Daewoo Korando. Instruction - page 218
FRONT DRIVE AXLE 3A-19
5. Unscrew the bearing cap bolts and remove the bearing caps.
Pull out the differential carrier assembly.
Notice
Place alignment marks on the bearing cap not to change
the caps before removal. When pulling out the differential
carrier assembly, be careful not to damage the axle housing.
6. Disassemble the parts of the differential carrier assembly.
7. Remove the drive pinion lock nut. Disassemble the parts of
the drive pinion.
Assembly Procedure
1. Clean the all parts and check the followings :
l
Check the ring gear and drive pinion for wear and
damage. If damaged, replace it as a set.
l
Check the bearing for sticks, wear, noise and turning
resistance.
l
Check the side gear, pinion, pinion shaft and thrust
washer for wear and damage.
l
Check the differential carrier for crack and wear (bearing
contact surface). Check the gear case for crack.
3A-20 FRONT DRIVE AXLE
2. Assemble the parts of the drive pinion.
3. Assemble the parts of the differential carrier.
4. Measure backlash of the side gear and pinion.
5. Install the differential carrier assembly into the axle housing.
Notice
Be careful not to change the caps. Be sure to keep the
original position of the caps.
Tightening Torque of the
Lock Nut
240 - 310 Nm
Tightening Torque of the
Ring Gear Bolts
75 - 90 Nm
Standard
0 - 0.05 mm
Tightening Torque of the
Bearing Cap Bolts
48 - 69 Nm
FRONT DRIVE AXLE 3A-21
6. Measure backlash of the drive pinion and ring gear.
7. Install the axle housing cover.
8. Assemble the parts of the front axle shaft and housing
mounting bracket.
Notice
Apply grease to the oil seal rib.
9. Align the axle shaft and differential carrier spline and insert
the axle shaft. Assemble the axle housing mounting bracket
to the axle housing.
Specified Value
0.13 - 0.20 mm
Tightening Torque
39 - 46 Nm
Tightening Torque
55 - 65 Nm
3A-22 FRONT DRIVE AXLE
Inspection of Ring Gear Tooth Contact Pattern
Normal Contact
Apply gear-marking compound (prussian blue / red lead) on
the ring gear teeth. Rotate the ring gear and check the tooth
contact pattern.
Abnormal Contact
Tooth Contact pattern
Possible Cause
Remedy
1. Heel Contact
2. Toe Contact
3. Face Contact
4. Flank Contact
Insufficient backlash (little)
l
Tooth can be damaged
or broken under heavy
load
Excessive backlash (much)
l
Drive pinion shaft is apart
from the ring gear
l
Noise can be occurred
Insufficient backlash (much)
l
Gear contacts on the low
flank
l
Gear can be damaged or
worn
l
Noise can be occurred
Adjust backlash(Decrease backlash)
l
Select proper shim(s) to move the
drive pinion toward the ring gear
(toward toe)
Adjust backlash(Increase backlash)
l
Select proper shim(s) to move the
drive pinion against the ring gear
(toward heel)
Adjust backlash(Increase pinion shim)
l
Move the drive pinion toward the ring
gear (toward center of ring gear)
Adjust backlash(Decrease pinion shim)
l
Move the ring gear toward the drive
pinion (toward ring gear center line)
Excessive backlash (little)
l
Noise can be occurred
