MacDon R113, Operator'S Manual

Page: 168 / 276

MAINTENANCE AND SERVICING
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 fl ipping or
changing a blade, replace using a
new
nut only.
3. Install new nut (D) and torque to 92 ft · lbf (125 N · m).
Figure 4.73: Nut, Shoulder Bolt, and
Cutter Blade
WARNING
Ensure 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.
4. Remove pin (or equivalent) from front hole of
rock guard.
5. Close cutterbar doors (refer to
3.4.2 Closing Cutterbar
Doors, page 38
).
Figure 4.74: Cutterbar Doors in Closed Position
4.5.5 Cutterbar Doors
WARNING
Do NOT operate the machine without all the cutterbar
doors down or without curtains installed and in
good condition.
There are two doors (A) that provide access to the
cutterbar area.
Rubber outboard curtains (B) are attached to each front
corner, and an inboard curtain (C) is installed at the center
fi xed cover location. Always keep these curtains down
when operating the mower conditioner.
IMPORTANT:
Replace curtains if they become worn or damaged.
Refer to
4.5.6 Curtains, page 160
or contact your Dealer
for replacement instructions.
Figure 4.75: Cutterbar Doors and Curtains
169820
158
Revision A