Hyundai Sonata LF: DCT (Dual Clutch Transmission) System / Dual Clutch System

Hyundai Sonata LF 2014-2019 Service Manual / DCT (Dual Clutch Transmission) System / Dual Clutch System

Description and Operation

Description

•	Components location : DCT (Dual Clutch Transmission)

•

Function

The dual clutch is installed within the transmission.

The dual clutch comprises an odd clutch and an even clutch. The odd clutch transfers and cuts off engine power to the transmission when shifting odd gears.

The even clutch transfers and cuts off engine power to the transmission when shifting even gears.

Dual Clutch Assembly Components and Components Location

Components

1. Retaining ring
2. Spline hub

3. Snap ring
4. Dual clutch assembly

Dual Clutch Assembly Repair procedures

Removal

1.	Remove the dual clutch transmission from the vehicle. (Refer to Dual Clutch System - "Repair procedures")

2.	Remove the retaining (A) and then removing the spline hub (B).

3.	Remove the snap ring (A).

4.	Remove the dual clutch assembly (A) by using the special service tool [SST No.: 09430-C1180].

Installation

•	Check the applied state of grease on input shaft spline part (A) before installing the dual clutch assembly. If there is no grease on input shaft spline part, should apply the grease on each spline end to 10mm.

•	If excessively applied grease, grease can be scattered by centrifugal force which can contaminate the clutch disc. This can cause a loss of friction force

Specified grease: Extreme pressure grease for vehicle

Quantity: 0.15 ~0.25 g

1.	Install the SST (No.:09430-2A240) on the support bearing within the dual clutch assembly (A).

2.	Install the SST (No. : 09430-2A240) on the clutch housing side.

3.	Install the dual clutch assembly (A) using the SST (No. : 09430-2A240).

4.	Install the snap ring (A).

5.	Install the spline hub (B) and the install the snap ring (A).

6.	Perform the work procedures for abrasion compensation reset after installing the new dual clutch assembly. (Refer to Clutch Actuator Assembly - "Adjustment")

7.	Perform the clutch touch point learning procedure using the GDS after replacing the dual clutch assembly.

Clutch Engagement Fork and Engagement Bearing Components and Components Location

Components

1. Clutch housing
2. Engagement bearing 2 (Even)
3. Egnagement bearing 1 (Odd)

4. Engagement bearing sleeve
5. Clutch engagement fork

Clutch Engagement Fork and Engagement Bearing Repair procedures

Removal

1.	Remove the dual clutch transmission from the vehicle. (Refer to DCT System - "DCT)

2.	Remove the dual clutch assembly. (Refer to Dual Clutch System - "Dual Clutch Assembly")

3.	Remove the clutch engagement bearing 1 (A) and 2 (B).

4.	Remove the clutch engagement fork (A) and engagement bearing sleeve (B).

Installation

•

Apply coat of grease when installing the clutch fork.

Spec grease: CASMOLY 9508

Amount: 0.2g

Install the clutch engagement fork (A) and engagement bearing sleeve (B).

Tightening torque :

9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

•	Check dowel pins (A-2ea) when installing the fork assembly. Replace the dowel pin with new part if it is damaged or deformed.

•	Take caution of the direction of fork assembly shaft when installing.

Install the engagement bearing 1 (A).

•	Align the fork with the bearing plastic guide direction.

Install the engagement bearing 2 (A).

•	Take caution and make sure that the bearing plastic stopper (B) is settled in the sleeve (C).

•	Apply coat of spec grease on the 1st input shaft spline (A) after installing the bearing.

•

Apply proper amount of transmission oil on the 2nd input shaft spline (B).

(Be careful not to get oil on the spline when applying coat of oil.)

Spec grease: CASMOLY 9508

Amount: 0.15 ~ 0.25g

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