Troubleshooting; Technical Data; Disposal - Qualcast CDB30 Assembly Manual

Troubleshooting

General Troubleshooting
CAUTION! Always switch off the engine and pull the ignition cable before starting any inspection
or adjustment work.
CAUTION! If, after making an adjustment or repair to the engine, you let it run for a few minutes,
remember that the exhaust and other parts will get hot. Thus, do not touch parts that emanate
heat, as these may burn you.
The following table provides solutions to common problems encountered with the grass trimmer.
Fault Possible Cause
Engine not starting 1. Empty tank
2. Flooded engine
3. Fouled spark plug (remains of
carbon on the electrodes)
4. Electrode gap too large
5. Fouled carburetor or its jets
6. Damaged spark plug connection
or damaged spark plug
Engine runs too fast 1. Cold engine
when idle
Engine does not 1. Fouled spark plug (remains of
reach its maximum carbon on the electrodes) spark
speed gap to large
2. Fouled carburettor or its jets
3. Fouled air filter
4.Exhaust, exhaust channel
5. Sealing ring in crankcase not
sealing properly
6. Worn cylinders, pistons and
piston rings
7. Wrong fuel mix (too much oil)
8. Bad ignition
Engine would not 1. The switch was failed.
stop
2. The wiring terminal. was
disconnected.
Customer Helpline 0845 034 2279
14
www.gardenservicecentre.co.uk
Solution
1. Fill up
2. Close the throttle, pull cord several
times, if required take out the spark
plug and dry it
3. Clean the spark plug, check its
temperature, replace if needed.
4. Adjust at 0.6-0.7 mm
5. Clean the carburetor with air
6. Replace the spark plug.
1. Warm up slowly; alternatively
close the choke a bit.
1. Clean the spark plug, check its
temperature, replace if needed.
Adjust at 0.6-.07 mm.
2. Clean the carburettor with air
3. Clean
4. Take out the exhaust and clean it,
remove remains of carbon
5. Replace
6. Replace the cylinder, piston or
piston rings, reface the cylinder and
piston, assembly
7. Fill up according to the instructions
8. Adjust the ignition coil gap (0.3-0.4
mm)
1. Change the switch.
2. Connect up the wiring terminal.

Technical Data

Technical Data Table
Property
Engine type
Displacement(cc)
Max power /Engine speed
Max torque/engine speed
Specific fuel consumption
Tank capacity
Cutting diameter
Ignition
Diameter of cutting cord
Net weight
Sound pressure level L (dB)
PA
Sound power level L (dB)
WA
Vibration (m/s 2 )
Spark type

Disposal

Disposal Instructions
The grass trimmer and its accessories are made of various recyclable materials. Dispose of the
grass trimmer in accordance with your local recycling regulations.
Customer Helpline 0845 034 2279
www.gardenservicecentre.co.uk
Value
Single-cylinder, 2-stroke
29.9 cc
0.75 kW/8000 min -1
1 N.m/6000 min -1
650 g / kW.h
410 ml
400 mm
C.D.I
2 mm
4,9 kg
100 dB K=3 dB
110
13 m/s K=1.5 m/s
2 2
L8RTF
15