MacDon R85, Operator'S Manual

Page: 166 / 188

TROUBLESHOOTING
7.2 Mechanical Problems
Symptom Problem Solution Refer to
Bent cutterblade Replace blade.
Replacing the
Cutterblades, page 123
Conditioner roll timing off
Check roll timing and
adjust if necessary.
4.4.1 Checking Roll
Timing, page 79
and
4.4
Roll Timing, page 79
Bent cage de fl ector Replace de fl ector.
5.4.8 Rotary Deflectors,
page 128
Excessive noises
Conditioner roll gap too
small Check gap and adjust if
necessary.
4.2.2 Adjusting Roll Gap,
page 76
Mud deposits on
conditioner rolls
Clean rolls. —
Increase roll gap.
4.2.2 Adjusting Roll Gap,
page 76
Excessive vibration or
noise in header
Conditioner rolls
contacting each other
Check roll timing.
4.4.1 Checking Roll
Timing, page 79
Excessive heat in
cutterbar Too much lubricant in
cutterbar Drain lubricant and re fi ll
with speci fi ed amount.
Draining the Cutterbar
Lubricant, page 111
Mud on cutterbar
Remove mud from
cutterbar: do NOT allow
mud to dry on cutterbar.
—
Spindle bearing failure Replace spindle bearing. See MacDon Dealer
Material wrapped around
spindle Remove disc and remove
material.
5.4.3 Removing a
Cutterbar Disc, page
117
Cutting too low in rocky
fi eld conditions
Decrease header angle:
increase
fl otation.
4.6 Header Angle, page
85
and
4.1.2 Adjusting
Float, page 74
Header fl oat set too heavy Increase fl otation.
4.1.2 Adjusting Float,
page 74
Ground speed too high
in rocky
fi eld conditions.
At high ground speed,
header tends to dig rocks
from ground instead of
fl oating over them
Reduce ground speed.
4.9 Ground Speed, page
88
Frequent blade damage
Blade incorrectly mounted
Check all blade mounting
hardware and ensure
blades are free to move.
Inspecting Cutterblade
Hardware, page 121
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Revision B