Great Plains 2S-2600HDF Operator Manual v2 - Manual (Page 92)

88 2S-2600HD Table of Contents Index Great Plains Manufacturing, Inc.
195-069M Table of Contents Index 2014-02-03
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
3 ⁄
18
-16x2in Grade 2 bolt (Great Plains part 802-266C). If
that size is not available in your local market, substitute
an M10x1.5 Class 5.8 metric bolt and nut.
Note: 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.
Marker Disk
Refer to Figure 93
If grease-seal cap for marker-disk-hub bearings is
damaged or missing, disassemble and clean hub.
Repack with grease and install a new seal or grease cap.
Figure 92
Marker Shear Bolt
15669
2
3
2
3
Figure 93
Marker Bearing and Cap
18795
1
1