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" Hydraulic Circuit " .
Inspection INFOID:0000000004305900
CAUTION:
• Carefully monitor brake flui d level at master cylinder.
• Use the recommended new brake fluid. Refer to MA-14, " Fluids and Lubricants " .
• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on paint areas, wash it away with water immediately.
1. Connect a suitable brake fluid pressure gauge to air bleeders of front and rear brakes on either LH and RH side.
2. Bleed air from the brake fluid pressure gauge.
3. Check fluid pressure specific ation by depressing the brake pedal.
• If output pressure is out of specification, replace the dual proportioning valve.
Unit: kPa (kg/cm2
, psi)
4. Bleed air after disconnecting the brake fluid pressure gauge. Refer to BR-9, " Bleeding Brake System " .
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BR
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BRAKE MASTER CYLINDER
On-Board Inspection INFOID:0000000004305901
LEAK INSPECTION • Check for leaks around the master cylinder installation surf ace, the reservoir tank installation surface, and all
the brake tube connections.
Removal and Installation INFOID:0000000004305902
CAUTION:
Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, immediately wipe th em with cloth and wash it away with water.
REMOVAL 1. Drain the brake fluid. Refer to BR-9, " Drain and Refill " .
2. Remove the battery. Refer to SC-7, " Removal and Installation " .
3. Remove the air duct. Refer to EM-139, " Removal and Installation " .
4. Remove the air cleaner. Refer to EM-139, " Removal and Installation " .
5. Disconnect the brake fluid level switch harness connector.
6. Disconnect the clutch hose from the reservoir tank, if equipped.
7. Remove the brake tube from master cylinder using a suitable tool.
8. Remove the master cylinder assembly nuts, and remove master cylinder assembly. 1. Reservoir tank 2. Master cylinder 3. Brake booster
4. Clevis 5. Spacer 6. Gasket
Up
Page 816 of 4331
Fluids and Lubricants " .
• Never reuse drained brake fluid.
• Check if the rod of primary piston has dust or scratches.
1. Install master cylinder to brake booster assembly, and tighten nuts to the specified torque.
CAUTION:
• Do not damage or strain rod of primary piston.
• Apply silicone grease for O-ring, primary piston rod and to inside of booster.
2. Install brake tube to master cylinder, and temporarily tighten the flare nuts on the brake tube to master cyl-
inder by hand.
3. Install brake tube to brake hose, then tighten flare nut to the specified torque using a flare nut torque
wrench. Refer to BR-11, " Hydraulic Circuit " .
4. Connect the clutch hose to the reservoir tank, if equipped.
5. Connect brake fluid level switch harness connector.
6. Refill with new brake fluid and bleed the air from the brake hydraulic system. Refer toBR-9, " Bleeding
Brake System " .
Disassembly and Assembly INFOID:0000000004305903
COMPONENTS
DISASSEMBLY
Page 819 of 4331

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5. Be careful not to damage rod of primary piston with the cloth.
Then insert snap ring to cylinder body while pushing primary pis-
ton.
CAUTION:
Make sure that snap ring is securely engaged in cylinder
body inner diameter groove.
6. Apply brake fluid to a grommet, and press it into reservoir tank to install.
7. Install reservoir tank to cylinder body. CAUTION:
Pay attention to the orientatio n of reservoir tank. Make sure
reservoir tank is fully seated on master cylinder.
8. Secure flange of cylinder body in vise as shown. CAUTION:
• Use copper plate or cloth to cover flange for securing in
the vise.
• When securing master cylinder assembly in a vise, be sure not to over-tighten.
• Be sure to secure the flange part with the brake tube
installation side of cylinder body facing up (chamfered pin
insert hole of cylinder body facing up).
9. Using a pin punch [commercial service tool: diameter approx. 4 mm (0.16 in)], insert the reservoir tank pin into the pin hole. WFIA0515E
Page 821 of 4331

BRAKE BOOSTER
BR-21
< SERVICE INFORMATION >
C
D E
G H
I
J
K L
M A
B BR
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Removal and Installation
INFOID:0000000004305905
REMOVAL CAUTION:
• Be careful not to splash brake fluid on painte d areas such as body. It may cause paint damage. If
brake fluid is splashed on painte d surfaces of body, wipe them with cloth immediately and then wash
it away with water.
• Be careful not to deform or bend brake tub es while removing and installing brake booster.
• Replace clevis pin if it is damaged.
• Be careful not to damage brake booster stud bolt thr eads. If brake booster is tilted or inclined during
installation, dash panel may damage the threads.
1. Remove vacuum hose from brake booster.
2. Remove master cylinder assembly. Refer to BR-15, " Removal and Installation " .
3. Remove snap pin and clevis pin on the clevis of the brake booster, and disconnect the input rod from the brake pedal. 1. Reservoir tank 2. Master cylinder 3. Brake booster
4. Clevis 5. Spacer 6. Gasket Up AWFIA0530GB
SFIA2044E
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3. Hang cylinder body with a wire, and remove pad return spring,
pads, shims and pad retainers from torque member.
CAUTION:
When removing pad retainer from torque member, lift pad
retainer in the direction shown by arrow, so as not to
deform it.
Installation 1. Apply PBC (Poly Butyl Cuprysil) grease or silicone- based grease to the shims. Install shims to pads.
CAUTION:
Securely install shims according to mounting direction of pads.
2. Install pad retainers, pad return spring, shims and pads to the torque member. CAUTION:
• When installing pad retainer, at tach it firmly so that it is
not lifted up from torque member, as shown.
3. Install cylinder body to torque member. CAUTION:
Check the brake fluid level in the reservoir tank for fluid level because brake fluid returns to mas-
ter cylinder reservoir tank when pressing piston in.
NOTE:
Use a disc brake piston tool (commercial se rvice tool) to easily press to piston in.
4. Install lower sliding pin bolt (lower side), and tighten it to the specified torque. Refer to BR-25, " Compo-
nent " .
5. Check brakes for drag.
6. Install front wheel and tire. Refer to WT-7, " Rotation " .
CLZ25VF
Removal 1. Remove the front wheel and tire using power tool.
2. Remove sliding pin bolt (lower side).
3. Hang cylinder body with a wire, and remove pads, shims and pad retainers from torque member.
CAUTION:
When removing pad retainer from torque member, lift pad
retainer in the direction shown by arrow, so as not to
deform it.
Installation SBR556E
Page 828 of 4331
Compo-
nent " .
5. Check brake for drag.
6. Install the front wheel and tire. Refer to WT-7, " Rotation " .
Removal and Installation of Brake Caliper Assembly INFOID:0000000004305912
REMOVAL
1. Remove front wheel and tire.
2. Secure the disc rotor using wheel nuts. CAUTION:
Put matching marks on wheel hub assembly and disc rotor,
if it is necessary to remove the disc rotor.
3. Drain brake fluid. Refer to BR-9, " Drain and Refill " .
4. Remove the union bolt (A) and discard the copper washers. Remove the brake hose from the cylinder body.
• Protusions (B)
CAUTION:
Do not reuse the copper washers AWFIA0502ZZ
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5. Remove the torque member bolts and remove the cylinder body
and torque member as an assembly.
INSTALLATION 1. Install the torque member and cylinder body as an assembly and tighten the torque member bolts to the specified torque.
Refer to BR-25, " Component " .
CAUTION:
Before installing torque member to vehicle, wipe oil and
grease on mounting surface of steering knuckle and torque
member.
2. Install the brake hose to caliper assembly with new copper washers. Align the brake hose tab between the protusions (B)
on the cylinder body as shown. Tighten the union bolt (A) to the
specified torque. Refer to BR-11, " Hydraulic Circuit " .
CAUTION:
Do not reuse the copper washers
3. Refill with new brake fluid and bleed air. Refer to BR-9, " Bleeding Brake System " .
4. Check front disc brake for drag.
5. Install front wheel and tire. Refer to WT-7, " Rotation " .
Disassembly and Assembly of Brake Caliper Assembly INFOID:0000000004305913
DISASSEMBLY 1. Remove the caliper assembly. Refer to BR-28, " Removal and Installation of Brake Caliper Assembly " .AWFIA0502ZZ
SFIA1137E