Gason NT8000, Operator'S & Parts Manual

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Operation
14
Road Transportation
The NT8000 was designed with ease of road
transport in mind. Before transporting, ensure
the following procedures are considered:
1.
Tractor has sufficient weight to handle the
machine. Generally the tractor needs to
be 2/3 the weight of the Implement com-
bination. See Specifications for machine’s
overall weight approximation.
2.
Tractor has sufficent braking capacity for
emergency stops. Maximum of 15m
stopping distance.
3.
Fully fold and raise the NT8000, close
both transport lockout valves to prevent
accidental lowering or unfolding of the
implement.
4.
Release hydraulic pressure from hydraulic
tines enabling them to freely move if they
hit an object.
5.
Understand state and local authority reg-
ulations for transport of agricultural ma-
chines. Always abide by these regulations.
E.g. dimensions, weight, time of day, road
and bridge restrictions, piloting, beacons,
signs, flags, etc.
6.
Centre frame wheels have the maximum
tyre presure to prevent excessive tyre side
wall heat and distortion and rapid tyre
wear.
7.
The safety tow chain must be fitted
around a substantial part of the tractor
and hooked back onto itself. Ensure hook
safety catch is engaged. The chain must
be fitted to allow normal angular
movement of the coupling without
unnecessary slack. If towing a combina-
tion, ensure safety chain tow capacity is
adequate. An additional chain may be re-
quired.
8. Do not exeed the maximum transport
speed of 20km/h.
9. Do not exceed 10° roll angle with wings
folded.
10. After transporting for a few kilometres,
stop and check all wheel nuts. This should
be repeated if transporting extended
distances. In particular, wheel nuts can
work loose until bedded in. Refer “Torque
Specifications” section of this manual.
Danger: Beware of power lines and other
obstructions when transporting with wings
folded.
Warning: The machine can be configured
such that the road transport width exceeds
3.5m. It is the operator’s responsibility to un-
derstand and follow local laws and regula-
tions.
Depth Control Circuit
The NT8000’s depth control circuit consists of
4 phasing cylinders connected in series. These
rephasing cylinders have a system that allows
oil to pass the piston when it is fully extended
or retracted allowing them to synchronize or
rephase.
The NT8000 depth control circuit has a dual
pilot operated check valve fitted which allows
the hydraulic couplings to be disconnected
from the tractor whilst the circuit is under
pressure (i.e. implement lifted).
The working depth of the implement can be
limited with mechanical depth stops fitted to
the master cylinder. A pressure relief valve is
used to limit the maximum retract pressure
and prevent excessive load on the depth stop
plates.
Setting the implement’s working depth is
achieved by the following procedure:
1.
Back off or remove the mechanical depth
stop plates on the master cylinder to al-
low the cylinders to fully retract.
2. Raise and lower the implement a couple
of times, allowing the cylinders to fully ex-
tend and rephase.
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