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Customer Helpline 

0845 034 2279

www.gardenservicecentre.co.uk

Customer Helpline 

0845 034 2279

www.gardenservicecentre.co.uk

Storing the Brush cutter

Maintenance 

Maintenance Schedule

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.

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

24 hours of use

36 hours of use

Air filter

clean

clean

replace

Spark plug

check

clean

replace

Step 2 - Storing the Brush cutter for Extended Periods

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

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

Solution

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 

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.

 

Engine runs too fast 

when idle 

1. Cold engine 

1. Warm up slowly; alternatively 

close the choke a bit. 

Engine does not 

reach its maximum 

speed 

1. Fouled spark plug (remains of 

carbon on the electrodes) spark 

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

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)

 

Engine would not 

stop 

1. The switch  was failed. 

2. The wiring terminal.  was 

disconnected. 

1. Change the switch. 

2. Connect up the wiring terminal. 

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

Summary of Contents for CDB30A

Page 1: ...n 0845 034 2279 prior to returning product to store Qualcast 30cc Petrol Brush Cutter C o m p l e t e P r o d u c t S u p p o r t A f t e r s a l e s S e r v i c e GDB30B Scan to watch our new quick s...

Page 2: ...Safety WARNING Keep this assembly manual in a safe place following assembly for reference at a later date WARNING Always ensure anyone intending to operate this brush cutter is fully conversant with t...

Page 3: ...quired while assembling the brush cutter grass trimmer 2 Keep all packaging until the brush cutter is fully assembled and has been operated successfully NOTE Always recycle the packaging in accordance...

Page 4: ...the flanged washer with the slot in the gear head 2 Place the hex wrench through the slot in the flanged washer and gear to lock them together 3 Unscrew the grass trimmer head assembly 4 Remove the cu...

Page 5: ...279 prior to returning product to store Operation and Maintenance Manual Qualcast 30cc Petrol Brush Cutter C o m p l e t e P r o d u c t S u p p o r t A f t e r s a l e s S e r v i c e GDB30B Sep 2012...

Page 6: ...he spool line in the spool 14 Step 3 Inserting the line spool 14 Cleaning the Air Filter 15 Replacing the Spark Plug 15 Storing the Brush cutter 16 Step 1 Storing the Brush cutter for Short Periods 16...

Page 7: ...r extent of exposure may contribute to the condition There are measures that can be taken by the operator to possibly reduce the effects of vibration a Keep your body warm in cold weather When operati...

Page 8: ...ard is firmly secured in place and in good condition Use heavy gloves when operating the brush cutter and when installing or removing blades Always stop the engine and remove the spark plug wire befor...

Page 9: ...O NOT mix quantities larger than usable in a 30 day period 1a FUEL MIXTURE 1 Litre 1000 ml petrol 25cc 25 ml 2 Stroke engine oil 40 1 ratio Using the markings under the label 40 1 on the bottle pour t...

Page 10: ...Grass Trimmer Step 2 Starting the Engine continued 5 Use your left hand to hold the appliance firmly by the shaft whilst facing the rear of the unit 6 Pull out the pull cord until you feel resistance...

Page 11: ...that you will not be thrown off balance by the kickback reaction of the cutting blade NOTE Adjust the shoulder harness to position the brush cutter at comfortable operating position and to assure that...

Page 12: ...NCHOR HOLE ARROWS ON SPOOL SLOT SLOT ARROWS ON SPOOL FIRST LINE SECOND LINE FIRST LINE Completely remove the remains of the spool Make a nick in the middle of the new line and hook it into the slot in...

Page 13: ...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 Solution E...

Page 14: ...es have not been designed for use in commercial trade or industrial applications Consequently the guarantee is invalidated if the equipment is used in commercial trade or industrial applications or fo...

Page 15: ...1 Maximum motor speed 10000min 1 Diameter of trimming area 450mm Brush cutter 200mm Filament diameter 2mm Metal blade Photograph Applicable EC Directives 2006 42 EC MD 2004 108 EC EMC 1999 5 EC R TTE...

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