McHale 995 L+T Square Bale Wrapper
64
The sag is measured at the midpoint of the chain between the sprockets. Always
ensure one side of the chain is tight so that the correct reading is obtained. Even though
some drives differ in detail the basic adjustments stay the same.
Figure 11.n - Chain adjustments
11.9.1 Table drive chain
After a period of time, it may become necessary to readjust the drive chain.
To adjust go through the following procedure:
1. Tip up the wrapper table and fit the safety bar securely
2. Stop the tractor/power unit and ensure that it cannot be restarted, while
working on the machine.
3. Loosen the 4 x M16 bolts holding on the motor plate
4. Turn the M16 nyloc nut to adjust the chain. There should be 10-13 mm of sag
in the chain.
5. Tighten the 4 x M16 bolts holding on the motor plate
6. Remove the table safety lock and lower the table down
11.9.2 Table cradle drive chains
After a period of time, it may become necessary to readjust the table cradle drive
chains, either to tension the chains correctly or when the roller cradles centres are to
be changed.
Figure 11.o - Tip up table & fit safety bar Figure 11.p - Table drive chain
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