Nissan Juke F15. Manual - part 1295

TM-370

< SYSTEM DESCRIPTION >

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COMPONENT PARTS

SHIFT LOCK SYSTEM : Component Parts Location

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SHIFT LOCK SYSTEM : Component Description

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1.

Shift lock release button cover*

2.

Shift lock solenoid

3.

Park position switch

4.

Stop lamp switch

A:

CVT shift selector assembly

B:

Brake pedal, upper

*: Shift lock release button becomes operative by removing shift lock cover.

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Component

Function

Shift lock solenoid

It operates according to the signal from the stop lamp switch and moves the lock lever.

Lock lever

• Rotates according to shift lock solenoid activation and releases the shift lock.
• If shift lock solenoid does not activate, lock lever can be rotated when shift lock release but-

ton is pressed and shift lock is released.

Detent rod

It links with the selector button and restricts the selector lever movement.

Park position switch

It detects that the selector lever is in “P” position.

Shift lock release button

Forcibly releases the shift lock when pressed.

Stop lamp switch

• The stop lamp switch turns ON when the brake pedal is depressed.
• When the stop lamp switch turns ON, the shift lock solenoid is energized.

STRUCTURE AND OPERATION

TM-371

< SYSTEM DESCRIPTION >

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STRUCTURE AND OPERATION

TRANSAXLE
TRANSAXLE : Cross-Sectional View

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1.

Converter housing 

2.

Oil pump

3.

Planetary gear

4.

Control valve

5.

Oil pan

6.

Steel belt 

7.

Primary pulley

8.

Secondary pulley

9.

Side cover

10. Transaxle case

11. Differential case

12. Final gear

13. Reduction gear

14. Idler gear

15. Output gear

16. Drive sprocket 

17. Torque converter

18. Driven sprocket

19. Oil pump chain 
A.

2WD models

B.

4WD models

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TM-372

< SYSTEM DESCRIPTION >

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STRUCTURE AND OPERATION

TRANSAXLE : Operation Status

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×: Engaged or applied.

TRANSAXLE : Transaxle Mechanism

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TORQUE CONVERTER (WITH LOCK-UP FUNCTION)

In the same way as a conventional A/T, the torque converter is a system that increases the engine torque and

transmits the torque to the transaxle. A symmetrical 3-element, 1-stage, 2-phase type is used here.

OIL PUMP

Utilizes a vane-type oil pump that is driven by the engine through the oil pump drive chain in order to increase

efficiency of pump discharge volume in low-speed zone and optimize pump discharge volume in high-speed

zone. Discharged oil from oil pump is transmitted to control valve. It is used as the oil of primary and second-

ary pulley operation, the oil of clutch operation, and the lubricant for each part.

PLANETARY GEAR

• A planetary gear type of forward/reverse selector mechanism is installed between the torque converter and

primary pulley.

• The power from the torque converter is input via the input shaft, operating a wet multi-plate clutch by means

of hydraulic pressure to switch between forward and reverse driving.

Operation of Planetary gear

BELT & PULLEY

It is composed of a pair of pulleys (the groove width is changed freely in the axial direction) and the steel belt

(the steel plates are placed continuously and the belt is guided with the multilayer steel rings on both sides).

Selector lever 

position

Parking mech-

anism

Forward 

clutch

Reverse brake  Primary pulley 

Secondary 

pulley

Steel belt

Final drive

P

×

R

×

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×

×

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STRUCTURE AND OPERATION

TM-373

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The groove width changes according to wrapping radius of steel belt and pulley from low status to overdrive

status continuously with non-step. It is controlled with the oil pressures of primary pulley and secondary pulley.

Steel Belt

It is composed of multiple steel plates (A) and two steel rings (B)

stacked to a several number. The feature of this steel belt transmits

power with compression of the steel plate in contrast with transmis-

sion of power in pulling with a rubber belt. Friction force is required

with the pulley slope to transmit power from the steel plate. The force

is generated with the following mechanism:

Oil pressure applies to the secondary pulley to nip the plate. 

⇒The

plate is pushed and extended outward. 

⇒The steel ring shows with-

stands. 

⇒Pulling force is generated on the steel ring. ⇒The plate of

the primary pulley is nipped between the pulley. 

⇒Friction force is

generated between the steel belt and the pulley. 

Therefore, responsibilities are divided by the steel plate that trans-

mits the power with compression and the steel ring that maintains necessary friction force.   In this way, the

tension of the steel ring is distributed on the entire surface and stress variation is limited, resulting in good

durability. 

Pulley

The primary pulley (input shaft side) and the secondary pulley (output shaft side) have the shaft with slope

(fixed cone surface), movable sheave (movable cone surface that can move in the axial direction) and oil pres-

sure chamber at the back of the movable sheave. 

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