Remove/Install SCR Catalytic Converter - Ar49.20-D-8120TSR
Engine 642 in model 907, Engine 651 in model 907
Modification notes
| 12.12.2018 | Method modified | Operation steps 1, 7 |
| Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. | AS49.00-Z-0001-01A | |
| Risk of injury. Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | ||
| Notes on self-locking nuts and bolts | AH00.00-N-0001-01A | ||
| Remove/install | |||
| 1 | Remove AdBlue® line and electrical connecto of the AdBlue® metering valve. | AR49.20-D-2000TSR | |
| 2 | Remove NOx sensor with control unit downstream of SCR catalytic converter (1) from SCR catalytic converter (1). | AR49.20-D-2062TSV | |
| 3 | Remove soot particulate sensor downstream of SCR catalytic converter (1) from SCR catalytic converter (1). | AR07.04-D-0017TSV | |
| 4 | Remove tailpipe (5). | If installed. | |
| AR49.10-D-7155TSR | |||
| 5 | Remove clamp (3). | ↓ Replace clamp (3). |
*BA49.20-N-1003-02TSR |
| 6 | Remove SCR catalytic converter (1). | Depending on the findings, ↓ replace damaged decoupling elements (2). |
|
| 7 | Install new AdBlue® metering valve. | If a new SCR catalytic converter (1) is installed. | AR49.20-D-2000TSR |
| 8 | Install in the reverse order. | ||
| Check | |||
| 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. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | AS00.00-Z-0005-01A | |
| 9 | Perform engine test run and check exhaust system for leaks in area of SCR catalytic converter (1). |
| Number | Designation | Model 907 with engine 642, 651 | |
|---|---|---|---|
| BA49.20-N-1003-02TSR | Clamp, diesel particulate filter to SCR catalytic converter | Nm | 35 |