Snapper RTX102 Manual Do Utilizador página 98

6.3.8 MOWING DECK - CHECKING AND ADJUSTING THE V-BELT
Because of the demands placed on it, the tension of the mowing deck drive belt (1) declines over time and it is
necessary to tension this belt. The belt is tensioned using bolts and a spring.
► Set the mowing deck to position 1.
► Using a suitable wrench, turn nut (2) so that spring (3) is tensioned to a value of :
6.3.8
RTX102: 145±1 mm
RTX122: 155±1 mm
6.3.9 MOWING DECK - ADJUSTING THE COGGED BLADE DRIVE BELT
► Lower the mowing deck to the lowest position by moving the mowing height adjustment lever to position 1.
► Release the quick coupling pins of the mowing deck side covers and take the covers out.
6.3.9a
► Release the quick coupling pin (1) of the top cover (2) and approximately in its middle tilt the cover upwards.
► Slide an appropriate spanner under the metal cover, from underneath place it on the belt pulley bolt (1). From above
loosen the belt pulley nut.
► Loosen the lock nut (2) and nut (3). Then, using an appropriate wrench, turn nut (3) so that the cogged belt (4) is
6.3.9b
properly tensioned.
► The belt is correctly tensioned when a force of 4 kPa (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 mowing height adjustment lever to position 7.
► Slightly lift up the grass ejection chute (1) and slide it off the two pins (2) that are welded on 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
6.3.10a
the 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 mower.
► Slowly pull out the mowing deck to one side of the mower.
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.
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