1998 NISSAN PATROL Front Suspension Workshop Manual

4. Apply multi-purpose grease to each bearing cone.
5. Pack grease seal lip with multi-purpose grease, then install it
into wheel hub with suitable drift.
6. Install hub to brake rotor.
:50-68Nzm (5.1 - 6.9 kg-m, 37 - 50 ft-lb)
FA781
SFA126
SFA199
FRONT AXLE Ð Wheel Hub and Rotor Disc
Assembly (Cont'd)
FA-16

Removal
Drain differential oil completely prior to removal.
1. Remove baffle plate and knuckle spindle.
2. Draw out drive shaft.
Draw out to remove the drive shaft in the axial direction with
the ¯at surface facing up.
SFA867B
SFA868B
SFA869B
FRONT AXLE Ð Knuckle Flange
FA-17

3. Disconnect tie-rod ends.
Refer to ST section.
4. Remove upper and lower bearing caps with inner bearing and
O-ring.
5. Remove seal guard ®xing bolts.
6. Remove seal guard.
Separate scraper, grease seal and supporting ring from knuckle
¯ange.
7. Remove knuckle ¯ange, supporting ring, grease seal and
scraper from axle case.
SFA870B
SFA871B
SFA872B
SFA873B
FRONT AXLE Ð Knuckle Flange
Removal (Cont'd)
FA-18

8. Remove bearing outer race and kingpin plug.
9. Remove oil seal from axle shaft.
Inspection
KNUCKLE FLANGE BEARING CAP
Replace knuckle ¯ange bearing if it is worn, pitted or corroded.
KNUCKLE FLANGE
Replace knuckle ¯ange if it is cracked.
Installation
1. Check kingpin plug for damage before installing. If damaged,
use a new one.
SFA874B
SFA875B
SFA870B
SFA894B
SFA877B
FRONT AXLE Ð Knuckle Flange
Removal (Cont'd)
FA-19

2. Using Tool, place bearing outer race in trunnion socket.
3. Install oil seal with tool.
4. Place scraper, grease seal and supporting ring in axle case.
Grease lip and circumference seals in axle case.
5. Apply recommended grease around trunnion socket spherical
area, then place knuckle ¯ange in trunnion socket.
6. Adjust rotating force of knuckle ¯ange (at hinge pin) to 4.9 to
14.7 N (0.5 to 1.5 kg, 1.1 to 3.3 lb) range by adding or remov-
ing upper and lower shims of same thickness. This adjustment
must be made without installing grease seal and axle shaft.
Shim thicknesses: Refer to SDS.
SFA878B
SFA879B
SFA880B
SFA881B
SFA882B
FRONT AXLE Ð Knuckle Flange
Installation (Cont'd)
FA-20

7. Install bearing cap with inner bearing and adjusting shim.
Before installing seal guard, scraper, grease seal and support-
ing ring (as a unit), apply approx. 50 g (1.76 oz) of wheel bear-
ing grease to perimeters shown in ®gure at left.
Slits located in scraper and supporting ring should point
straight downward when installed.
8. When installing grease seal guard, adjust so painted surface is
visible.
Install knuckle ¯ange stopper bolt and nut on stopper side of
axle case.
After installing tie rod, adjust it to speci®ed steering angle
using turning radius gauge, then tighten with lock nut.
Knuckle Flange Grease Seal
To replace only knuckle ¯ange grease seal, proceed as follows.
REMOVAL
1. Turn steering wheel to both the extreme right and left, and
remove grease seal guard and scraper from knuckle ¯ange.
2. Extract grease seal and remove it by cutting it from axle case.
SFA883B
SFA876B
SFA884B
SFA885B
FRONT AXLE Ð Knuckle Flange
Installation (Cont'd)
FA-21

INSTALLATION
1. Cut off a part of new grease seal and ®ll lip portion with grease.
Then insert grease seal into axle case.
Cut grease seal so that cut surface is straight.
2. Apply adhesive to cut surface of grease seal.
Install grease seal so that its cut surface is above knuckle
¯ange.
Be sure not to allow adhesive to protrude beyond cut surface
of grease seal.
3. Install scraper and grease seal guard on knuckle ¯ange.
After replacing grease seal, adjust steering wheel to speci®ed
turning angle with a turning radius gauge. Then tighten lock
nut.
4. When installing grease seal guard, adjust so painted surface is
visible.
SFA886B
SFA887B
SFA876B
FRONT AXLE Ð Knuckle Flange
Knuckle Flange Grease Seal (Cont'd)
FA-22

Inspection
Check wheel shaft for signs of binding when turned in a twisting
motion. Also check for cracks or damage.
Installation
+Before positioning drive shaft in axle case, pack shaft joint with
recommended grease. Refer to MA section (``Fluids and
Lubricants'', ``RECOMMENDED FLUIDS AND LUBRICANTS'').
+Install drive shaft.
Insert the drive shaft with the ¯at surface facing up.
SFA447A
SFA448A
SFA869B
FRONT AXLE Ð Drive Shaft
FA-23