W13.30-1103-08
1 | Coolant pipe (return) | 6 | Compressed-air line | 10 | Exhaust pipe - only for vehicles with code MS4 (BLUETEC 4 (Euro IV)) or code MS5 (BLUETEC 5) | ||
2 | Coolant pipe (feed) | 7 | 2-cylinder compressor | 11 | Bottom heat shield | ||
3 | Hydraulic line (hydrostat fan drive) | 8 | Power steering pump | 12 | Resonator | ||
4 | Hydraulic line (hydrostat fan drive) | 9 | Upper heat shield - only for vehicles without code MS4 (BlueTec 4 (Euro IV)) or code MS5 (BlueTec 5) | 13 | Air intake line | ||
5 | Coolant line |
W13.30-1104-08
7 | 2-cylinder compressor | 15 | Holder - only for vehicles with code AN8 (Hydraulically steered leading axle) or code AN9 (Hydraulically steered trailing axle) | 17 | Coolant line | ||
14 | Holder (hydrostat fan drive) | 16 | Coolant line | Y49 | Hydraulic constant throttle solenoid valve - only for vehicles without code (MS8) (natural gas engine) |
Warning | 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. | |
Warning | Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure.Risk of poisoning from swallowing hydraulic fluid. | Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses. | |
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. | |
Caution | Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil | Wear protective gloves, protective clothing and safety glasses. | |
Topical note | Notes on coolant | ||
Topical note | Notes on self-locking nuts and bolts | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
Notes on engine oil | |||
| Remove/install | ||
1 | Drain off coolant |
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Engine 902.9 without code MS8 (Natural gas engine), engine 926.9 | |||
2 | Drain off hydraulic fluid from hydrostatic fan drive | ||
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3 | Remove exhaust pipe (10) | Only for vehicles without code MS4 (BLUETEC 4 (Euro IV)) or code MS5 (BLUETEC 5) | |
4 | Remove upper heat shield (9) | Only for vehicles without code MS4 (BLUETEC 4 (Euro IV)) or code MS5 (BLUETEC 5) | |
5 | Remove coolant pipes (1, 2) | ||
6 | Remove lower heat shield (11) | ||
7 | Remove coolant line (5) | Collect coolant which flows out. | |
8 | Remove hydraulic line (4) and loosen hydraulic line (3) and lay to the side | ||
9 | Remove bracket (15) for the hydraulic lines of the auxiliary steering from the dual compressor (7) or from the bracket (14) | Only for vehicles with code AN8 (Hydraulically steered leading axle) or code AN9 (Hydraulically steered trailing axle) | |
Do not separate hydraulic lines. | |||
10 | Remove compressed-air line (6) of the dual compressor (7) up to the next threaded connection and check for carbonization | If the compressed-air line (6) is carbonized. | |
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Replace compressed-air line (6). In addition, check compressed-air lines between the dual compressor (7), the compressed-air drier, and the four-circuit protection valve. | |||
If the compressed-air lines between the dual compressor (7), the compressed-air drier, or the four-circuit protection valve are carbonized. | |||
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Replace respective compressed-air line. | |||
11 | Remove fitting of the compressed-air line (6) from the dual compressor (7) | Installation: Replace sealing ring. | |
Fitting, compressed air line to compressor | |||
12 | Remove air intake line (13) from the dual compressor (7) and from the resonator box (12) | ||
13 | Remove hydraulic constant throttle solenoid valve (Y49) | Only on vehicles without code (MS8) natural gas engine | |
14 | Remove power steering pump (8) | ||
15 | Remove holder (14) on crankcase | ||
16 | Remove coolant line (16, 17) from the dual compressor (7) | Banjo bolt, coolant line to compressor | |
17 | Remove dual compressor (7) | Collect escaping engine oil. | |
Installation: Turn drive gear, if necessary. Tighten bolts diagonally. | |||
Bolt, compressor to crankcase | |||
18 | Remove O-ring from the dual compressor (7) | ||
19 | Install in the reverse order | ||
20 | Check engine oil level with oil dipstick or on display, add oil if necessary | Observe engine oil quality set in maintenance system or Specifications for Operating Fluids. | |
21 | Start engine and allow to run in idle; oil pressure must have built up after about 10 s, then run the engine at varying rpms | ||
22 | Check the compressed air line (6) and air intake duct (13) for leaktightness with the engine running | ||
23 | Turn off engine | ||
24 | Check and correct hydraulic fluid level | ||
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25 | Bleed steering system |
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Steering gear 765.889/896 | |||
26 | Check hydraulic system, cooling system, and dual compressor (7) for leak tightness | Visual inspection. |