MacDon R85 Rotary Disc 16 Foot Self-Propelled Windrower Headers User Manual
Page 171
Symptom
Problem
Solution
Section
Header angle too steep
Reduce header angle.
Crop residue and dirt
deposits on cutterbar
Clean cutterbar.
Excessive wear of cutting
components
Mud on cutterbar
Remove mud from
cutterbar. Do not allow
mud to dry on cutterbar.
–
Improper belt tension
Adjust conditioner drive
belt tension.
Belt not in proper groove
in pulley
Move belt to proper
groove.
7.7.2 Conditioner Drive
Belt, page 142
Foreign object between
rolls
Disengage header and
stop engine. When
all moving parts are
completely stopped,
remove foreign object.
–
Breakage of conditioner
drive belt
Belt pulleys and idlers
misaligned
Align pulleys and idler.
See MacDon Dealer.
Mud on cutterbar
Remove mud from
cutterbar. Do not allow
mud to dry on cutterbar.
–
Faulty drive belt
Check belt on pulleys.
7.7.2 Conditioner Drive
Belt, page 142
Discs don’t turn when
engaging header
Hoses not connected
Connect hoses.
5.7 Attaching the Header,
page 40
Header slows when going
uphill
Hydraulic oil level in
windrower is low
Add oil to windrower
reservoir.
See windrower operator’s
manual.
Defective hydraulic motor
Repair/replace hydraulic
motor.
Defective hydraulic pump
in windrower
Repair/replace pump.
Defective relief valve in
windrower
Repair/replace relief
valve.
See MacDon Dealer.
Header runs while
unloaded but slows or
stops when starting to cut
Cold oil in hydraulic drive
system
Reduce ground speed
until oil reaches operating
temperature.
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Rev. F