Teagle Tomahawk 7100, Operator'S Manual

Page: 19 / 40

9. FITTING THE MACHINE ONTO THE TRACTOR
9.1 Fitting The PTO Shaft
Hitch the machine to the tractor either on the 3 point
linkage or on the drawbar.
Proceed as follows:
9.1.1 Measure the distance between the annular groove
on the tractor output shaft to the annular groove on the
machine input shaft.
9.1.2 Measure approximately the distance between the
retaining balls of each sliding yoke at either end of the
PTO shaft with it fully collapsed.
9.1.3 If the distance between the grooves is 150mm (6”)
longer or more than the distance between the locking
balls then the PTO shaft will not require cutting.
If the distance is less than 150mm the PTO shaft will need
to be shortened. Calculate the difference between the two
measured values and add 150mm (6”). The answer is the
amount to be removed from each half of the PTO shaft.
For example:
Distance measured between grooves 1100mm
Length of shaft between locking balls 1200mm
Length to reduce shaft by = (1200
-
1100 ) +150
Length to reduce shaft by = 100 +150
Length to reduce shaft by = 250 mm
9.1.4 Separate the 2 halves of the PTO shaft and remove
the amount calculated from each half guard and each half
tube. Deburr the drive tubes after cutting. Remove the
guards to facilitate cutting if required.
9.2 Trailed Machines
Hitch the machine drawbar to the tractor and turn off the
tractor engine. Fit the PTO shaft, with the clutch end of
the PTO shaft attached to the machine.
Make sure the drawbar is securely attached to the tractor,
as 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 contact 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, and drive over undulating ground, checking that
the PTO shaft does not come to within 100 mm (4 inches)
of bottoming. If necessary, cut the PTO shaft to the
correct length. With the shaft in its most extended
position, there should not be less than half of the original
overlap between the sliding members.
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.
9.3 Mounted Machines
Attach the Tomahawk to the 3 point tractor linkage. Make
sure the lower link stabilisers or check chains are tight
and the lower link arms are fixed from moving
horizontally.
When machine is fully attached lower the lower link arms
until the machine is resting on the ground. Turn off the
tractor engine and fit the PTO shaft, with the clutch end of
the PTO shaft attached to the machine.
Gradually lift the machine until minimum shaft length is
achieved checking that the PTO shaft does not come to
within 25 mm (1”) of bottoming. If necessary, cut the PTO
shaft to the correct length. With the shaft in its most
extended position, there should not be less than half of
the original overlap between the sliding members.
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. The height of the
gearbox input shaft should be adjusted to keep the PTO
shaft as straight as possible. For mounted machines the
length of the top link and the lift height can be adjusted,
see Figure 1.
Figure 1. Correct PTO geometry.
9.4 Trailed And Mounted Machines
Connect the hydraulic supply hose into the spool valve
connection of the tractor and the return hose to the free
flow return.
It is important that the supply hose to the
valve is connected to the pressure port of the tractor, this
hose is marked with an identifying tag.
Place the control desk in the cab and attach it to the
window in a convenient location using the suction cup.
Once the control desk 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 3 pin power socket on the control desk
power lead.
WARNING. Ensure the functions of the control desk
are completely understood before proceeding to use
the machine. In particular the bed chain is actuated
in the forward direction by pushing the forward direction
button and stopped by pressing the button again. Reverse
of the bed chain can only be actuated by holding the
reverse button.
Where the machine is supplied with a cable controlled
valve place the cable control unit in the cab and attach it
to the socket provided.
16
Tomahawk
Gearbox
Both Angles
Similar
Tractor