1 | Pump module |
2 | Accumulator filling connection |
3 | Depressurizing button |
4 | Manual pressure pump |
A | Old performance |
5 | Valve |
6 | Valve cover |
7 | Protection cover |
B | New performance |
8 | Valve |
9 | Valve cover with seal |
W14.40-1527-06
| Remove | ||
1.1 | Remove protection cover (7) on filling connection (2) and release valve cover (6) | Old performance. | |
1.2 | Release valve cover (9) on filling connection (2) | New performance. | |
2 | Actuate the valve (5 or 8) and completely empty the pressure accumulator | ||
3 | Release valve cover (5 or 8) on filling connection (2) | Use the tool for installing the tire valves. | |
4 | Install a new valve (8) onto the filling connection (2) | Use the tool for installing the tire valves. | |
Load | |||
5 | Install the pump (4) in the filling connection (2) | Pump | |
6 | Load pressure accumulator chamber to the prescribed pressure by using the pressure pump (4) | If pressure is too high, it can be corrected by pressing the depressurizing button (3) on the pump (4). | |
For technical reasons that can not be avoided, adjust the pressure approx. 0.2 bar higher than prescribed, because pressure drops in this order when the pump supply hose (4) is detached at the supply connection (2). | |||
Engine 457.9Nominal operating pressure value in pressure accumulator | |||
7 | Release pump hose (4) from filling connection (2) | Register the adjusted pressure (except for the 0.2 bar). | |
Inspect | |||
8 | After 5 min, install the pump hose (4) onto the filling connection (2) | Keep the waiting time. Otherwise, you may have the wrong test result. | |
Pump | |||
9 | Check the pressure on the pressure accumulator (2) | ||
| Remove/install pressure reservoir at pump module of exhaust aftertreatment system | Engine 924.9, 926.9 | |
| Remove/install pressure reservoir at pump module of exhaust aftertreatment system | Engine 457.9 | |
If current pressure matches the registered pressure: | |||
If you notice a clear pressure drop, replace the pressure accumulator. | |||
Engine 457.9Nominal operating pressure value in pressure accumulator | |||
10 | Release pump hose (4) from filling connection (2) | Pump | |
| Install | ||
11 | Install valve cover (9) on filling connection (2) | Engine 924.9, 926.9Valve cover on the pressure accumulator | |
Engine 457.9Valve cover on the pressure accumulator |
001 589 00 71 00
Pump