Stiga MPV 320W Workshop Manual page 40

WORKSHOP MANUAL
MPV 320W / 520W
3. Undo the screw (5) and remove the eccentric
belt guide pin (6).
4. Completely loosen the nuts (7) on the adjust-
ment screw (8) so as to allow ample move-
ment of the tensioner pulley (10) plate (9).
5. Loosen the screws (11) and turn the tensioner
pulley (10) plate (9) to completely loosen the
toothed belt (12).
6. Remove the belt (12).
When reassembling, perform the operations de-
scribed above in the reverse order.
IMPORTANT Replace the belt reinstating the tra-
jectory indicated in the diagram and making sure
the blades are oriented at 90° to each other.
90°
12
• Replace the eccentric belt guide (6) leaving a
0.5 mm clearance between the belt and the sur-
face of the belt guide.
• Before tightening the screws (11) adjust the ten-
sioner (7) in order to achieve a belt value on the
frequency meter (13) of 88-92 Hz.
Chapter
6 - CUTTING DECK AND COLLECTION
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6
11
7
10
11
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7
8
12
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EDITION PAGE
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