Great-plains TSF1290 Operator Manual User Manual download pdf (Page 68)

64 TSF1080, TSF1090, TSF1280 & TSF1290 Great Plains Manufacturing, Inc.

500-641M 05/10/2012

Shear Bolt

Refer to Figure 56

Your Great Plains sprayer is equipped with four shear

bolts , two each side, to help prevent damage to the

booms. These are located at the inner boom pivot posts

at the ends of the center section. When the boom

encounters an obstruction, both bolts on that side fail,

allowing the boom to swing back.

If a pair of shear bolts breaks, replace them with a pair of

⁄

-11 x 3in Grade 5 bolts (Great Plains part 802-160C). If

this size and grade bolt is not immediately available, you

may temporarily substitute metric M14x2 Class 8.8 bolts.

Using a lower grade/class bolt causes nuisance shears.

Using a higher grade/class bolt may result in serious

equipment damage.

Inspect these bolts at the start of the spraying season to

insure the bolts have not been weakened through use or

rusting.

Stock a spare nut for each spare shear bolt, as the nut

end of the sheared bolt commonly falls away and is difﬁ-

cult to locate.

Figure 56

Shear Bolts

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Great-plains TSF1290 Operator Manual User Manual Page 68