2018-06-19
195-442M
3S-4000, 3S-4000F, 3S-4000HD, 3S-4000HDF
Maintenance and Lubrication
88
Marker Maintenance
Marker Transport Carrier
When marker is folded, the second section should be
centered in transport carrier saddle and be parallel with
top of drill box.
To adjust height of saddle, loosen
1
/
2
x2 inch U-bolts
that hold carrier tube to mounting bracket. Slide carrier
tube up or down as needed.
Marker Shear Bolt
The marker arm is attached to marker body with a shear
bolt
, which is intended to fail if the marker strikes an
obstruction, allowing the marker to swing back around a
second bolt
.
If the shear bolt breaks, replace it with an equivalent
7
/
16
-14x2 inch Grade 5 bolt (Great Plains part
802-589C). If that size is not available in your local
market, substitute an M10x0.75 Class 8.8 metric bolt and
nut.
If your conditions result in frequent shears, the marker
shear base has storage holes for spare bolts.
Replacing the bolt with a lower grade, or smaller size,
can result in nuisance shears.
Equipment Damage Risk:
Replacing the bolt with a higher grade can result in marker
damage.
Figure 96
Marker Transport Carrier
18961
1
Figure 97
Marker Shear Bolt
23204
1
2