Pre-removal Operation
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Post-installation Operation
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| Removal steps |
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|---|---|---|---|
| • |
Brake fluid draining |
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| 1. |
Brake hose connection |
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| 2. |
Rear brake assembly |
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| 3. |
Rear brake disc |
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| Installation steps |
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| 3. |
Rear brake disc |
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>>A<< |
2. |
Rear brake assembly |
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| 1. |
Brake hose connection |
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| • |
Brake fluid supplying and air bleeding (Refer to  ). |
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| >>B<< |
• |
Brake drag force check |
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- Attach special tool front hub remover and installer (MB990998) to the front hub assembly as shown in the illustration, and tighten it to the specified torque.
Tightening torque: 245 ±
29 N·m
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- Use a spring scale to measure the hub torque in the forward direction. Record hub torque with pads removed.
CAUTION)
- Clean the piston and insert into cylinder with special tool disc brake piston expander (MB990520).
- Be careful that the piston boot does not become caught, when lowering the caliper assembly and installing the lock pin.
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- Use a spring balance to measure the hub torque with pads installed in the same direction as earlier.
- Calculate the drag force of the disc brake [difference between hub torque with pads installed and hub torque with pads removed].
Standard value: 68 N or less
- If the brake drag force exceeds the standard value, disassemble and clean the piston. Check for corrosion or worn piston seal, and check the sliding condition of the lock pin and guide pin.