Stiga Lawn Mower PARK 4WD, PRO 25, PRO 20, PRO 16 PRESTIGE Instructions Manual

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1 GENERAL
This symbol indicates WARNING. Seri-
ous personal injury and/or damage to 
property may result if the instructions 
are not followed carefully.
You must read these instructions for use 
and the accompanying pamphlet 
“SAFETY INSTRUCTIONS” careful-
ly, before starting up the machine.
1.1 SYMBOLSThe following symbols appear on the machine. 
They are there to remind you of the care and atten-
tion required during use and maintenance.
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 hearing 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. 
1.2 References
1.2.1 Figures
The figures in these instructions for use are num-
bered 1, 2, 3, etc. 
Components shown in the figures are marked A, B, 
C, etc.
A reference to component C in figure 2 is written 
“2:C”.
1.2.2 Headings
The headings in these instructions for use are num-
bered in accordance with the following example:
“1.3.1 General safety check” is a subheading to 
“1.3 Safety checks” and is included under this 
heading.
When referring to headings, only the number of the 
heading is normally specified. E.g. “See 1.3.1”.
2 DESCRIPTION
2.1 DriveThe machine has 4-wheel drive. The power from 
the engine to the drive wheels is transferred hy-
draulically. The engine drives an oil pump, which 
pumps oil through the rear and front axle drives. 
The front axle and rear axle are connected in se-
ries, which means that the front wheels and rear 
wheels are forced to rotate at the same speed. 
To make turning easier, both axles are equipped 
with differential. 
Front-mounted implements are powered via drive 
belts.
2.2 SteeringThe machine is articulated. This means that the 
chassis is divided into a front and a rear section, 
which can be turned in relation to each other.
The articulated steering means that the machine 
can turn around trees and other obstacles with an 
extremely small turning radius.
2.3 Safety systemThe machine is equipped with an electrical safety 
system. The safety system interrupts certain activ-
ities that can entail a danger of incorrect manoeu-
vres. For example, the engine cannot be started if 
the clutch-parking brake pedal is depressed.
The operation of the safety system must 
always be checked every time before 
use.
2.4 Controls
2.4.1 Implement lifter, mechanical (3:C)
(Prestige, Pro16)
To switch between working position and transport 
position:
1. Depress the pedal fully. 
2. Release the pedal slowly.
2.4.2 Implement lifter, hydraulic (6:M)
(Pro20, Pro25)
The hydraulic implement lifter only 
works when the engine is running, and is 
controlled with the switch (6:M). 
The switch has the following three positions:
•Floating position. Press the front part of the 
switch. The switch locks in the pressed position 
and the implement is lowered until it reaches its 
floating position. 
Floating position means that the implement al-
ways rests with the same pressure against the 
ground and can follow the ground’s contours. 
Floating position should be used when working.  
						

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•Lifting. Press the rear part of the switch until 
the implement is in its highest position (trans-
port position). Then release the switch and the 
height is locked in transport position.
•Locking in transport position. The switch has 
reverted to neutral position after lifting. The im-
plement is locked in transport position.
NOTE! The hydraulic implement lifter must be 
in floating position in order for the power take-
off to be engaged.
NOTE! The power take-off cannot be engaged 
when the parking brake is activated.
2.4.3 Clutch-parking brake (3:B)
Never press the pedal while driving. 
There is a risk of overheating in the 
power transmission.
The pedal (3:B) has the follow-
ing three positions:
•Released. The clutch is not activated. The park-
ing brake is not activated.
•Depressed halfway. Forward drive disengaged. 
The parking brake is not activated.
•Pressed down. Forward drive disengaged. The 
parking brake is fully activated but not locked.
•
2.4.4 Inhibitor, parking brake (3:A)
The inhibitor locks the “clutch-brake” 
pedal in the depressed position. This func-
tion is used to lock the machine on slopes, 
during transport, etc., when the engine is 
not running.
The parking brake must always be re-
leased during operation.
Locking:
1. Depress the pedal (3:B) fully. 
2. Move the inhibitor (3:A) to the right.
3. Release the pedal (3:B).
4. Release the inhibitor (3:A).
Unlocking:
Press and release the pedal (3:B).2.4.5 Driving-service brake (3:F)
The pedal (3:F) determines the gearing ratio be-
tween the engine and the drive wheels (= the 
speed). When the pedal is released, the service 
brake is activated.
1. Press the pedal forward – 
the machine moves forward.
2. No load on the pedal – the ma-
chine is stationary.
3. Press the pedal backward – 
the machine reverses.
4. Reduce the pressure on the 
pedal – the machine brakes.
2.4.6 Steering wheel (3:D)
The height of the steering wheel is infinitely ad-
justable. Undo the adjustment knob (3:E) on the 
steering column and raise or lower the steering 
wheel to the desired position. Tighten.
Do not adjust the steering wheel during 
operation.
Never turn the steering wheel when the 
machine is stationary with a lowered 
implement. There is a risk of abnormal 
loads on the servo and steering mecha-
nisms.
2.4.7 Throttle and choke control (4:G) 
(Prestige)
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 position is located at the front of the 
groove. 
Do not operate in this position when the 
engine is warm.
2. Full throttle – when the machine is in 
operation, full throttle should always be 
used. 
The full throttle position is approximately 
2 cm behind the choke position.
3. Idling.
2.4.8 Throttle control (5, 6:G)
(Pro16, Pro20, Pro25)
Control for setting the engine’s revs.
1. Full throttle – when the machine is in 
operation, full throttle should always be 
used. 
2. Idling. 
						

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2.4.9 Choke control (5, 6:H) 
(Pro16, Pro20, Pro25)
A pull-type control to choke the engine when start-
ing from cold.
1. Control fully pulled out – choke valve 
in carburettor closed. For starting cold en-
gine.
2. Control pushed in – choke valve open. 
For starting warm engine and when oper-
ating the machine. 
Never operate the machine with the choke 
pulled out when the engine is warm.
2.4.10 Ignition lock/headlight (4, 5, 6:I)
The ignition lock is used for starting and stopping 
the engine. The ignition lock is also the switch for 
the headlight. 
Do not leave the machine with the key 
in position 2 or 3. There is a fire risk, 
fuel can run into the engine through the 
carburettor, and there is a risk of the 
battery being discharged and damaged.
Four positions:
1. Stop position – the engine is short-cir-
cuited. The key can be removed.
2. Operating position – headlight activat-
ed.
3. Operating position – headlight not acti-
vated.
4. Start position – the electric start motor 
is activated when the key is turned to the 
spring-loaded start position. Once the en-
gine has started, let the key return to oper-
ating position 3.
Turn the key to position 2 to light the 
headlight.
2.4.11 Power take-off (4, 5, 6:K)
Switch for engaging/disengaging the electromag-
netic power take-off for operating front-mounted 
accessories. Two positions:
1. Press the front part of the switch – the 
power take-off is engaged. The symbol 
will light up.
2. Press the rear part of the switch – the 
power take-off is disengaged. 
2.4.12 Hour meter (2:P)
Indicates the number of working hours. Only 
works when the engine is running.2.4.13 Cruise control (5, 6:N)
(Pro16, Pro20, Pro25)
A switch for activating the cruise control. The 
cruise control locks the pedal (3:F) in the desired 
position.
1. Press down the pedal (3:F) until the de-
sired speed is obtained. Then press the 
front part of the switch to activate the 
cruise control. The symbol will light up.
2. Disengage the cruise control by releas-
ing it with the pedal (3:B) or pressing the 
rear part of the switch. 
2.4.14 Cutting height adjustment (5, 6:J)
(Pro16, Pro20, Pro25)
The machine is equipped with a control for using 
the cutting deck with electrical cutting height ad-
justment.
The switch is used to adjust the cutting 
height in continuously variable positions. 
The cutting deck is connected to the contact (2:Q).
2.4.15 Sand spreader (6:O) (Pro20, Pro25)
The machine has been designed for electrical ad-
justment of a sand spreader (accessory). 
The switch is used to start and stop the 
spreader.
Cables for connecting the sand spreader are at the 
rear of the machine. (Pro16 is prepared for a sand 
spreader, cables routed).
2.4.16 Clutch release lever (7:R)
A lever for disengaging the variable transmission. 
Enables the machine to be moved by hand without 
the help of the engine. Two positions:
1. Lever out – transmission en-
gaged for normal operation. 
There is an audible click when 
the lever locks in the outer posi-
tion.
2. Lever in – transmission disen-
gaged. The machine can be 
moved by hand.
The machine may not be towed over long distances 
or at high speeds. The transmission could be dam-
aged. 
2.4.17 Seat (8:S)
The seat can be folded and adjusted for-
wards and backwards. The seat’s forward/
backward position can be locked with the 
knobs (8:T).
The seat is equipped with a safety switch that is 
connected to the machine’s safety system. This 
means that certain activities that can entail danger 
cannot be carried out when nobody is sitting in the 
seat. See also 4.3.2.
12V 
						

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2.4.18 Engine casing (9:U)
In order to access the fuel cock, battery 
and engine, the machine has an engine 
casing that can be opened. The engine cas-
ing is locked with a rubber strap.
The engine casing is opened as follows:
1. Undo the rubber strap (9:V) at the front edge of 
the casing.
2. Carefully lift the engine casing back.
Close in the reverse order.
The machine may not be operated un-
less the engine casing is closed and 
locked. Risk of burns and crushing in-
juries.
3 AREAS OF USE
The machine may only be used for the following 
tasks using the genuine STIGA accessories stated.
The maximum vertical load on the towing hitch 
must not exceed 100 N.
The maximum over-run load on the towing hitch 
from towed accessories must not exceed 500 N.
NOTE! Before using a trailer – contact your insur-
ance company.
NOTE! This machine is not intended to be driven 
on public roads.
4 STARTING AND OPERATION
The machine may not be operated un-
less the engine casing is closed and 
locked. Risk of burns and crushing in-
juries.
4.1 Filling with petrolAlways use lead-free petrol. You must never use 2-
stroke petrol mixed with oil.
The tank holds 14 litres. The level can easily be 
read through the transparent tank.
NOTE! Ordinary lead-free petrol is a perishable 
and must not be stored for more than 30 days.
Environmental petrol can be used, i.e. alkylate 
petrol. This type of petrol has a composition that is 
less harmful for people and nature.
Petrol is highly inflammable. Always 
store fuel in containers that are made 
especially for this purpose. 
Only fill or top up with petrol outdoors, 
and never smoke when filling or top-
ping up. Fill up with fuel before starting 
the engine. Never remove the filler cap 
or fill with petrol while the engine is 
running or still warm.
Never completely fill the petrol tank. Leave an 
empty space (= at least the entire filler tube plus 1 
- 2 cm at the top of the tank) to allow the petrol to 
expand when it warms up without overflowing. 
See fig. 10.
4.2 Checking the engine oil levelOn delivery, the Pro 16 and Pro 20 (Briggs & Strat-
ton) are filled with SAE 30 oil.
On delivery, the Prestige and Pro 25 (Kohler) are 
filled with SAE 10W-40 oil.
Check the oil level every time before using to 
ensure it is correct. The machine should be 
standing on level ground.
Wipe clean around the oil dipstick. Un-
screw and pull it up. Wipe off the dipstick. 
Slide it down completely and tighten it. 
Then unscrew it and pull it up again. Read off the 
oil level. Top up with oil to the “FULL” mark, if 
the level comes below it. See fig. 11-13.
The oil level must never exceed the “FULL” mark. 
This results in the engine overheating. If the oil 
level exceeds the “FULL” mark, the oil must be 
drained until the correct level is achieved. Work Accessories, STIGA genuine
Mowing Using mowing decks:
107 M, 107 M HD, 107 M HD 
El, 121 M, 121 M El, 125 Combi 
Pro, 125 Combi Pro El and with 
flail mower.
Sweeping Using brush unit or collector 
brush unit. The use of a dust 
guard is recommended with the 
first option.
Snow clearance Using snow blade or snow 
thrower Snow chains and frame 
weights are recommended.
Grass clipping and 
leaf collectionUsing towed collector 30 or 
42.
Grass and leaf 
transportUsing dump cart Standard, Maxi 
or Combi.
Sand spreading Using sand spreader. Can also 
be used for spreading salt. Snow 
chains and frame weights are 
recommended.
Weeding on gravel 
pathsUsing front-mounted hoe.
Lawn edge trim-
mingUsing edge trimmer.
Moss scarification Using moss scarifier. 
						

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4.3 Safety checksCheck that the results of the safety checks below 
are achieved when testing the machine in question.
The safety checks must always be car-
ried out every time before use.
If any of the results below is not 
achieved, the machine must not be 
used! Take the machine to a service 
workshop for repair.
4.3.1 General safety check
4.3.2 Electrical safety check
The operation of the safety system 
should always be checked every time 
before use.
4.4 Start1.  Open the fuel cock. See 15.
2.  Check that the spark plug cable(s) is/are in-
stalled on the spark plug(s).
3.  Check to make sure that the power take-off is 
disengaged. 
4.  Do not keep your foot on the drive pedal. 
5. Prestige:
Starting cold engine – put the throttle control in 
the choke position. 
Starting warm engine – put the throttle control 
at full throttle (approx. 2 cm behind the choke 
position).
Pro16, Pro20 and Pro25:
Put the throttle control at full throttle. 
Starting cold engine – pull the choke control out 
fully. 
Starting warm engine – the choke control 
should be pressed in.
6.  Depress the clutch-brake pedal fully.
7.  Turn the ignition key and start the engine.
8Prestige:
Once the engine has started, move the throttle 
control gradually to full throttle (approx. 2 cm 
behind the choke position) if the choke has been 
used. 
Pro16, Pro20 and Pro25:
Once the engine has started, push the choke 
control in gradually if it has been used. 
9. When starting from cold, do not make the ma-
chine work under load immediately, but let the 
engine run for a few minutes first. This will al-
low the oil to warm up. 
When the machine is in operation, full throttle 
should always be used.
4.5 Power assisted steering 
(Pro20, Pro25)
Power assisted steering means that power from the 
machine’s hydraulic system is supplied to the 
steering wheel movements. This makes the ma-
chine very easy to steer when the engine is operat-
ing at working revs (full throttle). 
The servo effect is reduced as the engine speed 
drops. Object Result
Fuel lines and con-
nections.No leaks.
Electrical cables. All insulation intact.
No mechanical damage.
Exhaust system. No leaks at connections.
All screws tightened.
Oil lines No leaks. No damage.
Drive the machine 
forwards/back-
wards and release 
the driving-service 
brake pedal.The machine will stop.
Test driving No abnormal vibrations.
No abnormal sound.
Status Action Result
The clutch-brake 
pedal is not 
depressed.
The power take-off 
is not activated.Try to start. The engine 
will not start.
The clutch-brake 
pedal is depressed.
The power take-off 
is activated.The driver gets up 
from the seat.The engine 
will not start.
Engine running. 
The power take-off 
is activated.The driver gets up 
from the seat.The power 
take-off will 
be disen-
gaged.
Engine running. Remove fuse 10 
A.
See fig. 14.The engine 
will stop.
Cruise control acti-
vated.
(not Prestige)The driver gets up 
from the seat.The cruise 
control will 
be disen-
gaged.
Cruise control acti-
vated.
(not Prestige)The clutch-brake 
pedal is depressed.The cruise 
control will 
be disen-
gaged.
The switch for the 
implement lifter is 
in neutral position.
(not Prestige, 
Pro16)Try to engage the 
power take-off.It will not be 
possible to 
engage the 
power take-
off. 
						

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4.6 Operating tipsAlways check that there is the correct volume of 
oil in the engine. This is particularly important 
when operating on slopes. See 4.2. 
Be careful when driving on slopes. No 
sudden starting or stopping when driv-
ing up or down a slope. Never drive 
across a slope. Move from the top down 
or from the bottom to the top. 
The machine may not be driven on 
slopes greater than 10º in any direction.
Reduce the speed on slopes and when 
making sharp turns in order to retain 
control and reduce the risk of tipping 
over.
Do not turn the steering wheel to full 
lock when driving in top gear and at full 
throttle. The machine can easily topple 
over.
Keep hands and fingers well away from 
articulated steering joint and seat 
bracket. Risk of crushing injuries. Nev-
er drive with the engine casing open.
4.7 StopDisengage the power take-off. Apply the parking 
brake. 
Allow the engine to idle 1-2 mins. Stop the engine 
by turning off the ignition key.
Shut off the petrol cock. This is particularly impor-
tant if the machine is to be transported on a trailer 
for example.
If the machine is left unattended, re-
move the spark plug cable(s) and re-
move the ignition key.
The engine may be very warm immedi-
ately after it is shut off. Do not touch the 
silencer, cylinder or cooling fins. This 
can cause burn injuries.
4.8 Cleaning
To reduce the risk of fire, keep the en-
gine, silencer, battery and fuel tank free 
from grass, leaves and oil.
To reduce the risk of fire, regularly 
check the machine for oil and/or fuel 
leakage. 
Clean the machine after each use. The following 
instructions apply for cleaning:
• When washing the machine with water under 
high pressure, do not point the jet directly at 
axle seals, electrical components or hydraulic 
valves.
• Do not spray water directly at the engine. • Clean the engine with a brush and/or com-
pressed air.
• Clean the engine’s cooling air intake (11, 12, 
13:W).
• Only Pro25: Clean the oil cooler (13:X).
5 MAINTENANCE
5.1 Service programmeIn order to keep the machine in good condition as 
regards reliability and operational safety as well as 
from an environmental perspective, STIGA’s Ser-
vice programme should be followed.
The contents of this programme can be found in 
the attached service log.
Basic service
 must always be carried out by an au-
thorised workshop.
First service and intermediate service
 should be 
carried out by an authorised workshop, but can 
also be carried out by the user. The content of this 
can be found in the service log and the actions are 
described under “4 STARTING AND OPERA-
TION” as well as below.
Servicing carried out at an authorised workshop 
guarantees professional work using genuine spare 
parts.
At each basic service and intermediate service car-
ried out at an authorised workshop, the service log 
is stamped. A service log presenting these services 
is a valuable document that improves the ma-
chine’s second-hand value.
5.2 PreparationAll service and all maintenance must be carried out 
on a stationary machine with the engine switched 
off.
Prevent the machine from rolling by al-
ways applying the parking brake.
Stop the engine.
Prevent unintentional starting of the 
engine by disconnecting the spark plug 
cable(s) from the spark plug(s) and re-
moving the ignition key. 
5.3 Tyre pressureAdjust the air pressure in the tyres as follows:
Front: 0.6 bar (9 psi).
Rear: 0.4 bar (6 psi).  
						

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5.4 Changing engine oil, filter
(Pro16, Pro20)
Change engine oil for the first time after 5 hours of 
operation, and subsequently after every 50 hours 
of operation or once a season. 
Change the oil more often (after 25 hours of oper-
ation or at least once a season) if the engine has to 
operate under demanding conditions or if the am-
bient temperature is high.
The oil filter must be replaced after 100 hours of 
operation.
5.4.1 Engine oil
Use synthetic oil of service grade SF or higher in 
accordance with the table below.
Use oil without any additives.
Do not fill with too much oil. This can cause the 
engine to overheat. 
Change oil when the engine is warm.
The engine oil may be very hot if it is 
drained off directly after the engine is 
shut off. Therefore allow the engine to 
cool a few minutes before draining the 
oil.
1.  Attach the clamp on the oil drainage hose. Use 
a polygrip or similar. See fig. 17:Y.
2.  Move the clamp up 3-4 cm on the oil drainage 
hose and pull out the plug.
3. Collect the oil in a collection vessel.
NOTE! Do not spill any oil on the drive belts.
4. Hand in the oil for disposal in accordance with 
local provisions.
5. Install the oil drainage plug and move the clamp 
back so that it clamps above the plug.
6. If the oil filter is to be replaced, see 5.4.2 below 
before continuing.
7.  Remove the dipstick and fill up with new oil.
Oil volume:
Without filter replacement:approx. 1.6 litres
With filter replacement:approx. 1.7 litres
8. After filling up the oil, start the engine and idle 
for 30 seconds. 
9. Check to see if there is any oil leakage.
10.Stop the engine. Wait for 30 seconds and then 
check the oil level in accordance with 4.2.5.4.2 Oil filter
The oil filter must be replaced during every second 
oil change, i.e. after 100 hours of operation. First 
drain the engine oil and install the oil drainage plug 
as described above. Then replace the oil filter as 
follows:
1. Clean the area around the filter and dismantle 
the filter.
2. Moisten the new filter’s gasket with oil.
6. Install the filter. First screw in the filter so that 
the gasket comes into contact with the engine. 
Then screw in the filter a further 1/2-3/4 turn.
7. Continue with point 7 in accordance with 5.4.1 
Engine oil above.
5.5 Changing engine oil, filter
(Prestige, Pro25)
The engine oil must be changed after 100 hours of 
operation. 
The oil filter must be replaced after 200 hours of 
operation.
5.5.1 Engine oil
Use synthetic oil of service grade SF or higher in 
accordance with the table below.
Use oil without any additives.
Do not fill with too much oil. This can cause the 
engine to overheat. 
Change oil when the engine is warm.
The engine oil may be very hot if it is 
drained off directly after the engine is 
shut off. Therefore allow the engine to 
cool a few minutes before draining the 
oil.
1.  Attach the clamp on the oil drainage hose. Use 
a polygrip or similar. See fig. 16:Y and 18:Y.
2.  Move the clamp up 3-4 cm on the oil drainage 
hose and pull out the plug.
3. Collect the oil in a collection vessel.
NOTE! Do not spill any oil on the drive belts.
4. Hand in the oil for disposal in accordance with 
local provisions.
5. Install the oil drainage plug and move the clamp 
back so that it clamps above the plug.
6. If the oil filter is to be replaced, see 5.5.2 Oil fil-
ter below before continuing.
7. Remove the dipstick and fill up with new oil. Use Oil
All temperatures SAE 10W-30
Below -18°C SAE 5W-30
Above 0°C SAE 30
Use Oil
All temperatures SAE 10W-30
Below -18°C SAE 5W-30
Above 0°C SAE 30 
						

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Oil quantity:
8. Start the engine and check for oil leaks.
9. Stop the engine. Wait a few minutes until all the 
oil has run back into the crankcase.
10.Check the oil level in accordance with 4.2.
5.5.2 Oil filter
The oil filter must be replaced during every second 
oil change, i.e. after 200 hours of operation. First 
drain the engine oil and install the oil drainage plug 
as described above. Then replace the oil filter as 
follows:
1. Clean the area around the filter and dismantle 
the filter.
2. Place the new filter with the hole facing up-
wards in a vessel.
3. Fill up with the new engine oil through the hole 
in the filter until the level reaches the bottom of 
the thread.
4. Wait 1-2 minutes so that the oil is absorbed by 
the filter material.
5. Moisten the filter’s gasket with oil.
6. Install the filter. First screw in the filter so that 
the gasket comes into contact with the engine. 
Then screw in the filter a further 2/3-1 turn.
7. Continue with point 7 in accordance with 5.5.1 
Engine oil above.
5.6 Fuel filterPro 16 and Pro 20 (Briggs & Stratton)Replace the fuel filter every season. See fig. 17:Z.
Prestige and Pro 25 (Kohler)
Replace the fuel filter after 1,500 hours of opera-
tion. See fig. 23:Z.
Check for fuel leaks once the new filter has been 
installed.
5.7 Transmission, oil filterThe oil and the filter in the hydraulic power trans-
mission must be checked/adjusted or replaced at 
intervals according to the table below.
Oil type: Synthetic oil 5W-50.
Oil volume at change: approx. 4.2 litres.5.7.1 Check – adjustment
1. Place the machine on a flat surface.
2. Read off the oil level in the reservoir. See fig. 
19. The level should be level with the line. 
3. If necessary, top up with more oil.
5.7.2 Draining
1. Operate the machine at varying speeds for 10-
20 minutes in order to warm up the transmission 
oil.
2. Drive the machine up onto a block or similar so 
that the right rear wheel is raised approximately 
10 cm above the left rear wheel. See fig. 20. 
Otherwise the machine should be on a level sur-
face. This measure allows the oil to run out of 
the reservoir more easily.
3. Open the drive shafts’ valves in accordance 
with fig. 21.
4. Place one collection trough under the rear axle 
and one under the front axle.
5. Remove 2 drainage plugs from each axle. Use a 
12 mm socket wrench. See fig. 22.
6. Remove the filler cap from the oil tank.
7. Only Pro20 and Pro25: Clean the area around 
the hydraulic circuit’s filter and dismantle the 
filter. See fig. 18:A.
8. Allow all the oil to run out into the collection 
trough.
9. Hand in the oil for disposal in accordance with 
local provisions.
5.7.3 Cleaning tank filter
1. Press the filter casing (25:F)down into the up-
per section of the tank and move the casing for-
wards to the hole.
2. Pull up the filter casing together with filter and 
spring.
3. Pull the filter (25:G) out of the casing.
4. Clean the filter with a suitable solvent and com-
pressed air.
5. Check that the rubber gasket (25:H) in the bot-
tom of the filter is intact.
6. Reinstall the filter and spring in the casing. In-
sert the filter until it snaps into position in the 
casing.
7. Reinstall the unit in the tank. The upper part of 
the filter casing must snap into position in the 
slot in the upper section of the tank. Machine Oil volume, approx.
No filter 
replacementFilter replace-
ment
Prestige 1.9 litres 2.0 litres
Pro25 2.0 litres 2.1 litres
Action1st time Then at 
interval
Hours of operation
Check – adjusting level. - 50
Changing oil.
Cleaning tank filter.5 200
Replace filter in the hydrau-
lic circuit. Pro20, Pro255 200 
						

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ENGLISHEN
5.7.4 Filling
1. Check that the gaskets on the 4 drainage plugs 
are intact. See fig. 22. Reinstall the plugs. Tight-
ening torque: 15-17 Nm.
2. Roll the machine down so that the right rear 
wheel is level with the other wheels.
3. Only applies to Pro20 and Pro25:
Moisten the new filter’s gasket with oil and in-
stall the filter. See fig. 18:A.
4. Fill the oil reservoir with the new oil.
5. Check that the clutch release lever (7:R) is in 
the outer position (drive position).
If the engine is to be run indoors, an ex-
haust extraction device must be con-
nected to the engine’s exhaust pipe.
6. Prepare a suitable vessel with the new oil.
NOTE! The oil is sucked into the system very 
quickly. The reservoir must always be kept 
topped up. Under no circumstances may air 
be sucked in.
7. Fill the oil reservoir with new oil.
8. Start the engine and allow it to idle. Gradually 
top up the oil in the reservoir so that the level 
constantly reaches the mark.
9. Reinstall the oil filler cap and close the engine 
casing.
10.Reset the drive shafts’ valves in accordance 
with fig. 24.
11.Drive the machine 8-10 metres forwards and 8-
10 metres backwards. If the machine has hy-
draulic power assisted steering, apply full steer-
ing lock at the same time.
12.If the machine has a hydraulic implement lifter, 
raise and lower the lifter 3-4 times.
13.Adjust the oil level in the reservoir.
5.8 Belt transmissionsAfter 5 hours of operation, check that all the belts 
are intact and undamaged.
5.9 SteeringThe steering must be checked/adjusted after 5 
hours of operation and thereafter after 100 hours of 
operation.
5.9.1 Checks
Briefly turn the steering wheel back and forth. 
There must be no mechanical clearance in the 
steering chains.5.9.2 Adjustment
Adjust the steering chains if required as follows:
1. Put the machine in the straight-ahead position.
2. Adjust the steering chains with the two nuts, lo-
cated under the central point. See fig. 29.
3. Adjust both nuts by the same amount until there 
is no clearance.
4. Test drive the machine straight forwards and 
check that the steering wheel is not off centre.
5. If the steering wheel is off centre, undo one nut 
and tighten the other.
Do not over-tighten the steering chains. This will 
cause the steering to become heavy and will in-
crease wear on the steering chains.
5.10 Battery
If acid comes into contact with the eyes 
or skin, this can cause serious injuries. 
If any part of the body has come into 
contact with acid, rinse immediately 
with copious amounts of water and seek 
medical assistance as soon as possible.
The battery is a valve-regulated battery with 12 V 
nominal voltage. The battery fluid does not need to 
and cannot be checked or topped up. The only 
maintenance that is required is charging, for exam-
ple after extended storage.
The battery must be fully charged be-
fore being used for the first time. The 
battery must always be stored fully 
charged. If the battery is stored while 
discharged, serious damage will occur. 
5.10.1 Charging with the engine
The battery can be charged using the engine’s gen-
erator as follows:
1. Install the battery in the machine as shown be-
low.
2. Place the machine outdoors or install an extrac-
tion device for the exhaust fumes.
3. Start the engine according to the instructions in 
the user guide.
4. Allow the engine to run continuously for 45 
minutes.
5. Stop the engine. The battery will now be fully 
charged.
5.10.2 Charging using battery charger
When charging using a battery charger, a battery 
charger with constant voltage must be used.
Contact your dealer to purchase a battery charger 
with constant voltage.
The battery can be damaged if a standard type 
battery charger is used.  
						

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ENGLISHEN
5.10.3 Removal/Installation
The battery is placed under the tank. To access the 
battery, first dismantle the fuel tank as follows:
1. Open the engine casing.
2. Close the fuel cock, see 15.
3. Unscrew the two wing nuts (18:B) and remove 
the clamps.
4. Carefully lift up the petrol tank.
During removal/installation of the battery, the fol-
lowing applies regarding connection of the cables:
• During removal. First disconnect the black ca-
ble from the battery’s negative terminal (-). 
Then disconnect the red cable from the battery’s 
positive terminal (-).
• During installation. First connect the red cable 
to the battery’s positive terminal (+). Then con-
nect the black cable to the battery’s negative ter-
minal (-).
If the cables are disconnected/connect-
ed in the wrong order, there is a risk of 
a short-circuit and damage to the bat-
tery.
If the cables are interchanged, the gen-
erator and the battery will be damaged.
The engine must never be driven with 
the battery disconnected. There is a risk 
of serious damage to the generator and 
the electrical system.
When the battery has been rectified, install the fuel 
tank as follows:
Check that the petrol hose is not 
clamped against the hydraulic pump 
and does not come into contact with 
this. The hydraulic pump becomes very 
hot during operation. Risk of fire.
1. Place the petrol tank on the brackets. Check that 
the petrol hose is not touching the hydraulic 
pump.
2. Install the clamps and tighten the wing nuts 
(18:B).
5.10.4 Cleaning
If the battery terminals are coated with oxide, they 
should be cleaned. Clean the battery terminals with 
a wire brush and lubricate them with terminal 
grease.5.11 Air filter, engine
5.11.1 Air filter (Pro16, Pro20)
The pre-filter (foam filter) must be cleaned/re-
placed after 25 hours of operation.
The air filter (paper filter) must be cleaned/re-
placed after 100 hours of operation.
NOTE! The filters should be cleaned/replaced 
more often if the machine operates on dusty 
ground.
Remove/install the air filters as follows.
1. Clean carefully around the air filter cover.
2. Dismantle the air filter cover (26:A) by remov-
ing the two clamps. 
3.  Dismantle the filter assembly (26:B). The pre-
filter is placed over the air filter. Make sure that 
no dirt gets into the carburettor. Clean the air fil-
ter housing.
4. Clean the paper filter by tapping it gently 
against a flat surface. If the filter is very dirty, 
replace it.
5. Clean the pre-filter. If the filter is very dirty, re-
place it.
6. Assemble in the reverse order.
Compressed air or petroleum-based solvents such 
as kerosene may not be used for cleaning the paper 
filter insert. This will damage the filter.
Do not use compressed air for cleaning the paper 
filter insert. The paper filter insert must not be 
oiled. 
5.11.2 Air filter (Prestige, Pro25)
The pre-filter (foam filter) must be cleaned after 25 
hours of operation.
The air filter (paper filter) must be replaced after 
100 hours of operation.
NOTE! The filters should be cleaned/replaced 
more often if the machine operates on dusty 
ground.
Remove/install the air filters as follows.
1. Clean carefully around the air filter cover.
2. Dismantle the air filter cover (27, 28:A) by un-
doing its screw (27, 28:B). 
3.  Dismantle the filters. The pre-filter (27, 28:C) is 
placed over the air filter (27, 28:D). Make sure 
that no dirt gets into the carburettor. Clean the 
air filter housing.
4.  Wash the pre-filter (27, 28:C) in liquid deter-
gent and water. Squeeze dry. Pour a little oil on 
the filter and squeeze in the oil.
5. Assemble in the reverse order. Check that the 
rubber seal (27, 28:E) is undamaged. Replace 
the seal if necessary.