Komatsu Galeo BR380JG-1E0 Shop Manual page 375

SEN02305-01
Replacement of toggle seat
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Before replacing the toggle seat, follow the
items below without fail.
After long use, the toggle seat becomes
deformed, so it may get stuck to the fixed
link or swing jaw. In this case, weld a hook
to the center of the toggle seat and pull out
the worn toggle seat.
In addition, if necessary, take action with
the gasket or other part as necessary.
(Toggle seat material: Carbon steel)
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There is no commonality of the toggle
seats, so when installing, be careful not to
mistake the assembly combinations.
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To prevent the lock link toggle seat from
falling, carry out the operation with the lock
cylinder extended to the maximum.
1. Start with removing the toggle plate before-
hand, referring to the section dealing with
replacement of the toggle plate in this manual.
2. Remove toggle seat holder plates (1) of the
swing jaw at both ends.
(Bolts to use: M20 x 8)
3. Screw in eyebolts (M12) into tap hole (2) at
both ends of the toggle seat and fit the wire.
34
4. Raise the toggle seat.
4
Toggle seat at swing jaw end: 44.5 kg
5. Remove only one toggle seat holder plate (3)
at the fixed link end.
6. Screw in an eyebolt (M12) on the side from
which a holding plate has been removed and
lift up the toggle seat provisionally, taking care
not to let it fall.
7. When the work of lifting up the toggle seat pro-
visionally has been completed, proceed to
remove a toggle seat holding plate on the
opposite side.
8. Insert eyebolts into both ends of the lock link
toggle seat, then raise the toggle seat.
4
Lock link toggle seat: 41.7 kg
9. Insert new toggle seats in the reverse order of
the works explained above.
30 Testing and adjusting
BR380JG-1E0