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08/01/2018
500-641M
TSF1080, TSF1090, TSF1280 & TSF1290
Adjustments
60
Break Away Spring
If an outer boom arm strikes an obstruction, a pair of
spring-load rollers ride up and out of a detent, allowing
the arm to pivot back and upward.
The arm usually re-seats itself automatically. If it does
not:
1.
Stop the tractor and set the parking brake.
2.
Set hydraulic pump circuit to Float or shut down
PTO.
3.
Wear gloves and swing the arm forward until the
rollers are back in detent.
Periodically check that break-away springs are
compressed to dimension
in the figure:
5
1
2
inches (14cm)
Adjust spring by turning mounting nut under spring.
More serious obstructions may fail a shear bolt at the
inner arm pivot. See page 65 for replacing this shear
bolt.
Figure 52
Break-Away Spring
17001
1