SEAT Workshop Service and Repair Manuals

Adjusting 2nd and 4th gear brake -B2-

These adjusting instructions only apply to gearboxes in which a corrugated washer is installed on the last outer disc in brake -B2- → Item and → Item.

The code letter of this gearbox is: CYC

In these gearboxes, the play of brake -B2- is determined by the thickness of the last outer disc(s).

–	Install components for adjusting without corrugated washer → Item, without last outer disc → Item and without spring cap → Item.

1 -	Gearbox housing

2 -

Circlip

q	For supporting tube.

3 -	Supporting tube -B2-

q	Replacement parts are allocated according to gearbox code letters → Electronic parts catalogue “ETKA”.

q	Inserting so that notch locates on freewheel wedge.

4 -	Outer disc -B2-

q	3 mm thick.

5 -	Spring cap

q	Installing after installing first outer disc → Item.

6 -	Spring cap

q	Do not install when adjusting -B2-.

q	Installing before installing last outer disc.

7 -

Spring

q	Replacement parts are allocated according to gearbox code letters → Electronic parts catalogue “ETKA”.

8 -	Inner disc -B2-

q	Quantity → Chapter.

q	Replacement parts are allocated according to gearbox code letters → Electronic parts catalogue “ETKA”.

9 -	Outer disc -B2-

q	Always installing 2 mm thick outer discs.

q	Quantity → Chapter.

10 -	Outer disc -B2-

q	Do not install when adjusting -B2-.

q	2 outer discs can be installed.

11 -	Corrugated washer

q	Do not install when adjusting -B2-.

Determining last outer disc -A- thickness The thickness of the last outer disc(s) is determined by gap “x”. Comply with following formula

Gap x = a - b - 3.6 mm The illustration shows brake -B2- installed in the gearbox. Adjusting device -3459-, which exerts a force onto the disc pack, is not illustrated. Determining dimension b → Anchor. 3.6 mm - The amount for settling is taken into account by the force of the adjusting device -3459-. First outer disc -arrow- is always 3 mm thick. Calculating dimension a: Assemble planetary gearbox up to the last -B2- inner disc → Chapter. The last outer disc, the last 3 spring caps and the corrugated washer are not installed! –  Place -3459- onto last inner disc and turn so that the three clips align with the 3 holes for the ATF pump. –  Bolt -3459- to flange for ATF pump with 5 Nm. The disc pack for -B2- is now pressed together for the measurement.

–  Measure from pump flange/gearbox housing -arrow- to-3459- with depth gauge. Dimension a = Height of 3459 in mm - measured value Example:

Height of -3459-	=	60.0 mm
- Measured value	=	- 29.8 mm
Calculated value a	=	30.2 mm

–  Note calculated value a. –  Remove -3459-. Calculating dimension b: –  Push piston into ATF pump onto stop. –  Place new paper gasket onto ATF pump.

–  Place straight edge “B” onto stator support -arrows- and measure with depth gauge “A” to gasket of pump flange. Example:

Measured value	=	40.1 mm
- Straight edge	=	- 19.5 mm
Calculated value b	=	20.6 mm

–  Note calculated value b. Gap x = a - b - 3.6 mm Gap x = 30.2 - 20.6 - 3.6 mm = 6.0 mm –  Determine thickness of outer disc(s) according to table: Table of outer discs:

Gap “x” (mm)	Disc (mm)
4.25 … 4.49 4.50 … 4.74 4.75 … 4.99	2.75 3.00 3.25
5.00 … 5.24 5.25 … 5.49 5.50 … 5.74	3.50 3.75 2.00 + 2.00
5.75 … 5.99 6.00 … 6.24 6.25 … 6.49	2.00 + 2.25 2.25 + 2.25 2.25 + 2.50
6.50 … 6.74 6.75 … 7.00	2.50 + 2.50 2.50 + 2.75

–  Ascertain thickness of necessary outer disc(s) according to table and determine part no. from parts catalogue. In this example two outer discs must be installed (each 2.25 mm thick). –  Place three spring caps onto compression springs. –  Install correct last outer disc(s). –  Insert corrugated washer. –  For further assembly instructions, see → Anchor.