MacDon R85 Rotary Disc 16 Foot Pull-Type User Manual
Page 231
Symptom
Problem
Solution
Section
Mower conditioner angle
too steep.
Reduce mower
conditioner angle.
7.6 Mower Conditioner
Angle, page 96
Crop residue and dirt
deposits on cutterbar.
Clean cutterbar.
Excessive wear of cutting
components.
Discs stop when engaging
cutterbar.
Mud on cutterbar.
Remove mud from
cutterbar. Do not allow
mud to dry on cutterbar.
7.15 Unplugging the
Mower Conditioner, page
121
Improper belt tension.
Adjust conditioner drive
belt tension.
Belt not in proper groove
in pulley.
Move belt to proper
groove.
Inspecting the Conditioner
Drive Belt, page 189
Breakage of conditioner
drive belt.
Belt pulleys and idlers
misaligned.
Align pulleys and idler.
See MacDon Dealer.
Mower conditioner
dragging on one end
and pulling to that side.
Adjust mower conditioner
flotation on both ends.
7.1.1 Adjusting the Float,
page 86
Machine pulling to one
side.
Low tire pressure on one
side.
Check and correct tire
pressure (30 psi [207
kPa]).
—
Improper ground
connection.
Check for proper ground
between light base and
mower conditioner.
—
Defective bulb.
Replace bulb.
Tail/Brake Lights:
Replacing Bulbs and
Lenses, page 209
Lights Malfunctioning.
Poor connection.
Check connector at
tractor.
—
Low reservoir oil level.
Add oil to reservoir.
8.9.4 Adding Hydraulic
Oil, page 200
Defective motor.
Repair/replace motor.
Defective hydraulic pump.
Repair/replace pump.
Defective relief valve.
Repair/replace relief
valve.
PTO slipping on tractor.
Repair tractor PTO
system.
See MacDon Dealer.
Mower conditioner turns
while unloaded, but slows
or stops when starting to
cut.
Cold oil in system.
Reduce ground speed
until oil reaches operating
temperature.
Low reservoir oil level.
Add oil to reservoir.
8.9.4 Adding Hydraulic
Oil, page 200
Mower conditioner slows
when travelling uphill.
Insufficient oil to pump.
Install header drive
performance improvement
kit.
See MacDon Dealer.
169456
221
Rev. D