Contents Wiring diagrams Section: Mechanical - Hydraulic All sections

Front Brake: Other Suzuki Equator I

Mechanical - Hydraulic 13 illustrations ~1007 words

PAD WEAR

Check pad thickness from the inspection holes on cylinder body. Check using a scale if necessary.

Scheme 44

Scheme 44: PAD WEAR

Standard thickness (new): Refer to [ SERVICE DATA AND SPECIFICATIONS ].

Repair limit thickness: Refer to [ SERVICE DATA AND SPECIFICATIONS ].

VISUAL

Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace as necessary.

Scheme 45

Scheme 45: RUNOUT
  1. Attach disc rotor to wheel hub using wheel nuts at two or more positions.
  2. Inspect runout using a dial gauge placed at 10 mm (0.39 in) inside the disc edge. Runout limit: Refer to [ «SERVICE DATA AND SPECIFICATIONS»(ref-375730-S25077586582010102800000) ]. (with it attached to the vehicle) NOTE: Before measuring, make sure that wheel bearing axial end play is within the specification. Refer to [ «WHEEL HUB: ON-VEHICLE INSPECTION AND SERVICE»(ref-375728-S33594066432010102800000) ].
  3. When runout exceeds limit value, displace mounting positions of disc rotor by one hole. And then find a position of the minimum value for runout.
  4. If runout is outside the specified value after performing the above operation, turn disc rotor using Tool. Tool number: 38-PFM90.5 ( - )

THICKNESS

Check thickness of the disc rotor using a micrometer. Replace disc rotor if thickness is less then the repair limit thickness.

Scheme 46

Scheme 46: THICKNESS

Standard thickness (new): Refer to [ SERVICE DATA AND SPECIFICATIONS ].

Repair limit thickness: Refer to [ SERVICE DATA AND SPECIFICATIONS ].

Maximum uneven wear (measured at 8 positions): Refer to [ SERVICE DATA AND SPECIFICATIONS ].

Scheme 47

Scheme 47: Front Brake Pad: Exploded View
WARNINGClean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne particles or other materials.
CAUTIONWhile removing brake pads never depress brake pedal because piston will pop out. It is not necessary to remove bolts on torque member and brake hose except for disassembly or replacement of caliper body. In this case, hang caliper body with a wire so as not to stretch the brake hose. Do not damage the piston boot. If any shim is subject to serious corrosion, replace it with a new one. Always replace shim and shim cover as a set when replacing brake pads. Keep rotor free from brake fluid. Burnish the brake contact surface after refinishing or replacing rotors, after replacing pads, or if a soft pedal occurs at very low mileage. Refer to [ BRAKE BURNISHING ].

Brake Burnishing

Burnish brake contact surface according to the following procedure after refinishing or replacing rotors, after replacing pads, or if a soft pedal occurs at very low mileage.

CAUTIONOnly 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 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.

Scheme 48

Scheme 48: Front Brake Caliper: Exploded View [On-Vehicle Repair]
WARNINGClean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of airborne particles or other materials.
CAUTIONWhile removing caliper body never depress brake pedal because piston will pop out. It is not necessary to remove bolts on torque member and brake hose except for disassembly or replacement of caliper body. In this case, hang caliper body with a wire so as not to stretch the brake hose. Do not damage the piston boot. If any shim is subject to serious corrosion, replace it with a new one. Always replace shim and shim cover as a set when replacing brake pads. Keep rotor free from brake fluid. Burnish the brake contact surface after refinishing or replacing rotors, after replacing pads, or if a soft pedal occurs at very low mileage. Refer to [ BRAKE BURNISHING ].

Scheme 49

Scheme 49: REMOVAL

Scheme 50

Scheme 50

Scheme 51

Scheme 51
  1. Remove the front wheel and tire. Refer to [ «WHEEL AND TIRE ASSEMBLY: ROTATION»(ref-375729-S18715319452010102800000) ]
  2. Drain the brake fluid. Refer to [ «BRAKE FLUID: DRAIN AND REFILL»(ref-375716-S03598360652010102800000) ] CAUTION: Refill with new brake fluid. Do not reuse drained brake fluid.
  3. Remove the union bolt then disconnect the brake hose and discard the copper washers. CAUTION: Discard the copper washers, do not reuse.
  4. Remove the sliding pin bolts and remove the caliper body from the torque member.
  5. Remove the brake pads, shims, shim covers and retainers from the torque member.
  6. Remove the torque member bolts and remove the torque member.
  7. Remove the disc rotor. If reusing the disc rotor, apply a matching mark as shown for installation. CAUTION: Put matching marks on the wheel hub assembly and disc rotor, if reusing the disc rotor.

Scheme 52

Scheme 52: INSTALLATION

Scheme 53

Scheme 53

Scheme 54

Scheme 54
  1. Install the disc rotor. If reusing the disc rotor, align the matching marks as shown for installation. CAUTION: Align the matching marks on the wheel hub assembly and disc rotor, if reusing the disc rotor.
  2. Install torque member and tighten the torque member bolts to specification. Refer to [ «FRONT BRAKE CALIPER: EXPLODED VIEW [ON-VEHICLE REPAIR]»(ref-375730-S22930358172010102800000) ].
  3. Install the brake pads, shims, shim covers and retainers on the torque member. Refer to [ «FRONT BRAKE PAD: EXPLODED VIEW»(ref-375730-S16082885922010102800000) ].
  4. Install caliper body and sliding pins, then tighten the sliding pin bolts to the specified torque. Refer to [ «FRONT BRAKE CALIPER: EXPLODED VIEW [ON-VEHICLE REPAIR]»(ref-375730-S22930358172010102800000) ]. CAUTION: When installing the caliper body to the torque member, wipe any oil off of the knuckle spindle, washers and caliper body attachment surfaces.
  5. Install brake hose by aligning with the protrusion on caliper body, then install new copper washers and union bolt. Tighten union bolt to specified torque. Refer to [ «FRONT BRAKE CALIPER: EXPLODED VIEW [ON-VEHICLE REPAIR]»(ref-375730-S22930358172010102800000) ]. CAUTION: Use new copper washers for installation.
  6. Refill with new brake fluid as necessary and bleed the air. Refer to [ «BRAKE FLUID: BLEEDING BRAKE SYSTEM»(ref-375716-S31470231532010102800000) ] CAUTION: Refill with new brake fluid. Do not reuse drained brake fluid.
  7. Install the front wheel and tire. Refer to [ «WHEEL AND TIRE ASSEMBLY: ROTATION»(ref-375729-S18715319452010102800000) ]

Refer to [ FRONT BRAKE CALIPER: EXPLODED VIEW [ON-VEHICLE REPAIR] ].

Scheme 55

Scheme 55: DISASSEMBLY

Scheme 56

Scheme 56
  1. Remove the caliper body from the torque member. Refer to [ «FRONT BRAKE CALIPER AND DISC ROTOR: REMOVAL AND INSTALLATION»(ref-375730-S15234368192010102800000) ].
  2. Remove the upper sliding pin, lower sliding pin, and sliding pin boots from the torque member. CAUTION: Upper sliding pin must be replaced at each service.
  3. Place a wooden block as shown, and then blow air from the union bolt hole to remove the pistons and piston boots. WARNING: Do not get your fingers caught between the pistons and wooden block.
  4. Remove the piston boots from the pistons. CAUTION: Do not reuse piston boot.
  5. Remove piston seals from cylinder body, using a suitable tool. CAUTION: Be careful not to damage cylinder body inner wall. Do not reuse piston seal.
  6. Remove the bleed valve and cap.

Cylinder Body

  1. Check the inside surface of the cylinder body for score, rust, wear, damage or foreign materials. If any of the above conditions are observed, replace the cylinder body.
  2. Minor damage from rust or foreign materials may be eliminated by polishing surface with a fine emery paper. Replace cylinder body if necessary. CAUTION: Use new brake fluid for cleaning. Do not use mineral oils such as gasoline or kerosene.

Piston

Check the pistons for score, rust, wear, damage or presence of foreign materials. Replace if any of these conditions are observed.

CAUTIONPiston sliding surface is plated, do not polish with emery paper even if rust or foreign materials are stuck to sliding surface.

Sliding Pins, and Sliding Pin Boots

Check the sliding pins and sliding pin boots for wear, damage, and cracks. If damage or deformation is present, replace the affected part.

CAUTIONUpper sliding pin must be replaced at each service.

Front Disc Brake

Unit: mm (in)
Engine typeQR25DE / VQ40DE
Brake modelCLZ33VA
Brake padStandard thickness (new)10.0 (0.394)
Repair limit thickness2.0 (0.079)
Disc rotorStandard thickness (new)28.0 (1.102)
Repair limit thickness26.0 (1.024)
Maximum uneven wear (measured at 8 positions)0.015 (0.0006)
Runout limit (with it attached to the vehicle)0.05 (0.0020)

FRONT DISC BRAKE SPECIFICATIONS

Special Service Tool

Refer to [ SPECIAL SERVICE TOOL ].

Commercial Service Tool

Refer to [ COMMERCIAL SERVICE TOOL ].