AP49.00-T-4950A | Inspect exhaust system for leaks and proper condition | 27.10.98 |
ENGINE 402, 441, 446, 457.941 /944 in MODEL NMB613
ENGINE 447, 457.942, 489 in MODEL NMB671
T49.00-0002-01
1 Metal hose
2 Sliding element
3 Pipe clamp
4 Assembly slot
Danger! | Risk of injury to skin and eyes from handling hot or glowing objects. | Wear safety gloves, protective clothing and safety glasses, if necessary. | |
1 | Detach engine compartment encapsulation | ||
| Testing | ||
2 | Check exhaust system for external damage | ||
3 | Check metal hoses (1), collapsible sections (2), pipe clamps (3) and suspension elements for condition and proper assembly | ||
4 | Check assembly slots (4) at pipe connections for sufficient overlap | Traces of soot are an indication of leakage. | |
Danger! | Risk of accident as vehicle may start off by itself with the engine running. Risk of injury as working around the engine during start-up or while running may result in contusions and burns | Secure vehicle to prevent it from moving. | |
5 | Start engine and run at idling speed | ||
6 | Seal off exhaust tailpipes | Seal with suitable aids (e. g. plugs, plate etc.), in order to increase a high exhaust gas pressure. | |
7 | Check exhaust system at pipe and flange connections for escaping exhaust gas | Particularly at points close to sound proofing and insulation materials. Leaky parts of the exhaust system have to be replaced (against separate order). | |
8 | Switch off engine | ||
9 | Attach engine compartment encapsulation |