AR07.04-W-0090A | Remove/install gas pressure sensor | 9.12.10 |
ENGINES 902.9, 906.9 in MODEL 957 with CODE (MS8) natural gas engine
W07.04-1060-11
1 Electrical connector
B109 Gas pressure sensor
Modification notes
2.12.10 | Repair materials - added. | Operation step 6 | |
Check the gas system for leaktightness in accordance with the national regulations - added. | Step 8 |
| Remove | ||
Danger! | Risk of explosion caused by escaping natural gas or by overheated compressed-gas tanks when working on natural gas powered vehicles. Risk of frostbite to parts of the body caused by escaping natural gas and by touching components near the valves when emptying compressed-gas tanks. Risk of poisoning or risk of suffocation caused by inhaling natural gas. | Remove any sources of ignition. Ensure that work area is adequately ventilated. Wear heat protective gloves. | |
| Notes on work safety regulations for vehicles with natural gas-powered engines | ||
1 | Close gas shutoff valves at compressed-gas tanks | ||
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. | |
2 | Start engine and run on idle until the engine goes off by itself | In this way residual gas is used up in the lines and components. | |
3 | Switch off ignition | ||
4 | Disconnect electrical connector (1) from gas pressure sensor (B109) | ||
5 | Remove gas pressure sensor (B109) | ||
| Install | ||
6 | Install gas pressure sensor (B109) | Replace thread sealant on gas pressure sensor (B109). | |
| |||
7 | Connect electrical connector (1) to gas pressure sensor (B109) | ||
8 | Check gas system for leaktightness in accordance with the national regulations | In Germany the GAP is performed according to §41a of the German vehicle licensing regulations. |
Gas injection and ignition system
Number | Designation | Engine Engine 906.9 with code MS8 | |
BA07.54-N-1016-01A | Gas pressure sensor on gas pressure line | Nm | 25 |
Repair materials
Number | Designation | Order number |
BR00.45-Z-1054-01A | PTFE thread sealing tape | B.E.S.T. Fluidsysteme GmbH Düsseldorf |