W43.30-1654-09
1 | Coolant connection (feed line) | 6 | Threaded fitting | 11 | Seal | ||
2 | Coolant hose | 7 | Screw | 12 | Sealing ring | ||
3 | Clip | 8 | Screw | 13 | Sealing ring | ||
4 | Locking pressure line | 9 | Compressed-air line | ||||
5 | Threaded fitting | 10 | Valve block |
Warning | 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 death to implant wearers from working on retarder | As a safe distance from the retarder, a minimum distance of 100 cm is to be maintained between the retarder and the body parts of the affected person for people with implants. | |
Warning | Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. | |
Topical note | Notes on influence of retarder on coolant/coolant sludging | ||
Topical note | Notes on coolant | ||
Topical note | Notes on self-locking nuts and bolts | ||
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
| Remove/install | ||
1 | Remove soundproofing | ||
2 | Drain coolant at drain screws on retarder and on coolant connection (1) | ||
| Connection fitting for coolant return line on retarder modified | ||
Engine 936.9 | |||
Engine 470.9, 471.9, 473.9 | |||
| |||
3 | Unscrew union nut of locking pressure line (4) | ||
| Locking pressure feed line, modified | ||
Counterhold threaded fitting (5, 6). | |||
Union nut, retarder blocking pressure line to threaded fitting | |||
Box wrench bit | |||
4 | Remove clamp (3) on coolant hose (2) |
| |
Depending on accessibility, detach clamp (3) for coolant hose (2) on either the retarder side or the line side. | |||
Pliers | |||
5 | Remove bolt (7) and remove locking pressure line (4) | Collect flowing out coolant in a suitable vessel. | |
Installation: Apply thread locking compound to bolt (7). | |||
Loctite 243 | |||
Bolt, coolant connection to retarder housing | |||
6 | Remove bolt (8) and remove coolant connection (1) from valve block (10) | Push air line (9) to one side. | |
Installation: Apply thread locking compound to bolt (8). | |||
Bolt, coolant connection to retarder housing | |||
Loctite 243 | |||
7 | Pull coolant connection (1) out of coolant hose (2) | Installation: Before inserting coolant connection (1) slide clamp (3) onto coolant hose (2). | |
Wacker® silicon paste P | |||
8 | Remove threaded fitting (5) from coolant connection (1) | Only when coolant connection (1) is replaced or if the threaded fitting (5) is leaky. | |
Installation: Replace threaded fitting (5) with sealing ring (12). | |||
Threaded fitting to coolant connection | |||
9 | Remove threaded fitting (6) from retarder housing | Only if the threaded fitting (6) is leaky. | |
Installation: Replace threaded fitting (6) with sealing ring (13). | |||
Threaded fitting to retarder housing | |||
10 | Install in the reverse order |
470 589 01 37 00
Pliers
000 589 68 03 00
Box wrench bit