Genuine Volvo 740 Wheel Hub

Volvo 740 Wheel Hub Parts and Q&A

• Hub Assembly
  271643
  Q: How to replace the wheel bearings and wheel hub on Volvo 740?

  A:

  The front wheel bearings on front drive vehicles are not adjustable and if the lateral amount of run-out on the hub with the disc removed is greater than 0.0007 inch (0.020mm) then the hub will need to be replaced. To remove and install components on 850, 870, C70 and V70 models, first raise and safely support the vehicle before removing the wheel. Disconnect the ABS sensor from the axle shaft without disconnecting the connector and hang it out of the way. Next, remove the caliper, carrier and rotor, making sure to hang the caliper safely. Proceed to remove halfshaft, separate Ball Joint from the Control Arm and disconnect the sway bar link. Remove the 4 bolts holding the hub and extract the hub. For installation, clean the axle shaft and the hub mating surface and clean the ABS sensor with a soft brush. Install the new hub, tightening the bolts one by one, to 33 ft. lbs. (45 Nm) + 60 degrees. Insert the axle shaft into the hub, fit the splines and tighten the new axle shaft nut by hand. Connect the ball joint to the control arm with new nuts and then connect the sway bar link. Install the brake rotor, carrier and caliper, tightening the axle nut to 89 ft. lbs. (120 Nm) plus an additional 60 degrees, using tool 5461 or an equivalent to counterhold, and lock the axle shaft nut with a chisel. Clean the ABS sensor and its seat and tighten the sensor to 84 inch lbs. (10 Nm) and then install the wheels and lower the vehicle.
• Hub Assembly
  271644
  Q: How are the Wheel Bearing and Wheel Hub replaced as a single component on Volvo 740?

  A:

  Bearing & hub are replaced as a single unit, as bearing is not available separately. Start by lifting and securely supporting the car, and then remove the wheels. Next, take the caliper and the brake line off the mounting clip, remember to take out the three-way brake line connector mounting bolt when the left brake caliper is taken off, hang the caliper from the spring to avoid damaging the brake hose. Back off the parking brake adjustment so that you can remove the rotor and do so. For installation, clean the stub axle clean, then install the hub with a new nut and tighten it to 89 ft. lbs. (120 Nm) with 30 degrees more, making sure there isn't any play on the bearings thereafter. Use the appropriate tool to install the dust cap, and clean the mating surfaces of the hub and rotor. Install the rotor and guide pin and tighten the pin to 7 ft. lbs. (9 Nm). Adjust parking brake shoes until the disc cannot be turned, and then back it off four to six notches. Reinstall the brake caliper, brake line and brake mounting clips, including the three way connector on the left hand side if applicable. Finally, you need to install the wheels and bring the vehicle down.