
129
ADJUSTMENTS - MAINTENANCE
FAN ADJUSTMENT - FIGURE 189 TO FIGURE 192
DANGER: Stop the PTO and switch off the tractor
engine before adjusting the fan.
When the Forage Harvester has been in use for a long
period of time, the extremity of the fan’s four blades will
be worn, even if they are made from hardened steel.
The condition of the blades should be verified
every 100
hours
of operation.
WARNING: When working inside the cutting
chamber, block the cutter head with a piece of
wood in order to prevent it from rotating (see
Figure 246).
Figure 189 Fan adjustment
The fan throwing force is directly related to the imple-
mentation of the following procedure:
1. Open the top cover located between the spout base
and the cutter head.
2. Loosen the four bolts (item 3) on the bearing, on
both sides.
NOTE
: Check the condition of the fan’s bottom plate
(item 5); replace it if it is damaged or punctured.
Check the condition of the blades (item 6); re-
place them if they are bent or very worn (round-
ed corners).
INITIAL ADJUSTMENT:
3. Using the set screws (item 4), leave a backlash of
0.040” to 0.045” (1.02 to 1.14) between the edge of
the blade (item 6) and bottom plate of the fan (item
5) at the ”6H” (6 o’clock) position (see Figure 192).
Then leave a backlash of 0.090” to 0.120” (2.5 to 3)
between the edge of a blade and the bottom plate of
the fan at ”8H” (8 o’clock) position. This adjustment
is recoended to obtain a backlash that increases
from front to the rear of the fan contour.
NOTE
: Because of particular operating conditions and
the power of the tractor, the fan on the Forage
Harvester may become noisy. If this is the case,
progressively increase the backlash at 6H (6
o’clock) in 0.015” (0.4) increments until noise is
no longer noticable. However, a bigger backlash
may reduce the throwing capacity of the ma-
chine.
NOTE
: One screw turn is equal to a 1/16” (1.5) gap.
4. Re-tighten bolts (item 3) on both sides then tight-
en the screws (item 4) and lock them in place with
a nut (item 8). Once all these adjustments and/or
replacements have been fully completed, rotate the
fan manually and check for possible friction.
5. Put the cover and guards back in place.
NOTE
: All maintenance work described in this chapter
is
entirely the responsibility
of the owner and/
or operator.
NOTE
: If blades are replaced, always pull them out
slightly before tightening the bolts, as shown in
Figure 190.
0.040 to 0.045” (1.02 to 1.14)
0.090” to 0.120” (2.5 to 3)”
Manual
No
. F4117E987E V1.1
Содержание F41
Страница 1: ...Operator s Manual Forage Harvester Manual No F4117E987E V1 1 ...
Страница 108: ...108 LUBRICATION Figure 148 Universal joints and transmission chains Manual No F4117E987E V1 1 ...
Страница 133: ...133 ADJUSTMENTS MAINTENANCE 4 3 3 1 2 9 3 8 1 5 Figure 194 Knife grinding Manual No F4117E987E V1 1 ...