Lawn Tractor 8211 0276 06 Stiga Park Pro20 Pro16 Royal President Comfort Operators Manual

							51
ENGLISHEN
GENERAL
This symbol indicates WARNING. 
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” 
carefully, before starting up the 
machine.
SYMBOLSThe following symbols appear on the machine. 
They are there to remind you of the care and 
attention 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 
onlookers away.
Warning!
Always wear hearing protectors.
Warning!
This machine is not designed to be driven 
on public roads.
Warning!
The machine, equipped with original 
accessories, must not be driven in any 
direction on slopes with a gradient greater 
than 10º.
Warning!
Risk of crushing injuries. Keep hands and 
feet well away from the articulated 
steering joint.
Warning!
Risk of burn injuries. Do not touch the 
silencer/catalytic converter. 
CONTROLS AND 
INSTRUMENTS
Items 1 - 19, see figures 1 - 7.
1. IMPLEMENT LIFTER 
(President - Comfort - Royal - Pro16)
A pedal for raising 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 
implement 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 
lifter to the working position by slowly lifting your 
foot from the pedal.
2. HYDRAULIC LIFTER (Pro20)Hydraulic implement lifter for raising front-
mounted implements to the transport position. 
To raise the implement, press the rear 
part of the switch. Release the switch 
in the required position.
To lower the accessory, press the 
front part of the switch. The switch 
stays in the pressed position and the 
implement lifter is lowered until it 
reaches a floating position. This 
means that the implement can follow 
the contours of the ground.
The floating position, with the switch in the tilted 
forward position, is recommended for normal use. 
To secure the implement lifter, place the switch in 
neutral.
NOTE! The hydraulic implement lifter must be 
in floating position in order for the power take-
off to be connected.
3. SERVICE BRAKEA 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. 
Service brake not activated.
3. Pedal fully depressed – 
forward drive disengaged. 
Service brake fully activated.
4. PARKING BRAKEAn inhibitor that can lock the brake pedal in the 
depressed position. 
Depress the brake pedal fully. Move the 
inhibitor to the right 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.  
						

							52
ENGLISHEN
5. DRIVE PEDALA 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 
machine 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.
6. ADJUSTABLE STEERING WHEELThe height of the steering wheel is infinitely 
adjustable. Undo the adjustment knob on the 
steering column and raise or lower the steering 
wheel to the desired position. Tighten.
Do not adjust the steering wheel during 
operation.
7. THROTTLE/CHOKE CONTROLA control for setting the engine speed and to choke 
the engine when starting from cold. (The latter 
does not apply to Royal-Pro16-Pro20 which have 
separate choke control – see item 8). 
1. Choke – for starting a cold engine. The 
choke is located in top of groove (does not 
apply to Royal-Pro16-Pro20). Avoid 
operating the machine in this position, 
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.
8. CHOKE CONTROL 
(Royal - Pro16 - Pro20)
A pull-type control to choke the engine when 
starting from cold.
1. Control fully pulled out – choke valve 
in carburettor closed. For starting cold 
engine.
2. Control pushed in – choke valve open. 
For starting warm engine and when 
operating the machine. 
Never operate the machine with the choke 
pulled out when the engine is warm.
9. IGNITION LOCK/SPOTLIGHTIgnition lock used for starting/stopping the engine. 
Also includes switch for spotlight (Senator does 
not have a spotlight). Four positions:
1. Stop position – the engine is short-
circuited. The key can be removed.
2. Operating position – spotlight 
activated.
3. Operating position – spotlight not 
activated.
4. Start position – the electric start motor 
is activated when the key is turned to the 
spring-loaded start position. Once the 
engine has started, let the key return to 
operating position 3.
To turn on the spotlight, turn the key to position 2.
NOTE! If the key is turned from the stop 
position to operating position 2, the spotlight is 
activated. This uses up battery power. Do not 
leave the machine with the key in position 2 
(applies to Pro16-Pro20).
10. POWER TAKE-OFFA lever for engaging and disengaging the power 
take-off for operating front-mounted accessories. 
Two positions:
1. Lever in forward position – power take-
off disengaged.
2. Lever in backward position - power 
take-off engaged. 
11. POWER TAKE-OFF (Pro20)Switch for engaging/disengaging the 
electromagnetic 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. 
12. DIFFERENTIAL INHIBITOR
(Pro16 - Pro20)
Lever for engaging the differential inhibitor. This 
improves the towing capacity by locking the rear 
wheels so that both wheels drive simultaneously. 
Two positions:
1. Forward position – the differential 
inhibitor is not engaged. For normal 
operation. 
						

							53
ENGLISHEN
2. Lever in backward position - 
differential inhibitor engaged. Works for 
both forward and reverse drive.
The differential inhibitor is of greatest use 
when the rear wheels are unevenly loaded. For 
example when turning sharp corners where the 
inner rear wheel bears a lesser load.
When driving during the winter on slippery 
surfaces, the drive capacity is improved if snow 
chains are not used.
When the differential inhibitor is engaged, the 
steering is heavy. Avoid turning the steering 
wheel!
13. HOUR COUNTERIndicates the number of working hours. Only 
works when the engine is running.
14. CRUISE CONTROL 
(Royal - Pro16 - Pro20)
A switch for activating the cruise control. The 
cruise control allows the drive pedal (5) to be 
locked in the desired position.
1. Press down the drive pedal until the 
desired 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 braking 
or pressing the rear part of the switch. 
15. CUTTING HEIGHT ADJUSTMENT 
(Royal - Pro16 - Pro20)
The machine is equipped with a control for using 
the cutting deck with electrical cutting height 
adjustment (available as an accessory).
The switch is used to adjust the cutting 
height in continuously variable positions. 
The contact used for connecting the 
cutting deck is mounted on the right side, in front 
of the front wheel (fig. 2).
16. REAR RAKE (Pro20)The machine is fitted with a control for electrical 
adjustment of a rear rake (available as an 
accessory). 
The switch is used to raise and lower the 
rear rake.
Cables for connecting the rear rake are found at the 
rear of the machine, to the left of the upper side of 
the bumper.  (Pro16 is prepared for a rear rake, 
cables routed).
17. SAND SPREADER (Pro20)The machine has been designed for electrical 
adjustment of a sand spreader (available as an 
accessory). 
The switch is used to start and stop the 
spreader.
The contact for connecting the sand spreader is 
found at the rear of the machine, to the left of the 
upper side of the bumper.  (Pro16 is prepared for a 
sand spreader, cables routed).
18. DISENGAGING LEVER 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 moved back – 
transmission engaged for normal 
operation.
2. Lever moved forward – 
transmission disengaged. The 
machine can be moved by hand.
The machine may not be towed over long distances 
or at high speeds. The transmission could be 
damaged. 
19. FUEL GAUGE/FUEL CAPFuel cap with built-in fuel gauge that 
indicates how much fuel there is in the 
fuel tank (applies to Royal-Pro16-Pro20).
Comfort and President have a fuel cap 
without a fuel gauge.
The fuel tank holds approx. 11.5 litres.
AREAS OF USE
The machine may only be used for the following 
tasks using the genuine STIGA accessories stated.
1. Mowing
Using cutting deck 13-2939 (92M), 13-2927/
13-2935 (107M), 13-2951/13-2952 (107 M 
HD), 13-2915/13-2921 (121M), 13-2936/13-
2937 (125 Combi Pro) or flail mower 13-1977.
2. Sweeping
Using brush unit 13-1933 or collector brush 
unit 13-1939. Use of dust guard 13-1936 is 
recommended with the first option.
3. Snow clearance
Using snow blade 13-0918 or snow thrower 13-
1948. Snow chains 13-0936 (16“)/13-0937 
(17“) and frame weights 13-0923 are 
recommended.
4. Grass clipping and leaf collection
Using towed collector 13-1978 (30) or 13-
1950 (42).
12V 
						

							54
ENGLISHEN
5. Grass and leaf transport
Using dump cart 13-1979 (Standard), 13-1988 
(Maxi) or 13-1992 (Combi).
6. Sand spreading
Using sand spreader 13-1975. Can also be used 
for spreading salt. Snow chains 13-0936 (16“) 
13-0937 (17“) and frame weights 13-0923 
recommended.
7. Weeding on gravel paths
Using front mounted hoe 13-1944 and rear-
mounted rake 13-1969.
8. Lawn edge trimming
Using edge trimmer 13-0905.
9. Moss scarification
Using moss scarifier 13-1984.
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 
insurance company.
NOTE! This machine is not intended to be driven 
on public roads.
STARTING AND OPERATION
ENGINE CASING
To inspect and maintain the engine and battery, re-
move the engine casing. Dismantling:
1. Unscrew the fuel cap/fuel gauge.
2. Pull up the rubber strap at the front edge of the 
casing (fig. 8).
3. Carefully lift off the engine casing (fig. 9).
Assembly:
1. Place the casing over the lip on each side.
2. Make sure that the pins on the rear edge of the 
casing go down into the respective holes (fig. 
10).
3. Secure the front edge of the casing with the 
rubber strap (fig. 8).
4. Finally, screw in the fuel cap/fuel gauge.
The machine may not be operated 
unless the engine casing is mounted. 
Risk of burns and crushing injuries.
FILLING THE FUEL TANKAlways use lead-free petrol. You must never use 2-
stroke petrol mixed with oil.
NOTE! Bear in mind that ordinary lead-free petrol 
is a perishable; do not purchase more petrol than 
can be used within thirty 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 
topping up. Fill 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 
(fig. 28).
CHECKING THE ENGINE OIL LEVEL
(President - Comfort - Pro16 - Pro20)
On delivery, the crankcase is filled with SAE 30 
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. 
Unscrew 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 (figs. 11).
CHECKING THE ENGINE OIL LEVEL 
(Royal)
On delivery, the crankcase is 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. 
Unscrew and pull it up. Wipe off the 
dipstick. Slide it down completely without 
tightening it. 
Pull it up again and read off the oil level.  Top up 
with oil to the “UPPER” mark, if the oil level is 
below it (fig. 11). 
						

							55
ENGLISHEN
CHECKING THE TRANSMISSION 
OIL LEVEL
The transmission is filled with SAE 10W-40 oil 
when the machine is delivered from the factory,
Check the oil level every time before using to 
ensure it is correct. The machine should be 
standing on level ground.
Read off the oil level in the reservoir (fig. 23). It 
should be between the “MAX” and “MIN” marks. 
If necessary, top up with more oil. Use oil SAE 
10W-40 (20W-50).
SAFETY SYSTEMThis machine is equipped with a safety system that 
consists of: 
- a switch at the brake pedal. 
- a switch in the seat (Comfort, President) or the 
seat bracket (other models).
- a switch at the power take-off engagement 
lever. 
In order to start the machine, the following are 
necessary: 
- brake pedal pressed down. 
- driver sitting on seat. 
- power take-off engagement lever in forward 
position (i.e. power take-off disengaged).
Always check the operation of the 
safety system before using the machine!
With the engine running and the driver sitting on 
the seat, check as follows: 
- press the drive pedal so that the machine starts 
to move, release the drive pedal – the machine 
must stop. 
- press the drive pedal so that the machine starts 
to move, engage the cruise control, lift your 
weight off the seat – the machine must stop 
(applies to Royal, Pro16, Pro20).
- press the drive pedal so that the machine starts 
to move, engage the cruise control, press the 
brake pedal – the machine must stop (applies to 
Royal, Pro16, Pro20). 
- engage the power take-off, lift your weight off 
the seat – the engine must stop (applies to 
Comfort, President, Royal, Pro16).
- engage the power take-off, lift your weight off 
the seat – the power take-off must be 
disengaged (applies to Pro20).
Do not use the machine if the safety 
system is not working! Take the 
machine to a service workshop for 
inspection! 
STARTING ENGINE1. Open the fuel cock (fig. 12).
2. Make sure that the spark plug cable is properly 
in place.
3. Check to make sure that the power take-off is 
disengaged. 
4. Do not keep your foot on the drive pedal. 
5a. Comfort-President:
Starting cold engine – put the throttle control in the 
choke position. Starting warm engine – put the 
throttle control at full throttle (approx. 1 cm behind 
the choke position).
5b. Royal-Pro16-Pro20:
Put the throttle control at full throttle. Starting cold 
engine – pull the choke control out fully. Starting 
warm engine – do not touch the choke control.
6. Depress the brake pedal fully.
7. Turn the ignition key and start the engine.
8a. Comfort-President:
Once the engine has started, move the throttle 
control gradually to full throttle if the choke has 
been used. 
8b. Royal-Pro16-Pro20:
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 
machine work under load immediately, but let the 
engine run for a few minutes first. This will allow 
the oil to warm up. 
When in use, always operate the engine at full 
throttle.
STOPPINGDisengage the power take-off. Apply the parking 
brake. 
Allow the engine to idle 1 - 2 mins. Stop the engine 
by turning off the starter key.
Shut off the petrol cock. This is particularly 
important if the machine is to be transported on a 
trailer for example.
If the machine is left unattended, 
remove the spark plug cable from the 
spark plug. Also remove the starter key.
The engine may be very warm 
immediately after it is shut off. Do not 
touch the silencer, cylinder or cooling 
fins. This can cause burn injuries. 
						

							56
ENGLISHEN
CATALYTIC CONVERTER 
(Pro20 Cat)
The catalytic converter gets very hot during 
operation. The heat remains for a long time after 
the engine has been stopped. Be aware of the fire 
risk.
Do not park in close proximity to 
inflammable objects. Do not cover the 
machine until the catalytic converter 
has cooled down.
STEERING AID (Pro20)Built-in function in order to facilitate steering. The 
operator only has to turn the steering wheel gently. 
A hydraulic torque amplifier creates the remaining 
force.
As opposed to normal servo steering (e.g. in a car), 
the steering aid has a limited capacity. This means 
that it has some characteristics that might be 
considered negative:
- at a low engine rpm or in situations where extra 
steering force is needed, steering can be 
considered to be “jumpy”.
- the machine should always be moving when the 
steering is used. Avoid turning the steering 
wheel when the machine is standing completely 
still and the accessory is in the lowered working 
position.
The steering is adapted in order to produce better 
results at a normal working speed. This produces 
major benefits.
Even when the engine is not running, the steering 
works. However, it is harder to turn in this case, if 
the machine is to be manoeuvred manually.
DRIVING TIPSMake sure that there is the correct quantity of oil in 
the engine when driving on slopes (oil level on 
“FULL”). 
Be careful when driving on slopes. No 
sudden starting or stopping when 
moving up or down a slope. Never drive 
across a slope. Move from the top down, 
and from the bottom to the top. 
The machine, equipped with original 
accessories, may not be driven on slopes 
greater than 10º in any direction.
Reduce the speed on slopes and when 
making sharp turns to prevent the 
machine from tipping over or you 
losing control of the machine.
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. 
Never operate the machine without the 
engine casing.
SERVICE AND MAINTENANCE
SERVICE PROGRAMIn order to keep the machine in good condition, as 
regards reliability and operational safety as well as 
from an environmental perspective, STIGA’s 
service program should be followed.
The contents of this program can be found in the 
attached service log.
We recommend that an authorised workshop 
carries out every service. This guarantees that the 
work is performed by trained personnel and with 
genuine spare parts.
At every service, the service log should be 
stamped. A “fully stamped” service log is a 
valuable document that improves the machine’s 
second-hand value.
PREPARATIONSUnless otherwise stated, all service and 
maintenance must be carried out on a stationary 
machine when the engine is not running.
Prevent the machine from rolling by 
always applying the parking brake.
Prevent unintentional starting of the 
engine by always stopping the engine, 
disconnecting the spark plug cable 
from the spark plug and earthing it. 
Disconnect the negative cable from the 
battery. 
CLEANING
To reduce the risk of fire, keep the 
engine, silencer/catalytic converter, 
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. 
When washing the machine with water 
under high pressure, do not point the jet directly at 
the transmission.
Do not point jets of water directly at the engine. 
Use a brush or compressed air in order to clean it. 
						

							57
ENGLISHEN
ENGINE OIL 
(President - Comfort - Pro16 - Pro20)
Change the oil for the first time after 5 hours 
running, and then after every 50 hours running or 
once a season. Change oil when the engine is 
warm.
Always use a good grade of oil (service grade SF, 
SG or SH).
Change the oil more often (after 25 hours of 
operation or at least once a season) if the engine 
has to operate under demanding conditions or if 
the ambient temperature is high.
The engine oil may be very hot if it is 
drained off directly after the engine is 
shut off. So allow the engine to cool a 
few minutes before draining the oil.
1. Oil drain pipe (metal):
Unscrew the oil drain plug at the end of the pipe. 
Collect the oil in a collection vessel. Then take 
the oil to a recycling station. Do not allow oil to 
get on the V-belts.
2. Screw in the oil drain plug. Make sure that the 
fibre gasket and the O-ring inside the plug are not 
damaged and that they are in the correct place.
3. Remove the dipstick and fill up with new oil.
Oil capacity:
Comfort, President - 1.4 l
Pro16, Pro20 - 1.7 l (incl. oil filter)
Oil type, summer (> 4ºC): SAE-30
(SAE 10W-30 can also be used. However, oil 
consumption may increase somewhat if 10W-30 is 
used. Therefore, check the oil level more regularly 
if you use this type of oil).
Oil type, winter (< 4ºC): SAE 5W-30 
(if this oil is not available, use SAE 10W-30).
Use oil without any additives.
Do not fill with too much oil. This can cause the 
engine to overheat. 
After filling up the oil, start the engine and idle for 
30 seconds. Stop the engine. Wait for 30 seconds 
and then check the oil level. 
Check to see if there is any oil leakage. If 
necessary, fill up the oil up to the “FULL“ mark.
ENGINE OIL (Royal)Change the oil for the first time after 20 hours of 
operation (or during the first month), and then after 
every 100 hours of operation or once every 6 
months. 
Change oil when the engine is warm. Always use 
a good grade of oil (service grade SF, SG or SH). 
The engine oil may be very hot if it is 
drained off directly after the engine is 
shut off. So allow the engine to cool a 
few minutes before draining the oil.Unscrew the oil drain plug at the end of the pipe 
(fig. 13). 
Collect the oil in a collection vessel. Then take 
the oil to a recycling station. Do not allow oil to 
get on the V-belts.
Screw in the oil drain plug. Make sure that the fibre 
gasket and the O-ring inside the plug are not 
damaged and that they are in the correct place.
Remove the dipstick and fill up with new oil up to 
the “UPPER” mark.
Oil capacity:
Royal - 0.9 l (= oil quantity at change. In total the 
engine holds 1.15 l).
Oil type for all seasons: SAE 10W-40. 
For extremely low temperatures (< -20° C), use 
SAE 5W-30.
Use oil without any additives.
Do not fill with too much oil. This can cause the 
engine to overheat. 
OIL FILTER – ENGINE 
(Pro16 - Pro20)
Replace the oil filter after every 100 hours of 
operation or once a season.
Before screwing the new filter, oil the filter gasket 
with engine oil. 
Screw the filter by hand, until the filter gasket 
touches the filter attachment. Then tighten ½ to ¾ 
of a full turn (fig. 14).
Start the engine and idle to see if any leakage 
occurs. Stop the engine. Check the oil level. If 
necessary, fill up the oil up to the “FULL” mark.
AIR FILTER - ENGINEComfort - President - Pro16 - Pro20:
Clean the foam pre-filter every 3 months or after 
every 25 hours of operation, whichever comes 
first.
Clean the paper filter insert once a year or after 
every 100 hours of operation, whichever comes 
first.
Royal:
Clean the air filter every 3 months or after every 50 
hours of operation, whichever comes first.
Clean the paper filter insert once a year or after 
every 200 hours of operation, whichever comes 
first.
All models:
Note! Both filters should be cleaned more often if 
the machine operates on dusty ground.
1. Remove the protective cover of the air filter (fig. 
15 - 17). 
2. Dismantle the paper filter insert and the foam 
pre-filter. Make sure that no dirt gets into the 
carburettor. Clean the air filter housing. 
						

							58
ENGLISHEN
3a. Pro 16, Pro 20:
Wash the pre-filter in liquid detergent and water. 
Squeeze dry. Pour a little oil on the filter and 
squeeze in the oil.
3b. President, Comfort:
Replace the pre-filter once a year or after every 25 
hours of operation, whichever comes first.
4. Clean the paper filter insert as follows: Knock it 
lightly against a flat surface. If the filter is very 
dirty, change it.
5. Assemble in the reverse order.
Petroleum-based solvents such as kerosene may 
not be used for cleaning the paper filter insert. 
These solvents can destroy the filter.
Do not use compressed air for cleaning the paper 
filter insert. The paper filter insert must not be 
oiled. 
AIR FILTER – CATALYTIC 
CONVERTER (Pro20 Cat)
Clean the catalytic converter’s air filter every 3 
months or after every 25 hours of operation, 
whichever comes first.
1. Remove the cover by pressing in the locking 
mechanism with a screwdriver etc. (fig. 18).
2. Remove the foam filter and wash it in liquid 
detergent and water. Squeeze dry. Do not oil the 
filter.
3. Replace the filter and snap the cover into place.
SPARK PLUGOnly use a Briggs & Stratton sparking tester to 
check the spark in the sparking plug(s) (fig. 19).
Clean the spark plug after every 100 hours of 
operation or once a season. For replacing a spark 
plug, a spark plug sleeve A and a torsion pin B are 
provided in the accessories bag.
The engine manufacturer recommends:
Royal: NGK BPR5ES or DENSO W16EPR-U
President-Comfort-Pro16-Pro20: Champion 
RC12YC
Correct spark gap: 0.75 mm.
COOLING AIR INTAKE - ENGINEThe engine is air-cooled. A blocked cooling 
system can damage the engine. The engine should 
be cleaned at least once a year or every 100 hours 
of operation.
Remove the fan casing. Clean the cooling fins on 
the cylinder, the fan and the rotating protective 
grille. Clean more frequently if mowing dry grass. 
BATTERYThe battery is a valve-regulated battery with 12 V 
nominal voltage. The battery is completely 
maintenance 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 
before 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 
extended 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. 
Stiga recommends battery charger with item no. 
1136-0602-01 which may be ordered by an 
authorised dealer.
2. You can also allow the engine to charge the 
battery. 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 allow the engine to run continuously for at 
least 45 minutes.
Do not short circuit the battery’s 
terminals. 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 
battery should be replaced.
If the battery terminals are coated with oxide, they 
should be cleaned. Clean the battery terminals with 
a wire brush and grease them.
LUBRICATIONThe machine’s articulated steering joint has four 
grease nipples that should be lubricated with 
universal grease after every 25 hours of operation 
(fig. 20). 
Note: The fourth grease nipple is not shown on the 
picture. It is located on the underside, on the 
flexible axle’s front bearing.
Comfort-President-Royal:
Lubricate the steering chain with chain spray a 
couple of times per season. 
						

							59
ENGLISHEN
Pro16-Pro20:
Lubricate the steering chains with chain spray a 
couple of times per season. If the steering chains 
are really dirty, dismantle them, wash them and 
then grease them once more.
Comfort-President-Royal:
The front wheel hub has grease nipples that should 
be lubricated after every 50 hours of operation (fig. 
24).
Apply universal grease to all the plastic bearings a 
couple of times per season. 
Apply a coating of engine oil to the tension arm 
joints a couple of times each season.
Apply a few drops of engine oil to both ends of the 
throttle control cables a couple of times a season.
The hydrostatic transmission is filled with oil 
(10W-40) on delivery from the factory. Unless it is 
opened (only to be performed by a specialist), and 
provided no leakage occurs, no topping up with oil 
should normally be carried out. Transmission oil 
does not normally need to be changed.
STEERING CABLES 
(President - Comfort - Royal)
The steering cables should be adjusted for the first 
time after the machine has been in operation for 2 
- 3 hours, and then after every 25 hours of 
operation.
Put the machine in the straight-ahead position.
Tension the steering cables by tightening the nuts 
that are located on the underside of the articulated 
steering joint (fig. 21). The screws in the ends of 
the cables should be held firmly during adjustment 
so that the cables are not twisted. Use an adjustable 
wrench or similar for this purpose, inserting it in 
the key handles in the ends of the screws. Tension 
until all play is removed.
Adjust both the nuts the same amount to ensure 
that the alignment of the steering wheel is not 
changed. 
Once the adjustment is complete, turn the steering 
wheel as far as it will go in either direction. Check 
that the chain does not come into contact with the 
pulley, and that the cables do not become 
entangled with the steering pinions. 
Do not tension the steering cables too hard. 
Otherwise the steering will be heavy and wear and 
tear on the cables will increase.
STEERING CHAINS (Pro16 - Pro20)The steering chains should be adjusted for the first 
time after the machine has been in operation for 2 
- 3 hours, and then after every 50 hours of 
operation.
Put the machine in the straight-ahead position.Tension the steering chains by tightening up the 
nuts that are located on the underside of the 
articulated steering joint (fig. 21). Tension until all 
play is removed. 
Adjust both the nuts the same amount to ensure 
that the alignment of the steering wheel is not 
changed.
Do not over-tighten the steering chains. This will 
cause the steering to become heavy and will 
increase wear on the steering chains.
PATENT - DESIGN 
REGISTRATION
This machine or parts thereof is covered by the 
following patent and design registration:
9900627-2 (SE), SE00/00250 (PCT), 9901091-0 
(SE), SE00/00577 (PCT), 9901730-3 (SE), SE00/
00895 (PCT), 9401745-6 (SE), SE95/00525 
(PCT), 595 7497 (US), 95920332.4 (EPC).
99 1095 (SE), 499 11 740.9 (DE), M1990 000734 
(IT), 577 251-253 (FR), 115325 (US).
GGP reserves the right to make alterations to the 
product without prior notification.  
						

							60
FRANÇAISFR
GÉNÉRALITÉS
Ce symbole signifie ATTENTION : 
risque de blessure ou de dégât matériel 
en cas de non-respect des instructions.
Avant de démarrer la machine, lire 
attentivement les instructions ainsi que 
les consignes contenues dans le fascicule 
« RÈGLES DE SÉCURITÉ » ci-joint. 
SYMBOLESLes symboles suivants figurent sur la machine. Ils 
attirent votre attention sur les dangers d’utilisation 
et les mesures à respecter.
Explication des symboles :
Attention !
Lire le mode d’emploi et le manuel de 
sécurité avant d’utiliser la machine.
Attention !
Attention aux projections. Travailler à une 
distance suffisante de toute présence.
Attention !
 Porter des protections auditives.
Attention !
Cet engin n’est pas conçu pour circuler sur 
la voie publique. 
Attention !
 La machine, équipée d’accessoires 
d’origine, ne peut en aucun cas être 
utilisée sur des pentes dont l’inclinaison 
est supérieure à 10°.
Attention !
Risque de blessure par écrasement. Garder 
les mains et les pieds à distance du joint de 
direction articulé.
Attention !
 Risque de brûlure. Ne pas toucher le 
silencieux ou le convertisseur catalytique. 
RÉGLAGES ET INSTRUMENTS
Articles 1 - 19, voir figures 1 - 7.
1. DISPOSITIF DE LEVAGE 
(President - Comfort - Royal - Pro16)
Pédale destinée à soulever en position de transport 
les accessoires montés à l’avant. 
Pour lever l’accessoire, enfoncer la pédale 
jusqu’en bout de course. Relâcher ensuite la pédale 
pour bloquer le dispositif en position levée.
Pour abaisser l’accessoire, appuyer sur la pédale 
pour la débloquer. Lever ensuite progressivement 
le pied pour amener doucement l’accessoire en 
position de travail.
2. DISPOSITIF DE LEVAGE 
HYDRAULIQUE (Pro20)
Dispositif de levage hydraulique permettant de 
soulever en position de transport les éléments 
montés à l’avant. 
Pour soulever l’accessoire, appuyer 
sur la partie arrière de l’interrupteur,  
puis le relâcher dans la position 
souhaitée.
Pour abaisser l’accessoire, appuyer 
sur la partie avant de l’interrupteur. 
L’interrupteur reste en position 
enfoncée et le dispositif de levage 
s’abaisse jusqu’à ce qu’il atteigne 
une position de flottement, ce qui 
signifie que l’accessoire peut suivre 
le relief du terrain.
La position de flottement, avec l’interrupteur 
basculé vers l’avant, est recommandée pour 
l’utilisation normale. Pour bloquer le dispositif de 
levage, positionner l’interrupteur sur neutre.
REMARQUE ! Le dispositif de levage 
hydraulique doit être en position de flottement 
pour que la prise de force soit connectée.
3. FREIN DE SERVICEPédale activant le système de freinage. Trois 
positions sont possibles :
1. Pédale relâchée – le frein de 
service n’est pas activé.
2. Pédale enfoncée jusqu’à mi-
course – marche avant 
désenclenchée. Le frein de 
service n’est pas activé.
3. Pédale enfoncée à fond – 
marche avant désenclenchée. Le 
frein de service est totalement 
activé.
4. FREIN DE STATIONNEMENTInhibiteur permettant de bloquer la pédale de frein 
dans la position enfoncée. 
Enfoncer à fond la pédale de frein.  
Déplacer l’inhibiteur vers la droite et 
relâcher la pédale de frein.
Pour débloquer le frein de stationnement, appuyer 
sur la pédale de frein. L’inhibiteur à ressort glisse 
sur le côté. 
Avant d’utiliser la machine, vérifier que le frein de 
stationnement est relâché.