2004 NISSAN TERRANO Service Repair Manual

YPD003
FRONT FINAL DRIVE (R180A)
PD-14
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Pre-inspection
Before disassembling final drive, perform the following inspection.
ITotal preload
I Remove the extension tube and the side flange. This measure-
ment must be performed with the extension tube and the differ-
ential flange removed.
1) Turn drive pinion in both directions several times to set bearing rollers.
2) Check total preload with Tool. Tool number:ST3127S000
Total preload: 1.3 - 2.2 N ×m (13 - 22 kg-cm, 11 - 19 in-lb)
I Ring gear to drive pinion backlash
Check backlash of ring gear with a dial indicator at several
points.
Ring gear-to-drive pinion backlash: 0.13 - 0.18 mm (0.0051 - 0.0071 in)
I Ring gear runout
Check runout of ring gear with a dial indicator.
Runout limit: 0.05 mm (0.0020 in)
I Tooth contact
Check tooth contact (Refer to Adjustment).
Final Drive Housing
1. Using three spacers [20 mm (0.79 in)], mount final drive assem-
bly on Tool.Tool number: KV38100800
SPD634
SPD635
SPD636
SPD637
DISASSEMBLY (R180A)
PD-15
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2. Remove extension tube and differential side shaft assembly.
3. Remove differential side flange.
4. Mark side retainers for identification. Remove side retainers.
Be careful not to confuse right and left side retainers and
shims.
5. Extract differential case from final drive housing.
6. Remove side outer races.Tool number:ST33290001
Be careful to keep the side bearing outer races together with
their respective inner cones Ð do not mix them up.
7. Remove side oil seal.
NPD005
SPD713
SPD639
SPD309
PD243
DISASSEMBLY (R180A)
Final Drive Housing (Cont'd)
PD-16
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8. Loosen drive pinion nut.Tool number:ST38060002
9. Remove companion flange with puller.
10. Take out drive pinion together with pinion rear bearing inner cone, drive pinion bearing spacer and pinion bearing adjusting
washer.
11. Remove front oil seal and pinion front bearing inner cone.
12. Remove pinion front and rear bearing outer races with brass drift.
13. Remove pinion rear bearing inner cone and drive pinion adjust- ing washer.Assembly: ST30905000
Tool number: ST30031000
SPD752
SPD640
SPD641
PD349
PD179
DISASSEMBLY (R180A)
Final Drive Housing (Cont'd)
PD-17
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Differential Case
1. Remove side bearing inner cones.
To prevent damage to bearing, engage puller jaws in grooves.Assembly:ST33065001
Tool number: q
AST33051001
q
BST33061000
Be careful not to confuse the right and left hand parts.
2. Loosen ring gear bolts in a criss-cross fashion.
3. Tap ring gear off differential case with a soft hammer.
Tap evenly all around to keep ring gear from binding.
4. Separate L.H. and R.H. differential cases.
Put match marks on both L.H. and R.H. differential cases.
SPD642
SPD022
SPD024
SPD643
DISASSEMBLY (R180A)
PD-18
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Extension Tube and Differential Side Shaft
1. Remove differential side shaft assembly from extension tube.
2. Cut rear axle bearing collar with cold chisel. Be careful not todamage differential side shaft.
3. Install differential side shaft into extension tube and secure with bolts. Remove extension tube retainer from differential side
shaft.
4. Remove grease seal.
SPD644
SPD645
SPD646
SPD647
DISASSEMBLY (R180A)
PD-19
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Ring Gear and Drive Pinion
Check gear teeth for scoring, cracking or chipping.
If any damaged part is evident, replace ring gear and drive pinion
as a set (hypoid gear set).
Differential Case Assembly
Check mating surfaces of differential case, side gears, pinion mate
gears, pinion mate shaft and thrust washers.
Bearing
1. Thoroughly clean bearing.
2. Check bearings for wear, scratches, pitting or flaking.Check tapered roller bearing for smooth rotation. If damaged,
replace outer race and inner cone as a set.
SPD648
SPD715
INSPECTION (R180A)
PD-20
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To avoid confusion while calculating bearing shims, it is absolutely
necessary to stay with the metric system. If you measure anything
in inches, the results MUST be converted to the metric system.
Drive Pinion Height
1. First prepare Tools for pinion height adjustment.
q
1Height gauge (ST31211000)
q
2Dummy shaft (ST31212000)
q
3Collar
q
4Feeler gauge
q
5Dummy shaft spacer (ST31851000)
q
6Stopper (ST31852000)
q
7Preload gauge (ST3127S000)
I Use a collar which has the specifications shown at left.
2. To simplify the job, make a chart, like the one below, to orga- nize your calculations.
LETTERS HUNDREDTHS OF
A MILLIMETER
H: Head number
D¢ : Figure marked on dummy shaft
S: Figure marked on height gauge
N: Measuring clearance
3. Write the following numbers down in the chart.
H: Head number
SPD633
SPD753
SPD542
ADJUSTMENT (R180A)
PD-21
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