Nissan Sentra Service Manual: Front disc brake
BRAKE PAD
BRAKE PAD : Exploded View

- Cylinder body
- Inner shim cover
- Inner shim
- Inner pad (with pad wear sensor)
- Pad retainer
- Torque member
- Outer pad
- Outer shim
- Outer shim cover
- Molykote AS880N
- Molykote 7439
BRAKE PAD : Removal and Installation
REMOVAL
WARNING:
Clean dust on brake caliper and brake pad with a vacuum dust collector
to minimize the hazards of airborne
particles or other material.
CAUTION:
- Do not depress the brake pedal while removing the brake pads
because the pistons may pop out.
- It is not necessary to remove bolts on torque member and brake
hose except for disassembly or
replacement of brake caliper. For brake pad removal, hang brake caliper with
a wire so as not to
stretch brake hose.
- If brake fluid or grease adheres to the brake caliper or disc
rotor, quickly wipe it off.
- Partially drain brake fluid from the master cylinder. Refer to BR-17,
"Drain and Refill".
- Remove front wheels and tires using power tool. Refer to WT-47, "Removal
and Installation".
- Remove sliding pin bolts.
- Remove the brake caliper from the torque member. Leaving brake hose
attached, reposition the brake
caliper aside with wire.
- Remove the brake pads, shims, shim covers and pad retainers from the
torque member.
CAUTION:
- Do not deform the pad retainer (2) when removing the pad
retainer from the torque member (1).
- Do not damage the piston boot.
- Do not drop the brake pads, shims, and the shim covers.
- Note the position of components during removal to aid
with installation.

INSTALLATION
- Install the pad retainers (1) to the torque member (2) if the pad
retainers have been removed.
CAUTION:
- Do not deform brake pad retainers.
- Verify pad retainers are secured properly to torque member.

- Apply Molykote AS880N or equivalent to the mating faces (A)
between the inner pad (1) and the inner shim (2), and install the
inner shim and inner shim cover (3) to the inner pad.
CAUTION:
Always replace the shim and shim cover when replacing
the brake pad.

- Apply Molykote AS880N or silicone-based grease to the mating
faces (A) between the outer shim (1) and the outer shim cover
(2), and install the outer shim and outer shim cover to the outer
pad (3).
CAUTION:
Always replace the shim and shim cover when replacing
the brake pad.

- Apply Molykote 7439 or equivalent to the mating faces (A)
between the brake pads (1) and the pad retainers.

- Install the brake pads to the torque member.
CAUTION:
- Both inner and outer pads have a pad return system on
the pad retainer. Install pad return lever (1) securely to pad
retainer (2).
- Do not deform the pad retainers.

- Using a suitable tool, press piston into the brake caliper.
CAUTION:
Do not damage the piston boot.
- Install cylinder body to torque member.
- Install the sliding pin bolts and tighten them to specified torque.
- Depress the brake pedal several times to verify that drag does not
exist.
- Install front wheels and tires. Refer to WT-47, "Removal and
Installation".
Brake caliper assembly
BRAKE CALIPER ASSEMBLY : Exploded View

- Brake caliper assembly
BRAKE CALIPER ASSEMBLY : Removal and Installation
REMOVAL
WARNING:
Clean dust on brake caliper and brake pad with a vacuum dust
collector to minimize the hazard of airborne
particles or other materials.
CAUTION:
- Do not depress the brake pedal.
- 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.
- Do not bend, twist or pull the brake hoses and piping.
- Do not reuse drained brake fluid.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug
openings to prevent fluid from spilling.
- Remove front wheels and tires using power tool. Refer to WT-47, "Removal
and Installation".
- Secure the disc rotor using wheel nuts.
- Remove union bolt, copper sealing washers, and disconnect brake hose
from brake caliper. Discard the
copper sealing washers.
CAUTION:
Do not reuse copper sealing washers.
- Remove sliding pin bolts and the brake caliper.
CAUTION:
Do not drop brake pads or caliper.
INSTALLATION
- Position the brake caliper to torque member and install the sliding pin
bolts. Tighten to specification.
- Assemble the union bolt (A) and the copper sealing washers (1)
to the brake hose and install it as an assembly to the brake caliper.
Align the brake hose L-pin by aligning it with the brake caliper
hole, and tighten the union bolt (A) to the specified torque.
CAUTION:
Do not reuse copper sealing washers.
- Refill with new brake fluid and perform the air bleeding. Refer to
BR-17, "Bleeding Brake System".
CAUTION:
- Do not reuse drained brake fluid.
- Do not spill or splash brake fluid on the disc rotor.
- Check the front disc brakes for drag. If drag exists, refer to BR-
12, "BRAKE PAD : Inspection".
- Install the front wheels and tires. Refer to WT-47, "Removal and
Installation".

Exploded View
Clamp
Vacuum hose (built-in check valve)
Vacuum piping
Vacuum hose
To intake manifold side
Paint mark
Stamp indicating engine direction
To brake booster
Remo ...
BRAKE CALIPER ASSEMBLY : Exploded View
Shoe hold pin
Back plate
Plug
Brake shoe
Spring
Upper spring
Adjuster
Return spring
Brake drum
Boot
Piston
Piston cup
Spring
W ...
Other materials:
Vehicle Recovery (Freeing a Stuck Vehicle)
Front
Remove the hook cover from the bumper using a remover tool.
Securely install the vehicle recovery hook stored with jacking
tools.
Check that the hook is properly secured in the stored place after use.
WARNING:
Stand clear of a stuck vehicle.
Do not spin your tires at high s ...
Basic inspection
Diagnosis and repair workflow
Work flow
OVERALL SEQUENCE
DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the condition
and the environment when the
incident/malfunction occurred).
>> GO TO 2
2.CONFIRM THE SYMPTOM
Try to ...
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver and front passenger for certain
types of collision. Information necessary to service the system ...
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