Technical Service - Gude KS 400 B Handbuch

If you sharpen the saw manually, use a suitable
round file and lead it at an angle of 30° between the
teeth.
•
Check the guide bar for any damages, wear and
tear. (Occasionally, turn the guide rail around to
provide for even wear and tear
Fuel and Chain Lubrication Data
Filling:
Mix 1:25 (4%) lead-free petrol with brand oil for two-
stroke air-cooled engines. Meaning that 0.2 litres of
oil will be added in 5 litres of petrol.
After app. 6-8 refuelling you can use commonly sold
Moto Mix, Aspen or 1:40 mixture.
Chain lobs oil:
Use regular brand oil if possible (Oregon).
Engine Repairs/Failures
Any repairs requiring professional knowledge should be
done by an authorised servicing centre. Any unauthor-
ised intervention may damage the machine or put your
safety at risk.
Engine Failures
Trouble Cause
The engine 1. Empty tank
will not start 2. The engine is
flooded
3. Fouled plug, (the
carbon residues
on electrodes)
too big distance
between the
electrodes.
4. Fouled carbu-
rettor or carbu-
rettor jets.

Technical service

Do you have any technical questions? Any claim? Do you need any spare parts or Operating
Instructions?
We will quickly and without needless bureaucracy help you at our homepage www.guede.com in the
Service part.
You can also contact by:
E-Mail: support@ts.guede.com
Fax: +49 (0) 79 04 / 700-51999
Tel.: +49 (0) 79 04 / 700-360
Help us be able to assist you. To be able to identify your appliance in case of any claim, we
need its serial No., order No. and year of production. All this data can be found on the type
label. Please enter it below for future reference.
Serial No.:_____________________________________
Order No.:_____________________________________
Year of production:___________________________________________
Trouble shooting
1. fill up the tank
2. Close the throttle, try
starting several
times, remove the
ignition plug if nec-
essary and dry it.
3. Clean the plug,
check the thermal
value and replace it
if necessary Set 0.6-
0.7 mm
4. Clean the carburet-
49
5. Damaged plug
connection or
ignition cable.
6. Ignition spark
missing
When idling, 1. Cold engine
the engine is
too fast
The engine 1. Fouled plug, (the
will not carbon residues
reach the on electrodes)
maximum too big distance
output between the
electrodes.
2. Fouled carbu-
rettor or carbu-
rettor jets.
3. Fouled air filter
4. Exhaust,
exhaust pipe
5. The packing ring
in the crankcase
leaking Worn
cylinders, pis-
tons , piston
rings
6. Poor fuel mix
(too much oil
7. Poor ignition
The engine 1. The plug is pale
will not stop grey with marks
of white-hot
(melting drops))
2. Carbon residue
in the ignition
area.
GB
tor blow it off
5. Replace
6. Check short-circuit
knob, the cable igni-
tion module and
replace if necessary.
Adjust the gap (0,3-
0,4 mm).
1. Heat up slowly, turn
down the choke if
necessary.
1. Clean the plug,
check the thermal
value and replace it
if necessary Set 0.6-
0.7 mm
5. Clean the carburet-
tor blow it off
2. Clean
3. Remove the exhaust
pipe, clean and re-
move carbon resi-
dues.
4. Replace
5. Replace the cylin-
der, piston or piston
rings, grind cylinder
and piston, install
6. fill up according to
instructions
7. Set a gap in the
ignition module
(0.3-0.4 mm)
1. Fit in the plug of
higher thermal
value.
2. Clean the cylinder
head, piston bottom
and cylinder the
engine block