Teagle Tomahawk 8500 Instruction Manual Download Page 14

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HYDRAULIC VALVE

Before attempting to dismantle any of the hydraulic
system, the Tailgate and Deflectors must be fully
lowered to prevent injury from the unexpected

lowering of these components.

If Contamination of the oil occurs then this can result in
failure of the hydraulic circuit. An inline pressure filter is
available if oil contamination is regularly happening.

Where  a  inline  pressure  filter  is  fitted,  the  element
should  be  replaced  annually.  To  replace  the  element,
remove  the  guard  covering  the  hydraulic  valve  on  the
front right of the machine and unscrew the filter canister.
Replace  element,  retighten  canister,  pressurise  the
system, inspect for any leaks from canister and fit valve
guard.

If  problems  are  experienced  with  either  the  hydraulic
system  or  electric  controls,  please  contact  Teagle
Machinery  Ltd.  for  advice  as  a  separate  manual  is
available to cover troubleshooting and repair

SLIP CLUTCH

If the clutch slips repeatedly for no apparent reason
there are a number of things to be checked:

Firstly check that the clutch linings do not show signs of
damage or excessive wear. If so, they should be
replaced. When new they are 3mm, (1/8") thick.

Make sure that the compressed spring length is set to
give the correct torque setting – see PTO shaft parts list.

If the clutch continues to slip it should be adjusted as
follows.

1. Remove the guard fitted to the Rotor Gearbox.

2. Fit the PTO shaft with the Slip Clutch at the machine

end.

3. Insert a piece of wood through the Discharge Chute

and position it such that it prevents the Rotor from
turning.

4. Insert a steel bar through the rear PTO yoke and use

a spring balance to obtain the correct torque setting.
The  clutch  should  just  slip  at  a  torque  of  1200  Nm
(900 lbft) - equal to a force of 1000N at 1.2m (225 lb
at 4ft) from the centre of the yoke.  Adjust the Clutch
as  necessary  using  the  eight  spring  loaded  clamp
bolts.    (Slip  clutch  is  set  to  minimum  torque  setting
when manufactured)

WHEEL REPLACEMENT

If  it  is  necessary  to  remove  a  Wheel,  place  a  jack
underneath  the  Axle  Beam,  loosen  the  wheel  nuts  and
raise  the  machine  until  the  Wheel  can  be  removed.
Place  an  axle  stand  underneath  the  machine  before
removing  the  Wheel.    Refit  the  Wheel  and  tighten  the
wheel nuts.

WHEEL NUTS

Before using a new machine and daily during use, check
the wheel nuts are tight. The recommended torque for
the 6 Stud Wheel is 400Nm (320lb.ft).

Once the nuts are allowed to work loose, it may be
impossible to keep them tight and new nuts and studs

will be required. In extreme cases, damage to the wheel
rims and hubs may result.

TYRE PRESSURES

Check tyre pressures regularly, inflating to the pressures
shown in the following table. Over inflation can be
dangerous.

Table 2. Tyre Pressures.

LUBRICATION

Good quality semi-solid grease should be applied to the
following grease points:

Table 3. Lubrication Schedule

The above frequencies are based on typical daily use for
bedding & feeding purposes. Continuous use for special
applications may necessitate more frequent lubrication.

To  gain  access  to  PTO  shaft  joints,  use  two  flat  ended
screwdrivers  to  release  the  clips  in  the  plastic  guard.
The  guard  cone  can  then  be  pulled  back  to  allow
access, this is shown in Figure 8.  To reassemble, align
the  clips  with  the  two  tabs  on  the  inner  ring,  push  the
cone  back towards the  PTO shaft joint,  the guard cone
will snap back into position.

Tyre Size

8500/8550 Pressure bar

(psi)

10.0/75-15.3

2.0 ( 29 )

11.5/80-15.3

1.2 ( 17 )

12.5/80-15.3

1.2 ( 17 )

7.50 - 16.0 (14PR)

Refer To Tyre

Greasing / Oil