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Atika GHB760A Manual

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18
¾
Feed branches with larger diameter slowly.
¾ Do not allow the shredded material to pile up too high in the area
of the ejection opening. This can lead to shredded material
blocking the ejection channel, and backing up to the filler
opening.
¾ Clean out the filler opening and ejection channel thoroughly if the
machine becomes blocked. Before doing this, stop the engine
and disconnect the spark plug connector.
¾ Please do not exceed the maximum branch diameter specified
(cutting fresh wood) for your appliance (∅ see “Technical data”).
Depending on the wood’s nature and freshness the maximum
branch diameter the machine can process may be smaller.
¾ The blades largely pull the material into the machine by
themselves.
¾ Immediately stop the engine when the cutting unit is blocked to
prevent the engine overloading. Eliminate the fault before
restarting the engine.
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Before each maintenance and cleaning work
− Stop the engine.
− Wait until the cutting device does not longer
move.
− Remove the spark plug connector.
Do not carry out maintenance work close to open flames.
Risk of fire.
Wear protective gloves in order to avoid injury to the
hands.
For maintaining and cleaning, removed security devices must
unconditionally be mounted properly and proved again.
Use only original parts. Other parts can result in unexpected
damages and injuries.
Be sure to have removed any tools from the machine after
completion of service work.
Maintenance and repair work other than those described in this
chapter is only allowed to be carried out by service staff.
Necessary repair works or maintainance have to be carried out
before using the machine.
Maintenance
To guarantee a long and reliable usage of the product carry out the
following maintainance works regularly.
Check the device for obvious defects such as
− loose fastening elements.
− worn out or damaged parts especially V-belts, blades and
beaters.
− leaks from the fuel tank cap or fuel lines.
− correct assembly and faultless covers and protective devices.
Tensioning the V-belt
Check the V-belt’s tension on a regular basis as a loose V-belt
reduces the engine’s speed.
The V-belt tension is correct if it can be pressed down by approx.
10mm.
1.
To check the V-belt (14) tension you have to remove the
belt cover (16).
2.
Check the V-belt tension.
3.
For retensioning loosen the four screws on the engine.
4. Move the engine so that you can press down the V-belt by
10mm.
5.
Make sure that the drive pulley (13) and the engine pulley
(15) are in true alignment.
6. Retighten the screws on the engine.
7. Re-mount the belt cover.
Replacing the V-belt
Replace damaged or too long V-belts without delay.
1.
Remove the belt cover (16).
2.
Loosen the four screws on the engine.
3. Move the engine so that the V-belt can be removed without any
problems.
4. Place a new V-belt.
5.
Tension the V-belt by moving the engine so that you can
press down the V-belt by 10mm.
6.
Make sure that the drive pulley (13) and the engine pulley
(15) are in true alignment.
7. Retighten the screws on the engine.
8. Re-mount the belt cover.
Turning / replacing the knives
Identification of dull knives:
Ö The shredding noise indicates sluggish working.
Ö The V-belt slips although it is tensioned.
Ö Heavily decrease of working speed.
1.
Turn up the covering (49).
2.
Loosen the screw and open the hinged cover (19).
3.
Turn the knife plate so that the knife (17) is visible through
the opening.
4.
Loosen at first the self-locking nuts.
Use the ring wrench to loosen the nuts.
5.
Remove then the screws.
6. Turn or replace the knife.
7. Mount the knife with the screws and the self-locking nuts and
tighten them firmly.
8. Close the hinged cover.
9. Turn the covering down again.
Replacing the counter knife
1. Remove the four nuts on the side hopper (31).
2.
Remove the four nuts on the counter knife (18).
3. Install a new counter knife.
4. Retighten the four nuts to close the side hopper.
Turning / replacing the beaters
If the shredding performance decreases, the beaters have to be
turned or replaced.
This maintenance work is only allowed to be done by our customer
service.
Cleaning / replacing the air filter (21)
Clean the air filter from dust and dirt on a regular basis to prevent
− starting problems,
− loss of output,
− too high fuel consumption.
Clean the air filter every 50 operating hours, or more frequently in
dusty environments (every 10 hours).
… 20 …


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