Abrasive Blades; Diamond Blades - Husqvarna K970 II Rescue Operator's Manual

Blade vibration
• The blade can become out-of-round and vibrate if an
excessive feed pressure is used.
• A lower feed pressure can stop the vibration.
Otherwise replace the blade.

Abrasive blades

WARNING! Do not use abrasive blades
!
with water. The strength is impaired
when abrasive blades are exposed to
water or moisture, which results in an
increased risk of the blade breaking.
• The cutting material on abrasive blades consists of
grit bonded using an organic binder. "Reinforced
blades" are made up of a fabric or fibre base that
prevents total breakage at maximum working speed if
the blade should be cracked or damaged.
• A cutting blade's performance is determined by the
type and size of abrasive corn, and the type and
hardness of the bonding agent.
• Ensure the cutting blade is not cracked or damaged.
• Test the abrasive blade by hanging it on your finger
and tapping it lightly with a screwdriver or the like. If
the blade does not produce a resonant, ringing sound
it is damaged.
Abrasive blades for different materials
Blade type Material
Concrete, asphalt, stone masonry,
Concrete blade cast iron, aluminium, copper, brass,
cables, rubber, plastic, etc.
Steel, steel alloys and other hard
Metal blade
metals.
10 – English
CUTTING BLADES

Diamond blades

General
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Diamond blades for different materials
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Sharpening diamond blades
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WARNING! Never use a diamond blade to
!
cut plastic material. The heat produced
during cutting may melt the plastic and it
can stick to the cutting blade and cause a
kickback.
Diamond blades become very hot when
used. An overheated blade is a result of
improper use, and may cause
deformation of the blade, resulting in
damage and injuries.
Cutting metal generates sparks that may
cause fire. Do not use the machine near
ignitable substances or gases.
Diamond blades consist of a steel core provided with
segments that contain industrial diamonds.
Diamond blades ensure lower costs per cutting
operation, fewer blade changes and a constant cutting
depth.
When using diamond blades make sure that it rotates
in the direction indicated by the arrow on the blade.
Diamond blades are ideal for masonry, reinforced
concrete and other composite materials.
Diamond blades are available in several hardness
classes.
Special blades should be used when cutting metal.
Ask your dealer for help in choosing the right product.
Always use a sharp diamond blade.
Diamond blades can become dull when the wrong
feeding pressure is used or when cutting certain
materials such as heavily reinforced concrete.
Working with a dull diamond blade causes
overheating, which can result in the diamond
segments coming loose.
Sharpen the blade by cutting in a soft material such as
sandstone or brick.