differential LAMBORGHINI GALLARDO 2009 Owner's Manual

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Secure the air conditioner pipe clamp ( G-Fig.25).
 Connect the cooling pipes ( +)LJ) to the sleeves originating from the engine and secure the corresponding
clamps.
• Fill the engine coolant circuit  .
• Assemble the front differential  .
• Assemble the propeller shaft  .
• Disassemble the FDUÀRRUV  .

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4. Secure the 2 central pipes of the air conditioning system using the clamp ( D-Fig.30).
5. Tighten the two screws ( E-Fig.30) securing the central pipes of the water cooling system to the front section of
the chassis.
 Secure the support bracket to the chassis by tightening the screw ( F-Fig.31).
7. Secure the pipe ( G-Fig.31) to the T-union using the corresponding clamps.
• Fill the engine coolant circuit  .
• Assemble the front differential  .
• Assemble the propeller shaft  .
• Disassemble the front and center FDUÀRRUV  .
• Disassemble the luggage compartment  .

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Empty the air conditioning system (026007).
•  'LVDVVHPEOHWKHIURQWDQGFHQWUHÀDWÀRRUV (082503).
• Disassemble the propeller shaft (030703).
• Disassemble the front differential (040903).
• Disassemble the luggage compartment tray (080603).
'LVDVVHPEOLQJSLSH$ 1. Disconnect pipe A1 on the radiator and loosen the screw ( $)LJ).
2  8QIDVWHQWKHVSHFL¿FVFUHZ &)LJ WRORRVHQWKH¿[LQJFOLS %)LJ).
3 . Disconnect the union ( ')LJ  RQ SLSH$ VR WKH ¿UVW SDUW RI WKH SLSH FDQ EH UHPRYHG H[WUDFW IURP WKH IURQW
of the vehicle.

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*HDUER[WHFKQLFDOGDWD • Fast engagement 6 gear ratios + reverse gear
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• Meshing clearance (all gears) 0.11 ÷ 0.03 mm
• Lubrication with gear pump
• Net Weight: 80 Kg
• Oil quantity: 4 Lt
• Number teeth: 25
• Gearbox ratios:
67' &20)257
(Comfort Package)
1st gear 1 : 3,313 1 : 2,563
2nd gear 1 : 2,053 1 : 1,850
3rd gear 1 : 1,458 1 : 1,423
4th gear 1 : 1,138 1 : 1,138
5th gear 1 : 0,939 1 : 0,939
6th gear 1 : 0,784 1 : 0,806
Reverse 1 : 2,813 1 : 2,813
countershaft/front differential input shaft 1 : 1,409
countershaft/rear differential input shaft 1 : 1,240
• 0DQXDOW\SH with cable control
• (*HDU W\SH robotised with electronically managed electro-hydraulic control and 4 function modes: normal,
automatic, sport and low adherence.
Hydraulic circuit pressure: approx. 40 – 50 bar
Valve trigger pressure approx. 90 bar
System capacity (000300)

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General instructions
Prior to starting work on the dismantling or assembing of the Gearbox and Differential assy, bear in mind the following points: •When working on the gearbox assy observe high standards of cleanliness. All parts should be cleaned throughly
prior to assembly.
• The location where the work is to be carried out should be dust-free clean.
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incorrectly can cause serious damage, in the same way as metal chips or foreign bodies.
• During the differential assy overhaul, you are advised tu substitute the following with new parts: oil sealing rings,
gaskets, retaining rings and any parts damaged during dismantling.
• If breakage occurs inside the planetary gears side or differential, all lines, casing and should be cleaned thor-
oughl to prevent damage caused by residues left inside the system.
SHIMS
All adjustments shall be carried out after all adjustment shims have been selected measuring them one by one with a micrometer gauge and, then, summing up all values measured; do not trust incorrect measurement of pack as a
unit or sum of nominal value printed on each shim.
SEALS FOR REVOLVING SHAFTS
3URFHHGDVIROORZVIRUSURSHU¿WWLQJRIRLOVHDOV • prior assembly, seals should be soared, for at least half an hour, in a bath with the same oil to be sealed;
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to be sealed; in case of hydrodynamic lip lines should be oriented so as that, considering direction of revolving
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sealing lip and dust shield lip, if using double sealing lip type seals;
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mount seal;
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• to prevent damage of seal lip when inserting shaft, duly protect component during assembly.

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10.Cut three clamps ( -)LJ).
11. Loosen three screws ( .)LJ) on the left side and remove the joint bulkhead ( /)LJ) between the axle shaft
and the differential to release the gearbox.
12. Loosen the rear differential gearbox assembly support screw ( 0)LJ) and remove the bracket ( 1)LJ).
13. Loosen three screws ( 2)LJ) on the right side and remove the joint bulkhead ( 3)LJ) between the axle shaft
and the differential.
14. Loosen the rear differential gearbox assembly support screw ( 4)LJ) and remove the bracket ( 5)LJ).
 Disconnect the two gear selection cables ( S-Fig.7).
 Loosen three screws to remove the gear selection cable support bracket ( T-Fig.7).

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17.Loosen the six screws on both sides ( 8)LJ) securing the axle shaft to the rear differential.
 Disconnect the speed sensor cable connector ( 9)LJ).
 Disconnect the power steering circuit pipe ( :)LJ) from the corresponding pump.
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20.Loosen the four screws ( X-Fig.11) securing the engine to the chassis.
21. Loosen the nine screws ( Y-Fig.12) securing the gearbox housing to the engine.
22. Lift the engine slightly and remove the gearbox rear differential assembly ( Z-Fig.13) using a suitable lifting
device.

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'LVDVVHPEOLQJWKHSURSHOOHUVKDIW 3UHOLPLQDU\RSHUDWLRQV •Raise the vehicle on the car lift (000000).
• 'LVDVVHPEOHWKHUHDUDQGFHQWUHYHKLFOHÀRRUV (082503).
'LVDVVHPEOLQJWKHSURSHOOHUVKDIW 1. Loosen the 6 screws ( A-Fig.1) securing the propeller shaft to the front differential.
2. Loosen the 6 screws securing the propeller shaft to the PTO shaft ( B-Fig.2).
3. Loosen the 2 screws ( C-Fig.3) that secure the propeller shaft bracket to the chassis.
Important!
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4. Remove the propeller shaft.

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Assembling the propeller shaft
Important!
 3URFHHGZLWKWKHXWPRVWFDXWLRQZKHQDVVHPEOLQJWKHSURSHOOHUVKDIW 1. Fit the propeller shaft into place.
2. Tighten the 6 screws ( A-Fig.1) securing the propeller shaft to the front differential.
Screw attachment: tightening torque (000800-24c).
3. Tighten the 2 screws ( B-Fig.2) that secure the propeller shaft bracket to the chassis.
Screw attachment: tightening torque (000800-24d) .
4. Tighten the 6 screws securing the propeller shaft to the PTO shaft ( C-Fig.3).
Screw attachment: tightening torque (000800-23a) .
• $VVHPEOHWKHUHDUDQGFHQWUHYHKLFOHÀRRUV (082505).

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