Front Axle; Replace Steering Knuckle - Taylor-Dunn B5-540-48XL Service And Replacement Parts Manual

Front Axle

REPLACE STEERING KNUCKLE

WARNING
This section is one section of a complete service
manual. Before starting any procedure, read all
warnings and instructions that are located in the
Service Guidelines chapter.
Remove
1: Raise the front of the vehicle and support with
jack stands.
2: Remove the tire/wheel assembly. Refer to Tires
and Wheels section for information regarding
removing the tire/wheel assembly.
3: Remove the hub bearing cap, cotter pin and nut,
then remove the hub from the steering knuckle.
WARNING
Do not allow the brake body or caliper to hang by the
brake hose. Hanging by the brake hose may damage
the brake hose resulting in loss of brakes which may
cause serious bodily injury and/or property damage.
Note: If equipped with front brake option you must
remove the brake body before removing
the hub. Refer to the Brakes section for
information regarding the removal of the
brake body. Do not remove the hydraulic
brake line from the brake body. If the brake
line is removed then it will be necessary to
bleed the brakes.
4: Remove the ball joint from the steering arm.
5: Remove the steering stop bolt.
6: Remove the king pin nut.
7: Using a large brass drift punch, drive the king pin
out of the axle and remove the steering knuckle
and thrust bearing.
Page 34
B5-440-36 / B5-440-48 / B5-540-48XL / BF-030-48
Install
1: Thoroughly clean the kingpin,
thrust bearing, knuckle, wheel
bearings, and hub.
2: Inspect the thrust bearing
bronze washer. Replace if any
grooves worn flat.
3: Pack the thrust bearing with grease.
4: Lightly coat the kingpin bushings with grease.
5: Place the thrust bearing on top of the steering
knuckle with the inner race facing down.
6: Insert the knuckle bearing assembly into the
axle and insert the kingpin up from the bottom
mounting flange.
7: Install the steering stop bolt.
8: Tighten the kingpin nut so that there is no vertical
play in the knuckle but it still turns freely.
9: Install the ball joint and tighten nut to torque
specified at the end of this section.
10: Pack wheel bearings with grease.
11: Install the rear bearing and new grease seal.
12: Install the hub onto the spindle and adjust the
bearing preload per procedure in the section.
13: Install a new cotter pin and bearing cap.
14: Grease the bushings.
15: Install the wheel, remove the blocks from behind
the wheels and test drive the vehicle.
MB-440-06