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WORKSHOP MANUAL
MPV 320W / 520W
6.2.7 Replacing the entrainment plate stud bolts
Deformed stud bolts can be replaced by follow-
ing the instructions below to ensure the proper
execution of the work.
1. Unscrew the stud bolt (1) using two of the nuts
(2) blocked together, used for fastening the
blade holder disc.
2. Apply a thread brake product on the threaded
part to be screwed into the entrainment plate
(3).
NOTE The protruding part of the thread is rec-
ognisable by the punch on the head of the stud bolt itself.
3. Use the two nuts (2) to fully tighten the stud (1) in the hole on the plate (3).
6.2.8 Preliminary adjustment of the tie rods and lifting springs
NOTE This adjustment is NOT included in the
standard controls as it is set to default factory
settings and requires no further adjustment. The
calibration of the tie rods and springs should only
be performed if the relative components are re-
placed.
Follow the steps in the previous procedure, inter-
vening alternately from both sides.
1. Completely loosen the spring (1) using the nuts
(2) of the tie rod with eye bolt (3), to decrease
the load, without removing it completely.
2. Adjust the nuts (4) on the tie rod (5) until there
is a 149 mm distance between the two nuts.
3. Loosen the nut (7) and set the locknut (8) so
as to obtain a position of 21-23 mm from the
base plate.
4. Reinstate the tension of the spring (1) using
the nuts (2) up to the maximum allowed by the
tie rod thread (3).
Chapter
6 - CUTTING DECK AND COLLECTION
1
2
2
2
2
3
8
21-23 mm
7
EDITION
PAGE
2017
44 /
64
3
1
149 mm
4
5
4
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