W20.40-1128-08
1 Hydraulic motor
2 Fitting
3 High-pressure hose
Y66 Hydrostatic fan proportional valve
4 Adapter
5 Measuring hose
6 Tester
Modification notes
| Remove | ||
Danger! | Risk of injury to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning caused by swallowing hydraulic fluid | Depressurize the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses. | |
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. | |
Danger! | Risk of injury caused by moving parts that can pinch, crush or, in extreme cases, even sever extremities | No parts of the body or limbs should be within the operating range of the mechanism when moving components. | |
Danger! | Risk of injury caused by body parts being pinched or crushed as cab is tilted | Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure with the safety strut. | |
| Notes on tilting the cab | ||
1 | Open maintenance flap | ||
2 | Tilt cab | ||
3 | Install testing unit and lines for pressure test at hydraulic fan drive | Catch escaping hydraulic fluid. | |
Measuring hose | |||
Testing unit | |||
Adapter | |||
4 | Check hydraulic fluid level for hydrostatic fan drive; correct if necessary | ||
| Checking | ||
5 | Test hydraulic pressure and fan speed | Use digital tachometer. | |
Up to vehicle ident. end no. V 207574 | |||
As of vehicle ident. end no. V 207575 | |||
Measuring hose | |||
Testing unit | |||
Adapter | |||
Ohm decade | |||
Electrical connection set | |||
If a defect is detected replace the relevant component: | |||
Replace hydraulic pump fan | |||
Replace hydraulic motor (1) with hydrostatic fan proportional valve (Y66). | |||
Up to vehicle ident. end no. V 207574 | |||
As of vehicle ident. end no. V 207575 | |||
| Install | ||
6 | Remove high-pressure hose (3), measuring hose (5), test equipment (6) and adapter (4) from fitting (2) | Catch escaping hydraulic fluid. | |
7 | Install high-pressure hose (3) on fitting (2) on hydraulic motor (1) | ||
8 | Check hydraulic fluid level for hydrostatic fan drive; correct if necessary | ||
9 | Start engine and afterwards allow the engine to run at alternating rpm. | ||
10 | Inspect hydraulic system for leaks | Visual inspection. | |
11 | Turn off engine | ||
12 | Lower cab | ||
13 | Close maintenance flap |
625 589 01 21 00
Measuring hose
Tester
Adapter
Ohm decade
957 589 02 63 00
442 589 00 90 00
124 589 09 63 00
Electrical connection kit
220 589 00 99 00
Referenced documents
- ah6080n000301a Notes on tilting the cab
- ap2040w2001a Hydrostatic fan drive - oil and filter change
- ar2040w0001a Remove/install hydraulic
- ar2040w0001jb Remove/install hydraulic
- ar2040w0400a Remove/install hydraulic pump
- ar2040w050001a Install testing unit and lines for pressure test at hydraulic fan drive
- ar2040w050002a Test hydraulic pressure and fan speed
- ar2040w050002b Test hydraulic pressure and fan speed
- 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.
- as0000z000901a Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities.
- as0000z001301a Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure.Risk of poisoning from swallowing hydraulic fluid.
- as6080z000101a Risk of injury caused by body parts being pinched or crushed as cab is tilted