Stihl GHE 420, Instruction Manual

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0478 201 9916 A - EN
– before carrying out any work on the
blade discs
– before checking or cleaning the
machine or before carrying out any
other work on it.
If foreign objects get into the cutting tool or
if the machine makes unusual noises or
vibrates in an unusual way, switch off the
motor immediately and allow the machine
to come to rest. Detach the mains plug,
remove the feed chute and perform the
following steps:
– Check the machine, in particular the
cutting unit (blade, blade discs, blade
shaft, blade fastening screw, clamping
ring) for damage and have any
necessary repairs carried out by a
technician before starting again and
working with the machine.
– Check that all parts of the cutting unit
are seated securely, retighten the
screws if necessary (observe tightening
torques).
– Have damaged parts replaced or
repaired by a technician; the parts must
be of similar quality.
4.7 Maintenance and repairs
Before carrying out any
maintenance operations
(cleaning, repair etc.) and
before checking whether the
electric cable is entwined or damaged,
park the machine on firm, level ground,
switch off the motor and disconnect the
mains plug.
Allow the machine to cool down for
approx. 5 minutes before performing any
maintenance operations.
Before performing maintenance of the
cutting tool, ensure that the cutting tool can
still be turned despite the locking device,
even when the power supply is switched
off.
The power cable must only be repaired or
replaced by authorised electricians.
Cleaning:
The complete machine must be cleaned
thoroughly following use. (
Ö 11.1)
Never use high-pressure cleaners and do
not clean the machine under running water
(e.g. using a garden hose).
Do not use aggressive cleaning agents.
These can damage plastics and metals,
impairing the safe operation of your STIHL
machine.
Maintenance operations:
Only maintenance operations described in
this instruction manual may be carried out.
Have all other work performed by a
specialist dealer.
If you do not have the necessary expertise
or auxiliary equipment, please
always
contact a specialist dealer.
STIHL recommends that you have
maintenance operations and repairs
performed exclusively by a STIHL
specialist dealer.
STIHL specialist dealers regularly attend
training courses and are provided with
technical information.
Only use tools, accessories or
attachments approved for this machine by
STIHL or technically identical parts.
Otherwise, there may be a risk of
accidents resulting in personal injury or
damage to the machine. If you have any
questions, please consult a specialist
dealer.
The characteristics of original STIHL tools,
accessories and spare parts are optimally
adapted to the machine and the user's
requirements. Genuine STIHL spare parts
can be recognised by the STIHL spare
parts number, by the STIHL lettering and,
if present, by the STIHL spare parts
symbol. On smaller parts, only the symbol
may be present.
Always keep warning and information
stickers clean and readable. Damaged or
missing stickers must be replaced by new,
original plates from your STIHL specialist
dealer. If a component is replaced with a
new component, ensure that the new
component is provided with the same
stickers.
Only perform work on the cutting unit when
wearing thick work gloves and exercising
extreme care.
Ensure that all nuts, pins and screws,
especially all the cutting unit screws, are
securely tightened, so that the machine is
in a safe operating condition.
Check the entire machine for wear or
damage on a regular basis, particularly
before extended periods when the
machine is not in use (e.g. over winter).
For safety reasons, worn or damaged
parts must be replaced immediately to
ensure that the machine is always in a safe
operating condition.
Components or guards that are removed
for maintenance operations must be
properly reinstalled immediately.
4.8 Storage for prolonged periods
without operation
Allow the machine to cool for approx. 5
minutes before storing it in an enclosed
space.