5
Normal and prohibited use
NORMAL USE
The machine is designed for the following work and is equipped with protective devices for these
processes only:
- Planing the wide surface of workpieces on the planer unit;
- Planing the narrow side of workpieces on the planer unit;
- Beveling an edge on workpieces on the planer unit;
It is not designed to work materials such as ferrous and non-ferrous metals, work different from that
stated below is prohibited.
PROHIBITED USE
The following are prohibited on the jointer:
- Down cut planing i.e. when the feeding direction and the planer’s arbor rotation and direction are
the same and the outfeed planer table is set lower than the infeed table
- Insertion cuts on the planer unit, i.e. when the workpiece is not worked along its entire length; -
The use of other materials than wood, such as ferrous or non-ferrous materials.
REMAINING RISKS
The most common accidents on the jointer are due to the direct contact of the tree in rotation and
training therein, the brutal ejection of pieces of wood, knots, for example, and the sharp decline of the
workpiece.
The main areas of risk are:
- The rotation area of the tool
- The area of moving mechanical parts
- The area of the rejection of the wood
Despite the use of the specific protectors and the application of the rules of safety and hygiene, there
are still during the use of the jointer of latent risks.
- Risk of injury to change and editing tools (cuts in touch to irons);
- Unintentional contact of the hands with the running planer arbor;
- Workpiece kickback;
- Tipping over of the workpiece due to insufficient support; - Ejection of knots, etc.
Woodworking tools run at very high speeds. Sometimes workers approach the tools forgetting that
they are running down. Sometimes, because of the stroboscopic effect of alternating current
workshop lighting on rotating tools, workers believe that they have come to rest when they have not.
Operators can also switch off the power to the tools and leave the machine to run down unattended.
These possibilities put workers at risk.
When considering the risks from dangerous machinery such as that used in woodworking operations it
is easy to become focused only on the safety risks.
However, risks to the health from manual handling, dust, fumes, noise, hand/arm vibration etc. are
equally important, and you should consider them in your risk assessment. There are health risks
through prolonged inhalation of particles, especially oak, beech or other exotic sorts of wood.
Deafness through prolonged exposition to noise.
TYPES OF TOOLS
The commonly used combination irons are either fast steel “HSS” irons, iron carbide “K”.
The minimum length of the blades which can be mounted on the tool rest is 510mm.
The height of a worn knife must measure at least 20 mm.
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