Removing and installing rear wheel hub Mazda 3

Rear wheel hub components are shown in fig. 1.

Checking the clearance in the rear wheel hub bearing

Remove the rear wheel

Disconnect the front disc brake caliper.

Fig. 1 Rear wheel hub components: 1 – hub cap; 2 - locknut; 3 – a cable of parking brake system; 4 - brake caliper; 5 - brake disc; 6 - wheel hub assembly; 7 - wheel hub; 8 - hub bolts; 9 - the rotor of the sensor of the anti-lock braking system of brakes (with anti-lock braking system of brakes); 10 - protective cover; 11 - hub axle
Fig. 2 Removing the brake disc

Remove the brake disc (fig. 2)

Fig. 3 Checking the clearance in the rear wheel bearing

Mount the dial indicator against the wheel hub (fig. 3).

While moving the wheel hub manually in the axial direction, measure the clearance in the hub bearing.

Maximum: 0.05 mm. If the clearance exceeds the maximum, replace the bearing.

Performing the following procedures without first removing the ABS wheel speed sensor may result in an open circuit in the wiring harness if the harness is taut by mistake.

Before performing the following steps, remove the ABS wheel speed sensor (body side) and mount it in a suitable location where the sensor will not be mistakenly damaged during maintenance.

Removing and installing the rear wheel hub

Fig. 4 Knocking out the collar of the wheel hub locknut

Knock out the bent part of the locknut with a small chisel and hammer (fig. 4).

Lock the hub by applying the brake. Loosen the locknut.

The anti-lock brake sensor rotor can only be removed if it is replaced.

Fig. 5 Removing the ABS sensor rotor

Using a chisel, remove the ABS sensor rotor (fig. 5).

Fig. 6 Correct installation of the ABS sensor rotor: 1 – wheel hub; 2 - ABS sensor rotor

In order to install the ABS sensor rotor, orient the special tool so that the marking B is facing down (Fig. 6)

Fig. 7 Pressing in the ABS sensor rotor

Press the new sensor rotor using the special tool and a press (fig. 7)

Fig. 8 Fitting a new locknut

Install the new locknut and lock it as shown in Figure 8