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Front Axle: Removal & Installation Mazda CX-9 I

Wheel Hubs 19 illustrations ~540 words

WHEEL HUB, STEERING KNUCKLE REMOVAL/INSTALLATION

CAUTIONPerforming the following procedures without first removing the ABS wheel-speed sensor may possibly cause an open circuit in the wiring harness if it is pulled by mistake. Before performing the following procedures, disconnect the ABS wheel-speed sensor connector (axle side) and fix the wiring harness to an appropriate place where it will not be pulled by mistake while servicing the vehicle.

Scheme 15

Scheme 15
  1. Remove the front ABS wheel-speed sensor. (See «FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION»(ref-345371-S20816873332009102000000) .)
  2. Remove in the order indicated in the table.
  3. Install in the reverse order of removal.
  4. After installation, inspect the front wheel alignment and adjust it if necessary. (See «FRONT WHEEL ALIGNMENT»(ref-345390-S26624614712009102000000) .)

Scheme 16

Scheme 16: Locknut Removal Note

Scheme 17

Scheme 17
  1. Lock the hub by applying the brakes.
  2. Knock the crimped portion of the locknut outward using a small chisel and a hammer.
  3. Remove the locknut.
  4. Install a spare nut onto the drive shaft so that the nut is flush with the end of the drive shaft.
  5. Tap the nut with a copper hammer to loosen the drive shaft from the front wheel hub.
  6. Separate the drive shaft from the wheel hub.

Scheme 18

Scheme 18: Brake Caliper Removal Note
  1. Remove the brake caliper component from the steering knuckle and suspend it out of the way using a cable.

Scheme 19

Scheme 19: Wheel Hub Removal Note

Scheme 20

Scheme 20
  1. Remove the wheel hub using the SSTs. Substitution SST 49G033105 Outer diameter: 37-43 mm {1.5-1.6 in}
  2. If the bearing inner race remains on the front wheel hub component, grind a section of the bearing inner race until approx. 0.5 mm {0.02 in} remains. Then remove it using a chisel.

Scheme 21

Scheme 21: Wheel Bearing Removal Note
  1. Remove the wheel bearing using the SSTs. Substitution SST 49G033 106 Outer diameter: 54-63 mm {2.2-2.4 in}

Dust Cover Removal Note

Note. The dust cover does not need to be removed unless it is being replaced.

Scheme 22

Scheme 22: Dust Cover Removal Note

Scheme 23

Scheme 23
  1. Mark the dust cover and steering knuckle for proper installation.
  2. Remove the dust cover using a chisel.

Wheel Hub Bolt Removal Note

Note. The hub bolts do not need to be removed unless they are being replaced.

Scheme 24

Scheme 24: Wheel Hub Bolt Removal Note
  1. Remove the hub bolt using a press.

Scheme 25

Scheme 25: Wheel Hub Bolt Installation Note
  1. Install the new hub bolt using a press.

Scheme 26

Scheme 26: Dust Cover Installation Note

Scheme 27

Scheme 27
  1. Mark the new dust cover in the same way as the removed one.
  2. Align the marks of the new dust cover and the knuckle.
  3. Install the new dust cover using the SSTs. Substitution SST 49 G033 107 A Inner diameter: 98-108 mm {3.9-4.2 in} Tube with board thickness 3 mm {0.2 in} or more 49 F027 009 Outer diameter: 77-82 mm {3.1-3.2 in}

Scheme 28

Scheme 28: Wheel Bearing Installation Note
  1. Install the new wheel bearing using the SSTs. Substitution SST 49 F027 004 Outer diameter: 78-83 mm {3.1-3.2 in} 49 F027 009 Outer diameter: 77-82 mm {3.1-3.2 in}

Scheme 29

Scheme 29: Wheel Hub Installation Note
  1. Install the wheel hub using the SSTs. Substitution SST 49 G033 105 Outer diameter: 39-48 mm {1.6-1.8 in} 49 B025 004 Outer diameter: 54-63 mm {2.2-2.4 in}

Scheme 30

Scheme 30: Locknut Installation Note
  1. Install a new locknut and stake it as shown.

Scheme 31

Scheme 31: FRONT WHEEL HUB BOLT REPLACEMENT

Scheme 32

Scheme 32

Scheme 33

Scheme 33
  1. Remove the brake calliper component from the steering knuckle and suspend it out of the way using a cable.
  2. Remove the disc plate.
  3. Tap the dust cover (the part shown in the figure) with a chisel lightly and bend the processing point back to the steering knuckle side.
  4. Remove the wheel hub bolt using the SST as shown in the figure.
  5. Place a new wheel hub bolt in the wheel hub.
  6. Install the wheel hub by placing a proper sized washer on the hub, and tightening the nut as shown in the figure.