Front

LS 400 Front Brake Components:

CALIPER REMOVAL

1. Remove front wheel.
2. Remove these parts:
^ Clip and 2 pins.
^ Anti-rattle spring.
^ 2 pads with anti-squeal shims and spacers.

NOTE: Do not disconnect the pad wear indicator unless you are replacing the Brake Pads.





3. Disconnect brake hose.
(a) Remove the union bolt and gasket from the Caliper, then disconnect the brake hose from the Caliper.
Torque: 39 Nm (400 kg.cm, 29 ft. lbs.)

NOTE: Install the flexible hose lock securely in the lock hole in the Caliper.

(b) Use a container to catch the brake fluid as it drains out.
4. Remove caliper.





Remove the 2 bolts and Caliper from the Knuckle.
Torque: 118 Nm (1,200 kg.cm, 87 ft. lbs.)

CALIPER DISASSEMBLY

1. Remove cylinder boots.





Using a screwdriver, remove the cylinder boots from the cylinder.
2. Remove pistons.





(a) Prepare a wooden plate to hold the pistons.
(b) Place the plate between the pistons and insert a pad on one side.





(c) Use compressed air to remove the pistons alternately from the cylinder.

CAUTION: Do not place your fingers in front of the pistons when using compressed air.

3. Remove piston seals.





Using a screwdriver, remove the 4 piston seals from the cylinder.

CALIPER ASSEMBLY
Assembly is in the reverse order of disassembly.

NOTE: Apply lithium soap base glycol grease to the parts indicated by the arrows in EXPLODED VIEW.

CALIPER INSTALLATION
Installation is in the reverse order of removal.
After installation, fill brake reservoir with brake fluid, bleed brake system and check for fluid leakage. Service and Repair