Mountfield Lawn Mower 4125M - 4155H Instructions Manual

							
8211-0412-01
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4125M - 4155H 
						

							
SVENSKA
S
J K
L
L
K
M
C
D, E
F K
I H
G
S
A
B F
GM H
I
J
D C E
K
L12
5
67
8
43
9 
						

							
SVENSKAS
1
4
7
9
10
1112
1314
2
3
56
8 
						

							
SVENSKA
S
0,7 - 0,8 mm
MAX
MIN
1516
1718
1920 
						

							
5
ENGLISHGB
GENERAL
This symbol indicates WARNING. Per-
sonal injury and/or damage to property 
may result if the instructions are not 
followed carefully.
You must read these instructions for use 
carefully, before starting up the ma-
chine.
SYMBOLS
The following symbols appear on the machine. 
They are there to remind you of the care and atten-
tion required in use.
This is what the symbols mean:Warning!
Read the instruction manual and the safety 
manual before using the machine.
Warning!
Watch out for discarded objects. Keep on-
lookers away.
Warning!
Always wear h earing protectors.
Warning!
This machine is not designed to be driven 
on public roads.
Warning!
The machine, equipped with original ac-
cessories, must not be driven in any direc-
tion on slopes with a gradient greater than 
10º.
Warning!
Risk of crushing injuries. Keep hands and 
feet well away from the articulated steer-
ing joint.
Warning!
Risk of burn injuries. Do not touch the si-
lencer/catalytic converter. 
This machine is available in two versions.
• manual transmission, designated  4125M.
• hydrostatic transmission, designated  4155H.
SAFETY INSTRUCTIONS
GENERAL
• Please read through these  instructions carefully. 
Learn all the controls and the correct use of the 
machine.
• Before use, all drivers must apply for and  receive practical training in the operation of the 
machine. Particular emphasis should be placed 
on the fact that:
a. The use of ride-on lawnmowers requires care 
and concentration.
b. On slopes, it is not  possible to control a 
sliding ride-on lawnmower by braking. The 
main reasons for losing control are insufficient 
traction, excessively high speed, insufficient 
braking, the machine not being suited to the 
task, lack of attention to the surface or incorrect 
use as a towing vehicle.
• Never let children or anyone who is not familiar  with these instructions to use the machine. 
Local regulations may im pose restrictions as 
regards the age of the driver.
• Never use the machine if others, particularly  children or animals, are in the vicinity.
• Remember that the driver is responsible for  accidents that happen to other people or their 
property.
• Do not let children or other passengers to ride  with you on the machine. They might fall off 
and be seriously injured, or they might prevent 
the machine being driven safely.
• Do not use the machine if you are under the  influence of alcohol, drugs or medication. 
Neither should you use it when you are tired or 
feeling unwell.
PREPARATIONS
• Wear strong shoes and long trousers when using the machine. Do not operate it barefoot or 
wearing sandals.
• Wear appropriate clothing when using the  machine. Do not wear  loose, hanging clothes, 
jewellery, scarves, ties, etc., which can get 
caught in rotating parts. Tie up long hair.
• Carefully check the area that is to be cut/cleared  
						

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of snow. Remove all loose stones, sticks, steel 
wire and other foreign objects which the 
machine could throw out.
• Warning – Petrol is highly inflammable.
a. Always store petrol in containers that are 
made especially for this purpose.
b. Only fill or top up with petrol outdoors, and 
never smoke when filling or topping up.
c. Fill with petrol before starting the motor. 
Never remove the filler cap or fill with petrol 
while the engine is running or still warm.
d. If petrol is spilt, do not try to start the engine 
but instead move the machine away from the 
place where the spillage occurred and avoid any 
possible causes of sparks until the petrol fumes 
have evaporated.
e. Do not forget to screw the cap on the petrol 
tank and the storage container after filling.
• Replace faulty silencers.
• Before use, always check that blades and 
mounting devices are not worn or damaged. 
Replace worn or damage parts as a set so that 
the correct balance is maintained.
• The battery (on electrically started machines) 
gives off explosive gases. Keep sparks, flames 
and cigarettes away. Ensure there is sufficient 
ventilation during charging.
• The battery contains toxic material. Do not 
damage the battery casing. If the casing is 
damaged, avoid contact with the content of the 
battery.
• Do not throw out old, defective batteries with 
the rubbish. Contact the local authorities for 
correct waste management.
• Do not short circuit the battery. Sparks occur 
which can result in fire.
DRIVING
• Start the engine according to the instructions in 
the user guide. Keep your feet away from the 
blades.
• Do not run the engine in confined areas where 
hazardous carbon monoxide gases can collect.
• Only use the machine in daylight or where there 
is good lighting.
• Always use hearing protectors.• Take care when approaching obstacles which 
obscure your vision.
• Always keep children away from the machine’s 
working area. Get another adult to keep the 
children under supervision.
• Take care when reversing. Look behind you 
both before and during reversing to check for 
any obstacles. Look out for small children.
• Disengage the blade(s) and the connection 
before starting the engine.
• Never have your hands or feet near or under 
rotating parts. Watch out for the blades. Do not 
stand right in front of the discharge opening.
• Avoid using the machine on wet lawns.
• Be careful when driving on slopes. No sudden 
starting or stopping when moving up or down a 
slope.
• Release the clutch pedal slowly. Always drive 
with the gear engaged, and do not disengage 
when driving down slopes.
• Never cut across a slope. Move from the top 
down, and from the bottom to the top.
• Use low acceleration when engaging the drive, 
especially in long grass. Reduce the speed on 
slopes and when making sharp turns to prevent 
the machine from tipping over or you losing 
control of the machine.
• Watch out for holes in the ground and other 
hidden dangers.
• Do not drive too near ditches or high edges.  
The machine can turn over if a wheel drives 
over the edge or the edge breaks.
• Take care when towing and when using heavy 
equipment.
a. Only use an approved towing device.
b. Limit the load so that it can be controlled 
safely.
c. Do not make any sudden turns. Take care 
when reversing.
d. Use wheel weights or front weight when 
recommended in the user instructions.
• Look out for traffic at crossings or when driving 
near roads.
• Stop the blade(s) when crossing a surface other 
than grass during mowing. 
						

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• When using any of the accessories, never direct 
the discharge at somebody standing beside it, 
and do not allow anyone to stand near the 
machine when it is running.
• Never operate the machine with insufficient 
protection or without the safety devices in 
place.
• Existing safety devices may not be 
disconnected or disengaged. Check that the 
safety devices work each time before using the 
machine.
• Do not alter the engine’s regulator setting and do 
not race the engine. The danger of personal injury 
increases when the engine is run at high revs.
• Do not touch engine components which become 
warm during use. Risk of burn injuries.
• Do not leave the driving seat without:
a. Disengaging the power take-off and lowering 
the accessories.
b. Putting the gear in neutral and activating the 
parking brake.
c. Stopping the engine and removing the key.
• Only use accessories that are approved by the 
machine’s manufacturer.
• The machine may not be used without 
accessories/tools being installed in the 
machine’s tool mounts. Driving without 
accessories can have a negative effect on the 
stability of the machine.
• Take care when using grass collectors and other 
accessories. These can alter the machine’s 
stability. Particularly on slopes.
• Disengage the drive to the accessories, shut off 
the engine and disconnect the spark plug cable 
or remove the starter key:
a. To remove sticks and rubbish or when the 
discharge has become clogged.
b. To check, clean or service the machine.
c. To check whether damage has occurred and 
to carry out any repairs before starting and 
using the machine again after a collision with a 
foreign object.
d. To check the machine if it begins to vibrate 
excessively. (Check immediately).
• Disengage the drive to accessories during transport or when the machine is not in use.
• Shut off the engine and disconnect the drive to 
the accessories:
a. Before filling with petrol.
b. Before removing the grass collector.
c. Before adjusting the height setting, assuming 
this cannot be done from the driver’s position.
• Reduce the acceleration when the engine is to 
be stopped, and if the engine is equipped with a 
fuel shut-off valve, this should be switched off 
when the work is finished.
• Take care with multiple blade decks as one 
rotating blade can cause other blades to rotate. 
• The machine, equipped with original 
accessories, must not be driven in any direction 
on slopes with a gradient greater than 10º.
• The cutting deck’s original blade(s) may not be 
replaced with non-original devices intended for 
e.g. moss scarification. If such devices are used, 
the guarantee will cease to be valid. There is 
also a risk of serious injury or damage to people 
or property. 
• Take care when unloading and loading the 
machine onto a trailer or lorry.
MAINTENANCE AND STORAGE
• Tighten all nuts and screws so that the machine 
is in safe working condition.
• At regular intervals check that the cutting 
deck’s blade screw(s) are properly tightened. 
• Regularly check the operation of the brakes. It 
is important to maintain and repair the brakes if 
necessary. 
• Never store the machine with petrol in the tank 
in buildings where the fumes can come into 
contact with open flames or sparks.
• Allow the engine to cool before placing the 
machine in a store.
• To reduce the risk of fire, keep the engine, 
silencer, battery and petrol tank free from grass, 
leaves and surplus oil.
• Check frequently whether there is any wear or 
damage to the grass collector.
• For the sake of safety, replace worn or damaged 
parts. 
						

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• Always use genuine spare parts. Non-genuine 
spare parts can entail a risk of injury, even if 
they fit the machine.
• Replace damaged warning and instruction 
stickers.
• If there is no mechanical lock for the transport 
position, the cutting deck must be lowered 
when parked, stored or when the machine is left 
unsupervised. 
• If the petrol tank is to be emptied, this must take 
place outdoors.
• Store the machine so that children cannot get to it.
STORAGE
Empty the petrol tank. Start the engine and let it 
run until it stops.
Replace the oil while the engine is still warm. 
Unscrew the spark plug and pour a tablespoonful 
of oil into the cylinder. Rotate the engine a few 
turns to that the oil is distributed in the cylinder. 
Install the spark plug. 
Clean the entire machine. It is particularly 
important to clean under the cutting deck. Touch 
up paint damage to prevent rust.
Store the machine indoors in a dry place.
Machines with an electric starter:
Remove the battery. Store it well charged in a cool 
place (between 0°C and +15°C). 
At the correct storage temperature, the battery 
should be maintenance-charged every four 
months.
The battery acid is extremely corrosive 
and can cause injuries and damage to 
skin and clothing. Always use rubber 
gloves and glasses (goggles) to protect 
your eyes. Avoid inhaling any acid 
vapour.
Do not incline the battery too much so 
that the battery acid can run out onto 
hands or clothing. If this should 
happen, rinse with plenty of water.
ASSEMBLY
To avoid injury and damage to people 
and property, do not use the machine 
until all the measures under “ASSEM-
BLY” have been carried out.
ACCESSORIES BAG
The machine is supplied with a plastic bag contain-
ing components which must be installed prior to 
use. The bag contains (fig. 1):
Pos. No. Designation Dimension
A 1 Spark plug sleeve
B 1 Torsion pin ditto
C 1 Tension pin 6 x 36
D 1 Shim washer 16 x 38 x 0.5
E 1 Shim washer 16 x 38 x 1.0
F 2 Shoulder washer
G 2 Screw 8 x 20
H 2 Wing nut
I 2 Washer 8.4 x 22 x 1.5
J 1 Drawing plate
K 4 Screw 8 x 20
L2 Nut
M 1 Gear lever (not HST)
Spare key
ENGINE CASING
To fill with fuel and to inspect and maintain the en-
gine and battery, open the engine casing. The en-
gine must not be running when the casing is 
opened. 
Opening:
1. Raise the seat lock (fig. 2) and fold the seat for-
wards.
2. Pull up the rubber strap at the front edge of the 
casing (fig. 3).
3. Grasp the front edge of the engine casing and 
fold up the casing (fig. 4).
Closing:
1. Grasp the front edge of the engine casing and 
fold down the casing (fig. 4).
2. Secure the front edge of the casing with the rub-
ber strap (fig. 3).
BATTERY
The battery is a valve-regulated battery with 12 V 
nominal voltage. The battery is completely main- 
						

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tenance free. You don’t have to check or top up the 
electrolyte level.
On delivery, the battery is in the accessories box.
The battery must be fully charged be-
fore being used for the first time. The 
battery should always be stored fully 
charged. If the battery is stored while 
totally flat it could sustain permanent 
damage. 
If the machine is not going to be used for an ex-
tended period (more than 1 month), the battery 
should be charged, disconnected and then stored in 
a cool, safe place. Charge the battery completely 
before reinstalling.
The battery can be charged in two ways:
1. Via a battery charger (recommended). This must 
be a charger with constant voltage. The battery 
can be damaged if a standard type battery 
charger (for acid batteries) is used. 
2. You can also allow the engine to charge the bat-
tery. In this case it is very important, above all 
when starting the machine for the first time and 
when it has not been used for a long time, to al-
low the engine to run continuously for at least 
45 minutes.
Do not short circuit the battery’s termi-
nals. Sparks occur which can result in 
fire. Do not wear metal jewellery which 
can come into contact with the battery 
terminals.
In the event of damage to the battery 
casing, cover, terminals or interference 
to the strip covering the valves, the bat-
tery should be replaced.
Position the battery in the appropriate place under 
the engine casing, secure with the battery belt and 
connect the battery cables (fig. 5). 
NOTE! To avoid damage to the engine and the bat-
tery, the positive battery cable (+) should always 
be connected to the battery first.
Do not run the engine when the battery is dis-
connected.
SEAT
Install the seat on the seat bracket (fig. 6).
In the rear holes, the screws K should be used 
along with the shoulder washers F. Tighten the 
screws.Then place the wing nuts H with the two screws G 
and washers I in the front holes. 
The seat can be moved backwards or forwards. 
Place the seat in the desired position and then tight-
en the wing nuts properly.
The seat can be folded. If the machine is parked 
outside when it is raining, fold the seat forward to 
protect the seat cushion from getting wet.
The seat is locked. To fold the seat up or down, 
first lift up the catch S (fig. 6).
STEERING WHEEL
In order to compensate for any axial play, the shim 
washers D and/or E should be used.
First check whether and if so how many shim 
washers are required.
Then install the steering wheel by knocking in the 
tension pin C (fig. 7).
GEAR LEVER (4125M)
Screw the gear lever M into the threaded hole by 
the steering wheel. Grip using an adjustable 
wrench, for example, and tighten firmly (fig. 8).
DRAWING PLATE
Screw the drawing plate J into the two holes on the 
joist using the screws K and nuts L (fig. 9). Tight-
en the screws properly.
TYRE PRESSURE
Check the air pressure in the tyres. Correct air 
pressure:
Front: 0.6 bar (9 psi), Rear: 0.4 bar (6 psi)
ACCESSORIES
For the installation of accessories, see separate in-
stallation guide supplied with each accessory.  
						

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CONTROLS AND 
INSTRUMENTS
Items 1 - 9, see figures 1 - 3.
1. IMPLEMENT LIFTER
A pedal for raising a front-mounted implement to 
the transport position. 
To lift up the implement, press the pedal down as 
far as it will go. Then release the pedal, the imple-
ment lifter is now locked in the raised position.
To lower the implement, press the pedal down so 
that the lock is released. Lower the implement lift-
er to the working position by slowly lifting your 
foot from the pedal.
2A. SERVICE BRAKE/CLUTCH 
(4125M)
A pedal that combines both service brake and 
clutch. There are 3 positions:
1. Pedal released – forward drive 
engaged. The machine will 
move if a gear is engaged. Serv-
ice brake not activated.
2. Pedal depressed halfway – 
forward drive disengaged, gear 
shifting can be performed. Serv-
ice brake not activated.
3. Pedal fully depressed – for-
ward drive disengaged. Service 
brake fully activated.
NOTE! You must never regulate the operating 
speed by slipping the clutch. Use a suitable gear in-
stead, so that the right speed is obtained.
2B. SERVICE BRAKE (4155H)
A pedal that acts on the machine’s braking system. 
There are 3 positions:
1. Pedal released – service brake 
not activated.
2. Pedal depressed halfway – 
forward drive disengaged. Serv-
ice brake not activated.
3. Pedal fully depressed – for-
ward drive disengaged. Service 
brake fully activated.
3. PARKING BRAKE
An inhibitor that can lock the brake pedal in the de-
pressed position. 
Depress the brake pedal fully. Raise the 
inhibitor and then release the brake pedal.
The parking brake is released by pressing the brake 
pedal. The spring-loaded inhibitor slides to one 
side. 
Make sure that the parking brake is released when 
operating the machine. 
4. DRIVE PEDAL (4155H)
A pedal that activates the variable transmission.
1. Depress the pedal with the 
ball of your foot – the machine 
moves forwards.
2. No load on the pedal – the ma-
chine is stationary.
3. Depress the pedal with your 
heel – the machine reverses.
The drive pedal regulates the speed. The more 
pressure applied, the faster the machine will move.
5. THROTTLE/CHOKE CONTROL
A control for setting the engine speed and to choke 
the engine when starting from cold. 
1. Choke – for starting a cold engine. The 
choke is located in the top of the groove. 
Avoid operating the machine in this posi-
tion, taking care to move the control to full 
throttle (see below) when the engine is 
warm.
2. Full throttle – when the machine is in 
operation, full throttle should always be 
used.
3. Idling.
6. IGNITION LOCK
Ignition lock used for starting/stopping the engine. 
Four positions:
1. Stop position – the engine is short-
circuited. The key can be removed.