Nissan Frontier. Manual - part 323

 

  Index      Nissan     Nissan Frontier (2014 year) - Service and Repair Manual

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  321  322  323  324   ..

 

 

Nissan Frontier. Manual - part 323

 

 

DLN-194

< UNIT DISASSEMBLY AND ASSEMBLY >

[FRONT FINAL DRIVE: R180A]

FRONT FINAL DRIVE

ASSEMBLY INSPECTION AND ADJUSTMENT

• Drain the differential gear oil before inspection and adjustment. Refer to 

DLN-186

.

• Remove and install the carrier cover as necessary for inspection and adjustment. Refer to 

DLN-190

.

Total Preload Torque

1. Install the differential side shaft if necessary. Refer to 

DLN-189, "Removal and Installation"

.

CAUTION:

The differential side shaft must be installed in order to measure total preload torque. 

2. Rotate the drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
3. Rotate the drive pinion at least 20 times to check for smooth operation of the bearings.
4. Measure total preload torque using Tool.

NOTE:

Total preload torque = Drive pinion bearing preload torque +

Side bearing preload torque

• If the measured value is out of the specification, check and adjust each part. Adjust the drive pinion

bearing preload torque first, then adjust the side bearing preload torque.

CAUTION:

Select a side bearing adjusting washer for right and left individually.

Drive Gear Runout

1. Fit a dial indicator to the drive gear back face.
2. Rotate the drive gear to measure runout.

• If the runout is outside of the limit, check the condition of the drive

gear assembly. Foreign material may be caught between the drive

gear and differential case, or the differential case or drive gear may

be deformed.

CAUTION:

Replace drive gear and drive pinion as a set.

28. Housing spacer

29. Side bearing cap

30. Filler plug

31. Carrier cover

A.

Seal lip

B.

Screw holes

C.

Refer to "INSTALLATION"

Tool number

: ST3127S000 (J-25765-A)

Total preload torque:

Refer to 

DLN-193, "Disassembly and Assembly"

PDIA0697E

If the total preload torque is greater than specification

On drive pinion bearings: Replace the collapsible spacer.
On side bearings:

Use thinner side bearing adjusting washers by the same 
amount on each side. Refer to 

DLN-212, "Inspection and Adjust-

ment"

.

If the total preload torque is less than specification

On drive pinion bearings: Tighten the drive pinion lock nut.
On side bearings:

Use thicker side bearing adjusting washers by the same 
amount on each side. Refer to 

DLN-212, "Inspection and Adjust-

ment"

.

Runout limit:

Refer to 

DLN-212, "Inspection and 

Adjustment"

SPD886

FRONT FINAL DRIVE

DLN-195

< UNIT DISASSEMBLY AND ASSEMBLY >

[FRONT FINAL DRIVE: R180A]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

Tooth Contact

1. Apply red lead to the drive gear.

NOTE:

Apply red lead to both faces of three to four gears, at four loca-

tions evenly spaced on the drive gear.

2. Rotate the drive gear back and forth several times. Then check

for correct drive pinion to drive gear tooth contact as shown.

CAUTION:

Check tooth contact on drive side and reverse side.

• If the tooth contact is improperly adjusted, adjust the drive pin-

ion height (dimension X).

- If the tooth contact is near the face (face contact), or near the

heel (heel contact), use a thicker drive pinion height adjusting

washer to move drive pinion closer to the drive gear.

Refer to 

DLN-212, "Inspection and Adjustment"

.

SPD357

SDIA0570E

SDIA0517E

PDIA0440E

DLN-196

< UNIT DISASSEMBLY AND ASSEMBLY >

[FRONT FINAL DRIVE: R180A]

FRONT FINAL DRIVE

- If the tooth contact is near the flank (flank contact), or near the

toe (toe contact), use a thinner drive pinion height adjusting

washer to move the drive pinion farther from the drive gear.

Refer to 

DLN-212, "Inspection and Adjustment"

.

Backlash

1. Fit a dial indicator to the drive gear face to measure the back-

lash.

• If the backlash is outside of the specification, change the thick-

ness of the side bearing adjusting washers.

CAUTION:

Do not change the total thickness of side bearing adjusting washers as it will change the side

bearing preload torque.

Companion Flange Runout

1. Rotate companion flange and check for runout on the compan-

ion flange face (inner side of the bolt holes) and companion

flange inner side (socket diameter) using suitable tool.

2. If the runout is outside the runout limit, follow the procedure

below to adjust.

a. Rotate the companion flange on the drive pinion by 90

°, 180°

and 270

° while checking for the position where the runout is

minimum.

b. If the runout is still outside of the runout limit after the companion flange has been rotated on the drive pin-

ion, possible cause could be an assembly malfunction of drive pinion and drive pinion bearing or a mal-

functioning drive pinion bearing.

c.

If the runout is still outside of the runout limit after repair of the assembly of drive pinion and drive pinion

bearing or drive pinion bearing, replace the companion flange.

DISASSEMBLY

Differential side shaft

1. Drain the differential gear oil if necessary.

PDIA0441E

Backlash:

Refer to 

DLN-212, "Inspection and 

Adjustment"

If the backlash is greater than specification:

Make side bearing adjusting washer thicker on drive 
gear back side, and side bearing adjusting washer 
thinner on drive gear tooth side by the same amount. 
Refer to 

DLN-212, "Inspection and Adjustment"

.

If the backlash is less than specification:

Make side bearing adjusting washer thinner on drive 
gear back side, and side bearing adjusting washer 
thicker on drive gear tooth side by the same amount. 
Refer to 

DLN-212, "Inspection and Adjustment"

.

SPD513

Runout limit:

Refer to 

DLN-212, "Inspection and 

Adjustment"

SDIA2078E

FRONT FINAL DRIVE

DLN-197

< UNIT DISASSEMBLY AND ASSEMBLY >

[FRONT FINAL DRIVE: R180A]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

2. Remove the carrier cover bolts and separate the carrier cover

from the gear carrier using Tool.

CAUTION:

• Do not damage the mating surface.

• Do not insert flat-bladed screwdriver, this will damage the

mating surface.

3. Remove side oil seal.

CAUTION:

Do not damage gear carrier.

4. Remove snap ring (hole side) using suitable tool.

5. Remove differential side shaft assembly out of gear carrier using

suitable tool.

NOTE:

Tap on differential side shaft assembly from side gear side.

6. Remove snap ring (differential side shaft side).

7. Press differential side shaft out of differential side shaft bearing.

CAUTION:

Do not drop differential side shaft.

Tool number

: KV10111100 (J-37228)

PDIA0699E

PDIA0713E

PDIA0714E

PDIA0715E

PDIA0718E

 

 

 

 

 

 

 

Content   ..  321  322  323  324   ..