WORKSHOP MANUAL
MPV 320W / 520W
Chapter
6 - CUTTING DECK AND COLLECTION
EDITION
2017
PAGE
43 /
64
c) Reassembly of the flanged supports
To reassemble, follow the operations described
above in the reverse order, taking care to:
• Tighten the flang-
ed support (8) fixing
screws (7) to a torque
of 14-18 Nm.
• Make sure the blades
are oriented at 90° to
each other.
6.2.6 Flanged supports maintenance
Noise or abnormal vibrations during cutting can be caused by worn bearings or deformation of
the drive shaft due to accidental impact. In this case, proceed with the necessary verifications and
replace the parts as required.
NOTE
The flanged supports, although some details are different, require the same procedures for
removing and replacing components.
To replace the drive shaft or bearings, follow the
procedure below.
1. Remove the key (1) and hit the shaft with a
plastic mallet on the toothed pulley side in or-
der to remove the shaft (2) together with the
lower bearing (3), the spacer (4) and the dust
guard disc (5).
2. The upper bearing (6) still in place must be re-
moved by hitting it from the inside of the flange
using a 10 ÷ 12 mm round bar.
When reassembling,
1. Fit the shaft (2) into the hole on the lower bearing (3).
2. Assemble the dust guard disc (5) and spacer (4) on the shaft (2).
3. Insert everything in the support (7), mount the upper bearing (6) using
a bushing of suitable diameter capable of acting on the inner ring of the
bearing.
2
4
3
5
90°
8
7
1
4
3
5
2
6
7
