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Break away spring – Great Plains TSF1260 Operator Manual User Manual

Page 61

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Great Plains Manufacturing, Inc.

Adjustments

57

01/12/2012

500-642M

Break Away Spring

Refer to Figure 52
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 roll-
ers are back in detent.

Periodically check that break-away springs are com-
pressed to dimension

in the figure:

5

1

2

in (14cm)

Adjust spring by turning mounting nut under spring.

More serious obstructions may fail a shear bolt at the
inner arm pivot. See page 62 for replacing this shear
bolt.

Figure 52

Break-Away Spring

17001

1

1

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