Teagle Tomahawk 8500, Instruction Manual

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5
PREPARATION OF THE TRACTOR
For good visibility down both sides of the machine when
working and reversing, the tractor should be fitted with
mirrors.
The PTO power required to drive the Tomahawk is
typically about 60KW (80 HP). However, the suitability
of any particular tractor will depend upon,
a) the distance over which the straw is to be spread
b) the type of bale to be spread.
The machine is designed to use the standard 540 rpm
PTO shaft.
The hydraulic valve block requires a double acting spool
valve or a single acting valve with an unrestricted return.
Whichever is used, the hydraulic supply must be
independent of the 3-point linkage.
FITTING THE MACHINE ONTO THE TRACTOR
Ensure that the clutch end of the PTO Shaft is
fitted to the machine and is supported by the
Drawbar Bracket. Hitch the machine up by the Drawbar.
Switch off the engine and attach the PTO Shaft to the
tractor.
Make sure the Drawbar is securely attached to the
tractor, when loading bales or silage the weight of the
material on the Tailgate may cause the Drawbar to lift.
Check that the lower links are at a height such that they
will not foul the PTO shaft when the tractor is turning. If
they are not used regularly, it is recommended that they
be removed.
Gradually turn the tractor until maximum turning lock is
achieved checking that the PTO shaft does not come to
within 100 mm (4 inches) of bottoming. With the shaft in
its most extended position, there should not be less than
half of the original overlap between the sliding members.
If necessary, cut the PTO shaft to the correct length.
Connect the hydraulic hoses into the spool valve
connections of the tractor. It is important that the supply
hose to the valve is connected to the pressure port of
the tractor, this hose is marked with a red band. Place
the control box / cable control unit in the cab and attach
it to the auxiliary socket.
It is essential to get the relationship between the tractor
PTO shaft and the gearbox input shaft correct to give a
satisfactory PTO shaft life. The correct geometry exists
when the machine is horizontal, see Figure 1.
If the machine is shredding whilst turning on a regular
basis it is recommended that a PTO shaft with a wide
angle, constant velocity joint be fitted.
Figure 1. Correct PTO Geometry.
FITTING THE CONTROL BOX ONTO THE TRACTOR
CONTROL BOX
Supplied with the machine is a control box mounting
plate. This should be fitted in the cab in a suitable
position that is convenient to the operator ensuring the
cab structure is not drilled, welded or damaged.
To reverse the bracket, remove the mounting bolts
beneath the Control Box lid and re-position the control
box. Make sure the seal is in correct position when
reassembling.
A 7.5 amp blade type fuse is fitted in the supply cable
of the Control Box. If the connector provided on the
supply lead is not to be used, it is essential that the 7.5
amp fuse is retained to prevent damage resulting from
current overload.
If the supply cable is connected with the incorrect
polarity the Control Box will not turn on.
MACHINE CABLE
Once the Control Box has been positioned, route the
Machine Cable into the cab making sure it is kept away
from the rear wheel and any pinch points between the
PTO shaft and link arms. Where possible, route into the
cab through cable entry points on the tractor, allowing
the rear window to be kept closed during use. Plug the
cable connector into the socket on the Control Box and
secure using a retaining clip.