Husqvarna K 770 Manuel D'utilisation page 16

To do a check of the arbor bushing
The arbor bushings are used to attach the product to the
center hole of the cutting blade. The product is supplied
with one of these two types of arbor bushings:
• An arbor bushing that can be turned to the other side
and be applicable for 20 mm/0.79 in. or 25.4 mm/1
in. center holes.
• A 25.4 mm/1 in. arbor bushing.
• A decal on the blade guard shows installed arbor
bushing and specification for applicable cutting
blades.
• Make sure that the dimension of the center hole of
the cutting blade agrees with the installed arbor
bushing. The diameter of the center hole is printed
on the cutting blade.
• Use only HUSQVARNA arbor bushings.
To examine the direction of rotation of
the cutting blade
1. Find the arrows on the rear belt guard that show the
direction of rotation of the spindle shaft.
2. Find the arrow on the cutting blade that shows the
direction of rotation of the cutting blade.
3. Make sure that the direction arrows of the cutting
blade and the spindle shaft have the same direction.
To install the cutting blade
WARNING:
is off and that the stop switch is in the STOP
position.
16
Make sure that the engine
WARNING:
gloves when you assemble the product.
1. Examine the flange washers and the spindle shaft.
To examine the spindle shaft and the flange
Refer to
washers on page 15 .
2. Push back and hold the SmartGuard in the retracted
position.
Note:
This step only applies to K 770 SmartGuard.
3. Put the cutting blade on the arbor bushing (A)
between the inner flange washer (B) and the flange
washer (C). Turn the flange washer until it holds on
to the shaft.
B
4. Put a tool into the hole in the front belt guard and
turn the cutting blade until the shaft is locked.
Always use protective
A
C
1447 - 004 - 04.05.2021