Husqvarna K 770 Vac, Operator'S Manual

Page: 15 / 104

flange washers. Use only flange washers of
the same dimension.
Examine the spindle shaft and the flange washers when
the cutting blade is replaced. Replace damaged parts.
1. Make sure that the threads on the spindle shaft are
not damaged.
2. Make sure that the areas of contact on the cutting
blade and the flange washers are not damaged.
3. Make sure that the flange washers are clean and of
the correct dimension.
4. Make sure that the flange washers run correctly on
the spindle shaft.
Checking the arbor bushing
The arbor bushings are used to fit the machine to the
centre hole of the cutting blade. The machine is supplied
with either a bushing that can be flipped over to fit
blades with either 20 mm or 1" (25,4mm) centre holes,
or with a fixed 20 mm bushing.
• A decal on the blade guard indicates which bushing
has been factory fitted together with appropriate
blade specification.
Use only Husqvarna arbor bushings.
• Make sure that the arbor bushing has the correct
dimension for the cutting blade. The correct
dimension is printed on the cutting blade.
To examine the direction of the rotating
cutting blade
1. Find the arrow on the blade guard that shows the
direction in which the cutting blade rotates.
2. Find the arrow on the cutting blade that shows the
direction in which the cutting blade rotates.
3. Make sure that the arrows on the blade guard and
the cutting blade show the same direction.
To attach the cutting blade
WARNING: Make sure that the engine is off
and that the stop switch is in STOP position.
WARNING: Always use protective gloves
when you assemble the product.
1. Examine the flange washers and the spindle shaft
when the cutting blade is attached. Refer to
To
examine the spindle shaft and the flange washers on
page 14 .
2. Put the cutting blade on the bushing (A) between the
inner flange washer (B) and the flange washer (C).
A
C
B
705 - 002 - 12.11.2018 15