Publicité
Les langues disponibles
Les langues disponibles
6.3.11 MAINTENANCE OF STEERING
Regularly check that there is not excessive looseness between the cogged steering segment
and the steering wheel pinion. If higher looseness is identified, it is necessary to limit it.
Neglecting this maintenance may result in damage to steering components.
Procedure for limiting (adjusting) looseness:
Open the hood of the machine.
Loosen two nuts M12 (1) on the bolt of the eccentric.
Place a suitable wrench on to the hexagon of the eccentric (2) and turn it until looseness
is limited to a minimum.
Tighten both nuts M12 (1) using a torque of 35 - 45 Nm.
6.3.12 CHECKING AND ADJUSTING THE TRAVEL DRIVE BELT
Regularly check the tension of the travel drive belt. The belt is correctly tensioned when
a force of 4 kP acting on the middle distance between the belt pulleys (1) and (2) results
in the belt bending by approximately 1.5 cm. When the amount of bend increases, it is
necessary to adjust the tension.
Positions in the picture are:
1 Engine belt pulley
2 Guide belt pulley
3 Tensioning belt pulley
4 Transmission belt pulley
To measure force you can use a standard mechanical dynamometer available in stores selling
such products.
Adjust the tension of the belt by tightening nut (6) so that the spring (5) is stretched to
a length of 95±1 mm.
Do not over-tension the belt above this level, this will reduce its lifetime and may
also cause damage to the transmission!
6.3.13 REPLACING BELTS
Replacing drive belts is a relatively demanding operation, which needs to performed by an authorised
service centre.
6.3.14 REPLACING WHEELS
Before replacing one of the wheels, park the tractor on a horizontal and rigid surface, turn off the engine
and remove the key from the ignition. Perform the replacement as follows:
Lift the machine using an appropriate jack on the side where you will perform the replacement.
Locate the jack under a solid part of the frame or on the arm of the transmission. Using
a wooden block, secure the machine to prevent it rolling off.
Remove the protective cover from the wheel (only the front wheels).
Using a suitable screwdriver remove the retaining ring and remove the washer.
Pull the wheel off the shaft. On the rear wheels there is a shaft spring.
When reattaching the wheel proceed in the reverse sequence to its removal. Before attaching the wheel
clean all parts and lightly grease the shaft with a plastic lubricant. Especially for wheels on the rear
axle this lubrication is essential for the subsequent removal of the wheel. In the event that
lubrication is not performed the subsequent attachment may be very difficult.
104
6.3.11
6.3.12a
6.3.12b
6.3.14
Publicité
