EMAK Oleo-Mac OM 106 Manual De Uso página 55

} The belt is correctly tensioned when a force of 4 kP (40 N; 72 Hz) acting on the middle distance between the belt
pulleys (1) and (5) results in the belt bending by approximately 0.5 cm.
6.3.9c
To measure force you can use a standard mechanical dynamometer available in stores selling such products.
} Tighten the lock nut (2) of the tensioning mechanism and again tighten the nut of the cogged belt pulley (1).
} Reattach the side and top cover and tighten them.
6.3.10 MOWING DECK - REMOVING IT FROM THE MACHINE
} Set the mowing deck to the highest position by moving the elevation adjustment lever to position 7.
} Slightly lift up the grass ejection chute (1) and slide it off the two pins welded to the frame of the mowing deck.
Then either move the chute approx. 10 cm backwards and secure it in place, or completely take it out through the
6.3.10a
rear plate.
} Using an appropriate wrench, turn nut (2) so that the tension on the spring (3) is completely released. Then remove
the belt (1) from the belt pulley of the electromagnetic engine transmission.
6.3.10b
}
Slide the spring pins (4) from both the rear mowing deck suspension shaft pins (5). Screw out the nut (6) from the
front shaft pin and pull out the shaft pin (7). Using pliers, slide out both pins (5). For the the mowing deck mulching
6.3.10c
option, first remove the part of the mulching flap lever that extends above the floor of the machine.
}
Slowly pull out the mowing deck to one side of the machine.
6.3.10d
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. Procedure for limiting (adjusting) looseness:
} Lift the hood.
} Loosen two nuts M12 (1) on the bolt of the eccentric.
6.3.11
} 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.
Neglecting this maintenance may result in damage to steering components.
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 (3) 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
6.3.12a
(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 90±1 mm.
6.3.12b
Do not over-tension the belt above this level, this will reduce its lifetime and may also cause damage to the transmission!
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