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2. TEACH MY LEARNERS:
• The ability to make better decisions
• To make them communicate with staff
• To be able to gain more confidence in execution of the proper
work procedures and physical drilling practices.
• To teach my learners new knowledge and skills to be able to
maximise the output.
• Because you are all adults, you need a little bit more time.
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3. PROPER MATERIAL LOADING
SEQUENCE
1. To place your rods,bitsspares and other equipment at the
bottom of the material car.
2. Place parts on the car as they are taken from the drill.
3. Ensure no protrusions from the car.
4. Look out not to damage any machine parts.
5. Tie all bars together to prevent rolling and skidding
movements.
6. Place your controls and lubricator together as a unit on
the car.
7. Place the machine and other equipment on the car in an
easily removable position.
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4. A DEFINITE TOOL IS TO DO TROUBLE SHOOTING
OR PREVENTATIVE MAINTENANCE.
Look at the following:
• We want to maximise the efficiency of the drilling operations; in order to do that,
we have to do the following:
• Check the condition of the drill rods regularly for the following:
• Stress cracks in the coupling at the male end of the rod.
• Keep your rods clean.
• Rotate your rods more often.
• Keep the threads clean.
• Watch for excessive water coming out of the coupling.
• Check the drill bit for fractures on the sides.
• Check for buttons moving within the steel
• Check for any other cracks in the neck and body of the bit.
• Check the condition of the buttons and degradation.
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5. DEVIATION PROBLEMS THAT OCCUR ARE DUE
TO THE FOLLOWING:
• Poor drilling practices: you curb them by doing the following
• Set up your machine accurately and on line. Laser line-up tools can
improve the set up accuracy.
• To use reliable and accurate angle finding instruments (protractor), do
setup at the proper angles.
• To collar slow and careful and regular checks of angle are necessary,
adjust if required.
• Drill two to three meter and check angles again, if required adjust
accordingly.
• Please us a guide adaptor and place it directly behind the bit at the start
and this will prevent deviation, they should be placed every 2 to 3 drill
steel intervals over the full length of the drill string.
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6. TO HAVE THE FOLLOWING SAFEGUARDS IN
PLACE TO SUCCEED IN YOUR QUEST TO BE A
SAFE COMPETENT DRILLER
• Keep clear of rotating equipment and never wear loose hanging clothing.
• Always adhere to good housekeeping and keep your site clean.
• Do not operate the equipment while under the influence, drugged or medication.
• Wear your personal protective equipment pertaining to your job; hard hat, safety
glasses, steel toe-cap gumboots.
• Always wear hearing protection( ear plugs or ear mufs)
• Do not change or alter the drill, its components, optional equipment or accessories
without approval and proper consultation.
• Make sure you are fully conversant with the function of each lever on the control bank,
and each of the ramifications if operated incorrect, remember we have to work efficient,
but safe.
• Comply to all health and safety requirements couple to the operation of the drill and
equipment.
• Remember to keep all visitors a safe distance away from moving equipment/ work area
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7. FLUSHING OPTIONS AVAILABLE
1. The 2 types are the following: Internal- or External.
2. Internal flushing uses a water tube that fits through the centre of the
drill and into an o-ring seal in the end of the shank, that’s to transfer
flushing into the drill string (NB: Check the condition and replace if
necessary)
3. External flushing, done through holes on the side of the shank adapter,
thes line up between seals inside the front head or water box of the drill
when your shank is installed. Water, the flushing medium, is supplied
directly to this device and is introduced into the drill string through the
shank.
4. Normally external flushing is considered superior to internal flushing,
as greater volumes of flushing agent(water), can be delivered with less
risk of leakage and hammer damage from water.
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8. TO SHOW SOME PICTURES/SKETCHES AND TO
EXPLAIN WHAT I MEAN WITH CARE AND HANDLING:
1. Bit wear overview.
2. Bit wear patterns.
3. Double jack assembly and machine- & universal- clamp plus safety
clamp complete.
4. Practical assessment possibilities.
5. Five point safety system- safety tool to all.
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