Stiga Lawn Mower 51 S User Manual

D
DEUTSCH  
TORNADO  
8211-0225-08  
 
S
SVENSKA  
9.  
10.  
11.  
12. LS 45  
0,75 mm  
13. XTE 60  
14.  
40 Nm  
15.  
16.  
4
 
S
SVENSKA  
17.  
5
 
GB  
ENGLISH  
SYMBOLS  
USING THE MOWER  
The following symbols are displayed on the ma-  
chine in order to remind you about the safety pre-  
cautions and attention necessary when using the  
machine. The symbols mean:  
BEFORE STARTING  
FILL THE CRANKCASE WITH OIL  
The lawn mower is delivered without any  
oil in the motor crankcase. The crank-  
case must, therefore, be filled with oil be-  
fore the motor is started the first time.  
Warning! Read the Instruction Book and  
Safety Manual before using the machine.  
Remove the oil dipstick (fig. 3,4). Fill the engine's  
crankcase with 0.6 litres of good quality oil (serv-  
ice class SE, SF or SG) Use SAE 30 or SAE 10W-  
30 oil.  
Warning! Keep spectators away. Beware  
of objects being flung out.  
Fill until the oil reaches the “FULL/MAX” mark  
on the dip stick. Do not fill with too much oil.  
Warning! Do not put hands or feet under  
the cover of the machine when it is run-  
ning.  
CHECKING THE OIL LEVEL  
Check before using the machine that the oil level is  
between “FULL/MAX” and “ADD/MIN” on the  
dipstick.  
Warning! Before starting any repair work,  
remove the spark plug cable from the  
spark plugs.  
Remove and dry the dipstick (fig. 3,4). Slide it  
down completely and tighten it. Unscrew and pull  
it up again. Read-off. If the oil level is low, fill with  
oil up to the “FULL/MAX” mark.  
IMPORTANT  
FILL UP THE PETROL TANK  
Certain models do not have a throttle. The motor  
speed is set for optimal function and minimal ex-  
haust emissions.  
Fill with petrol before starting the mo-  
tor. Never remove the filler cap or fill  
with petrol while the motor is running  
or still warm.  
ASSEMBLING  
Never fill the fuel tank completely full but allow a  
little room for the petrol to expand.  
EJECTION SHIELD  
Always use pure unleaded petrol. You must never  
use 2-stroke petrol mixed with oil.  
Under no condition must the machine be  
started without the ejection shield being  
fitted on the machine. If it is not fitted,  
stones and other flying objects may eas-  
ily be ejected by the rotating blade.  
Note that you should always remember that petrol  
is a perishable commodity. Never buy more petrol  
than what you can use up in 30 days.  
STARTING THE ENGINE  
Fit the ejection shield in the holes on the chassis  
with the help of two nuts. Tighten the nuts fully  
(fig. 1).  
Keep hands and feet well away from the  
rotating blade(s). Never put your hand  
or foot under the blade casing or in the  
grass evacuation unit while the motor is  
running.  
HANDLEBAR  
Move the upper part of the steering handle up-  
wards and tighten the locking knobs (fig. 2). The  
height of the handle can be adjusted in three differ-  
ent positions.  
1. Place the lawn mower on flat, firm ground. Do  
not start in high grass.  
2. Make sure the spark plug lead is connected to  
the spark plug.  
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GB  
ENGLISH  
3. If the lawnmower is equipped with a throttle le-  
If the start/stop loop no longer works,  
stop the engine by removing the lead  
from the spark plug. Immediately take  
the lawn mower to an authorised work-  
shop for repairs.  
ver, set throttle lever N in full throttle position  
(fig. 7).  
4. When starting a cold engine: Press down the  
primer fully three times (fig. 5,6).  
CUTTING HEIGHT  
When starting a warm engine the primer does  
not need to be used. If the engine stops due toa  
lack of petrol, refill and press down the primer  
3 times.  
Shut off the motor before adjusting the  
cutting height.  
Do not set the cutting height so low that  
the blade/blades can hit uneven ground.  
5. Press in the Start/Stop-loop H against the steer-  
ing. Note that the Start/Stop loop H must be  
kept pressed-in to prevent the engine from stop-  
ping (fig. 7).  
Avoid mowing when the grass is wet. The grass  
then sticks to the underside of the casing, giving  
poor mowing results.  
6a Manual starting: Grasp the starter handle and  
start the engine by pulling briskly on the starter  
handle.  
The mower is fitted with a single lever control for  
adjusting the cutting height. Pull the lever out-  
wards and adjust the cutting height on one of the 8  
positions to be most suitable for your lawn (fig. 8).  
6b Electric starting facility (*): Start the engine by  
turning the starter key clock-wise. Release the  
key as soon as the engine starts. Always make  
short attempts at starting to prevent discharging  
the battery.  
MAINTENANCE  
No service is to be made on the motor or  
grass cutter unit without first switching  
off the motor and removing the spark  
plug cable from the spark plug.  
7. To achieve the best cutting results, you should  
always run the engine at full-speed.  
IN/ OUT COUPLING OF THE DRIVE  
Stop the motor and remove the spark  
plug cable if the mower is to be lifted,  
e.g. with transportation.  
Engage the drive by pressing coupling clamp I  
against the steering handle. Disengage the drive by  
releasing coupling clamp I (fig. 7).  
If the machine is to be tilted the fuel tank  
must be emptied and the sparking plug  
of the engine kept upwards.  
By pressing down the handlebar so that the driving  
wheels release their grip on the ground, turning, re-  
versing, moving round trees etc. can be done with-  
out having to disengage the drive system.  
CLEANING  
STOP OF ENGINE  
After each time it is used the mower should be  
cleaned. This is particularly important on the un-  
derside of the mower casing. Wash out with the  
garden hose. The mower will then last longer and  
function better.  
The motor may be very warm immedi-  
ately after it is shut off. Do not touch the  
silencer, cylinder or cooling flanges as it  
can cause burns and injury.  
Note! High pressure washing units should not be  
used. If grass has dried on to the cutterhead casing  
it can be removed by scraping. If necessary, give  
the underside a touch of paint to prevent rusting.  
1. Release Start/Stop-loop H to stop the engine  
(fig. 7). This loop must not be disengaged (e.g.  
through fixing it in the depressed position  
against the steering), as the engine cannot be  
stopped.  
Clean the silencer and the surrounding  
area regularly to remove grass, dirt and  
flammable waste products.  
2. If the lawn mower is left unattended to, remove  
the lead from the spark plug.  
Tornado 51 SE: Remove the starter key.  
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GB  
ENGLISH  
Note that you should clean the area under the tim-  
CHANGING OIL  
ing gear casing once or twice a year. Set at the low-  
est mowing height. Slacken the screws and remove  
the timing gear casing (fig. 9). Clean with a brush  
or compressed air.  
Replace the oil when the engine is warm  
and the fuel tank is empty. Take care  
while draining as the oil is hot, this is to  
prevent burns.  
The inside of the drive wheels should be cleaned  
once a season. To clean a wheel, remove the hub  
cap, screw, washer, and wheels. Brush or blow the  
gear and the gear ring on the wheel to clean them  
from grass and dirt (fig. 10). Remount the wheel.  
Change the oil the first time after 5 hours of oper-  
ation, and subsequently after every 50 hours of op-  
eration or once a season. Remove the oil dipstick  
and allow the oil to run out into a vessel. Be careful  
not to let any oil run on to the grass.  
BATTERY (Tornado 51 SE)  
Fill with new oil: use oil of SAE 30 or SAE 10W-  
30 quality. The crankcase holds approx. 0.6 litre.  
Fill until the oil reaches the “FULL/MAX” mark  
on the dip stick.  
Electrolyte in the battery is toxic and  
corrosive. It can cause serious corrosion  
damage etc. Avoid all contact with skin,  
eyes and clothing.  
AIR FILTER  
In normal use during the season, the battery is  
charged by the engine. If the engine cannot be start-  
ed with the starter key, it may be because the battery  
is 'dead'. Connect the battery charger to the terminal  
on the battery and put on charge for 24 hours (fig.  
17). On completion of charging, connect the battery  
terminal to the terminal on the motor.  
A dirty and blocked air filter reduces the engine  
output and increases engine wear.  
Clean the filter every three months or after every  
25 hours of use, which ever occurs first. More of-  
ten if the lawn mower is used on dusty ground.  
Briggs & Stratton LS45: Carefully remove the air  
cleaner so that no dirt falls down into the carburet-  
tor (fig. 12). Take out the foam plastic filter ele-  
ment and wash it in liquid detergent and water. Dry  
the filter element. Pour a little oil on the filter ele-  
ment and squeeze it in. Refit the air cleaner.  
Note! The battery charger must not be connected  
to the engine terminal. The engine cannot be start-  
ed by using the charger as a source of power sup-  
ply, and the charger will be damaged.  
WINTER STORAGE  
Briggs & Stratton XTE 60: Loosen the screw and  
fold down the cover of the air cleaner. Carefully  
remove the filter cartridge (fig. 13). Knock it  
against a flat surface. Replace the filter cartridge  
with a new one if it is still dirty.  
Store the lawn mower for the winter with the bat-  
tery well-charged in a dry and cool place (between  
0° C and +15° C). At least once during the winter  
storage period the battery should be maintenance-  
charged. Before the start of the season the battery  
should be charged once again for 24 hours.  
SPARKING PLUG  
Never remove the spark plug or the igni-  
tion lead when checking to see if there is  
any spark, always use an approved test  
instrument.  
COOLING SYSTEM  
Before use, the engine's cooling system should be  
cleaned. Clean the cylinder's cooling fins and the  
air intake, removing any grass cuttings, dirt and the  
like.  
Clean the sparking plug regularly (every 100 hours  
running). Use a wire brush for cleaning and adjust  
the correct spark gap 0,75 mm (fig. 14).  
LUBRICATION  
Change the sparking plug if the electrodes are ex-  
cessively burnt or if the plug is damaged. The rec-  
ommendations of the engine manufacturers are as  
follows:  
Set at the lowest mowing height. Slacken the  
screws and remove the transmission casing (fig. 9).  
Lubricate the driveshaft by the plastic bushings/  
slide bearings I with oil or oil spray at least once a  
season (fig. 11).  
Champion J19LM (RJ19LM) or another equiva-  
lent spark plug ought to be used in Briggs & Strat-  
ton engines.  
9
 
GB  
ENGLISH  
When replacing the blade, the blade holder and  
blade screw, always use original spare parts. Non-  
authentic spare parts could lead to the risk of per-  
sonal injury or damage, even if they fit the machine.  
ADJUSTMENT OF THE CLUTCH WIRE  
If the drive cannot be engaged or disengaged, it  
may be that the clutch wire needs adjusting.  
Adjust as follows:  
SHARPENING OF THE BLADES  
1. Remove the transmission cover by unscrewing  
the screws S (fig. 9).  
Sharpening of the blades must be done by wet  
method grinding, using a whetstone or a grind-  
stone.  
2. When the clutch loop is released it should be  
possible to pull the mower backwards without  
any resistance. If this is not the case, loosen the  
locking nut U and screw in the nipple T until the  
mower can be moved backwards (fig. 15).  
For the sake of safety, the blades should not be  
sharpened on an emery wheel. A very high temper-  
ature could cause the blade to become brittle.  
Once the blade has been sharpened, it  
must then be balanced so as to avoid vi-  
bration damage.  
3. When the clutch loop is  
pressed in approx. 2 cm (posi-  
tion 1) there should be some  
resistance when moving the  
mower backwards. With the  
clutch loop fully pressed in  
(position 2) it should not be  
possible to pull the mower  
backwards. Loosen the lock-  
ing nut U and screw out the  
nipple T until this position is  
achieved.  
STORAGE  
WINTER STORAGE  
Empty the fuel tank. Start the engine and let it run  
until it stops. The same petrol must not remain in  
the tank for more than one month.  
Tip up the mower and screw out the sparking plug.  
Pour a teaspoon of engine oil in the sparking plug  
hole. Pull out the starting handle slowly so that the  
oil is distributed in the cylinder. Screw in the  
sparking plug.  
4. Finally tighten the locking nut U.  
CHANGING BLADES  
Use protective gloves to prevent cuts  
when changing blades/knifeblades.  
Thoroughly clean the mower and store it indoors in  
a dry place.  
Blunt and damaged blades tear off the grass and  
spoil the look of the lawn after mowing.New, well  
sharpened blades cut the grass cleanly, so that the  
lawn looks green and fresh even after mowing.  
Always check the blade after an impact. First dis-  
connect the ignition cable. If the blade system has  
been damaged the defective parts must be  
changed. Always use genuine spare parts.  
To replace the blade, slacken the screw (fig. 16).  
Fit the new blade so that the stamped STIGA log-  
otype is turned facing the blade attachment (and  
not facing the grass). Refit the washer and screw.  
Tighten the screw fully to a torque of 40 Nm.  
When replacing the blade, the blade screw should  
also be replaced.  
The guarantee does not cover damage to the blade,  
blade holder or engine caused by running into ob-  
stacles.  
10  
 

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