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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...