V2-3-6 Final Gear and Differential Gear

8/11/2019 V2-3-6 Final Gear and Differential Gear

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Intermediate Technicians Course

FINAL GEAR &

DIFFERENTIAL GEAR


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3-6 FINAL GEAR &

DIFFERENTIAL GEAR

FINAL GEAR TYPES

DRIVE PIGNON

CYLINDRICAL ROLLER BEARING

RETAINER RING DIFFRENTIAL CARRIER CASE

RING GEAR

DIFFRENTIAL CASE

BEARING CAP

THRUST WASHER

DIFFERANTIAL PIGNON

DIFFERANTIAL

SIDE GEAR

THRUST WASHER

SPIDER

DIFFRENTIAL CASE

TAPER ROLLER BEARING

ADJUSTING NUT

SHIMBEARING CAGE


OIL SEAL

FLANGE YOKE


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DIFFERENTIAL GEAR

SPIRAL BEVEL GEAR HYPOID GEAR


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DIFFERENTIAL GEAR

RING GEARDIFFERENTIAL PINION & SHAFT

DIFFERENTIAL CASE

SIDE GEAR & AXLE SHAFT


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DIFFERENTIAL GEAR OPERATION

WHEN MOVING STRAIGHT AHEAD

SPIDER


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DIFFERENTIAL GEAR OPERATION

WHEN TURN &

SPIDER


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INTERAXLE DIFFERENTIAL

INPUT SHAFT

SHIM

SHIFTER SLEEVE

DRIVE GEAR

HYPOID PIGNON

PIGNON DRIVE GEAR

SPIDER

SHIM

DIFFERENTIAL CARRER

CYLINDRICAL

ROLLER BEARING

AXLE HOUSING

THROUGH SHAFT

SHIM

ADJUST NUT

INTER AXLE DIFFERENTIAL PIGNON

INTER AXLE DIFFERENTIAL GEAR


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REAR/REAR AXLEREAR/FRONT AXLE

SLEEVEDRIVE GEAR INTER AXLE DIFF

THROUGH SHAFT

INPUT


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INTER AXLE DIFF SWITCH

FUSE BOX

COMPRESSED AIR FROM TANK

PISTON

SHIFT FORK

AIR

EXHAUST

INDICATOR LAMP

ON

(PUSH)

DIFFERENTIAL LOCK SWITCH OPERATION


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2)SERVICE POINTS: Final gear set

(1)THE DRIVE PINION AND RING GEAR ARE REPLACED

AS A SET. ( SET NO. IS RECORDED)

FINAL GEAR SET

SET NO.

SET NO.

PARTS NO.

PIGNON HEIGHT

ADJUSTING VALUE


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(2)THE CONICAL DISTANCE FOR ADJUSTING

THE DRIVE PINION END FOR OPTIMUM TOOTH

CONTACT DURING ASSEMBLY IS RECORDED.

(REFER TO THE WORK SHOP MANUAL.)

CONICAL DISTANCE

ADJUSTING SHIM

CONICAL DISTANCE

PIGNON DEPTH GAUGE


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(3)ASSEMBLY MATCH MARKS ARE PROVIDED ON

THE SIDE BEARING CAP AND THE DIFFERENTIAL

GEAR CASE.

SIDE BEARING CAP MATCH MARKS


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The drive pinion bearing preload measurement by

small torque wrench.

If the pre-load is not of specific value, adjust byshim or spacer.


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The ring gear backlash and total pre-load by

turning the adjusting nuts of both side.


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ADJUSTMENT OF PINION HIGHT (CONOCAL DISTANCE)

EXAMPLE:

33mm 0.2 mm = 32.8mm

STANDARD

PINIONHIGHT

" A "

THE

ENGRAVED

VALUE

" a "

MEASURING

PART

" A "


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TOOTH CONTACT AND ADJUSTING METHOD

SATISFACTORY(NEW) SATISFACTORY(AFTER BREAKING INPERIOD)


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TOE

CONTACT

FLANK

CONTACT

HEEL

CONTACT

FACE

CONTACT


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DRIVE PIGNON

CYLINDRICAL ROLLER BEARING

RETAINER RING DIFFRENTIAL CARRIER CASE

RING GEAR

DIFFRENTIAL CASE

BEARING CAP

THRUST WASHER

DIFFERANTIAL PIGNON

DIFFERANTIAL

SIDE GEAR

THRUST WASHER

SPIDER

DIFFRENTIAL CASE


ADJUSTING NUT

SHIMBEARING CAGE


OIL SEAL

FLANGE YOKE

(6)ON VEHICLES THAT OFTEN TRAVEL ON MOUNTAIN

ROADS OR MUDDY ROADS, THE DIFFERENTIAL

CASE AND PINION ARE SUSCEPTIBLE TO WEAR,

SO THEY MUST BE CHECKED.


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(1) Why can the left and right side bearing caps not be

replaced?

Since they are integrated with gear case, the threads

will not match when they are replaced.


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(3) Why is bearing preload provided?

To extend bearing life.


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(4) Why is the drive pinion height adjusted?

To optimize tooth contact.


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(5) Why are the drive pinion and ring gear replaced

as a set?

For integrated lapping.


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(6) What will happen if the drive pinion and ring gear

tooth contact is insufficient?

Noise, groaning, tooth loss, pitching.


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(8) What trouble will occur if the differential lock switch

is OFF while the vehicle is traveling on muddy road?

Slipping; Can not escape slippy condition; interaxle

differential seizing.


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(9) What might cause the drive pinion to pitch?

Overloading, faulty adjustment, faulty oil, faulty

machining, faulty hardening.


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(10) What will be happen if API standard GL-4oil is used

for the hypoid gear?

Tooth face pitching will be promoted.


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Intermediate Technicians Course

NO SPIN

DIFFERENTIAL


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NO SPIN DIFFERENTIALS

FUNCTION of NO SPIN DIFFERENTIAL


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L R


Wheel at L side loses traction but

dose not spin.

Therefore wheel at R side keeps

traction and the vehicle will be

moved.


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Spider & center cam

Hold-out ring spring

Driven clutch

OUTLINE & STRUCTURE of NO SPIN DIFFERENTIAL


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Wheel at L side loses traction but dose not spin.

L R

Therefore wheel at R side keeps traction

and the vehicle will be moved.


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NO SPIN DIFFELENTIAL OPERATION


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NO SPIN DIFFELENTIAL OPERATION

1 STRAIGHT FORWARD DRIVING

2 31

Spider Center cam

Driven clutchBacklush

of the

clutch teeth


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2 STRAIGHT FORWERD BREAKING

B

2 13


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A

C

B

Driven clutch

Center camSpider

3 TURNNING FORWARD(2)

The out side driven clutch C) start to be rotated

faster than spider A) and clutch teeth slide on

the center cam teeth B) to disengage.


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2 TURNNING FORWARD (3)

A C

E

F

Center cam groove Hold out ring

The outside driven clutch(C) is disengaged with the Spider(A)

and hold out ring(E) is out of the Center cam groove(F) to holdengagement.


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3 TURNNING FORWARD (4)

At end of turning, the outside driven clutch(A) decrease the rotating speed

than the hold out ring projection(E). Aligned with center cam groove(F).

EF

C

Center cam groove Hold out ring projection


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3 TURNNING FORWARD(5)

B

C

G Spring

Center cam teeth

Outside driven clutch

The outside driven clutch(C) are moved to original engagement

along the center cam teeth(B) by the spring(C)


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V2-3-6 Final Gear and Differential Gear

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