ADJUSTMENTS
33
DRIVE BELT REPLACEMENT - FIGURE 52
Follow these instructions to replace the drive belts:
1. Remove the bolted guard.
2. Unhook the spring (item 1 in figure 52).
3. Remove the tightener (item 2 in figure 52) if
needed.
4. Mark the alignment of the couplers to keep chain
synchronised, then remove chains.
5. Remove both belts and install new ones by sliding
them between the coupler sprocket. Move the cou-
plers away from each other if necessary.
6. Readjust the tightener stopper - 1/16” to 1/8” (1.5 to
3 mm) between the stopper (item 3 in figure 49) and
the tightener (item 2 in figure 52).
7. Put guard back on.
1
2
Figure 52 Belt tightener
DRUM ADJUSTMENT - FIGURES 53 TO 56
The two drums are factory adjusted and do not need
adjustment, except in the case of repair (bearing repla-
cement). An alignment may be necessary to center the
drum fingers (item 5 in figure 55) between the scraper
plates (item 4 in figure 55).
To adjust:
1. Position the 1 1/2” (38 mm) blocks (items 1, figure
54) between the frame and the cutting disk, aligned
with the knife sections (item 2). Position two blocks
on the square cross beam and one on the frame’s
main beam.
2. Position a 1 1/4” (32 mm) block (item 3 in figure 54)
between the disk and the lower drum fingers, ali-
gned with the other blocks. The two drums should
now be parallel.
3. Position drums to obtain 1/8” (3 mm) between the
front scraper finger (item 4 in figure 55) and the
drum edge (item 5 in figure 55).
4. Move drum to get approximately 1/4” (6 mm)
between the rear scraper finger and the drum (figure
55).
5. Slightly tighten the bearing support plate bolts then
remove the blocks. Holes in the frame allow for a
minor drum adjustment, if needed.
6. Center the drum fingers between the scraper slots
by moving the drum bearing. Loosen bolts (item 6,
figure 56) to move the bearing,
7. Tighten the bearing bolts.
8. Turn the drum a full rotation to make sure it runs
smoothly.
.
1
1
1
2
Figure 53
Block 1-1/2" (38 mm)
Block 1-1/4" ( 32 mm)
1
3
Figure 54 Drum adjustment
Manual No.F6418E996E
Summary of Contents for F64-90R
Page 1: ...Manual No F6418E996E...
