1991 1999 ford explorer chilton User Manual

							Before beginning the wheel bearing removal, and after the outer hub is removed, wipe off any
excess grease
After the grease is wiped off, remove the axle shaft snapring ... ... then pull the splined spacer from the axle shaft end HOW TO USE THIS BOOK
916 REMOVAL & INSTALLATION 
						

							Use a 4 pronged socket to loosen the outer wheel bearing locknut ...
... then remove the outer locknut
Remove the lockwasher from behind the outer locknut ... HOW TO USE THIS BOOK
REMOVAL & INSTALLATION 917 
						

							... then loosen and remove the inner locknut-note the lockwasher engagement pin (arrow)
While pushing inwards on the rotor/hub assembly, remove the outer wheel bearing ...
... then pull the rotor/hub assembly from the spindle, taking care not to scratch the bearing cups in the hub
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918 REMOVAL & INSTALLATION 
						

							Pry out the grease seal on the back of the rotor/hub assembly ...
... then remove the inner wheel bearing. Thoroughly clean and inspect all of the parts for wear or damage
To install:
If the inner and outer cups were removed, use bearing driver handle tool T80-900-W or equivalent
and replace the cups. Be sure to seat the cups properly in the hub.
13. 
Use a bearing packer tool and properly repack the wheel bearings with the proper grade and type
grease. If a bearing packer is not available work as much of the grease as possible between the rollers
and cages. Also, grease the cone surfaces.
14. 
Position the inner bearing cone and roller assembly in the inner cup. A light film of grease should be
included between the lips of the new grease seal.
15. 
Install the grease seal by driving in place with hub seal replacer tool T83T-1175-B and Driver
Handle T80T-900-W.
16. 
Install the hub and rotor assembly onto the spindle. Keep the hub centered on the spindle to prevent
damage to the spindle and the retainer.
17. 
Install the outer bearing cone and roller assembly
18. 
Carefully install the rotor onto the spindle. Install the outer wheel bearing in the rotor.
19. 
Install the inner adjusting nut with the pin facing out. Tighten the inner adjusting nut to 35 ft. lbs. (6
Nm) to seat the bearings.
20. 
Follow the appropriate wheel bearing adjustment procedures.
21.  HOW TO USE THIS BOOK
REMOVAL & INSTALLATION 919 
						

							After packing the bearing with grease, position a new seal to the rotor/hub assembly ...
... then, using the correct seal installer, drive the seal into the rotor/hub until it is fully seated
Ensure that the pin on the inner locknut engages one of the holes of the lock washer Click to enlarge
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920 REMOVAL & INSTALLATION 
						

							Tighten the outer wheel bearing locknut to specification
Click to enlarge
Install the splined axle shaft spacer then the snapring Click to enlarge
WITH AUTOMATIC LOCKING HUBS
Raise the vehicle and install jackstands.
1. 
Remove the wheel and tire assembly.
2. 
Remove the retainer washers from the lug nut studs and remove the automatic locking hub assembly
from the spindle.
3.  HOW TO USE THIS BOOK
REMOVAL & INSTALLATION 921 
						

							Remove the snapring and spacer from the end of the spindle shaft.
4. 
Exploded view of the locking cam, thrust washers, locking key and bearing adjuster nut Click to enlarge
Remove the wheel bearing adjusting nut after removing the locking key from under it Click to enlarge
Pull the locking cam assembly and the two plastic spacers off of the wheel bearing adjusting nut.
5. 
Use a magnet and remove the locking key from under the adjusting nut. If required, rotate the
adjusting nut slightly to relieve pressure against the locking key.
6. 
WARNING
To prevent damage to the adjusting nut and spindle threads on vehicles equipped with automatic hubs, look
into the spindle keyway under the adjusting nut and remove the separate locking key before removing the
adjusting nut.
Remove the wheel bearing locknut using a 2- 3
/8  inch (60.3mm) hex socket, such as Hex Locknut
Wrench T70T-152-B.
7.  HOW TO USE THIS BOOK
922 REMOVAL & INSTALLATION 
						

							Remove the outer bearing cone and roller assembly from the hub. Remove the hub and rotor from the
spindle.
8. 
Using seal removal tool 1175-AC or equivalent remove and discard the grease seal. Remove the
inner bearing cone and roller assembly from the hub.
9. 
Clean the inner and outer bearing assemblies in solvent. Inspect the bearings and the cones for wear
and damage. Replace defective parts, as required.
10. 
If the cups are worn or damaged, remove them with front hub remover tool T81P-1104-C and tool
T77F-1102-A or equivalent.
11. 
Wipe the old grease from the spindle. Check the spindle for excessive wear or damage. Replace
defective parts, as required.
12. 
To install: If the inner and outer cups were removed, use bearing driver handle tool T80-900-W or equivalent
and replace the cups. Be sure to seat the cups properly in the hub.
13. 
Use a bearing packer tool and properly repack the wheel bearings with the proper grade and type
grease. If a bearing packer is not available work as much of the grease as possible between the rollers
and cages. Also, grease the cone surfaces.
14. 
Position the inner bearing cone and roller assembly in the inner cup. A light film of grease should be
included between the lips of the new grease seal.
15. 
Install the grease seal by driving in place with hub seal replacer tool T83T-1175-B and Driver
Handle T80T-900-W.
16. 
Install the hub and rotor assembly onto the spindle. Keep the hub centered on the spindle to prevent
damage to the spindle and the retainer.
17. 
Install the outer bearing cone and roller assembly.
18. 
Carefully install the rotor onto the spindle. Install the outer wheel bearing in the rotor.
19. 
Install the adjusting nut and tighten 35 ft. lbs. (6 Nm) to seat the bearings.
20. 
Follow the appropriate wheel bearing adjustment procedures.
21.  HOW TO USE THIS BOOK
REMOVAL & INSTALLATION 923 
						

							When installing the outer hub cover, align the cam pockets with the legs on the cover
Click to enlarge
Mountaineer, 1995-99 Explorer and 1998-99 Ranger HOW TO USE THIS BOOK
924 REMOVAL & INSTALLATION 
						

							
Exploded view of the Mountaineer, 1995-99 Explorer and 1998-99 Ranger sealed front wheel bearing and related
components
Click to enlarge
WARNING
If equipped, always turn off the Automatic Ride Control (ARC) service switch before lifting the vehicle off of
the ground. Failure to do so could damage the ARC system components. Refer to Section 1 for jacking
procedures.
Loosen the wheel lug nuts then raise and safely support the front of the vehicle.
1. 
Remove the wheels.
2. 
Remove the front disc brake caliper, bracket and rotor. Also remove the rotor splash shield.
3. 
If equipped, unbolt the front wheel ABS sensor and wire harness from the steering knuckle.
4. 
Remove the front wheel hub nut and washer.
5. 
WARNING
Never reuse the wheel hub nut and washer. This nut is a torque prevailing design and cannot be reused.
The hub shaft is a slip fit into the wheel hub and bearing; a press is not normally required.
Ensure that the wheel hub shaft can be pushed inwards. If not, assemble a press to the front wheel
studs and press the wheel hub shaft inwards slightly to break it loose.
6. 
Remove the three wheel hub/bearing to steering knuckle retaining bolts. Remove the hub and bearing
assembly.
7. 
To install: Install the ABS sensor to the wheel hub then position the hub to the front axle shaft and steering
knuckle.
8. 
Install the three retaining bolts and tighten them to 70-80 ft. lbs. (95-108 Nm).
9. 
Install the hub washer and nut and tighten to 157-213 ft. lbs. (212-288 Nm).
10. 
Install the ABS sensor retaining bolt.
11. 
Install the front brake rotor shield, rotor, bracket and caliper.
12. 
Install the wheel and snug the lug nuts.
13. 
Lower the vehicle and tighten the lug nuts to 100 ft. lbs. (135 Nm).
14. 
ADJUSTMENT
Except Mountaineer, 1995-99 Explorer and 1998-99 Ranger
WITH MANUAL LOCKING HUBS
Exploded view of the manual locking hubs and wheel bearingsHOW TO USE THIS BOOK
ADJUSTMENT 925