 |
Check |
|
|
 |
Risk of poisoning
caused by swallowing brake fluid. Risk of injury
caused by brake fluid coming into contact with skin and eyes. |
Pour brake fluid only into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. |
AS42.50-Z-0001-01A |
 |
Notes on externally invisible brake fluid loss |
|
AH42.10-P-9406-02A |
|
Notes on repairs to brake system |
|
AH42.00-P-0003-01A |
|
Notes on handling brake fluid |
|
AH42.50-P-0001-01A |
|
Risk of death
caused by vehicle slipping or toppling off of the lifting platform. |
Align vehicle between the columns of the lifting platform and position the four support plates below the lifting platform support points specified by the vehicle manufacturer. |
AS00.00-Z-0010-01A |
| 1 |
Lift/jack up vehicle |
Except model 203, 209.3/4
Model 203, 209.3/4 |
AR00.60-P-1000P |
| 2 |
Unscrew bleed screw at brake caliper and connect pressure tester (051) |
Pressure testers (051) for hydraulic oil systems must not be used for systems with brake fluid otherwise the brake fluid is mixed with mineral oil which can lead to failure of the brake. |
|
| |
|
Pressure tester |
*WH58.30-Z-1012-15A |
| 3 |
Bleed pressure tester (051). |
|
*WH58.30-Z-1012-15A |
| 4.1 |
Switch off easy entry/exit function for driver seat and steering wheel |
On vehicles with memory and multifunction steering wheel. |
|
| |
|
Otherwise the driver's seat and steering wheel move to a different position, e.g. when the driver door is opened/closed. The seat may be damaged when the brake pedal jack (080) is installed. |
|
| |
|
See Operator's Manual |
|
 |
High-pressure check |
|
|
| 5 |
Produce vacuum for the brake booster |
Allow the engine to run at moderate speed and by jerkily releasing the accelerator pedal, produce as high a vacuum as possible. |
|
| 6 |
Insert brake pedal jack (080) between the brake pedal and seat |
Protect brake pedal and seat against damage. |
|
| |
|
Brake pedal jack |
Fig 2 |
| 7 |
Depress the brake pedal as far as possible with the brake pedal jack (080) and observe the pressure drop |
The pressure loss during the test duration of 5 minutes must not exceed 5 % of the regulated value. |
|
| |
|
Brake pedal winch |
Fig 2 |
|
Low-pressure testing |
|
|
| 8 |
Switch off engine and operate brake pedal until vacuum is reduced |
|
|
| 9 |
Turn back brake pedal winch (080) until a line pressure of approx. 3 bar overpressure is still indicated on the pressure gauge |
The line pressure must not fall throughout the duration of the test (2 minutes). |
|
| |
|
Brake pedal winch |
Fig 2 |
| 10 |
Disconnect pressure tester (051) |
|
*WH58.30-Z-1012-15A |
| 11 |
Bleed brake system |
Model 129, 140, 170, 202, 208, 210 |
AR42.10-P-0010A |
| |
|
Model 203, 209.3/4 |
AR42.10-P-0010P |
| |
|
Only bleed the brake caliper to which the pressure tester (051) was connected. |
|
| |
|
Bleed screw on front axle fixed caliper |
*BA42.10-P-1002-02A |
| |
|
Bleed screw on front axle floating caliper |
*BA42.10-P-1002-03A |