Mechanical Problems - MacDon R85 Operator's Manual

7.2 Mechanical Problems

Symptom
Excessive noise
Excessive noise
Excessive noise
Excessive vibration or
noise in header
Excessive vibration or
noise in header
Excessive vibration or
noise in header
Excessive vibration or
noise in header
Excessive heat in
cutterbar
Frequent blade damage
Frequent blade damage
Frequent blade damage
Frequent blade damage
Frequent blade damage
Frequent blade damage
Frequent blade damage
Machine pulling to one
side
Excessive wear of cutting
components
214366
TROUBLESHOOTING
Problem
Bent cutterblade
Conditioner roll timing off
Conditioner roll gap too
small
Conditioner rolls
contacting each other
Conditioner rolls
contacting each other
Auger center support
loose
Mud deposits on
conditioner rolls
Too much lubricant in
cutterbar
Mud on cutterbar
Spindle bearing failure
Material wrapped around
spindle
Cutting too low in rocky
field conditions
Ground speed too high in
rocky field conditions. At
High ground speed,
header tends to dig rocks
from ground instead of
floating over them
Blade incorrectly mounted
Header float set too heavy
Header dragging to one
end and pulling to that
side
Header angle too steep
Solution
Replace blade.
Check roll timing and
adjust if necessary.
Check gap and adjust if
necessary.
Increase roll gap.
Check roll timing.
Tighten bolts on support.
Clean rolls.
Drain lubricant and refill
with specified amount.
Remove mud from
cutterbar: do not allow
mud to dry on cutterbar.
Replace spindle bearing.
Remove disc and remove
material.
Decrease header angle:
increase float.
Reduce ground speed.
Check all blade mounting
hardware ensuring blades
are free to move.
Increase float.
Adjust header float on
both ends.
Reduce header angle.
182
Refer to
Replacing the
Cutterblades, page 144
4.4 Roll Timing, page 90
4.2.2 Adjusting Roll Gap,
page 87
4.2.2 Adjusting Roll Gap,
page 87
4.4 Roll Timing, page 90
4.13.1 Adjusting the
Overshot Auger, page 111
—
5.2.7 Lubricating the
Cutterbar, page 132
—
See MacDon Dealer
5.3 Cutterbar Discs, page
137
4.6 Header Angle, page
97 and 4.1 Header Float,
page 81
4.9 Ground Speed, page
101
Inspecting Discblades,
page 141
4.1 Header Float, page 81
4.1 Header Float, page 81
4.6 Header Angle, page
97
Revision A