Check Compression Pressure - Ar01.00-S-1201EG
Model 907 with engine 274
| Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. Wear protective clothing when handling fuel. |
AS47.00-Z-0001-01A | |
| 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 | |
| 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 | ||
| Remove | |||
| 1 | Bring engine to operating temperature (approx. 80 °C). | ||
| 2 | Switch off ignition and store transmitter key outside of transmitter range (min. 2 m). | ||
| 3 | Remove spark plugs (R4). | Model 907 with engine 274 | AR15.12-D-1010TSC |
| 4 | Connect electrical feed lines (1) of compression pressure recorder (2) and crank engine using contact switch at compression pressure recorder (2). | Model 907 with engine 274 | AR01.10-D-0010-01TSC |
| Fig 3 | |||
| Fig 2 | |||
| 5 | Screw thread adapter (3) into spark plug thread. | Fig 1 | |
| 6 | Attach compression pressure recorder (2) to thread adapter (3). | Fig 3 | |
| Fig 2 | |||
| Fig 1 | |||
| Check | |||
| 7 | Crank engine via contact switch of compression pressure recorder (2) until pressure no longer increases in compression pressure recorder (2). | Installation tolerance or new value of compression pressure | *BE01.00-N-1001-04A |
| Compression pressure, permissible difference between the cylinders | *BE01.00-N-1002-04A | ||
| Wear limit or limit value of compression pressure | *BE01.00-N-1003-04A | ||
| Fig 3 | |||
| Fig 2 | |||
| Fig 1 | |||
| 8 | Perform test procedure in cylinder order on additional cylinders in same manner. | Installation tolerance or new value of compression pressure | *BE01.00-N-1001-04A |
| Compression pressure, permissible difference between the cylinders | *BE01.00-N-1002-04A | ||
| Wear limit or limit value of compression pressure | *BE01.00-N-1003-04A | ||
| Fig 3 | |||
| Fig 2 | |||
If min. compression pressure is not reached or the permissible difference between the individual cylinders is exceeded ↓ Check cylinder leakage. |
Fig 1 | ||
| AR01.00-S-1300EG | |||
| Install | |||
| 9 | Remove all tools. | Fig 3 | |
| Fig 2 | |||
| Fig 1 | |||
| 10 | Install spark plugs (R4). | Model 907 with engine 274 | AR15.12-D-1010TSC |
| Check | |||
| 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 | |
| 11 | Perform engine test run. While doing so, check engine for proper operation and leak tightness. |
COMPRESSION PRESSURE
| Number | Designation | Engine 274 in model 907 | |
|---|---|---|---|
| BE01.00-N-1001-04A | Installation tolerance or new value of compression pressure | bar | 13, 5...17, 5 |
COMPRESSION PRESSURE
| Number | Designation | Engine 274 in model 907 | |
|---|---|---|---|
| BE01.00-N-1002-04A | Compression pressure, permissible difference between the cylinders | bar | ≤ 1, 5 |
COMPRESSION PRESSURE
| Number | Designation | Engine 274 in model 907 | |
|---|---|---|---|
| BE01.00-N-1003-04A | Wear limit or limit value of compression pressure | bar | 11, 5 |