| Last Modified: 11-27-2007 | 1.6 A | |
| Service Category: Brake | Section: Brake System | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM00000171U00HX |
| Title: BRAKE SYSTEM (OTHER): HYDRAULIC BRAKE BOOSTER: DISASSEMBLY (2008 LX570) | ||
DISASSEMBLY
1. REMOVE NO. 1 BRAKE ACTUATOR BRACKET
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(a) Using a 5 mm hexagon wrench, remove the bolt and No. 1 brake actuator bracket. |
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(b) Using a screwdriver, disconnect the brake fluid level warning switch connector from the No. 1 brake actuator bracket. |
2. REMOVE BRAKE MASTER CYLINDER RESERVOIR SUB-ASSEMBLY
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(a) Using a pin punch and hammer, remove the pin from the brake master cylinder reservoir sub-assembly. |
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(b) Remove the screw and pull out the brake master cylinder reservoir sub-assembly. |
(c) Remove the master cylinder reservoir filler cap.
3. REMOVE MASTER CYLINDER RESERVOIR GROMMET
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(a) Remove the 3 reservoir grommets from the master cylinder reservoir sub-assembly. |
4. REMOVE NO. 1 BRAKE ACTUATOR HOSE
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(a) Using needle nose pliers, slide the 2 clips and remove the brake actuator hose and 2 clips. |
5. REMOVE NO. 1 BRAKE ACTUATOR TUBE
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(a) Using a union nut wrench, remove the No. 1 brake actuator tube. |
6. REMOVE BRAKE BOOSTER WITH ACCUMULATOR PUMP ASSEMBLY
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(a) Using a screwdriver, remove the 2 plugs. |
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(b) Remove the 2 screws and disconnect the wire harnesses from the master cylinder solenoid. |
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(c) Using a screwdriver, remove the clip. |
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(d) Remove the brake booster with accumulator pump assembly from the brake master cylinder. |
(e) Remove the 2 brake booster pump collars and 2 brake booster pump bushes from the brake booster with accumulator pump assembly.
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(f) Using a 4 mm hexagon wrench, remove the 2 pins. |
7. REMOVE NO. 1 BRAKE BOOSTER PUMP BRACKET
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(a) Using a 5 mm hexagon wrench, remove the 2 bolts and No. 1 brake booster pump bracket from the brake master cylinder solenoid. |
(b) Remove the brake booster pump bush from the No. 1 brake booster pump bracket.
8. REMOVE BRAKE BOOSTER ACCUMULATOR PIPE
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(a) Secure the brake booster with accumulator pump assembly in a vise. |
(b) Remove the brake booster accumulator assembly.
(c) Remove the O-ring from the brake booster accumulator assembly.
NOTICE:
Ensure no foreign matter enters the pump.
(d) Remove the brake booster accumulator pipe and compression spring.
9. REMOVE MASTER CYLINDER SOLENOID
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(a) Remove the 6 bolts and master cylinder solenoid. |
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(b) Remove the gasket. |
10. REMOVE MASTER CYLINDER PUSH ROD CLEVIS
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(a) Loosen the lock nut on the rod operating adapter, and remove the push rod clevis and lock nut. |
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(b) Loosen the lock nut on the brake master cylinder side, and remove the rod operating adapter and lock nut. |
11. REMOVE MASTER CYLINDER BOOT
12. REMOVE BRAKE BOOSTER PISTON SUB-ASSEMBLY
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(a) Pressing the piston in with a screwdriver, insert a pin or equivalent into the hole in the master cylinder body to hold the C-ring, and then remove the C-ring with another screwdriver. HINT:
Tape the screwdriver tip before use. |
(b) Remove the plug from the piston.
(c) Remove the piston by pulling it straight out, not at an angle.
NOTICE:
If the piston is pulled out at an angle, there is a possibility that the cylinder bore could be damaged.
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