BR-30< SERVICE INFORMATION >
FRONT DISC BRAKE
2. Remove sliding pin bolts and remove cylinder body from the torque member. Remove pads, shims, pad return spring
(AD22VK) and pad retainers from torque member as necessary.
CAUTION:
When removing pad retainer fr om torque member, lift the
pad retainer in the direction shown by arrow, so as not to
deform it.
3. Remove sliding pins and sliding pin boots from torque member.
4. Place a wooden block as shown, and blow air from union bolt mounting hole to remove piston and piston boot.
CAUTION:
Do not get fingers caught in the piston.
5. Remove piston seal with a flat-bladed screwdriver. CAUTION:
Be careful not to damage the inner wall of cylinder.
INSPECTION AFTER DISASSEMBLY
Cylinder Body
Check the inner wall of cylinder for corrosion, w ear, and damage. Replace cylinder body as necessary.
CAUTION:
Clean cylinder body using new brake fluid. Never use mineral oils such as gasoline or kerosene.
Torque Member
Check for wear, cracks, and damage. R eplace torque member as necessary.
Piston
Check piston surface for corrosion, wear, and damage. Replace piston as necessary.
CAUTION:
The piston sliding surface is plated . Do not polish with sandpaper.
Sliding Pin, Sliding Pin Bolt, and Sliding Pin Boot
Check sliding pins, sliding pin bolts and sliding pin boots for wear, damage, and cracks. Replace applicable
part as necessary.
DISC ROTOR INSPECTION
Visual Inspection
Check surfaces of disc rotor for uneven wear, cr acks, and serious damage. Replace as necessary.
Runout Inspection
1. Using wheel nuts, secure disc rotor to wheels hub at two or more positions. SBR556E
WFIA0525E
SFIA2277E
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2. Using a dial indicator, check runout.
CAUTION:
Make sure that wheel bearing axi al end play is within the
specifications before measuring runout. Refer to FAX-6," On-Vehicle Inspection and Service " .
3. If runout is outside the limit, find the minimum runout point by shifting the mounting positions of disc rotor and wheel hub by
one hole.
4. If runout is still out of the specific ation, grind rotor on-car using Tool until runout is within the specified limit.
Thickness Inspection Using a micrometer, check thickness of disc rotor. If thickness is out-
side the specifications, replace disc rotor.
ASSEMBLY CAUTION:
When assembling, use only specified lubricant.
1. Apply rubber grease to new piston seal and install on cylinder body.
2. Apply rubber grease (CL25VF) or polyglycol ether based lubri- cant (AD22VK) to piston boot and apply brake fluid to piston.
Cover the piston end with piston boot, and install cylinder-side
lip on piston boot properly into groove on cylinder body. Runout limit
[measured at 10.0 mm (0.394
in) inside the disc edge] : Refer to
BR-40, " Front
Disc Brake " .
Tool number : 38-PFM90.5 ( — ) Front
Disc Brake " .
Repair limit thickness : Refer to BR-40, " Front
Disc Brake " .
Maximum uneven wear
(measured at 8 positions) : Refer to
BR-40, " Front
Disc Brake " .
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a. Press up adjuster lever with a wire or equivalent from plug hole
(plug hole at the side of wheel cylinder) on the back plate as
shown. Turn frame of adjuster assembly with a flat bladed screw
driver in the direction that narrows frame to narrow enlarged
brake shoe.
3. While pushing and rotating the retainer, pull out shoe hold pin, and remove shoe assembly. CAUTION:
Do not damage the wheel cylinder boot.
4. Remove the parking brake rear cable from the operating lever. CAUTION:
Do not bend the parking brake cable.
5. Disassemble the shoe assembly (shoe, springs, adjuster, adjuster lever).
6. Remove retainer ring (A) with a tool to separate operating lever (C) from brake shoe.
• Retainer ring (A)
• Contact point (B)
• Operating lever (C)
• Pin (D)
INSPECTION AFTER REMOVAL
Lining Thickness Inspection Check lining thickness.
Drum Inner Diameter Inspection Check inner diameter of brake drum.
Measurement area: lining contact surface (center)
Wheel Cylinder Leakage Inspection Rear
Drum Brake " .
Repair limit thickness (A) : Refer to BR-40, " Rear
Drum Brake " .
Rear
Drum Brake " .
Repair limit inner diameter : Refer to BR-40, " Rear
Drum Brake " .
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5. Connect the parking brake rear cable to the operating lever.
6. Install the shoe assembly. After assembly, be sure that each part is installed properly. CAUTION:
Do not damage the wheel cylinder piston boot.
7. Install the brake drum.
8. Depress brake pedal for several times (approximately 2 or 3 times).
9. Adjust clearance of brake shoe. Refer to PB-5, " On-Vehicle Service " .
10. Install rear wheel and tire. Refer to WT-7, " Rotation " .
Removal and Installati on of Wheel Cylinder INFOID:0000000004305917
REMOVAL 1. Drain the brake fluid. Refer to BR-9, " Drain and Refill " .
2. Remove the rear brake shoe assembly. Refer to BR-34, " Removal and Installation of Drum Brake Assem-
bly " .
3. Remove the bleed valve.
4. Disconnect the brake tube from the wheel cylinder.
5. Remove the wheel cylinder bolts and then remo ve the wheel cylinder from the back plate.
INSTALLATION Installation is in the reverse order of removal.
• Tighten bolts and bleed valve to the specified torque. Refer to BR-33, " Component " .
• Refill with new brake fluid and bleed the air. Refer to BR-9, " Bleeding Brake System " .
Disassembly and Assemb ly of Wheel Cylinder INFOID:0000000004305918
DISASSEMBLY 1. Remove boots at the right and left of the wheel cylinder, and pull the pistons and spring out of the cylinder.
2. Remove the piston cups from the pistons.
INSPECTION AFTER DISASSEMBLY Check the pistons, spring and inner wall of the cylinder for wear, corrosion, and damage. Replace any parts as
necessary.
ASSEMBLY CAUTION:
When inserting the piston, be caref ul not to scratch the cylinder.
1. Apply brake fluid to the piston sliding surface on the wheel cylinder.
2. Apply rubber grease to the piston cups and boots and assemble the wheel cylinder as shown.
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CONTENTS
FRONT AXLE
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary fo r Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Caution ................................................................ ......2
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool .................................... ......4
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....5
NVH Troubleshooting Chart ................................ ......5 FRONT WHEEL HUB
AND KNUCKLE ............. 6
On-Vehicle Inspection and Service ..................... .....6
Removal and Installation ..................................... .....6
FRONT DRIVE SHAFT ...................................... 9
On-Vehicle Inspection and Service ..................... .....9
Removal and Installation (Left Side) .................... .....9
Removal and Installation (Right Side) ................. ....10
Disassembly and Assembly (Left Side) ............... ....13
Disassembly and Assembly (Right Side) ............. ....18
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................. 25
Wheel Bearing ..................................................... ....25
Drive Shaft ........................................................... ....25
Dynamic Damper ................................................. ....25
Boot Bands .......................................................... ....25
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2. Without disassembling the hydraulic lines, remove the torque member bolts using power tool. Then repo-
sition the torque member and brake caliper assembly aside with wire. Refer to BR-25 .
CAUTION:
Do not depress brake pedal while brake caliper is removed.
3. Put alignment marks on disc rotor and wheel hub and bearing assembly, then remove disc rotor.
4. Remove wheel sensor from steering knuckle. Refer to BRC-32 .
CAUTION:
Do not pull on wheel sensor harness.
5. Loosen steering outer socket (1) nut.
6. Remove steering outer socket (1) from steering knuckle (2) so as not to damage ball joint (3) boot using Tool.
CAUTION:
Temporarily leave the outer so cket nut installed to prevent
damage to threads and to pr event the ball joint remover or
suitable tool from suddenly coming off.
7. Remove transverse link ball joint nut and bolt. Then, remove transverse link from steering knuckle.
8. Remove cotter pin, then loosen hub lock nut using power tool. CAUTION:
Temporarily leave the hub lock nut inst alled to prevent damage to threads.
9. Separate the drive shaft from the wheel hub and bearing assem- bly by lightly tapping the end of the drive shaft using a hammer
or suitable tool, and then remove hub lock nut.
NOTE:
Use a suitable puller if wheel hub and bearing assembly and
drive shaft cannot be separated after performing the above pro-
cedure.
10. Remove the drive shaft from the wheel hub and bearing assem- bly and support the drive shaft.
CAUTION:
• Do not apply an excessive angle to drive shaft joint when
removing from the wheel hub and bearing assembly,
• Do not excessively extend slide joint.
• Do not allow drive shaft to hang do wn. Support the entire drive shaft.
11. Remove wheel hub and bearing assembly bolts, and then remove splash guard and wheel hub and bear- ing assembly from steering knuckle.
FAX-8< SERVICE INFORMATION >
FRONT WHEEL HUB AND KNUCKLE
12. Remove nuts and bolts, and then remove steering knuckle from strut assembly. Refer to FSU-10, " Component " .
INSPECTION AFTER REMOVAL
Wheel Hub and Knuckle Inspection
Check for any deformity, cracks, or other damage on t he wheel hub assembly and knuckle, replace if neces-
sary.
CAUTION:
The wheel hub assembly does not require maintenance. If any of the following symptoms are noted,
replace the wheel hub assembly.
• Growling noise is emitted from the wheel hub bearing during operation.
• Wheel hub bearing drags or turns roughly.
Ball Joint Inspection
Check boots of transverse link and steering outer socket ball joint for breakage, axial play, and torque. Refer to
FSU-15, " Removal and Installation " transverse link and
PS-13, " Disassembly and Assembly " steering outer
socket ball joint.
INSTALLATION
Installation is the reverse order of removal. Note the following:
• Perform the final tightening of each of parts under unladen conditions, which were removed when removing
wheel hub and bearing assembly and steering knuckl e. Check the wheel alignment. Refer to FSU-7, " Wheel
Alignment Inspection " .
• When installing disc rotor on wheel hub and bearing assembly,
align the marks.
(When not using the alignment mark, refer to BR-29, " Disassembly
and Assembly of Brake Caliper Assembly " .) WDIA0367E
SDIA1480E
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FRONT DRIVE SHAFT
On-Vehicle Inspection and Service INFOID:0000000004305845
• Check drive shaft mounting point and joint for looseness and other damage.
• Check boot for cracks and other damage.
Replace or repair components as necessary. Refer to FAX-9, " Removal and Installation (Left Side) " ,
FAX-10, " Removal and Installation (Right Side) " ,
FAX-13, " Disassembly and Assembly (Left Side) " or
FAX-18, " Disas-
sembly and Assembly (Right Side) " .
CAUTION:
Replace entire drive shaft assembly when noi se or vibration occur from drive shaft.
Removal and Installation (Left Side) INFOID:0000000004305846
COMPONENTS
REMOVAL 1. Remove wheel and tire using power tool. Refer to WT-7, " Rotation " .
2. Remove wheel sensor from steering knuckle. Refer to BRC-32, " Removal and Installation " .
CAUTION:
Do not pull on wheel sensor harness.
3. Remove transverse link ball joint nut and bolt. Then, remove transverse link from steering knuckle.
4. Remove cotter pin, then loosen hub lock nut using power tool. CAUTION:
Temporarily leave the hub lock nut inst alled to prevent damage to threads.
5. Separate the drive shaft from the wheel hub and bearing assem- bly by lightly tapping the end of the drive shaft using a hammer
or suitable tool and wood block, and then remove hub lock nut.
NOTE:
Use a suitable puller if wheel hub and bearing assembly and
drive shaft cannot be separated after performing the above pro-
cedure.
6. Remove the drive shaft from the wheel hub and bearing assem- bly.
CAUTION:
• Do not apply an excessive angle to drive shaft joint when
removing from the wheel hub and bearing assembly,
• Do not excessively extend slide joint.
• Do not allow drive shaft to hang do wn. Support the entire drive shaft.
1. Drive shaft 2. Cotter pin