Use
Warning! Let the appliance work at its own pace. Do not overload.
Adjusting the height of cut (fig. E)
The height of cut is adjusted by the central height adjust mechanism.
Warning! Disconnect the appliance from the mains and wait until the blade has stopped rotating before proceeding. 
Set the wheels to the desired height setting with the
height adjustment lever (7).
Switching on and off
Switching on
Hold the handle with both hands and tilt it slightly downwards to raise the front of the appliance.
Keep the
Release the
Let the appliance return to its working position.
Switching off
PTo switch the appliance off, release the on/off switch
(2).
Warning! Never attempt to lock a switch in the on position.
Mowing (fig. F & G)
We recommend to use your mower as outlined in this section in order to achieve optimum results and to reduce the risk of cutting the mains cable.
Place the bulk of the mains cable on the lawn, close to the starting point (position 1 in fig. F).
Switch the appliance on as described above.
Proceed as shown in fig. F.
Move from position 1 to position 2.
Turn right and proceed towards position 3.
Turn left and move towards position 4.
Repeat the above procedure as required.
Warning! Do not work towards the cable as shown in fig. G.
Emptying the grass bag
When you see loose grass scattering from beneath the mower, empty the grass bag.
Warning! Never use the appliance without the grass bag.
Carrying the mower (fig. H)
Warning! Disconnect the appliance from the mains and wait until the blade has stopped rotating before proceeding. 
The mower can be carried using the convenient carry
handles (9).
ENGLISH
Hints for optimum use
If the grass is longer than approximately 10 cm, make two cuts to obtain a better finish. First mow at maximum height of cut, then use a low or medium height of cut.
In order to achieve optimum results, only mow dry grass.
Maintenance
Your Black & Decker appliance has been designed to operate over a long period of time with a minimum of maintenance. Continuous satisfactory operation depends upon proper appliance care and regular cleaning.
Keep the appliance clean and dry.
Regularly clean the ventilation slots with a clean, dry paint brush.
Regularly use a blunt scraper to remove grass and dirt from the appliance.
To clean the appliance, use only mild soap and a damp cloth. Never let any liquid get inside the tool and never immerse any part of the tool into liquid. Do not use any abrasive or
Blade maintenance
Regularly remove grass and dirt from the blade.
At the beginning of the gardening season, carefully examine the condition of the blade.
If the blade is very blunt, sharpen or replace the blade. If the blade is damaged or worn, fit a new blade as described below.
Replacing the blade (fig. I)
A replacement blade is available from your Black & Decker dealer.
Cat no. A6243 can be used on the GR3800. Warning! Observe the following precautions:
Disconnect the appliance from the mains and wait until the blade has stopped rotating before proceeding.
Be careful not to cut yourself. Use
Only use the specified replacement blade.
Do not remove the impeller (16) for any reason.
To replace the blade:
Turn the appliance onto its side.
Grip the blade (17) with one hand.
Use the spanner supplied to loosen and remove the blade nut (18).
Note: When fitting a blade, the text on the blade must be facing the user.
Replace the blade (17).
Refit the washer (if fitted before) and nut (18). Securely tighten the blade nut.
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