Infiniti F50. Manual — part 262
FRONT DISC BRAKE
BR-29
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3.
Apply brake fluid to piston, and press piston into cylinder body
by hand to assemble piston-side lip on piston boot properly into
groove on piston.
CAUTION:
Press piston evenly and change the pressing point to pre-
vent inner wall of cylinder from being rubbed.
4.
Install sliding pins and sliding pin boots to torque member.
5.
Install torque member to knuckle spindle and tighten mounting
bolts to the specified torque.
CAUTION:
Before installing torque member to vehicle, wipe oil and
grease on washer seats on knuckle spindle and mounting
surface of torque member.
6.
Install pad retainers to torque member.
7.
After assembling shims and shim covers to pad, install it to
torque member.
CAUTION:
The inner pad and outer pad have pad-return mechanism on
upper side of pad retainer. When installing pad, be sure to install pad return lever to pad wear sen-
sor securely shown to left.
8.
Install cylinder body, and tighten sliding pin bolt to the specified torque.
9.
Install brake hose to cylinder body and tighten union bolts to the specified torque.
CAUTION:
●
Assemble brake hose securely to protrusions on cylinder body.
●
Do not reuse copper washer for union bolts.
10. After installing caliper assembly, refill with new brake fluid and bleed air.
Brake Burnishing Procedure
EFS000NV
Burnish brake contact surfaces according to following procedure after refinishing or replacing drums or rotors,
after replacing pads or linings, or if a soft pedal occurs at very low mileage.
CAUTION:
Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1.
Drive the vehicle on a straight smooth road at 50 km/h (31 MPH).
2.
Use medium brake pedal/foot effort to bring the vehicle to a complete stop from 50 km/h (31 MPH). Adjust
brake pedal/foot pressure such that vehicle stopping time equals 3 to 5 seconds.
3.
To cool the brake system, drive the vehicle at 50 km/h (31 MPH) for 1 minute without stopping.
4.
Repeat steps 1 to 3, 10 times or more to complete the burnishing procedure.
SBR574
SBR557E
BR-30
REAR DISC BRAKE
REAR DISC BRAKE
PFP:44000
Component
EFS000NN
CAUTION:
●
Clean dust on caliper and brake pad with a vacuum dust collector. Do not blow with compressed
air.
●
While removing cylinder body, never depress brake pedal because piston will pop out.
●
It is not necessary to remove mounting bolts on torque member and brake hose except for disas-
sembly or replacement of caliper assembly. In this case, hang cylinder body with a wire so that
brake hose is not under tension.
●
Do not damage piston boot.
●
Always replace shims and shim covers as a set when replacing brake pads.
●
Keep brake fluid clean of rotor.
PFIA0005E
1.
Union bolt
2.
Copper washer
3.
Brake hose
4.
Copper washer
5.
Sliding pin bolt
6.
bleed valve
7.
Cylinder body
8.
Piston seal
9.
Piston
10. Piston boot
11. Retaining ring
12. Inner shim cover
13. Inner shim
14. Inner brake pad
15. Pad retainer
16. Outer brake pad
17. Outer shim
18. Outer shim cover
19. Sliding pin
20. Sliding pin boot
21. Torque member mounting bolts
22.
Decrement shim
(Not inserted in some vehicles.)
23. Torque member
24. Cap
REAR DISC BRAKE
BR-31
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Inspection
EFS000NO
PAD THICKNESS
●
Remove wheel with vehicle lifted to check pad thickness from
check hole on cylinder body. If necessary, use a scale to check.
Pad Replacement
EFS000NP
REMOVAL
WARNING:
Clean brake pads with a vacuum dust collector to minimize the hazard of airborne particles or other
materials.
CAUTION:
●
While cylinder body is open, do not depress brake pedal, otherwise piston will pop out.
●
Be careful not to damage piston boot or get oil on rotor, Always replace shims when replacing
pads.
●
If shims are rusted or show peeling of rubber coat, replace them with new shims.
●
It is not necessary to remove connecting bolt except for disassembly or replacement of caliper
assembly. In this case, suspend cylinder body with wire so as not to stretch brake hose.
●
Carefully monitor brake fluid level because brake fluid will return to reservoir when pushing back
piston.
●
Burnish brake contact surfaces after refinishing or replacing drums or rotor, after replacing pads
or linings, or if a soft pedal occurs at very low mileage.Refer to
BR-29, "Brake Burnishing Proce-
.
1.
Remove master cylinder reservoir cap.
2.
Remove lower sliding pin bolt.
Rear brake pad
Standard thickness
: 9.8 mm (0.386 in)
Repair limit thickness
: 2.0 mm (0.079 in)
BRA0010D
SBR090C
BR-32
REAR DISC BRAKE
3.
Hang the cylinder body with a wire, and remove pads, pad
retainers, shims from torque member.
CAUTION:
●
Do not damage piston boot.
●
Keep brake fluid clean of rotor.
INSTALLATION
1.
Apply disc brake grease to back of pad and both sides of shim, and install inner shim and shim cover to
inner pad, and outer shim and outer shim cover to pad.
2.
Apply disc brake grease to pad contact surface on pad retainer, and install pad retainers and pads to
torque member.
3.
Install cylinder body to torque member.
CAUTION:
When replacing pads with new ones, press in piston until pads can be installed. In this case, care-
fully monitor brake fluid level in reservoir tank because brake fluid will return to reservoir tank of
master cylinder.
4.
Insert lower sliding pin bolt to tighten to specified torque.
5.
Check brake for drag.
Caliper Removal and Installation
EFS000NQ
REMOVAL
1.
Connect a vinyl tube to bleed valve.
2.
Drain brake fluid gradually from bleed valve while depressing
brake pedal.
3.
Remove union bolts, and then remove brake hose from caliper
assembly.
4.
Remove mounting bolts from torque member, and remove cali-
per assembly from vehicle with power tool.
5.
Remove disc rotor.
INSTALLATION
1.
Install disc rotor.
2.
Install caliper assembly to vehicle, and tighten mounting bolts to specified torque.
CAUTION:
Before installing caliper assembly to vehicle, wipe oil and grease on washer seats on axle assem-
bly and mounting surface of caliper assembly.
3.
Install brake hose to caliper assembly and tighten union bolts to the specified torque.
SBR042C
SFIA0143E
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