Dodge Ram Truck 1500-2500-3500. Manual — part 110
DIFFERENTIAL CASE BEARING PRELOAD AND GEAR BACKLASH
Backlash is adjusted by moving the adjusters in and
out or both. By moving the adjusters the case/ring
gear will move closer or further away from the pinion.
In most cases this adjustment can be used to achieve
the correct gear tooth pattern and set the case bear-
ing preload.
1. Remove adjuster lock bolts (3) and adjuster locks
(2).
2. Loosen the differential bearing cap bolts (4).
3. Slide differential case (1) toward the pinion gear
until the gears make contact/zero backlash. If zero
backlash cannot be obtained, turn the pinion side
adjuster until zero backlash is obtained.
4. Holding the differential case (2) toward the pinion
gear, turn bearing adjusters with Spanner Wrench
8883 (1) until they make contact with the differen-
tial bearings/cups.
5. Back off the ring gear side adjuster 4 holes, to
obtain initial ring gear backlash.
6. Install ring gear side adjuster lock and bolt. Do not
tighten adjuster lock bolt at this time.
7. Tighten pinion gear side adjuster firmly against the
differential case bearing cup.
8. Rotate the pinion several times to seat the defer-
ential bearings.
9. Loosen pinion gear side adjuster until it is no
longer in contact with the bearing cup, then tighten
it until it makes contact.
10. Tighten pinion gear side adjuster an additional:
•
New Bearings: 6 Adjuster Holes
•
Original Bearings: 4 Adjuster Holes
11. Install pinion gear side adjuster lock and bolt. Do not tighten adjuster lock bolt at this time.
12. Tighten bearing cap bolts to 165 N·m (122 ft. lbs.).
13. Tighten adjuster lock bolts to 33 N·m (24 ft. lbs.).
3 - 272
REAR AXLE - 10 1/2 AA
DR/DH
14. Measure ring gear (2) backlash with a Dial Indica-
tor C-3339 (1) and Dial Indicator Stud L-4438 at
eight points around the drive side of the ring gear.
The
backlash
should
be
0.08-0.25
mm
(0.003-0.010 in) with a preferred backlash of 0.13-
0.18 mm (0.005-0.007 in).
NOTE: Backlash measurement should not vary more than 0.05 mm (0.002 in) between measuring points. If
measurement does vary inspect the gears for burrs, the differential case flange and ring gear mounting.
GEAR TOOTH CONTACT PATTERN
1. Wipe clean each tooth of the ring gear.
2. Apply gear marking compound to all of the ring
gear teeth.
3. Verify bearing cap bolts are torque to specification.
4. Apply parking brakes lightly to create at 14 N·m (10
ft. lbs.) pinion rotating torque.
5. Rotate the pinion/pinion yoke 4 full revolutions in
each directions.
6. Read gear tooth contact pattern.
Gear contact pattern correct. Backlash and pinion
depth is correct.
Ring gear too far away from pinion gear, coast side
toe (1) and drive side heel (2). Decrease the backlash,
by moving the ring closer to the pinion gear using the
adjusters.
DR/DH
REAR AXLE - 10 1/2 AA
3 - 273
Ring gear too close to pinion gear, drive side toe (1)
and coast side heel (2). Increase the backlash, by
moving the ring away from the pinion gear using the
adjusters.
Ring gear too far away from pinion gear, drive side
heel (1) and coast side heel (2). Decrease the back-
lash, by moving the ring closer to the pinion gear
using the adjusters.
Ring gear too close to pinion gear, drive side toe (1)
and coast side toe (2). Increase the backlash, by mov-
ing the ring away from the pinion gear using the
adjusters.
3 - 274
REAR AXLE - 10 1/2 AA
DR/DH
Pinion gear is set too low. Increase the pinion gear
height, by increasing the pinion depth shim thickness.
Pinion gear is set too high. Decrease the pinion depth,
by decreasing the pinion depth shim thickness.
SPECIFICATIONS
AXLE SPECIFICATIONS
DESCRIPTION
SPECIFICATION
Axle Ratio
3.73, 4.10, 4.56
Ring Gear Diameter
266 mm (10.5 in.)
Ring Gear Backlash
0.13-0.18 mm (0.005-0.007 in.)
Pinion Bearing Preload - New Bearings
1.69-2.82 N·m (15-25 in. lbs.)
Pinion Bearing Preload - Original Bearings
1-2 N·m (10-20 in. lbs.)
Pinion Bearing Preload + Diff Case Bearing Preload -
New Bearings
3.4-5.6 N·m (30-50 in. lbs.)
Pinion Bearing Preload + Diff Case Bearing Preload -
Original Bearings
2.8-5.1 N·m (25-45 in. lbs.)
DR/DH
REAR AXLE - 10 1/2 AA
3 - 275
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст