Mechanical - MacDon R85 Operator's Manual

8.2 Mechanical

Symptom
Excessive noise
Excessive vibration or
noise in header
Excessive heat in
cutterbar
Frequent blade damage
Machine pulling to one
side
169457
TROUBLESHOOTING
Problem
Bent cutter blade
Conditioner roll timing off
Conditioner roll gap too
small
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 Increase float.
Header dragging to one
end and pulling to that
side
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.
Adjust header float on
both ends.
162
Section
Replacing the Cutter
Blades, page 132
6.4 Roll Timing, page 71
6.2 Roll Gap, page 67
6.4 Roll Timing, page 71
6.12.1 Adjusting the
Overshot Auger, page 90
–
7.5.8 Lubricating the
Cutterbar, page 121
–
See MacDon Dealer.
7.6 Cutterbar Disc
Maintenance, page 126
6.6 Header Angle, page
78 and 6.1 Header Float,
page 65
6.8 Ground Speed, page
81
Inspecting Cutter Blades,
page 130
6.1 Header Float, page 65
Rev. F