Shown on model 906 |
1 | Compression pressure recorder |
2 | Screw-in piece |
D01.00-1130-06
Danger ! | 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. | |
Danger ! | 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. | |
Danger ! | Risk of explosion caused by fuel igniting. Risk of injury to skin and eyes caused by fuel spraying out at high pressure | Remove all ignition sources from hazard area. | |
Danger ! | 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. | |
| Remove/install | ||
1 | Start engine and warm up to an operating temperature of approx. 80°C | The engine must be up to operating temperature to check the compression pressure. | |
2 | Switch off ignition | ||
3 | Remove glow plugs |
| |
Engine 651 in model 900 | |||
4 | Connect compression recorder (1) and crank engine over the starter |
| |
Engine 651 in model 636, 639 | |||
To remove combustion residues from the cylinders. | |||
5 | Screw screw-in piece (2) into the glow plug hole by hand | Screw-in fitting | |
Screw-in fitting | |||
6 | Connect compression recorder (1) to screw-in piece (2) | Compression tester | |
| Check | ||
7 | Wheel spin engine with starter and check compression pressure | Crank engine using contact switch of compression recorder (1) through at least eight revolutions. | |
Installation tolerance or new value of compression pressure | |||
Wear limit or limit value of compression pressure | |||
Compression pressure, permissible difference between the cylinders | |||
8 | Check compression pressure of the remaining cylinder in the same way | Compression pressure, permissible difference between the cylinders | |
Wear limit or limit value of compression pressure | |||
Installation tolerance or new value of compression pressure | |||
If the minimum compression pressure is not reached or the permissible difference between the individual cylinders is exceeded, check for cylinder leakage, see: | |||
| |||
Check cylinder leakage. | |||
9 | Install in the reverse order |
640 589 00 63 00
Screw-in fitting
001 589 76 21 00
Compression tester
642 589 02 63 00
Screw-in fitting
Referenced documents
- ar0100d1300we Check cylinders for leaks
- ar0110d0110we Crank engine with starter
- ar0110s0110s Crank engine with starter
- ar1520d4111we Remove/install glow plugs
- ar1520s4111sj Remove/install glow plugs
- as0000z000201a Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.
- 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.
- as0716z000101a Risk of explosion caused by fuel igniting. Risk of injury to skin and eyes caused by fuel spraying out at high pressure
- as4700z000101a 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.