Nissan Sentra. Instruction — part 143
BR-14
< BASIC INSPECTION >
REAR DISC BRAKE
REAR DISC BRAKE
BRAKE PAD
BRAKE PAD : Inspection
INFOID:0000000009755993
PAD WEAR
Check pad thickness from an inspection hole on caliper body. Check
using a scale if necessary.
DISC ROTOR
DISC ROTOR : Inspection
INFOID:0000000009755994
APPERANCE
Check surface of disc rotor for uneven wear, cracks or damage. Replace if any abnormal conditions exist.
RUNOUT
1. Check the wheel bearing axial end play before the inspection. Refer to
2. Secure the disc rotor to the wheel hub and bearing assembly
with wheel nuts at two wheel nut locations.
3. Inspect the runout with a dial gauge, measured at 10 mm (0.39
in) inside the disc edge.
4. Find the installation position with a minimum runout by shifting
the disc rotor-to-wheel hub and bearing assembly installation
position by one hole at a time if the runout exceeds the limit
value.
5. Refinish the disc rotor if the runout is outside the limit even after performing the above operation. When
refinishing, use Tool.
Thickness
Check the thickness of the disc rotor using a micrometer. Replace
the disc rotor if the thickness is below the minimum thickness.
Wear limit thickness
: Refer to
.
BRA0010D
Runout
: Refer to
.
Tool number
: 38-PFM92 ( — )
SBR019B
Minimum thickness
: Refer to
.
Thickness variation
: Refer to
.
SBR020B
BRAKE PEDAL
BR-15
< PERIODIC MAINTENANCE >
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PERIODIC MAINTENANCE
BRAKE PEDAL
Adjustment
INFOID:0000000009755995
BRAKE PEDAL HEIGHT
1. Remove instrument lower panel LH. Refer to
IP-21, "Removal and Installation"
2. Disconnect the harness connectors from the brake pedal position switch (if equipped) and the stop lamp
switch.
3. Turn the stop lamp switch and brake pedal position switch (if equipped) 45
° counterclockwise.
4. Loosen the input rod lock nut (1). Adjust the brake pedal height
to the specification.
CAUTION:
• Check the height with the floor trim removed.
• The threaded end of the input rod (2) must project to the
inner side (L) of the clevis (3).
5. Tighten the input rod lock nut to specification. Refer to
6. Check the brake pedal for smooth operation.
CAUTION:
The stop lamp must turn off when the brake pedal is released.
STOP LAMP SWITCH AND BRAKE PEDAL POSITION SWITCH
1. Remove instrument lower panel LH. Refer to
IP-21, "Removal and Installation"
2. Disconnect the harness connectors from the brake pedal position switch (if equipped) and the stop lamp
switch.
3. Turn the stop lamp switch and brake pedal position switch (if equipped) 45
° counterclockwise.
4. With the threaded ends of the stop lamp switch (2) and brake
pedal position switch (if equipped) (1) contacting the pedal
bracket (3), turn the switches 45
° clockwise to lock in place.
Check that both the stop lamp switch (2) and brake pedal posi-
tion switch (if equipped) (1) contact ends to brake pedal bracket
(3) clearance (A) are within specification.
CAUTION:
• Make sure that the clearance (A) between the brake pedal
bracket (3), stop lamp switch (2) and the brake pedal posi-
tion switch (1) contact ends are within specification.
• The stop lamp must turn off when the brake pedal is
released.
JPFIA0003ZZ
Brake pedal height (H
1
) : Refer to
JPFIA0279ZZ
ALFIA0248ZZ
BRAKE FLUID
BR-17
< PERIODIC MAINTENANCE >
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BRAKE FLUID
Drain and Refill
INFOID:0000000009755996
CAUTION:
• Do not spill or splash brake fluid on painted surfaces. Brake fluid may damage paint. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• Prior to repair, turn the ignition switch OFF, disconnect the ABS actuator and electric unit (control
unit) connector or negative battery terminal. Refer to
.
• Refill brake system with new brake fluid. Refer to
MA-11, "Fluids and Lubricants"
.
• Do not reuse drained brake fluid.
DRAINING
1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector or nega-
tive battery terminal. Refer to
2. Connect a vinyl tube to bleeder valve.
3. Depress brake pedal, loosen bleeder valve, and gradually
remove brake fluid.
REFILLING
1. Make sure no foreign material exists in the reservoir and refill with new brake fluid.
CAUTION:
Do not reuse drained brake fluid.
2. Refill the brake system as follows:
• Depress the brake pedal.
• Loosen bleeder valve.
• Slowly depress brake pedal to 2/3 of the brake pedal full stroke.
• Tighten bleeder valve.
• Release brake pedal.
Repeat this operation at intervals of two or three seconds until all old brake fluid is discharged. Add new
brake fluid to master cylinder reservoir sub tank frequently.
CAUTION:
Do not allow master cylinder reservoir to empty as this may cause damage to master cylinder
internal components.
3. Bleed the air out of the brake hydraulic system. Refer to
BR-17, "Bleeding Brake System"
.
Bleeding Brake System
INFOID:0000000009755997
CAUTION:
• Do not spill or splash brake fluid on painted surfaces. Brake fluid may damage paint. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• While bleeding, pay attention to master cylinder fluid level.
• Before working, disconnect ABS actuator and electric unit (control unit) connectors or negative bat-
tery terminal. Refer to
.
1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector or nega-
tive battery terminal. Refer to
2. Connect a vinyl tube to rear right brake bleeder valve.
3. Fully depress brake pedal 4 or 5 times.
4. With brake pedal depressed, loosen bleeder valve to bleed air in brake line, and then tighten it immedi-
ately.
BRA0007D
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