Storing The Brush Cutter; Step 1 - Storing The Brush Cutter For Short Periods; Step 2 - Storing The Brush Cutter For Extended Periods; Maintenance - Qualcast GDB30B Assembly Manual

Storing the Brush cutter

Step 1 - Storing the Brush cutter for Short Periods

• Drain all fuel from tank into a container approved for petrol. Run engine until it stops. Clean
all foreign material from the trimmer. Store it in a well-ventilated place that is inaccessible to
children.
• Keep away from corrosive agents such as garden chemicals and de-icing salts.
• Abide by all ISO and local regulations for the safe storage and handling of petrol. Excess fuel
should be used up in other 2-Stroke engine powered equipment.
• Remove any coarse dirt.
• Wipe the machine with a soft damp cloth.

Step 2 - Storing the Brush cutter for Extended Periods

• Clean air filter.
• Replace the spark plug with an exact replacement.

Maintenance

Maintenance Schedule

Performing routine maintenance correctly on your brush cutter will ensure you get years of
trouble free use.
Please keep this manual safe for future reference.
It is recommended that the following maintenance schedule is adhered to. This will ensure the
brush cutter operated correctly and is safe to use.
12 hours of use
Air filter clean
Spark plug check
List of vulnerable parts
901305 air filter
901049 air filter cover
902700 spark plug L8RTF
901313 Fuel filter
901024 string line
902009 string head assy
902221 blade
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16
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24 hours of use 36 hours of use
clean replace
clean replace

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 brush cutter.
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.
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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.
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