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the dipstick is rested on the filler pipe, the oil level must be between the min and max 
marks on the dipstick.

2.  Start the engine and allow it to run briefly.
3.  Stop the engine, wait one minute and check the oil level. Top up if necessary.

NOTE! 

See more in engine manual.

Replacing the blade

WARNING!

- Before you remove the grass collection bag, stop the engine and wait until the blade 
stops completely.
- You will need garden gloves (not provided) and a spanner wrench to remove the 
blade.
- Always handle the blade with care- sharp edges could cause injury USE GLOVES.
- Don’t hold the blade by hand directly.

Renew your metal blade after 50Hrs mowing or 2yrs which ever is sooner regardless of
condition.

Regularly check your blade. If the cut of your grass is poor, the blade might be blunt. 
Damaged blades not only result in a bad cut, they cause excessive vibration and 
uneconomical running of the engine. If the blade has worn excessively and become pitted 
and blunt, it should be replaced or sharpened.

1.  Tip the machine slightly towards the oil filler pipe and reach under the deck. 
2.  Hold the blade and unscrew the blade bolt counterclockwise using a spanner wrench. 

Remove the washer and the blade. 

STORING AND MAINTENANCE

Fig 13

STORING AND MAINTENANCE

3.  Inspect the blade adaptor on any signs of damage. 
4.  Fit a new blade, locate the blade on the two studs on the blade flange and then replace 

the washer and bolts. 

5.  Check the washer is still slightly domed to keep the pressure on the bold to stop it 

unwinding, keeping the blade firmly secure. Then replace the washer (right way around!) 
and bolts. 

6.  Make sure the blade is correctly located, and then firmly tighten the bolt. Do not over 

tighten. The up turn of the blade must project into the motor compartment.

NOTE!

 The blade carrier is designed to break under heavy blade impact to protect 

the machine. if this happens also replace the blade carrier. This can be purchased 
from www.yardforce.co.uk
If you are unsure about performing this operation call our helpline or go to an 
authorised dealer to change the blade for you.
Spare blades can be purchased via www.yardforce.co.uk

Storing the Lawnmower for Short Periods

The lawnmower can be stored for short periods of time (less than 15 days) without performing 
any storage maintenance. Before placing the lawnmower into storage always carry out the 
following:
1.  Allow the engine to fully cool.
2.  Ensure the grass bag is empty.
3.  Clean all debris from under the mower deck.
4.  Store the lawnmower on flat and level surface with the mower upright.
5.  Store in a safe place which is not accessible by children or people who are not familiar 

with operation.

Storing the Lawnmower for Extended Periods

If the lawnmower is to be place into storage for more than 15 days, storage maintenance 
must be performed on the lawnmower. If the following steps are not carried out, when you 
next operate the lawnmower it may not start correctly and may need to be serviced.

CAUTION: 

Do not empty the petrol tank in enclosed areas, near fire or when smoking. 

Petrol fumes can cause explosions and fire

.

1.  Empty the petrol tank with a petrol suction pump if available.
2.  Start the engine and let it run until any remaining petrol has been used up.
3.  Change the oil at the end of every season. To do so, remove the used engine oil from a 

warm engine and refill with fresh oil.

4.  Clean the cooling fins of the cylinder and the housing.
5.  Be sure to clean the entire machine to protect the paint.
6.  Store the machine in a well-ventilated place.

Summary of Contents for Y2GMB41PC00

Page 1: ...GMB41PC00 PETROL LAWNMOWER 125cc 41cm Service centre SUMEC UK Unit A B Escrick Business Park Escrick York YO19 6FD Helpline 01904 727513 Email support yardforce co uk www yardforce co uk Original Operating Manual ...

Page 2: ...ation 12 Storing and Maintenance 17 Troubleshooting 22 Declaration of Conformity 23 Read this manual carefully prior to assembling and operating the lawnmower It is dangerous to operate this product without being familiar with these instructions Keep this manual in a safe place and have it ready for future reference Y2GMB41PC00 Operating Manual ...

Page 3: ...essories E Manual WARNING If any parts are damaged or missing do not operate this tool until the missing parts are replaced Failure to heed this warning could result in serious personal injury NOTE Always recycle the packaging in accordance with local recycling schemes WARNING This item requires a two person lift to remove from the packaging Make sure that you have sufficient space to put the lawn...

Page 4: ...e using the lawnmower read the instruction manual carefully This particularly applies for the safety notes Failure to heed this instruction manual may result in severe injury or damage to the lawnmower The instruction manual is based on the standards and rules in force in the European Union Store the instruction manual for future use If you pass the lawnmower on to third parties please ensure to i...

Page 5: ...d do not attempt to start the engine but move the machine away from the area of spillage and avoid creating any source of ignition until petrol vapours have dissipated replace all fuel tank and container caps securely Replace faulty silencers Prior to use visually inspect to see that the blade blade bolts and cutter assembly are not worn or damaged Replace worn or damaged blades and bolts in sets ...

Page 6: ...mplete stop before refueling ENVIRONMENTAL PROTECTION Dispose of soiled maintenance material and operating material at the appropriate collection point Recycle packaging material metal and plastics SAFETY INFORMATION Install the handle 1 Attach the lower handle onto the unit by using one bolt and one hand tension knob on each side see Fig 3 2 Install the upper handle onto the lower handle by using...

Page 7: ...ower height stop the engine and wait for the mower blade to stop completely 1 Pull the lever towards the wheel then move it forward or backward to adjust the cutting height 2 Move it to any one of the 7 positions for the desired cutting height see fig 8 3 Return lever into securing plate NOTE Never use the lowest cutting height for the first cut of the season or in drought conditions Only about on...

Page 8: ...cap 3 Then remove the dipstick and check the oil level The oil level must be between the Min and Max marks on the dipstick If near the lower level fill to upper lever with the recommended oil Do not overfill Wipe away any spilt oil 4 Align the ribs of the cap with the groove of the filler neck Then rotate 1 4 turn to secure it OPERATION Filling with engine fuel see Fig 10 Fig 10 OPERATION CAUTION ...

Page 9: ... fails to start after three pulls repeat the process Fig 12 1 2 OPERATION 3 Once the engine is running put the starter rope into the rope guide 4 Release the engine start stop lever it will return to its initial position the engine will automatically switches off Starting procedure quick guide 1 Press the primer bulb A 3 5 times 2 Start Stop Bar Activation 3 Pull cord handle Mowing WARNING Always ...

Page 10: ...ee of any residual grass 6 Remove any such residue 7 Check the underside of the lawnmower and the blade mount For this purpose tilt the lawnmower onto its left side opposite the oil filler neck Maintenance of the spark plug 1 Once the engine has cooled pull off the spark plug boot with a twist 2 Remove the spark plug using a spark plug wrench 3 Clean the spark plugh with a wire brush 4 Using a fee...

Page 11: ...ly tighten the bolt Do not over tighten The up turn of the blade must project into the motor compartment NOTE The blade carrier is designed to break under heavy blade impact to protect the machine if this happens also replace the blade carrier This can be purchased from www yardforce co uk If you are unsure about performing this operation call our helpline or go to an authorised dealer to change t...

Page 12: ... has been purchased within the warranty period as described under point 1 from the retailer that it was originally bought from Please keep your receipt safe or staple it to the back of this manual for future reference 3 Our warranty covers problems caused by material or manufacturing defects and will result in the repair of these defects or replacement of the device with a like for like or similar...

Page 13: ... that any improper repairs will also invalidate the warranty and additional costs may be incurred Use only genuine spare parts Only these spare parts are designed and suitable for the product The use of other spare parts not only voids the warranty you can also endanger yourself and your environment Fault malfunction Cause Remedy Loud while running machine vibrates heavily Screws are loose Check s...

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