Header Hydraulics; Header Drive - MacDon 9250 Operator's Manual

SYMPTOM

Header Hydraulics

Header or reel not
lifting.
Header or reel lifts but
lacks power.
Reel and/or conveyor
not turning.
Reel and/or conveyor
turns but lacks power.

Header Drive

Sickle drive not
engaging.
* See your Windrower dealer
Form # 46584
TROUBLE SHOOTING
PROBLEM
Contaminant in relief
valve.
Appropriate solenoids
not being energized by
activating switch.
Relief pressure too low,
or contaminant in relief
valve.
Header drive switch not
engaged.
Flow controls turned
down too low.
Contaminant in relief
valve.
Appropriate solenoid on
flow control block not
being energized.
Relief pressure too low,
or contaminant in relief
valve.
Header drive switch in
cab not engaged.
Tensioning cylinder
front pivot bolt too tight,
preventing idler bracket
from rotating up to
switch.
Rear lower belt support
pivot too tight,
preventing cylinder from
contacting switch at
front.
129
SOLUTION
Clean relief valve at
cylinder control valve.
Check electrical
connections; repair or
replace solenoid(s).
Check/adjust/clean
relief valve at cylinder
control valve.
Engage switch.
Turn flow control clock-
wise to increase flow.
Clean relief valve at flow
control block.
Check electrical
connections; repair or
replace solenoid.
Check/adjust/clean
relief valve at flow
control block.
Engage switch.
Adjust locknuts to allow
free movement of
cylinder ram on bolt.
Adjust locknuts to allow
free movement of
support on pivot bolt.
Issue 11/06 Web Rev_01
REF.
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