Dion F67, Руководство оператора, Страница: 26 / 38

26
F6715E968
ADJUSTMENTS - MAINTENANCE
To tighten the chain, simply loosen nut (item 1) and
then tighten bolt (item 2) until chain tension is appro-
priate or until nut (item 1) no longer touches support
bracket (item 4) 1/16” (2 mm). Tighten nut (item 1).
A spring (item 3) absorbs shocks during operation
(figure 31). Check the chain pre-tension by adjust -
ing the gap between the spring cup and the frame to
1/4” (6mm),
when the chain is completely loosen
.
4
2
1/16" (2mm)
Figure 30 Tighten bolt (item 2)
3
5
1/4" (6mm)
Figure 31
CONVEYOR CHAIN VERIFICATION
FIGURES 32, 33 AND 34
Check chain stretch every 40 hours of operation or
at the end of the season. The chain has two cou-
pling links. When the chain is half worn, it is possible
to reduce its length by removing one link in order
to reposition the tighteners (figure 34). When chain
stretch exceeds 3%, it must be replaced. Use the
special gauge located under the right chain guard
(figure 32). This gauge is supplied with the attach -
ment and is used for checking chain stretch.
Figure 32 Chain gauge
Set gauge on chain as shown in figure 33. The left
side of the gauge must rest against one of the rivets
as shown in figure 34. The chain must be replaced
when one of the rivets (on the left) is resting on the
chain gauge as shown in figure 34.
Figure 33 Measuring chain stretch