Husqvarna R 418TsX AWD Operator's Manual page 115

10. Put the foam rubber filter back around the air filter
cartridge.
11. Put the air filter cartridge on the air hose.
12. Attach the air filter cartridge with the hose clip.
13. Attach the air filter cover and tighten the knobs.
To examine and replace the spark plug
1. Open the engine cover.
2. Remove the ignition cable shoe and clean around
the spark plug.
3. Remove the spark plug with a spark plug wrench.
4. Examine the spark plug. Replace it if the electrodes
are burned or if the insulation has cracks or
damages. If the spark plug is not damaged, clean
it with a steel brush.
5. Measure the electrode gap and make sure that it is
Technical data on page 129 .
correct. See
6. Bend the side electrode to adjust the electrode gap.
7. Put the spark plug back in and turn it by hand until it
touches the spark plug seat.
8. Tighten the spark plug with the spark plug wrench
until the washer is compressed.
9. Tighten a used spark plug ⅛ of a turn more, and a
new spark plug ¼ turn more.
CAUTION:
tightened correctly can cause damage to
the engine.
CAUTION:
engine if the spark plug or ignition cable
is removed.
To replace the fuses
The fuses are put in 2 groups. The fuses for the mower
control module and the engine are in a holder in front of
the battery. The fuses for auxiliary electrical outputs are
880 - 009 - 31.10.2022
Spark plugs that are not
Do not try to start the
in a holder in front of the hydraulic oil cooler. A blown
fuse is identified by a burned connector.
1. Open the engine cover.
2. Pull the fuse from the holder.
3. Replace the blown fuse.
4. Close the engine cover.
If the fuse blows again a short period after you replace
it, there is a short circuit. Repair the short circuit before
you operate the product again.
To charge the battery
• Charge the battery if it is too weak to start the
engine.
• Use a standard battery charger.
CAUTION:
charger or start booster. That will cause
damage to the electrical system of the
product.
• Always disconnect the charger before starting the
engine.
To do an emergency start of the engine
If the battery is too weak to start the engine, you can use
jumper cables to do an emergency start. This product
has a 12 V system with negative ground. The product
that is used for the emergency start must also have a 12
V system with negative ground.
To connect the jumper cables
WARNING:
of explosive gas that comes from the
battery. Do not connect the negative
terminal of the fully charged battery to or
near the negative terminal of the weak
battery.
CAUTION:
product to start other vehicles.
Do not use a boost
Risk of explosion because
Do not use the battery of the
115