Principles of Construction
Safety First! Part I
Safety Materials for Drill Press,
Belt Disk Sander and Router
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GENERAL SAFETY RULES
1.
2.
3.
4.
5.
6.
7.
Wear protective eyewear.
Roll up long sleeves.
Tie back long hair.
Tuck in shirt and loose clothing.
Remove jewelry.
Do not distract machine operator.
Wear closed toed shoes.
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MAJOR PARTS OF THE
DRILL PRESS
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Switch
Quail lock
Chuck
Table
Depth gauge
Feed handles
Column
Bit
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MAJOR PARTS OF THE
DRILL PRESS
1.
2.
3.
4.
The quail lock is a clamp to lock the drill at a specific depth.
The chuck holds the cutter used in the drill to cut holes.
The table supports the materials being drilled on machine.
The depth gauge is used to adjust the drill to stop at a
specific depth.
5. Feed handles are used to advance the drill bit in to the
material.
6. The column is a post that holds the machine.
7. The bit is the cutter that drills holes in materials.
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SAFETY RULES FOR THE
DRILL PRESS
1. Drill bits larger than 3/8” are used at the
slowest machine speed.
2. Remove the chuck key from the chuck
before starting the machine.
3. Be careful of wind motion around the
chuck. It will pull in loose hair and
clothes.
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SAFETY RULES FORTHE
DRILL PRESS
4. Remove all extra materials and tools from
machine when in operation.
5. Clamp all small parts in a vise or clamp.
6. Use bits made with straight shanks to fit in
drill chuck.
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MAJOR PARTS OF THE
BELT DISK SANDER
Belt
Belt Tracking
Adjustment
Belt Tension
Adjustment
Switch
Disk
Table
Table Tilt
Adjustment
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MAJOR PARTS OF THE
BELT DISK SANDER
1. The belt is the abrasive belt used to sand surfaces
and edges.
2. The disk is the abrasive material cut in a disk
and is used to sand edges and end grain.
3. The belt tracking knob is an adjustment to keep
the belt on the sander wheels, which is called
tracking.
4. The belt tension knob is used to tighten the belt
in the machine.
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SAFETY RULES FOR THE
BELT DISK SANDER
1. Be certain the belts and disk are correctly
mounted.
2. Use the tables and fences to hold the material
while sanding.
3. Small or irregular shapes should be held in
clamps or in a special jig.
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SAFETY RULES FOR THE
BELT DISK SANDER
4. Sand only on the downward side of the disk
sander.
5. Sand only on clean wood, not painted,
excessively glued or finished.
6. Keep the material moving across the abrasive to
prevent burning due to friction.
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DIFFERENT TYPES OF
PORTABLE SANDERS
Finish Sander
Square Finish
Sander
Belt Sander
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SAFETY RULES
PORTABLE SANDERS
1. Watch power cords on sanders. Do not get cords under
sanders.
2. Clamp material to be sanded.
3. Use handles on equipment to protect your hands and
control the tool.
4. Make all adjustments with the power cord unplugged.
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DIFFERENT TYPES OF
ROUTERS
Handheld Router
Plunge Router
Table Router
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MAJOR PARTS OF THE
ROUTER
Motor
Bit
Collet
Base
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MAJOR PARTS OF THE
ROUTER
1. The base is the bottom portion where the handles
and motor are located.
2. The motor is a high RPM electric motor that has
the collet machined into the end of the shaft.
3. The collet is a tapered holding device used to
hold the bits in the machine.
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SAFETY RULES FOR THE
ROUTER
1. When using a hand held router, the work must
be clamped down with a vise or a clamp.
2. Disconnect the router before changing the bit.
3. After adjusting the router depth, you should
lock the motor and base together.
4. The router bit should be inserted at least 1 inch
into the collet.
5. The router should be fed into the material against
the rotation of the cutter.
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SAFETY RULE WEB SITE
Career and Technical Education at UNT Manufacturing
Curriculum:
http://www.cte.unt.edu/manufacturing/curriculum.html
Safety Rules and Videos:
http://www.powertoolinstitute.com/pti_pages/safety.asp
Simple Safety Rules:
http://www.mentorsearch.us/docs/mech/texas_safety.pdf
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