Operation - Husqvarna ST 424 Manuel D'utilisation

Before you start the product
• Keep persons and animals away from the work
area.
• Do daily maintenance. See
schedule on page 16 .
• Make sure the ignition lead fits correctly on the
spark plug.
• Add oil or gasoline, if necessary. See
on page 12 .
To fill the engine with oil
CAUTION: Do not rotate the dipstick
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 2 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
If available, use low-emission/alkylate gasoline. If
low-emission/alkylate gasoline is not available, use
good quality unleaded gasoline or leaded gasoline.
Use gasoline with an octane number of 90 RON out
of North America (87 AKI in North America) or
higher, and with a maximum of 10% ethanol (E10).
CAUTION: Do not use gasoline with an
octane number less than 90 RON out of
North America (87 AKI in North
America). This can cause damage to the
product.
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 use the fuel switch (for ST
424/427/430 only)
• Turn the fuel switch to open or close the fuel
valve. Operate the product with the fuel switch in
the OPEN position.
12

Operation

Maintenance
To fill fuel
OFF
To start the engine, manual start
1. Put the ON/OFF key into the ignition slot (B). Do
not turn the key.
A
2. For ST 424/427/430 only: Turn the fuel ON/OFF
switch (C) to the ON position.
3. Put the throttle control (A) to the FAST position.
4. Turn the ON/OFF key to the ON position.
5. For ST 424/427/430 only: If the temperature is
lower than -17 °C (0 °F), push the primer 3 times.
Product overview on page 2 for primer
See
position.
CAUTION: Do not push the primer
too many times. It can prevent the
engine from starting. If the engine is
flooded, wait some minutes before
you try to start. Do not push the
primer.
6. Pull the starter rope handle (D).
CAUTION: Do not release the 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.
FUE
LCO NTR OL
INSTRU CTION S
ON
B
C
876 - 011 - 11.05.2020
D