Assembly - Husqvarna K 770 Vac Operator's Manual

Safety instructions for maintenance
WARNING: Read the warning instructions
that follow before you use the product.
• The user must only carry out the maintenance and
service work described in this Operator´s Manual.
More extensive work must be carried out by an
authorized service workshop.
• Make sure that the engine is switched off and that
the stop switch is in STOP position.
Introduction
WARNING: Read and understand the safety
chapter before you assemble the product.
Cutting blades
WARNING: In order to reduce the risk of
injury or fire do not use bonded abrasive
cutting blades. Use only recommended
diamond cutting blades in combination with
provided flange.
WARNING: A cutting blade may burst and
cause injury to the operator.
WARNING: The cutting blade manufacturer
issues warnings and recommendations for
the use and proper care of the cutting blade.
Those warnings come with the cutting blade.
Read and follow all instructions from the
cutting blade manufacturer.
WARNING: A cutting blade should be
checked before it is assembled on the saw
and frequently during use. Look for cracks,
lost segments (diamond blades) or pieces
broken off. Do not use a damaged cutting
blade.
Husqvarna cutting blades are high speed cutting blades
approved for hand held power cutters.
• A cutting blade should be checked before it is
assembled on the saw and frequently during use.
Look for cracks, lost segments (diamond blades) or
pieces broken off. Do not use a damaged cutting
blade.
• Read and obey the instructions that come with the
cutting blade.
• High-quality blades are often most economical.
705 - 002 - 12.11.2018
• Use personal protective equipment. Refer to
Personal protective equipment on page 6 .
• If the maintenance is not done correctly and
regularly, there is an increased risk of injury and
damage to the product.
• Only do the maintenance as this operator´s manual
recommends. Let a Husqvarna service agent do all
other servicing.
• Let an approved Husqvarna service agent do
servicing on the product regularly.
• Replace damaged, worn or broken parts.
• Always use original accessories.

Assembly

• Lower quality blades often have inferior cutting
capacity and a shorter service life, which results in a
higher cost in relation to the quantity of material that
is cut.
• Make sure that the right bushing is used for the
cutting blade to be fitted on the product. Refer to
Checking the arbor bushing on page 15 .
• Test the integrity of each new cutting blade by
running it at full throttle for about 1 minute.
Correct cutting blades
• Never use a cutting blade for any other materials
than what it was intended to cut.
• Use only a diamond blade made for dry cutting.
• Never use toothed blades such as wood cutting
blades, circular toothed blades, carbide tipped
blades, etc. The risk of kickback is significantly
increased and tips can be torn off and thrown at high
speed. Carelessness can result in serious personal
injury or even death.
• Do not use a diamond blade with a lower speed
rating than that of the power cutter. Use only
diamond blades that are in compliance with national
or regional standards, for example EN13236 or ANSI
B7.1 .
• The cutting blade must be approved for the same or
higher speed rating than that of the product. The
speed rating is specified on the blade guard.
• Many cutting blades that can be attached to this
product are made for stationary saws. The speed
rating of those cutting blades is too low for this
product.
• Select a cutting blade which center hole dimension is
correct with the bushing installed on the machine.
Blade vibration
• The blade can become out-of-round and vibrate if an
excessive feed pressure is used.
WARNING: Read and follow the warning
instructions that follow before you use the
product.
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