Mechanical Problems - MacDon R85 Operator's Manual

8.2 Mechanical Problems

Symptom
Excessive noises
Excessive vibration or
noise in header
Excessive heat in
cutterbar
Frequent blade damage
169455
TROUBLESHOOTING
Problem
Bent cutterblade
Conditioner roll timing off
Bent cage deflector
Conditioner roll gap too
small
Mud deposits on
conditioner rolls
Conditioner rolls
contacting each other
Too much lubricant in
cutterbar
Mud on cutterbar
Spindle bearing failure
Material wrapped around
spindle
Cutting too low in rocky
field conditions
Header float set too heavy Increase flotation.
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
Solution
Replace blade.
Check roll timing and
adjust if necessary.
Replace deflector.
Check gap and adjust if
necessary.
Clean rolls.
Increase roll gap.
Check roll timing.
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 flotation.
Reduce ground speed.
Check all blade mounting
hardware and ensure
blades are free to move.
160
Refer to
Replacing the
Cutterblades, page 133
6.4.1 Checking Roll
and
Timing, page 77 6.4
Roll Timing, page 77
7.6.6 Rotary Deflectors,
page 136
6.2.2 Adjusting the Roll
Gap, page 74
—
6.2.2 Adjusting the Roll
Gap, page 74
6.4.1 Checking Roll
Timing, page 77
Draining the Cutterbar
Lubricant, page 120
—
See MacDon Dealer
Removing a Cutterbar
Disc, page 127
6.6 Header Angle, page
and
83 6.1.1 Adjusting
Header Float, page 72
6.1.1 Adjusting Header
Float, page 72
6.8 Ground Speed, page
86
Inspecting Cutterbar
Hardware
Revision F