21 21 500 Removing and installing/replacing clutch (GS6-53BZ) S85 USA only: Notes

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Necessary preliminary tasks:

Remove transmission, see 23 00 018 REMOVING AND INSTALLING TRANSMISSION (GS6-53BZ) (S85) .
Block flywheel with special tool 11 9 260 COUNTER SUPPORT WITH SCREW CONNECTION .

Fig 1: Blocking Flywheel Using Special Tools

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Release screws and remove clutch from flywheel.

Tightening torque, see "1AZ" under 21 21 CLUTCH DISC AND DRIVE PLATE .

Installation note:

Clean flywheel and check for wear and damage.

Replace damaged flywheel.

Fig 2: Identifying Clutch To Flywheel Screws

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Observe the following procedure when installing the removed clutch and clutch discs:

Insert special tool 21 2 180 in clutch.

Press special tool 21 2 180 together at handles (1) as far as it will go and tighten down knurled screws (2).

Adjustment ring of clutch is now secured in its original position (wear position).

Fig 3: Identifying Special Tool (21 2 180)

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NOTE: Locking hooks (1) of special tool 21 2 180 must engage in openings of pressure spring.

Fig 4: Engaging Locking Hooks Of Special Tool (21 2 180) In Openings Of Pressure Spring

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Fit special tool 21 2 170 and tighten down at knurled screw (1).

Screw in spindle (2) to the uppermost pressure point of the diaphragm spring (3).

Fig 5: Fitting Special Tool (21 2 170) Onto Knurled Screw

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NOTE: Clutch disc (1) in clutch must be moveable.

Fig 6: Identifying Clutch Plate

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Center clutch disc (2) with special tool 21-2280 MANDREL on flywheel.

IMPORTANT: Install clutch disc in correct position. Note designation for "engine side" / "transmission side". Handle clutch disc with care. Do not touch surfaces of friction linings.

Fig 7: Identifying Clutch Disc And Special Tool 21 2 280

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Fit clutch (1) to flywheel.

Tightening torque, see "1AZ" under 21 21 CLUTCH DISC AND DRIVE PLATE .

NOTE: Clutch (1) must be secured by way of dowel pins (2).

Fig 8: Identifying Clutch And Dowel Pins

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Release spindle (1) until load is fully removed from diaphragm spring (2). Remove special tools 21 2 170 and 21 2 180.

Fig 9: Identifying Spindle And Diaphragm Spring

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Withdraw special tool from clutch disc with aid of accompanying screw (1).

Fig 10: Identifying Screw

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