
D14.40-0098-09
Shown on model 668.32 (platform truck)
6 Muffler with reduction catalytic converter
7 Electrical connector
8 Electrical connector
9 Exhaust pipe
10 Clamp
11 Exhaust end pipe (for vehicle with a long exhaust end pipe)
B100/1 Temperature sensor upstream of SCR catalytic converter
B101/1 Temperature sensor downstream of SCR catalytic converter
A Vehicle with a short exhaust end pipe
B Vehicle with a long exhaust end pipe
12 Exhaust end pipe (for vehicle with a short exhaust end pipe)
13 Clamp
14 Mount for the oval CAT
15 General purpose counter top
16 Multifunctional lifting/holding device
17 Bolt
18 Lashing strap
D14.40-0097-11
Shown on model 668.35 (panel van)
6 Muffler with reduction catalytic converter
19 Bolt
20 Nut
21 Electrical connector (as of chassis end number 127771)
22 Control unit (as of chassis end number 127771)
B104 NOx sensor (as of chassis end number 127771)
| Remove/install | ||
1 | Disconnect electrical connector (2) on side-marker lamp (E73) | Only for model 668.32/33, 670.32/33/42/43 | |
2 | Detach electrical line (3) from retaining clip (4) on underride guard (1) | Only for model 668.32/33, 670.32/33/42/43 | |
Installation: Check retaining clips (4) for tight seating; replace if necessary. | |||
3 | Unscrew bolts (5) and detach underride guard on the side (1) with an assistant | Installation: Align underride guard at the side (1). | |
4 | Remove exhaust pipe (9) on exhaust flex pipe, open clamp (10) and detach exhaust pipe (9) from muffler with reduction catalytic converter (6) | Do not overstretch exhaust flex pipe. | |
5.1 | Open clamp (13) and detach exhaust end pipe (11) from muffler with reduction catalytic converter (6) (Picture B) | Only for vehicles with a long exhaust end pipe (11). | |
5.2 | Open clamp (13) and detach exhaust end pipe (12) from muffler with reduction catalytic converter (6) (Picture A) | Only when replacing muffler with reduction catalytic converter (6) for vehicles with short exhaust end pipe (12). | |
6 | Disconnect electrical connectors (7, 8) | ||
7 | Disconnect electrical connector (21) on control unit (22) for NOx sensor (B104) | Only vehicles as of chassis end number 127771 | |
Expose electrical line and control unit (22) for NOx sensor (B104). | |||
8 | Remove bolts (19) and control unit (22) | Only vehicles as of chassis end number 127771 | |
Hold nut (20) steady. | |||
9 | Complete multifunctional lifting/holding device (16) with a general purpose counter top (15) and mount for the oval CAT (14) | Position mount for the oval CAT (14) on the general purpose counter top (15) as far as possible to the rear. | |
Multifunctional lifting/holding device gotis://K_68-80_07.0 | |||
Use an additional general purpose counter top and mount for the oval CAT. | |||
10 | Position multifunctional lifting/holding device (16) under the muffler with reduction catalytic converter (6) and raise slightly until the mount for the oval CAT (14) lies on the muffler with reduction catalytic converter (6) | Position multifunctional lifting/holding device (16) with general purpose counter top (15) and mount for the oval CAT (14) under the muffler with reduction catalytic converter (6) in such a way that no other components can be damaged during lifting. | |
Multifunctional lifting/holding device gotis://K_68-80_07.0 | |||
Use an additional general purpose counter top and mount for the oval CAT. | |||
11 | Secure muffler with reduction catalytic converter (6) with a tie-down strap (18) on the general purpose counter top (15) and mount for the oval CAT (14) against falling | Multifunctional lifting/holding device gotis://K_68-80_07.0 Use an additional general purpose counter top and mount for the oval CAT. | |
12 | Remove bolts (17) on muffler with reduction catalytic converter (6) | | |
13 | Lower multifunctional lifting/holding device (16) and pull forward muffler with reduction catalytic converter (6) under the vehicle | Lift vehicle, if necessary at the vehicle axle. | |
Multifunctional lifting/holding device gotis://K_68-80_07.0 | |||
Use an additional general purpose counter top and mount for the oval CAT. | |||
14 | Remove temperature sensor upstream of SCR catalytic converter (B100/1) | Only when replacing muffler with reduction catalytic converter (6). | |
15 | Remove temperature sensor downstream of SCR catalytic converter (B101/1) | Only when replacing muffler with reduction catalytic converter (6). | |
16 | Remove NOx sensor (B104) | Only vehicles as of chassis end number 127771 | |
Only when replacing muffler with reduction catalytic converter (6). | |||
17 | Install in the reverse order | ||
Danger! | Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. | |
18 | Perform engine test run and check the area around the muffler with reduction catalytic converter (6) for leaktightness and then stop engine |
Exhaust aftertreatment, Blue Tec
Referenced documents
- ar1440d2011ae Remove/install temperature sensor upstream of SCR catalytic converter
- ar1440d2012ae Remove/install temperature sensor downstream of SCR catalytic converter
- as0000z000501a Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.