Production > Routers |
Routers
often are used for cutting and shaping
decorative pieces, making frame and panel doors,
and milling moldings. Routers have spindles that
spin variously shaped, small-diameter cutting
tools at high speeds. The tool is held in a
collet chuck and protrudes through a flat,
smooth base that slides over the surface of the
work. The tool-spindle axis is usually vertical,
but it may be tilted. The operator lowers the
head for machining, and the head automatically
returns to its original position after the cut
is made. The spindle is driven by belts and
pulleys or by a high-speed motor.
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Potential
Hazard:
- Inadvertent contact with the
rotating tool or cutter head
when handling the stock or
removing scrap from the table
may cause injuries.
Possible
Solutions:
Engineering
Controls
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Fig
1 - Router with adjustable
tool guard
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Potential
Hazard:
- Clothing or hair may be caught
on a rotating cutter head.
Possible
Solutions:
Engineering
Controls
- Equip routers with a spindle
braking system that gradually
engages.
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Potential
Hazard:
- Tools can be flung from the
cutter head if they are poorly
fastened in the tool holder, if
the wrong tool is used, or if
the tool speed is too high.
Possible
Solutions:
Work Practices
- Attach and secure tools to the
holder properly.
- Label cutting tools and
holders with the maximum
permissible spindle speed.
- Use tools only as intended.
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Potential
Hazard:
- Flying
chips - Wood chips or wood
dust, and splinters may be
thrown by the cutting action.
Possible
Solutions:
Engineering
Controls
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Fig 1 - Router with adjustable
tool guard
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Potential
Hazard:
- Kickback
may be caused by poor-quality
lumber such as if the stock
breaks or incorrect work method,
such as feeding the stock into
the tool too abruptly or in the
wrong direction, or poorly
fixing the stock to the
template.
Possible
Solutions:
Work Practices
- Use quality stock that is
unlikely to break.
- Avoid feeding the stock into
the tool too abruptly or in the
wrong direction.
- Always secure the stock to the
template.
- Use tools only as intended.
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