- 35 -
2) POSITIONING THE BLADE HOLDERS
The blade holders are positioned in a particular order to avoid vibration of the machine. When opening the gearcase
to remove one or more gearwheels, take care when reassembling that the correct position relative to the blade holders
is maintained.
The position of the blade holders may be drawn onto the soil, referring to the diagram below. This machine is viewed
from above when standing at its rear side.
POSITION OF BLADE HOLDERS IN DEGREES
Before replacing blade holders, take special care to mark their position relative to each
other. Then change each holder individually one after another, making sure that they are
fitted back into their original positions as marked in order to avoid the risk of interference
which could cause serious damage to the machine.
To remove the blade holders (T) (HR 5002 DR / 6002
DR) or (T') (HR 5002 DR - S / 6002 DR - S) from their
transmission shaft (A), simply remove the self-locking
bolts (G) or the special bolts (G') and their lock washers
(H) (fig. 38 and 39).
When refitting supports (T) or (T'), tighten bolts (G) or
(G') to a torque of 30 daNm / 220 ft.lbs. Apply Loctite
243 to the screws (G').
Check regularly the tightness of the fixing bolts (G) or
(G') of the supports (T) or (T').
3) CHANGING THE BLADES
Each support (T) (HR 5002 DR / 6002 DR) or (T') (HR
5002 DR - S / 6002 DR - S) is fitted with 2 blades (D)
or (K) which must be fitted so that their tapered edge
faces the direction of rotation (R) of the rotor (fig. 38
and 39).
a) HR 5002 DR / 6002 DR
The blades (D) are held by 2 bolts (V) and 2 locknuts
(E), as shown in figure 38 (torque to 38 daNm / 280
ft.lbs).
Check regularly the tightness of the blade
fixing bolts.
As these bolts are subject to strenuous
work, they are of high quality and require
a high torque (38 daNm / 280 ft.lbs). Use
the long 24 mm spanner delivered with
the machine to tighten them.
38
