AR01.50-W-2000R | Remove/install hydraulic constant throttle | 30.6.10 |
ENGINE 926.9 in MODEL 949 with TRANSMISSION 715.5
W01.50-1045-06
1 Electrical connector
2 Hydraulic line
3 Housing
4 O-ring
Y49 Hydraulic constant throttle solenoid valve
| Remove/install | ||
1 | Switch off ignition | ||
2 | Open engine hood and raise to vertical position | Installation: Only close engine hood after the leak test. | |
Danger! | Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by 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. Wear protective gloves, protective clothing and safety glasses. | |
3 | Remove expansion reservoir with carrier | ||
| |||
| Notes on coolant | ||
4 | Disconnect electrical connector (1) | ||
5 | Detach hydraulic line (2) | Installation: Replace sealing rings for hydraulic line (2). | |
6 | Remove housing (3) with hydraulic constant throttle solenoid valve (Y49) | Collect engine oil that flows out. | |
Installation: Replace seal on housing (3). | |||
| |||
7 | Remove hydraulic constant throttle solenoid valve (Y49) at housing (3) | Installation: Check O-ring (4); replace constant throttle solenoid valve (Y49) if necessary. | |
8 | Install in the reverse order | ||
9 | Inspecting cooling system for leaks | ||
10 | Check engine oil level at display; correct if necessary | Observe engine oil grade set in maintenance system or Specifications for Operating Fluids. | |
| Notes on engine oil | ||
Danger! | Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. | |
11 | Start engine and allow to run in idle for 10 s until the oil pressure has built up, then run the engine at varying speeds | ||
12 | Turn off the engine and check area of hydraulic constant throttle solenoid valve (Y49) for leaks |
Constant throttle
Number | Designation | Engine | ||
BA01.50-N-1001-01C | Hydraulic constant throttle solenoid valve on crankcase | Nm | 35 | |
Clamping device
000 589 54 37 00
Referenced documents
- ah1800n010101b Notes on engine oil
- ah2000n208001a Notes on coolant
- ar2000w1010r Inspecting cooling system for leaks
- ar2030w495001r Remove, install expansion reservoir with carrier
- ar8840w1000r Opening engine hood, moving to upright position and closing
- 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.
- as2000z000101a Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.