Husqvarna ST 424 Manual De Usuario página 20

Maintenance
Lubricate the in-
1
terlock catches
Lubricate the ca-
2
ble attachments
Do a check of the
tire pressure (on-
ly ST
424/427/430 )
Inspect and re-
place the spark
plug before use
at the start of a
season and at
recommended in-
terval
Note:
The gearbox does not need maintenance.
To do a general inspection
• Make sure that all nuts and screws on the product
are tightened correctly.
Oil change reminder
The oil change reminder (A) is a function that points out
that an oil change is necessary. The oil change reminder
lights up the oil can symbol on the display after 20 hours
of operation. The oil can symbol is then on for 2 hours or
until a manual reset is done.
(Fig. 77)
To reset the oil change reminder
1. Turn the ON/OFF key to the ON position, and keep it
in the ON position for 1 second.
2. Turn the ON/OFF key to the STOP position, and
keep it in the STOP position for 1 second.
3. Do this procedure 4 more times.
To do a check of the oil level
CAUTION:
damage to the engine. Do a check of the oil
level before you start the product.
1. Put the product on level ground.
2. Remove the oil tank cap with the attached dipstick.
3. Clean the oil from the dipstick.
4. Put the dipstick fully into the oil tank to give a correct
picture of the oil level.
1
Also lubricate at the beginning of each season.
2
Also lubricate at the beginning of each season.
20
At 15 hour inter-
Daily
vals
A too low oil level can do
At 20 hour inter- At 40 hour inter-
vals
X
X
5. Remove the dipstick.
6. Examine the oil level on the dipstick.
7. If the oil level is low, fill with engine oil and do a
check of the oil level again.
To replace the engine oil
1. Run the engine a few minutes to make the oil
warm. Warm oil flows better and includes more
contaminants.
WARNING:
Avoid skin contact with the used engine
oil.
2. Put the product on level ground.
3. Remove the ON/OFF key.
4. Put a container below the oil drain plug.
5. Remove the oil drain plug, tip the product and drain
the used oil in the container.
6. Put the product back to the operating position.
7. Install the oil drain plug and tighten it by hand.
8. Fill the engine with oil, see
on page 17 .
To lubricate the product
• Lubricate the pivot points (A) with oil.
• Lubricate the engine (B) with oil.
• Lubricate the interlock catches (C) with a small
quantity of lithium grease.
• Lubricate the cable connections for the drive and
auger levers (D) with oil. (Fig. 78)
At 100 hour inter-
vals vals
X
X
The engine oil is hot.
To fill the engine with oil
876 - 019 - 05.10.2023