Troubleshooting; Mower Performance - MacDon R85 Operator's Manual

8 Troubleshooting

8.1 Mower Performance

Problem
Symptom
Dull, bent, or badly
worn blades
Build-up of dirt
Cutterbar plugging
between rock guards
Conditioner drive belt
slipping
Header angle too flat
for guards to pick up
down crop
Downed crop
Ragged or uneven
cutting of crop
Header flotation
too light, causing
bouncing
Excessive ground
speed
Bent cutterblades
Build-up of dirt
between rock guards
Excessive header
speed
Strips of uncut
crop left on field
Foreign object on
cutterbar
Disc not turning
Ground speed too
slow
169455
Solution
Replace blades.
Decrease header angle and
increase flotation. In some
conditions, it may be necessary
to carry header slightly with
header lift cylinders.
Adjust conditioner drive belt
tension.
Increase header angle.
Adjust header angle to cut closer
to ground.
Adjust to heavier float setting.
Reduce ground speed.
Replace blades.
Decrease header angle and
increase flotation.
Reduce header disc speed.
Disengage header and stop
engine. When all moving parts
are completely stopped, remove
foreign object.
Replace spindle key.
Increase ground speed.
157
Refer to
Replacing the Cutterblades,
page 133
6.6 Header Angle, page 83
6.1 Header Float, page 71
Replacing the Conditioner Drive
Belt, page 148
6.6 Header Angle, page 83
6.1 Header Float, page 71
6.8 Ground Speed, page 86
Replacing the Cutterblades,
page 133
6.6 Header Angle, page 83
6.1 Header Float, page 71
6.7.2 Disc Speed, page 85
6.14 Unplugging the Header,
page 94
Replacing a Spindle Key, page
140
6.8 Ground Speed, page 86
and
and
Revision F