MacDon R85 Operator's Manual page 171

Symptom
Excessive wear of cutting
components
Breakage of conditioner
drive belt
Discs don't turn when
engaging header
Header slows when going
uphill
Header runs while
unloaded but slows or
stops when starting to cut
169457
TROUBLESHOOTING
Problem
Header angle too steep
Crop residue and dirt
deposits on cutterbar
Mud on cutterbar
Improper belt tension
Belt not in proper groove
in pulley
Foreign object between
rolls
Belt pulleys and idlers
misaligned
Mud on cutterbar
Faulty drive belt
Hoses not connected
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 conditioner drive
belt tension.
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.
Check belt on pulleys.
Connect hoses.
Add oil to windrower
reservoir.
Repair/replace hydraulic
motor.
Repair/replace pump.
Repair/replace relief
valve.
Reduce ground speed
until oil reaches operating
temperature.
163
Section
6.6 Header Angle, page
78
–
7.7.2 Conditioner Drive
Belt, page 142
–
See MacDon Dealer.
–
7.7.2 Conditioner Drive
Belt, page 142
5.7 Attaching the Header,
page 40
See windrower operator's
manual.
See MacDon Dealer.
6.8 Ground Speed, page
81
Rev. F