Stiga PARK PRO 25 4WD User manual

STIGA PARK
4WD
PRO 25
PRO 20
PRO 16
PRESTIGE
8211-0540-01
INSTRUCTIONS FOR USE

A
B
C
F
D
E
Pro16
GIK
HJ
N
P
Q
Prestige G
I
K
Pro20 Pro25
GHIJK
L
N
OM
1
3
5
2
4
6

R
V
U
Prestige
W
S
T
Max
Pro16 Pro20
W
7
9
11
8
10
12

Pro25
W
X
0
1
Pro16 Pro20
Y
Z
10 Ampere
Prestige
Y
Pro25
B
A
Y
13
15
17
14
16
18

Prestige Pro25
Z
19
21
23
20
22
24

FG
H
A
EC
D
BE
Prestige
A
B
Pro16 Pro20
Pro25
D
C
E
A
B
25
27
29
26
28
30

31
33
32

ENGLISH EN
1 GENERAL
This symbol indicates WARNING. Seri-
ous personal injury and/or damage to
property may result if the instructions
are not followed carefully.
Youmustreadtheseinstructionsforuse
and the accompanying pamphlet
“SAFETY INSTRUCTIONS” careful-
ly, before starting up the machine.
1.1 SYMBOLS
The 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!
Readthe instruction manualandthe 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.
Componentsshowninthefigures 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.
Whenreferring to headings, only thenumberof the
heading is normally specified. E.g. “See 1.3.1”.
2 DESCRIPTION
2.1 Drive
The 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 Steering
The 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 system
The 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.
Theoperation of thesafety systemmust
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.
Floatingposition shouldbe used whenworking.

ENGLISH
EN
•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.
•Depressedhalfway.Forward drivedisengaged.
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 andto 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.

ENGLISH EN
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 byhand 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.
Themachine may not be towed overlongdistances
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

ENGLISH
EN
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 petrol
Always 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-
pingup. Fillup with fuelbeforestarting
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 level
On 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 collection Using towed collector 30" or 42".
Grass and leaf
transport Using 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
paths Using front-mounted hoe.
Lawn edge trim-
ming Using edge trimmer.
Moss scarification Using moss scarifier.

ENGLISH EN
4.3 Safety checks
Check 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 Start
1. 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 controlin
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
behindthechoke 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.

ENGLISH
EN
4.6 Operating tips
Always 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
lockwhendrivingintopgearand 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 Stop
Disengage 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-
atelyafterit is shutoff.Do not touchthe
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 programme
In 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 Preparation
Allserviceandall 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 pressure
Adjust the air pressure in the tyres as follows:
Front: 0.6 bar (9 psi).
Rear: 0.4 bar (6 psi).

ENGLISH EN
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. Installtheoildrainageplugand 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
draintheengine 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. Installtheoil drainageplugandmove 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

ENGLISH
EN
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
drainthe engine oil and installtheoil 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 filter
Pro 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 filter
The 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-
20minutes in order to warmupthetransmission
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
replacement Filter replace- ment
Prestige 1.9 litres 2.0 litres
Pro25 2.0 litres 2.1 litres
Action 1st 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, Pro25 5 200

ENGLISH EN
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!Theoil is suckedintothe systemvery
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 transmissions
After 5 hours of operation, check that all the belts
are intact and undamaged.
5.9 Steering
The steering must be checked/adjusted after 5
hoursofoperation 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
withcopious 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.

ENGLISH
EN
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 (-).
Thendisconnect the red cable fromthebattery’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
thebatterydisconnected. Thereisarisk
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 tankon 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
shouldbe cleaned. Clean the battery terminalswith
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)
Thepre-filter(foamfilter)mustbecleanedafter25
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. Dismantlethe 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.

ENGLISH EN
5.12 Spark plug
The spark plug(s) must be replaced every 200
hours of operation (=at every other basic service).
Use the spark plug key supplied.
Before disconnecting the spark plug, clean around
its mounting.
Spark plug: Champion RC12YC or equivalent.
Electrode distance: 0.75 mm.
5.13 Air intake
See 11, 12, 13:W. The engine is air-cooled. A
blocked cooling system can damage the engine.
Clean the engine’s air intake after 50 hours of op-
eration. More meticulous cleaning of the cooling
system is carried out during each basic service.
5.14 Lubrication
All lubrication points in accordance with the table
below must be lubricated every 50 hours of opera-
tion as well as after every wash.
5.15 Fuses
If any of the faults listed below occurs, replace the
relevant fuse. See fig. 14.
6 PATENT - DESIGN REGISTRA-
TION
This machine or parts thereof is covered by the fol-
lowing patent and design registration:
SE9901091-0, SE9901730-3, SE9401745-6,
US595 7497, FR772384, DE69520215.4,
GB772384, SE0301072-5, SE04/000239 (PCT),
SE0401554-1.
GGP reserves the right to make alterations to the
product without prior notification.
Object Action Fig-
ure
Wheel bear-
ing 2 grease nipples. Use a grease gun filled with
universal grease. Pump until
the grease emerges.
32
Centre point 4 grease nipples.
Use a grease gun filled with
universal grease. Pump until
the grease emerges.
30
Steering
chains Brush the chains clean with a wire brush.
Lubricate with universal
chain spray.
-
Tensioning
arms Lubricate the bearing points with an oil can when each
control is activated.
Ideally carried out by two
people.
33
Control
cables Lubricate the cable ends with an oil can when each control
is activated.
Must be carried out by two
people.
31
Fault Fuse
The engine does not start or starts and
stops immediately. The battery is
charged.
10 A
Sand spreader and electrical cutting
height adjustment do not work.
(Does not apply to Prestige)
20 A
All electrical functions are out of
operation. The battery is charged. 30 A

www.stiga.com
GGP Sweden AB · Box 1006 · SE-573 28 TRANÅS