1 | Check valve |
2 | Bolts |
3 | Valve cover |
4 | O-rings |
G43.30-3138-06
5 | Puller |
T43.30-0055-01
| Remove | ||
1 | Switch off ignition | ||
2 | Detach the engine compartment paneling under the transmission | See information from vehicle manufacturer. | |
Danger ! | Risk of injury caused by touching hot retarder and by scalding from hot retarderoil. Risk of injury to skin or eyes caused by retarder oil escaping under high pressure | Do not carry out any work unless retarder is switched off. Wear suitable protective clothing and safety glasses when working on the hot retarder. | |
3 | Remove screws (2) | ||
4 | Detach valve cover (3) | ||
5 | Push extractor (5) onto check valve (1) until it engages | Commercially available devices/tools | |
6 | Pull check valve (1) out of hydrodynamic retarder housing | Observe the assembly positions of the components of the check valve (1). | |
7 | Detach O-rings (4) | ||
| Check | ||
8 | Check the check valve (1) for wear and condition | To check the guide piston, push the valve disk all the way in. | |
If there are problems | |||
| |||
Replace the check valve (1). | |||
| Install | ||
9 | Attach new O-rings (4) | ||
10 | Press check valve (1) into hydrodynamic retarder housing using a suitable tool | Observe the assembly positions of the components of the check valve (1). | |
11 | Attach valve cover (3) and fasten with screws (2) | Bolt and washer assembly for check valve (outlet) | |
12 | Install engine compartment paneling below transmission | See information from vehicle manufacturer. | |
13 | Perform a test drive and bleed hydrodynamic retarder | If present and possible, switch off the foot control of the hydrodynamic retarder. Move the vehicle at 50 km/h and switch on the hydrodynamic retarder 5 times in the first brake stage for approx. 5 s each time. |
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