Snow Blower Stiga DUO LINE DUO LINE+ SNOW STORM SNOW BLIZZARD SNOW FLAKE SNOW POWER 8218 2221 70 Instructions Manual

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 ENGLISHEN
3.  Turn the adjustment lever and set the deflector to throw 
the snow in the direction of the wind.
4.  Set the gear lever to a suitable position. 
The gear stick must not be moved if the driving 
clutch lever is depressed.
5.  Press down the auger clutch lever (13 in fig. 7/8) to 
activate the auger and discharge fan.
Watch out for rotating auger. Keep hands, feet, 
hair and loose clothing away from any moving 
parts on the machine.
6.  Press down the auger clutch lever (12 in fig. 7/8). The 
snow thrower now moves forward or backwards 
depending on the gear you have chosen.
5.8 DRIVING TIPS
1. Always run the engine on full throttle or next best.
The silencer and surrounding parts become very 
hot when the engine is running. Risk of burns. 
2. Always adapt the speed to the snowy conditions. 
Regulate the speed with the gear stick not the throttle.
3.  Snow is more effectively removed directly after falling.
4.  Always throw the snow in the direction of the wind if 
possible.
5.  Adjust the shoes with the screws (A in fig. 15) to suit the 
ground conditions: 
- On flat ground, e.g. asphalt, the shoes should be about  
3mm under the scraping blade.
- On uneven ground, e.g. gravel paths, the shoes should 
be about  30mm under the scraping blade.
Always adjust the shoes so that gravel and stones 
are not fed into the snow thrower. There is a risk 
for personal injury if these are thrown out at high 
speed. 
Ensure the shoes are adjusted the same on both sides.
6. Adapt the speed so that the snow is thrown in an even 
stream.
If snow fastens in the chute do not try to remove it 
before: 
- Releasing both clutch levers. Stopping the engine. 
Removing the ignition key. 
- Disconnecting the starting cable from the spark 
plug. 
- Do not put your hand inside the chute or auger. 
Use a wooden stick.
5.9 AFTER USE
1.  Check for loose or damaged parts. If required, change 
damaged parts.
2.  Tighten loose screws and nuts.
3.  Brush all the snow from the machine.
4.  Move all the controls backwards and forwards a few 
times.
5.  Put the choke in position   
6.  - Disconnecting the starting cable from the spark plug.
Do not cover the machine while the engine and 
silencer are still warm.
6 MAINTENANCE
6.1 OIL CHANGE
Change the oil the first time after 2 hours of operation, and 
subsequently every 25 hours of operation or once a season. 
Change oil when the engine is warm.
The engine oil may be very warm 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.  Lean the snow thrower slightly to the right so that the oil 
draining plug is the lowest point of the engine.
2.  Unscrew the oil draining plug.
3.  Let the oil run out into a container.
4.  Screw back the oil draining plug.
5.  Fill with new oil: See BEFORE STARTING above for 
type. 
Oil amount in the crankcase:
SNOW STORM - 0.6 litre
SNOW BLIZZARD - 0.8 litre
SNOW FLAKE - 0.8 litre
SNOW POWER - 0.8 litre
6.2 SPARK PLUG
Check the spark plug once a year or every hundred hours of 
use.
Clean or change the plug if the electrodes are burnt. The 
engine manufacturer recommends: Champion RC12YC.
Correct spark gap: 0.7/-0.8 mm 
6.3 CARBURETTOR
The carburettor is factory set. If adjustment is required, 
contact an authorised service station. 
7 LUBRICATION
No service must be carried out before: 
The engine has stopped. 
The ignition key has been removed. 
- The starting cable has been disconnected from 
the spark plug.
If the instructions say that the machine is to be lifted at the 
front and rested on the auger housing then the petrol tank 
must be emptied.
Empty the petrol tank outdoors when the engine is 
cold. Do not smoke. Empty into a container 
designed for petrol.
7.1 DISCHARGER
Lubricate the discharger flange and the adjustment lever 
worm gear every 5th hour of use and before long time 
storage. 
7.2 THE AUGER SHAFT
Lubricate the auger shaft lubricating nipples with a grease 
gun every 10th hour of use (fig 13). Always lubricate the 
shaft when changing the shear bolts.
Dismantle the bolts for long time storage. Lubricate with the 
grease gun and then rotate the auger freely on the shaft before 
replacing the bolts. 
						

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Note: The SNOW MASTER does not have lubricating 
nipples on the auger. Lubricate by removing the bolts.
7.3 WORM GEAR
The worm gear if filled with special lubricant at the factory. 
Refilling is not normally required.
Loosen the plug once a year and check if the worm gear 
contains lubricant (fig 14).
If it is leaking or has been repaired it must be refilled with 
lubricant. The worm gear holds 92 grams of lubricant at the 
most.
Use Shell Darina 1, Texaco Thermatex EP1, Mobiltem 78, 
Benalene #372 Grease or similar. 
7.4 HEXAGONAL SHAFT
The hexagonal shaft, chain sprocket and chains are not to be 
lubricated. All bearings and bushings are permanently 
lubricated and require no maintenance.
Lubricating these parts will only result in the grease getting 
on to the friction wheel and disc drive plate, which could 
damage the rubber clad friction wheel.
For long time storage the above-mentioned parts should be 
lightly wiped with an oily rag to prevent rust. 
8 SERVICE AND REPAIRS
No service must be carried out before: 
The engine has stopped. 
The ignition key has been removed. 
- The starting cable has been disconnected from 
the spark plug.
If the instructions say that the machine is to be lifted at the 
front and rested on the auger housing then the petrol tank 
must be emptied.
Empty the petrol tank outdoors when the engine is 
cold. Do not smoke. Empty into a container 
designed for petrol.
8.1 ADJUSTING THE SCRAPER BLADE 
The scraper blade gets worn after a lot of use.
Adjust the scraper blade (always together with the shoes)  
The scraper blade is reversible so can be used on both sides. 
8.2 ADJUSTING THE DRIVE BELTS
The drive belts should be checked (and adjusted if required) 
for the first time after 2 – 4 hours use and then the middle of 
each season. They should thereafter be checked twice a year.
When the belts are adjusted or changed, the control wires 
must also be adjusted (see below).
8.2.1 THE DRIVE BELT FOR DRIVING (A in Fig. 15)
The belt has a spring-loaded tension pulley. Adjustment is 
not required. If the belt slips, change it.
8.2.2 THE AUGER DRIVE BELT (B in Fig. 15)
1.  Remove the belt protective cover (1) by loosening the 
screws (2). See fig. 16.
2.  Loosen the tension-pulley (C) and move it about 3mm 
towards the belt  (fig. 17).
3.  Tighten the tension pulley nuts.4.  Check the belt tension by pressing down the auger clutch 
lever. With a finger, you should be able to push the belt  
about 12 - 13mm without any great power (fig 18). 
5. Repeat the above procedure if further adjustment is 
required.
6.  Reassemble the belt protection. See fig 16.
8.3 REPLACING BELTS 
The belts are specially designed for this machine. They must 
be replaced by new genuine belts provided by your retailer or 
authorised service station.
When the belts are adjusted or replaced, the control wires 
must also be adjusted (see below).
8.3.1 THE AUGER BELT
1.  Remove the spark plug protection.
2.  Loosen the screws (3) and dismantle the bottom plate (2). 
See fig 19.
3.  Remove the belt protective cover (1) by loosening the 
screws (2). See fig. 16.
4.  Loosen the belt guide (D) at the engine belt disc. See fig. 
15.
5.  Remove the tension pulley (C) from the belt. See fig. 15.
6.  Replace the belt (E in fig. 15). NOTE! Only genuine 
STIGA belts are to be used.
7.  Adjust the belt tension according to the above 
instructions.
8.  Assemble the belt guide (D) in fig 15.
9.  Adjust the belt tension according to the above 
instructions.
10. Reassemble the belt protection.
11. Adjust the control wire according to the below 
instructions.
8.3.2 THE DRIVING BELT
1.  Carry out items 1-5 above.
2.  Remove the locking ring (17) from the swing plate shaft 
(18). See fig 22. Pull out the shaft so that the swing plate 
(20) can tip forward. See fig 22.
3.  Remove the spring (16 in fig 22).
4.  Replace the belt (13 in fig. 22). NOTE! Only genuine 
STIGA belts are to be used.
5.  Check that the tension pulley (12) is in line with the belt 
(13). See fig 22.
6.  Reassemble the spring (16), shaft (18) and locking ring 
(17).
7.  Check that the underside of the disc drive plate (20) is 
situated between the marks (19). See fig 20.
NOTE! If the machine still does not drive properly, 
recheck the location of the disc drive plate (20).
8.  Adjust the belt tension according to the above 
instructions.
9.  Assemble the belt guide (D) in fig 15.
10. Adjust the belt tension according to the above 
instructions.
11. Reassemble the belt protection. See fig 16. 
						

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8.4 ADJUSTING THE BELT GUIDE
1.  Remove the spark plug protection.
2.  Remove the belt protective cover (1) by loosening the 
screws (2). See fig. 16.
3.  Activate the auger clutch lever (13 in fig 7/8).
4.  Check the distance between the belt guide and the belt. 
The distance should be 3 mm. See fig 17.
5.  If adjustment is required, loosen the screw to the belt 
guide and set the correct distance.
6.  Tighten the screw properly.
7.  Reassemble the belt protection. 
8.  Reassemble the spark plug protection.
8.5 ADJUSTING THE CONTROL WIRES
When the belts are adjusted or replaced, the control wires 
must also be adjusted (see below).
1.  Unhook the wire from the clutch lever (fig. 23).
2.  Push the clutch lever forward as much as possible (until 
it touches the plastic protection on the handle).
3.  Hold the wire stretched and note the position of the wire’s 
Z-shaped end.
4.  When the wire is correctly adjusted its end should be 
situated in the middle of the hole in the clutch lever (fig. 
23).
If adjustment is required:
5.  Lift the snow thrower forward and rest in on the auger 
housing.
6.  Push the wire through the spring so that the threaded part 
is exposed (fig 21).
7.  Hold the threaded part and adjust the nut up or down until 
the correct setting is obtained.
8.  Pull the wire through the spring again. Hook the wire into 
the upper part of the clutch lever.
9.  Same adjustment for both sides.
10. Start the snow thrower and check that it does not rotate 
when the clutch lever is up (= disengaged).If it does, 
contact an authorised service station. 
8.6 FRICTION WHEEL
If the snow thrower does not move forward the problem 
could be the driving belt, driving control wire or friction 
wheel. Check the friction wheel as follows.
8.6.1 CHECKING THE FRICTION WHEEL
1.  Remove the spark plug protection.
2.  Lift the snow thrower forward and rest in on the auger 
housing.
3.  Loosen the screws (3) and dismantle the bottom plate (2). 
See fig 19.
3.  Put the gear stick in bottom forward gear (one).
4.  Measure the distance A between the friction wheel and 
the outside of the side plate in fig. 24. The distance should 
be 109.5 mm.
5.  Adjustments are carried out as follows.
6.  Reassemble in the reverse order.
8.6.2 ADJUSTING THE FRICTION WHEEL 
Dismantle the parts and measure according to the 
instructions in items 1-4 above.
1. Loosen the screws and set the friction wheel until the 
measurement in item 4 above is obtained.
2.  If the friction wheel is so worn that adjustments cannot be 
carried out satisfactorily, replace in accordance with the 
following instructions.
3.  Otherwise reassemble in the reverse order after adjusting.
8.6.3 REPLACING THE FRICTION WHEEL (Storm, 
Blizzard)
1. Dismantle the right wheel from the shaft.
2.  Loosen the screws (3) and dismantle the bottom plate (2). 
See fig 19.
3.  Remove the screw holding the chain sprocket (12) and 
pull out the shaft (11) and remove the chain sprocket (12). 
See fig 25.
4.  Dismantle the two bearing mountings (16 in fig 20).
5.  Dismantle the shaft and bearing mountings. Note the 
location of the two washers (17 in fig 26).
6.  Replace the friction wheel on its hub (fig 27).
7.  Reassemble all the parts in the reverse order. Note the 
following when reassembling:
- Check that the washers (17 in fig 26) are correctly 
placed.
- Check that the washers (13 in fig 26) are correctly 
placed.
- Check that the shaft (8 in fig 26) rotates freely.
- Check that the friction wheel and disc drive plate are 
totally free from oil and grease.
8.7 REPLACING THE DIFFERENTIAL (FLAKE, 
POWER)
See fig. 28.
The differential (A) is replaced according to the following 
instructions:
1.  Lift the snow thrower forward and rest in on the auger 
housing.
2. Disassemble the wheels.
3. Loosen the screws (3) and dismantle the bottom plate (2). 
See fig. 19.
4. Disassemble the bearing housings (B) with bearings at 
both sides.
5. Loosen the intermediate shaft (C) by disassembling the 
bearing screws (D) at both sides.
6. Slacken the chain tension by loosening the support 
bearing attachment (E). The support bearing attachment 
is loosened by disassembling the two screws at the top.
7. Remove the chain from the differential.
8. Pull out the shafts from the differential and remove the 
differential.
9. Check the chains. Replace if required. The chains shall 
not be lubricated. They are factory lubricated. Excessive 
grease can spoil the friction if it reach the friction wheel 
or the friction disc.
10. Check the bearings for dissonance and uneven friction at 
rotation. Replace if required.
11. Reassemble all parts in the reverse order. 
						

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8.8 REPLACING THE SHEAR BOLTS 
The auger is fastened to the shaft by special bolts that are 
designed to break if something gets stuck in the auger 
housing.
Always use genuine spare parts. Other types of 
bolts could cause serious damage to the machine.
1.  Stop the engine.
2.  - Disconnect the starting cable from the spark plug.
3.  Ensure all the rotating parts have stopped.
4.  Remove the object that has fastened in the auger.
5.  Lubricate the auger shaft (see above).
6.  Assemble the new genuine bolt (N). Do not forget the 
distance (P). See fig 32.
9 STORAGE
Never store the snow thrower with petrol in the 
tank in a confined area with bad ventilation. Petrol 
fumes could reach open flames, sparks, cigarettes 
etc.
If the snow thrower is to be stored for a longer period than 30 
days, the following measures are recommended:
1.  Empty the petrol tank.
2.  Start the engine and let it run until it stops due to lack of 
fuel.
Empty the petrol tank outdoors when the engine is 
cold. Do not smoke. Empty into a container 
designed for petrol.
3.  Change the engine oil if it has not been done for 3 
months.
4.  Remove the spark plug and empty a little engine oil 
(about 30ml) in the hole. Crank the engine a couple of 
times. Screw back the spark plug.
5.  Clean the whole snow thrower thoroughly.
6.  Lubricate all the parts as shown in LUBRICATING 
above.
7.  Inspect the snow thrower for damage. Repair if 
necessary.
8.  Touch up any paint damage.
9.  Rust protect the metal surfaces.
10. Store the snow thrower indoors if possible. 
10 IF SOMETHING BREAKS
Authorised service workshops carry out repairs and 
guarantee service. Always use genuine spare parts.
Do you carry out simple repairs yourself? Always use 
genuine spare parts. They fit perfectly and make the work 
much easier. 
Spare parts are available at your retailer and service station.
When ordering spare parts: Specify the model, year of 
purchase, the engine model and type number.
11 PURCHASE TERMS
A full warranty is issued against manufacturing and material 
defects. The user must carefully follow the instructions given 
in the enclosed documentation.
Warranty period
For consumer use: One year from date of purchase.
For commercial use: Three months from the date of 
purchase.
Exceptions
The warranty does not cover damage due to:
- Neglect by the user to acquaint themselves with 
accompanying documentation
- Carelessness 
- Incorrect and non-permitted use or assembly
- The use of non-genuine spare parts
- The use of accessories not supplied or approved by Stiga
Neither does the guarantee cover:
-- Wear parts such as drive belts, augers, headlights, wheels, 
shear bolts and wires
- Normal wear
- Engines. These are covered by the engine manufacturer’s 
warranties, with separate terms and conditions.
The purchaser is covered the national laws of each by each 
country. The rights to which the purchaser is entitled with the 
support of these laws are not restricted by this warranty. 
						

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