MacDon R85 Rotary Disc 13 Foot Self-Propelled Windrower Header User Manual
Page 159
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.
—
Machine pulling to one
side
Header dragging on one
end and pulling to that
side
Adjust header flotation on
both ends
6.1.1 Adjusting Header
Float, page 68
Belt not in proper groove
in pulley
Move belt to proper groove
Replacing the Conditioner
Drive Belt, page 140
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.
—
Hoses not connected
Connect hoses
5.7 Attaching the Header,
page 39
Faulty drive belt
Check drive belt pulleys
Inspecting the Conditioner
Drive Belt, page 138
Disc does not turn when
engaging header
Poor electrical connection
at pump solenoid
Check connection at
windrower
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
169455
151
Rev. E