7
If the pressure switch is set too high you can easily
block the fan. If the pressure switch is too low the
machine will keep going into automatic reverse and take
a long time to spread the bale (bleed the pressure
switch if the machine goes into unloading at random
times).
Should the rotor or cross beater become blocked with
material it may be necessary to turn the rotor
backwards. This can be achieved by pushing the rotor
paddles with a post through the outlet chute. Further
access may be gained by removing the blockage panel
from the side of the upper rotor housing.
Never begin to unblock a machine until you disengage
the hydraulic pump, lower the machine to the ground,
apply the handbrake, stop the engine, remove the key,
and wait for the rotor to come to rest.
MAINTENANCE
Never enter the bale chamber unless the machine
has been lowered to the ground, the engine has
been stopped, the key removed and the machine
come to a rest.
HOOK RIPPERS / BLADES
The Telehawk has been supplied with hook rippers as
standard. It is possible to fit blades instead.
Extreme care must be taken when carrying out
maintenance work on or around the blades (if fitted) as
they are incredibly sharp. When replacing blades use
13mm ring spanners with long handles to allow the bolts
to be removed whilst avoiding contact with the sharp
edges of the blades. Always wear heavy duty leather
gloves, and work slowly and methodically.
CROSSBEATER HOOK RIPPERS REPLACEMENT
Wedge the cross beater and the rotor to prevent them
from turning and pinching hands and fingers between
the bale restraint and the cross beater.
If blades have been fitted cover areas of the cross
beater not being worked on with old carpet or hessian
sacking.
Hook rippers will need replacing when worn. To do this
remove both retaining bolts, replace the hook rippers
and use new bolts and locking nuts.
Blades can simply be rotated and repositioned to
achieve a new sharp cutting edge. When both edges
are blunt the
blades themselves
will require
replacement.
BED CHAIN
To tension the bed chain, release the rear lock nut on
the bed chain tensioner and jack the mounting bush
using the other nut. The bed chain should be tensioned
such that the chain can be lifted 50mm above the bed
midway between the front and rear sprockets. Retighten
the locking nuts.
If the bed chain becomes tight in use, check that the
grooves in the idler wheels have not become tightly
packed with straw. If they have they need clearing and
the condition of the scrapers needs to be checked.
If the area beneath the bed chain becomes blocked or
requires attention, remove the bolted inspection panel
underneath the machine and clear the blockage.
When the bed chain is reaching maximum adjustment
then 2 links from either side of the chain will need
removing to extend the lifespan of the chain. The
earliest this can be done is when 40mm of adjustment
had been reached. To shorten, split the chain and
remove 2 links from either side, re
-
join and tension.
(see figure 5 below).
Check the front scrapers for excessive wear, these may
require replacing over time.
Figure 3. Pressure switch
Figure 4. Sprocket scraper position.
Figure 5. Dimension before shortening bed chain
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