Husqvarna ST 424 Operator's Manual page 17

• Make sure the ignition lead fits correctly on the spark
plug.
• Add oil or gasoline, if necessary. See
page 17 .
To fill the engine with oil
CAUTION:
when you check the oil. Do not fill above the
mark.
1. Remove the oil cap and clean the dipstick. See
Product overview on page 11 for the location of the
dipstick.
2. Add oil to the top mark on the dipstick. Use the
dipstick to do a check of the oil level at regular
intervals.
3. Put the oil cap back.
To fill fuel
Do not use gasoline with an octane number less than 90
RON (86 AKI.) These engines operate best on unleaded
gasoline.
CAUTION:
• Do NOT use expired gasoline, gasoline
with contamination or an oil/gasoline
mixture.
• Do not get dirt or water in the fuel tank.
• Only use correct fuel containers and
make marks to easier identify them.
• Do NOT use E85 mix fuels.
These engines are not E20/E30/E85
compatible.
• The ethanol contents must be maximum
10%.
1. Open the fuel tank cap slowly to release the
pressure.
2. Fill slowly with a fuel can. If you spill fuel, remove it
with a cloth and let remaining fuel dry off.
3. Clean the area around the fuel tank cap.
4. Tighten the fuel tank cap fully. If the fuel tank cap is
not tightened, there is a risk of fire.
5. Move the product a minimum of 3 m (10 ft) from the
position where you filled the tank, before a start.
To start the engine, manual start
1. Put the ON/OFF key into the ignition slot (B). Do not
turn the key. (Fig. 64)
2. Put the throttle control (A) to the FAST position.
3. Turn the ON/OFF key to the ON position.
4. Pull the starter rope handle (D).
876 - 019 - 05.10.2023
To fill fuel on
Do not rotate the dipstick
CAUTION:
starter rope handle quickly. Move it
slowly to the start position.
Note:
If the starter rope is frozen, slowly pull out
as much rope out of the starter as you can. Release
the starter rope handle. If the engine does not start,
do the procedure again or use the electric starter.
5. Run the engine 2-3 minutes at low speed before you
start to throw snow.
6. If the engine does not run smoothly, turn it off.
To start the engine, electric start
1. Put the ON/OFF key into the ignition slot (B). Do not
turn the key.
2. Put the throttle control (A) to the FAST position.
3. Put the ON/OFF key to the ON position. (Fig. 64)
4. Turn the ON/OFF key to START. When the engine
starts, release the key.
CAUTION:
more than 5 seconds each time you try
to start. Wait 5 to 10 seconds between
each try.
5. Run the engine 2-3 minutes at low speed before you
start to throw snow.
To operate the product
CAUTION:
drive or auger levers for an extended period
of time; this can lead to premature wear or
burning of the belts.
Note:
When both the drive engagement and auger
engagement are engaged, the drive engagement will
lock the auger engagement in position. Use the right
hand to control the snow discharge chute.
1. To engage the auger blades, push the auger
engagement (A) to the handle to engage the auger
and throw snow. (Fig. 65)
2. Raise the drive speed control lever (C) from the
middle position to make the product move forward
when the drive engagement (B) is engaged.
3. Lower the drive speed control lever from the middle
position to make the product move rearward when
the drive engagement is engaged. (Fig. 66)
4. To make the product move in the selected direction,
hold the drive engagement against the handle .
5. If the product has power steering, hold the left
steering trigger (D) to turn left. Hold the right steering
trigger to turn right. (Fig. 67)
Do not release the
Do not run the starter for
Do not partially engage
17