Great Plains 8-10m Press Range SN 12672+ Operator Manual - Manual (Page 43)

43 8-10m Press Range
Operating Instructions
8-10m Press Range Troubleshooting
Fault Possible cause Remedy
Taps on tilt cylinders closed Open taps on tilt cylinders
Power to limit/tilt switch is left
on
Turn off power to limit/tilt switch
Pressure in wing circuit too
high
Reduce pressure in wing circuit
Transport wheels carrying too
much weight
Add shims to wheels cylinders to
raise them out of work
X-Press only: Disc angle
cylinders or levelling
boards will not move
Diverter tap not engaged
correctly / supplying oil to
wrong system
Pull diverter tap to either ANGLE
or BOARDS
Power to limit/tilt switch is off
Ensure cable is pluged into rear
of tractor (turn on sidelights)
Position of limit/tilt switch is
incorrect
Reposition limit/tilt switch to trip
at desired height. Note: when
setting this switch it is necessary
to tilt the machine fully rearwards
each time to reset the limit
switch. If this is not done it will
appear that even with
adjustment the front to rear pitch
of the machine will not have
changed.
Wings hit catchers when
folding in and are not
able to hook around stub
axles
Taps on catcher line has not
been closed before
attempting to fold machine
Reverse pressure in wing
system to open wings. Turn off
tap in catcher line then fold
wings in. Once wings are in fully,
open tap lift catchers then close
taps to lock in transport position
Cannot retract wheel
cylinders to carry
machine weight/nip up
shims
Too much weight is on the
wheel units
Tilt machine rearwards onto DD
roll until working elements are
clear of the ground. Operate
wheel cylinder hydraulics,
add/remove shims then reverse
pressure to nip shims up tight on
wheel cylinders
Pressure showing on
gauges but tilt cylinders
not moving
Centre of machine rides
out / high
Machine appears to be
nose diving in work
6. Faults & Remedies