Husqvarna DT18 C Operator's Manual page 19

Spark plug
The engine spark plug is hidden under the ignition
cable shoe. When performing service, it is
important that the engine cannot start accidentally.
For this reason, always remove the ignition cable
shoe from the spark plug. To avoid pulling the
cable, the cable shoe is equipped with a special
handle; see the illustration.
Type of spark plug, see chapter "Technical data".
Service instructions, see chapter "Maintenance/
Ignition system".
Muffler
The engine muffler is equipped with a heat
protective cowling. Nonetheless, it still becomes hot
when the engine is running. Avoid touching the
muffler when it is warm. Risk for burns.
Oil dipstick
The dipstick for the crankcase oil reservoir is
located on the front of the engine. Refill the engine
oil in the hole where the dipstick fits.
When checking the oil level, the dipstick should
not be screwed in. The machine should be parked
on even ground with the engine stopped. Never
run the engine without the dipstick in place. The
engine has an electronic oil level guard. It stops
and cannot be started if the level becomes too low.
Yet you should not rely entirely on the level guard;
rather you should check the oil using the dipstick.
For normal use, we recommend SAE 10W-30-
weight engine oil service SF-SG; see also the
chapter "Lubrication/Engine oil".
Oil drainage
The drainage screw for the crankcase oil reservoir
is located on the front of the engine.
IMPORTANT INFORMATION
Used engine oil is a health hazard and
legislation prohibits disposal on the ground
or in nature; it should always be disposed of
at a workshop or appropriate disposal
location. Avoid skin contact; wash with soap
and water in case of spills.
Engine switch
The engine switch stops the engine. The illustration
shows the switch in the OFF position (short
circuited electrical system). To start the engine, the
switch must be first set to the ON position.
PRESENTATION
8011-027
8011-020
8011-021
8011-026
English – 17