MacDon R85 Operator's Manual page 171

Symptom
Excessive wear of cutting
components
Machine pulling to one
side
Breakage of conditioner
drive belt
Disc does not turn when
engaging header
Header slows when going
uphill
Header runs while
unloaded, but slows
or stops when starting to
cut
169455
TROUBLESHOOTING
Problem
Header angle too steep
Crop residue and dirt
deposits on cutterbar
Mud on cutterbar
Header dragging on one
end and pulling to that
side
Belt not in proper groove
in pulley
Foreign object between
rolls
Belt pulleys and idlers
misaligned
Mud on cutterbar
Hoses not connected
Faulty drive belt
Poor electrical connection
at pump solenoid
Hydraulic oil level in
windrower is low
Defective hydraulic motor
Defective hydraulic pump
in windrower
Defective relief valve in
windrower
Cold oil in hydraulic drive
system
Solution
Reduce header angle.
Clean cutterbar.
Remove mud from
cutterbar: do NOT allow
mud to dry on cutterbar.
Adjust header flotation on
both ends.
Move belt to proper
groove.
Disengage header and
stop engine. When
all moving parts are
completely stopped,
remove foreign object.
Align pulleys and idler.
Remove mud from
cutterbar: do NOT allow
mud to dry on cutterbar.
Connect hoses.
Check drive belt pulleys.
Check connection at
windrower.
Add oil to windrower
reservoir.
Repair/replace hydraulic
motor.
Repair/replace pump.
Repair/replace relief
valve.
Reduce ground speed
until oil reaches operating
temperature.
161
Refer to
6.6 Header Angle, page
83
—
6.1.1 Adjusting Header
Float, page 72
Replacing the Conditioner
Drive Belt, page 148
—
See MacDon Dealer
—
5.7 Attaching the Header,
page 35
Inspecting the Conditioner
Drive Belt, page 146
Refer to windrower
operator's manual
See MacDon Dealer
6.8 Ground Speed, page
86
Revision F