REMOVAL SERVICE POINTS |
<<A>> BRAKE DISC REMOVAL |
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If the brake disc is seized,
install M8 ×
1.25 bolts as shown, and remove the
disc by tightening the bolts evenly and gradually. |
INSTALLATION SERVICE POINTS |
>>A<< REAR BRAKE ASSEMBLY INSTALLATION |
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1.In order to measure the
brake drag torque, measure the hub torque with the pads
removed
by the following procedure. Use a spring balance to measure the hub torque in the forward direction. Record hub torque with pads removed. |
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2.
Clean the piston and insert into cylinder with special tool disc brake piston expander (MB990520). 3.Be careful that the piston boot does not become caught, when lowering the caliper assembly and installing the lock pin. Tighten the lock pin to the specified torque. Tightening torque: 44 ± 5 N·m |
>>B<< BRAKE DRAG FORCE CHECK |
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1.Check the brake drag force
as follows. (1) Start the engine and hold the brake pedal down for 5 seconds. (Pedal depression force: approximately 200 N) (2) Stop the engine. (3) Turn the brake disc forward 10 times. (4) Use a spring balance to measure the hub torque with pads installed in the same direction as earlier. (5) 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 2.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. |