V-Belt And Pulleys; Blade Mount Bolts And Threads; Accessories; Dust Extraction - Arbortech AS170 Manual De Instrucciones

To reduce the risk of injury, only ARBORTECH,
accessories should be used with this product.
Recommended accessories for use with your tool
are available at extra cost from your local dealer or
authorised service center.
Repairs
If you need any assistance in locating any
accessory, or general tool query please contact
ARBORTECH. www.arbortechusa.com or free call
866-517-7869.
Brushes
The AS170 is fitted with Auto-cut off brushes. When
the brushes are worn below minimum length they
stop tool operation reducing internal motor damage.
Contact your local dealer or authorised service
center for brush replacement.
7.2 V Belt and Pulleys
CAUTION: The V-Belt should be re-tensioned
after the first 5 hours of use.
To access these items, remove the 4 screws holding
the plastic cover on the right side of the tool (see
fig.14). Inspect the belt for correct tension and signs
of damage. If tensioning is required, loosen the the
tension idler nut (one turn only). Slide the tension
idler outward to increase the tension to the value
noted in the General Specifications in Section 3
and re-tighten. If belt replacement is required, loosen
the tensioner idler, replace the belt and re-tension
the idler as specified.
Fig.14
Cover
If excessive slipping has occurred, the pulleys
can become worn. A worn pulley is evidenced by
the groove having lost its well defined "V" shape,
resulting in a rounded or flattened groove. To replace
either pulley, contact your ARBORTECH authorised
service centre.

7.3 Blade Mount Bolts and Threads

The blade cap screws should be regularly checked
for correct torque (18Nm.)(13.2 ft lb).Whenever
blades are changed, the bolt and conrod threads
should be checked to ensure they are not worn or
filled with debris. Use only genuine ARBORTECH
spares and do not lubricate bolts, threads or conrod
mating surfaces.
Fig.15
CAUTION: DO NOT operate the tool with loose
blades. If blades should come loose while
operating, the blade mounts and threads can
become damaged, requiring significant repairs
to the tool.
7.4 Tooth Sharpness
With use, the blades will become dull and the cutting
performance will decrease. Occasionally, if very
hard materials are cut, or the teeth impact a hard
surface at an odd angle, teeth may become chipped
or broken. The blades can still be used, but cutting
performance will be reduced.
If "blueing" of the blade periphery occurs, the
Tension Idler
blades are running too hot. This occurs when the
blades become worn, too much force being used,
insufficient "sweeping" motion by the operator, or
material being too hard.
IMPORTANT To ensure optimal performance and
reduce load on motor, Blades should be kept sharp.

8. ACCESSORIES

8.1 Dust Extraction

The AS170 should be fitted with a dust extraction
funnel, which significantly reduces airborne and
heavy dust when used correctly. It consists of a
fitting attached to the underside of the aluminium
housing and an adjustable extraction funnel which
is replaceable. The dust extraction fitting has a
standard 30mm (1 3/16") bore.
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