215333
173
Revision A
1004029
D
B
A
C
Figure 4.84: Disc Blade
1.
Place a pin (or equivalent) in the front hole of the rock
guard to prevent disc rotation while tightening blade bolts.
2.
Install new or reversed blade (A) with shoulder bolt (B)
onto disc (C).
IMPORTANT:
Nuts are one-time-use only. When flipping or changing a
blade, replace using a
NEW
nut only.
3.
Install new nut (D) and torque to 125 Nm (92 lbf·ft).
WARNING
Ensure the cutterbar is completely clear of foreign objects.
Foreign objects can be ejected with considerable force when
the machine is started and may result in serious injury or
machine damage.
1010658
Figure 4.85: R1 Series Rotary Disc Pull-Type
4.
Close cutterbar doors. For instructions, refer to
Closing Cutterbar Doors, page 38
4.4.8
Maintaining Quick Change Blade System
The following topics outline maintenance procedures for the optional Quick Change Blade (QCB) system.
Inspecting Retaining Bolts
The material thickness of the retaining bolts and the quick change plate is checked using the supplied gauge.
DANGER
To avoid serious injuries or death due to insufficient thickness of material on the retaining bolts, check the thickness (A)
of the retaining bolts every time a blade is changed. Damaged or worn retaining bolts must always be replaced in pairs
at each cutting disc.
