MacDon R85 - 7.2 Mechanical Problems

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