Remove/Check/Install Front Axle Brake Pads - AR42.10-P-1600MMI
Model 172.466/475
With fixed Brake caliper
Shown on Model 172.475 with fixed Brake caliper
Fig 1: Front Axle Brake Pads Components Location - Model 172.466 With Fixed Brake Caliper (Shown On Model 172.475 With Fixed Brake Caliper)
| Risk of poisoning from swallowing Brake fluid. Risk of injury from skin and eye contact with Brake fluid | Only pour Brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling Brake fluid. | AS42.50-Z-0001-01A | |
| 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. | AS00.00-Z-0002-01A | |
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| Notes on repairs to Brake system | AH42.00-P-0003-01A | ||
| Notes on self-locking nuts and Bolts | AH00.00-N-0001-01A | ||
| Brake fluid notes | AH42.50-P-0001-01A | ||
| Notes on installing Brake wear indicator contact sensors | AH42.10-P-0003-01CW | ||
| Remove/install | |||
| 1 | Clean area around cap on expansion reservoir for Brake fluid | ||
| 2 | Unscrew the cap on the Brake fluid expansion reservoir and suction off some Brake fluid | ||
| 3 | Remove front wheel-and-tire assemblies | ||
| AP40.10-P-4050V | |||
| 4 | Disconnect right front Brake wear sensor (S10/2) from right front Brake wear sensor electrical connector (S10/2x1) | ||
| 5 | Drive out Retaining pins (1) with punch and remove Retaining spring (2) | If there are problems ↓ Replace Retaining pins (1) and Retaining spring (2). |
|
| 6 | Remove Brake linings (3) from Brake caliper (4) | Seized Brake linings (3) can be pushed out using a lever. |
Fig 4 |
| 7 | Pull right front Brake wear sensor (S10/2) out of pad backing plate of Brake lining (3) | When replacing the Brake linings (3) at front right or if the front right Brake wear sensor (S10/2) is defective. If the front right Brake wear sensor (S10/2) has a problem ↓ Replace front right Brake wear sensor (S10/2). |
|
| Measure | |||
| 8 | Check condition of Brake linings (3) and measure degree of wear | ||
| If there are problems ↓ Replace Brake linings (3) in sets. |
AP42.10-P-4252SLB | ||
| 9 | Check Brake disks for condition and measure wear | ||
| AP42.10-P-4258V | |||
| If there are problems ↓ Replace Brake disks in sets. |
AR42.10-P-0220MMI | ||
| Check | |||
| 10 | Check Brake caliper (4) and dust boots of Brake pistons for leak tightness and damage | If there are problems ↓ Replace Brake caliper (4). |
AR42.10-P-0070MMI |
| 11 | Press back Brake piston using resetting device | If Brake piston is sluggish ↓ Replace Brake caliper (4). |
Fig 3 |
| AR42.10-P-0070MMI | |||
| 12 | Secure remaining Brake pistons to prevent them from slipping out | Fig 2 | |
| 13 | Clean contact surfaces of Brake linings (3) on Brake caliper (4) | Do not damage the Brake piston dust boots. Do not use sharp-edged or pointed objects. The Brake caliper (4) must otherwise be replaced. |
|
| 14 | Install in the reverse order | ||
| Initial startup | |||
| Risk of accident when commissioning the vehicle due to a lack of braking effect when the service Brake is operated for the first time after repair work. | Before starting the engine, actuate Brake pedal several times until pressure is built up and maintained in the Brake system. | AS42.50-Z-0002-01A | |
| 15 | Operate the Brake pedal several times until Brake linings (3) contact the Brake disks | ||
| 16 | Check fluid level in Brake fluid reservoir, and correct if necessary | ||
| AP42.10-P-4210V | |||
| 17 | Carry out Brake test on the test stand | ||
| AP42.00-P-4290BA |