2009 LAMBORGHINI MURCIÉLAGO Service Repair Manual

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Camber
This is the wheel’s camber with respect to a plane perpendicular to the ground (Fig.2). The camber can be positive
(the front view of the vehicle shows the wheels opened upwards) or negative (the wheels are opened downwards).
The camber affects roadholding and driving comfort. The adjustment values were designed to obtain the best
compromise between roadholding and comfort.
Caster
This is the angle that forms the steering axis of the wheel projected on the longitudinal vertical plane with respect to the transversal vertical plane passing through the wheel axle ( Fig.3). When this angle is positive, the steering axis
meets the ground in front of the vertical axis, thus creating momentum that tends to realign the wheels.

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Toe-in
This is the angle formed between the equatorial planes of the wheels of an axle and the vertical-longitudinal plane
passing through the middle of the vehicle (Fig.4). The angle is positive when the directions of the two wheels
converge at a point in front of the vehicle. It is negative when this point is behind the vehicle. To improve vehicle
stability, wheel toe-in must be kept positive.

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)URQWD[OHVKDIWDQGIURQWGLIIHUHQWLDOGLVDVVHPEO\ 3UHOLPLQDU\RSHUDWLRQV •Lift the vehicle on the car lift (000000).
• Disassemble the wheel (060103).
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1. Disassemble the center screw ( A-Fig.1) in the center of the disk.
2. Disassemble the differential support plate ( B-Fig.2) by unscrewing the four mounting screws.
3. Free both front axle shafts from the differential ( C-Fig.2) by unscrewing the 12 mounting screws (5 socket head
screws for each differential-axle shaft coupling).
4. Remove the temperature sensor wire ( D-Fig.2) from the differential.
5. Using a socket wrench, unscrew the two screws ( E-Fig.2) that secure the front differential support.
6. Remove the front differential.
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 ,QWKLVFDVHSRVLWLRQWKHVSLGHUOLIWXQGHUWKHIURQWGLIIHUHQWLDOEHIRUHXQVFUHZLQJWKHWZRVXSSRUW screws (E-Fig.2).
7. Remove the axle shaft.

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)URQWD[OHVKDIWDVVHPEO\DQGIURQWGLIIHUHQWLDO 1. Position the axle shaft for the subsequent assembly operations.
2. Using a socket wrench, tighten the two screws ( A-Fig.1) of the front differential support; tightening torque
(000800-26c)
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3. Attach the temperature sensor wire ( B-Fig.1) to the differential.
4. Secure both front axle shafts to the differential ( C-Fig.1) by tightening the 12 mounting screws (6 socket head
screws for each differential-axle shaft coupling); tightening torque (000800-1a)
5. Assemble the differential support plate ( D-Fig.1), tightening the four mounting screws.
6. Tighten the screw ( E-Fig.2) in the center of the disk; tightening torque (000800-12b)
• Assemble the wheel (060105).

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Viscous coupling disassembly 3UHOLPLQDU\RSHUDWLRQV •Lift the vehicle on the car lift (000000).
• Disassemble the front differential (040903).
Viscous coupling disassembly
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Viscous coupling assembly
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