Husqvarna P 520D Operator's Manual page 134

2. Look at the blades to see if they are damaged and if
it is necessary to sharpen them.
3. Tighten the blade bolts with tightening torque 80-84
Nm (8.15-8.56 kpm / 59-62 lbft) Nm.
To replace the blades
1. Put the cutting deck in servicing position.
2. Lock the blade with a wooden block.
3. Loosen and remove the blade bolt, the washers and
the blade.
4. Assemble the new blade with the angled ends in the
direction of the cutting deck.
WARNING: Incorrect blade type can
cause objects to eject from the cutting
deck and cause serious injury. Use only
the blades given in
page 142 .
5. Attach the blade, the washer and the bolt. Tighten
the bolt with a tightening torque of 80-84 Nm
(8.15-8.56 kpm / 59-62 lbft) Nm.
To do a check of the engine oil level
1. Park the product on level ground and stop the
engine.
2. Open the engine cover.
3. Loosen the dipstick and pull it out.
4. Clean the oil from the dipstick.
5. Put the dipstick in the dipstick opening. Do not
tighten it.
6. Pull the dipstick out and read the oil level.
134
Technical data on
7. The oil level must be between the marks on the
dipstick. If the level is near the ADD mark, fill oil to
the FULL mark.
8. Slowly fill the oil through the dipstick opening.
Technical data on page 142 of engine oil
Note: See
recommended. Do not mix different types of oil.
9. Tighten the dipstick correctly before you start the
engine. Start and idle the engine for approximately
30 seconds. Stop the engine. Wait 30 seconds and
do a check of the oil level again.
To change the engine oil and the oil
filter
If the engine is cold, start the engine for 1–2 minutes
before you drain the engine oil. This makes the engine
oil warm and easier to drain.
WARNING: Do not operate the engine for
more than 1–2 minutes before you drain the
engine oil. The engine oil becomes very hot
and can cause burn injuries. Let the engine
become cool down before you drain the
engine oil.
WARNING: If you spill engine oil on your
body, clean with soap and water.
1. Put a container below the oil drain plug on the left
side of the engine.
2. Remove the oil drain plug.
3. Remove the dipstick.
4. Drain the oil into the container.
5. Attach the oil drain plug and tighten it.
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