Husqvarna HUV4420 Service Manual page 49

HYDRAULIC AND PARK BRAKE SYSTEMS
5. Remove the two hex-head bolts that secure the caliper assembly to the upright (Figure 5-8, Page 5-10).
See following CAUTION.
CAUT ION
• Wrap a plastic wire tie around the caliper body to a place on the frame so that it does not hang
suspended by the hydraulic brake hose.
6. Remove the outer tie rod end from the upright.
7. Remove the lower ball joint from the upright (Figure 5-9, Page 5-11).
Figure 5-9 Lower Ball Joint and Upright
8. Remove the upper ball joint from the upright (Figure 5-10, Page 5-11). See following NOTE and CAU-
TION.
NOTE: It may be necessary to use a ball joint removal tool to separate the ball joint stud from the upright.
CAUT ION
• Take care when separating the ball joint stud from the upright so as not to tear or puncture the
rubber seal around the ball socket. If damaged, the ball joint with rubber boot must be
replaced.
9. Remove the wheel hub, disc, and bearing assembly from the splined spindle and CV joint half shaft.
10. Remove the wheel hub and disc from the bearing and upright. See following CAUTION and NOTE.
CAUT ION
• The wheel disc and hub are one piece, and the splined shaft of the hub is press-fit into the
wheel bearing. Removing the wheel hub and disc splined shaft will destroy the wheel bearing
and will require a new wheel bearing during assembly.
NOTE: Removing the wheel disc and hub from the bearing will require the use of a hydraulic press.
10.1. Place 2 x 2-inch, or larger, steel blocks (1) onto the platen bars of a hydraulic press (Figure 5-11,
Page 5-12).
10.2. Position the disc (6) and upright (5) between the blocks.
10.3. Place a 2 x 1/4-inch flat steel bar (2) under each of the two tabs on the upright (5) on the steel blocks
(1).
2005 HUV4420 Gasoline and HUV4420-D Diesel Vehicle Maintenance and Service Manual
Figure 5-10 Upper Ball Joint and Upright
5
Brake Disc and Hub
Page 5-11