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1. ARION 650-510
Repair manual
Original repair manual
1/1Couverture RHB ARION 650-510 HEXASHIFT (A74-A76))
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2. Validity of this repair manual
This repair manual applies to the following tractors:
Description Type
Tractor serial number
From to
ARION 600 A76 A7600050 —
ARION 500 A74 A7400050 —
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3. Engine flywheel housing
Technical specifications
Number Value Note – Description
1 70 kg Weight of the engine flywheel housing
2 —
Camshaft O-ring
Replace the O-ring each time it is removed.
Apply clean engine oil to the O-ring.
3 —
Flat seal
The surfaces that will come into contact with the seal must be clean
and dry before fitting.
4
530 N.m
M20 – 70 bolt
Lubricate the bolt
threads and observe
the tightening order as
illustrated
5 M20 – 100 bolt
6 110 N.m M12 – 38 bolt
7
130 N.m
M16 – 60 bolt
+ 45°
8 230 N.m M16 – 70 bolt
9 73 N.m M10 – 185 bolt
For unspecified tightening torques, refer to the section entitled: "Tightening torques".
WARNING
Lifting heavy components.
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4. Risk of death or serious injury.
► Use certified slings or chains in perfect working order.
► Use a certified hoist in perfect working order.
► Use a certified jack or stand which can support the load.
► Use the jack or stand on a flat, horizontal, sufficiently firm surface.
► Place the jack or stand in a suitable location.
WARNING
Lifting heavy components.
Risk of death or serious injury.
– Use lifting equipment that will support the load.
– Use reliable lifting equipment.
– Placer the lifting equipment on the appropriate locations.
Removal
► Remove the electric starting motor. The electric starting motor and the engine flywheel housing can be
removed as one unit.
► Remove the bolts securing the engine flywheel housing to the cylinder block and the bolts securing the
engine flywheel housing to the oil sump.
► Remove the engine flywheel housing from the block.
The engine flywheel housing weighs 70 kg.
Fitting
► Inspect and clean the mating surfaces of the cylinder block and the engine flywheel housing. Remove any
product or sealing material previously applied.
Do not apply sealing product to the gasket or to the mating surfaces on these housings.
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5. ► Fit a new camshaft O-ring (1).
► Fit the seal (2).
Respect the technical specifications from the overview.
► Fit the engine flywheel housing on the cylinder block and tighten the mounting bolts to the recommended
torque respecting the tightening order.
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6. Sump
Technical specifications
Number Value Note – Description
1 60 kg Sump of a 6-cylinder engine.
2 57 kg Sump of a 4-cylinder engine.
3 —
Sump seal.
The surfaces that will come into contact with the seal must be clean
and dry before fitting.
Before fitting the new seal, apply Loctite (515) to the connections
between the cylinder block and the engine flywheel housing, the front
panel and the timing cover.
4
73 ± 7 N·m
M10 – 35 bolt
5 M10 bolt
6 35 ± 3 N.m M8 – 35 bolt
7 230 ± 40 N.m M16 – 70 bolt
8 622 ± 100 N.m M22 x 2.50 – 80 CL 10.9 double-hex bolt
9 45 ± 5 N.m Drain connectors
For unspecified tightening torques, refer to the section entitled: "Tightening torques".
WARNING
Lifting heavy components.
Risk of death or serious injury.
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7. ► Use certified slings or chains in perfect working order.
► Use a certified hoist in perfect working order.
► Use a certified jack or stand which can support the load.
► Use the jack or stand on a flat, horizontal, sufficiently firm surface.
► Place the jack or stand in a suitable location.
WARNING
Lifting heavy components.
Risk of death or serious injury.
– Use lifting equipment that will support the load.
– Use reliable lifting equipment.
– Placer the lifting equipment on the appropriate locations.
Preparation for work
Consumables to be used:
- Sealing and glue product:
Loctite (515) - 60 0571 950 5.
Special tool
Special tool – Reference no.
Carriage to be uncoupled
No. 00 1148 105 0
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8. Special tool – Reference no.
Extension
No. 00 1148 106 0
Special tool – Reference no.
Set of two adjustable chains
No. 00 1146 172 0
Removal
► Before carrying out any removal operations, if the tractor is equipped with a suspended front axle, position
the front axle in the top position in manual mode. (7 Use → 7.3 Chassis).
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9. ► Fit 10-cm-high wooden chocks between the end stops on the suspended front axle and the front chassis.
These operations make it easy to position the uncoupling trolleys afterwards.
► Disconnect the battery.
► Drain the engine oil.
► Drain the coolant circuit.
► Drain the air conditioning circuit.
► Drain the transmission.
► Decompress the front axle suspension circuit (if fitted).
Decompressing the front axle suspension circuit
► Drain the pneumatic braking circuit.
► If equipped with a front linkage, remove the engine bonnet.
Engine bonnet
► If equipped with side members, remove the main tank.
Main tankFunction:01 Engine
► Remove the supports from the loader frame, if fitted.
► Remove the side members (1) either side of the engine.
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10. If equipped with a front linkage:
► Undo and remove the bolts (1) and (2).
► Remove the closure panels (3).
► Loosen the clamps (1) and (2) and disconnect the hoses.
► Disconnect the unions (1).
► Disconnect the air conditioning ducts (2).
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11. ► Loosen the clamps (1) and disconnect the hoses.
► Disconnect the unions (2).
► Loosen the clamps (1) and disconnect the hoses.
► Loosen the clamps (1) and disconnect the hoses.
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12. If equipped with a front linkage:
► Using a suitable lifting tool, hold the cooler assembly at the lifting points (1).
If equipped with a front linkage:
► Undo and remove the bolts (1).
► Remove the cooler assembly (1).
The cooler assembly weighs 95 kg.
If equipped with a front linkage:
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13. ► Disconnect the connectors (1).
► Detach and remove the wiring harness (2) up to the front of the cab.
On the right-hand side of the tractor (depending on the equipment):
► Disconnect the unions (1).
► Undo and remove the bolts (2).
On the left-hand side of the tractor (depending on the equipment):
► Disconnect the unions (1).
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14. Under the cab:
If equipped with a suspended front axle:
► Disconnect the connector (1).
► Detach and remove the wiring harness up to the front chassis.
► Position the tractor as horizontally as possible.
► Position the uncoupling trolleys (1) under the tractor.
The trolley at the front of the tractor must be positioned under the front linkage or under the weight
block (depending on equipment).
If equipped with a suspended front axle, the central trolley must be positioned under the suspension
arm of the suspended front axle.
If equipped with a fixed front axle, the central trolley must be positioned under the front axle.
The trolley at the rear of the tractor must be positioned by the flywheel housing, without obstructing
removal of the sump.
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15. If equipped with a front power take-off:
► Undo and remove the bolts (1).
► Disconnect the front power take-off shaft (2).
If equipped with a suspended front axle:
► Undo and remove the bolt (1).
► Remove the shaft (2).
► Undo and remove the bolts (3) from the universal drive shaft.
If the bolts are not accessible, release the handbrake and the automatic parking brake (if fitted), lift one front
wheel only then rotate it until the universal drive shaft is in a suitable position.
► Disconnect the universal drive shaft.
► Lower the uncoupling trolley located under the front axle suspension arm to tilt the suspension arm fully.
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17. ► Undo and remove the nuts (1).
► Undo and remove the bolts and the nuts (1).
► Uncouple the engine's front chassis.
Recover and mark the adjustment shims positioned between the engine and the front chassis.
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18. On the left-hand side of the tractor:
► Undo and remove the bolts (1).
► Disconnect the connector (2).
► If necessary, remove the connector (3).
On the left-hand side of the tractor:
► Remove the clamp (1).
► Undo and remove the bolts (2).
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19. ► Fit a suitable lifting device under the sump (1).
► Undo and remove all the bolts from the sump.
► Remove the sump (1).
The sump on a 6-cylinder engine weighs 60 kg.
The sump on a 4-cylinder engine weighs 57 kg.
► Remove and dispose of the sump seal.
Fitting
► Inspect and clean the mating surfaces of the cylinder block and the engine flywheel housing. Remove any
product or sealing material previously applied.
► Apply a layer of Loctite (515) to the connections (1) between the cylinder block and the engine flywheel
housing, the front panel and the timing cover.
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