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Cannon Face Drill Operator

Cannon Face Drill Operator
Start of Shift Activities Work Place Inspection Conduct Pre-Shift Inspection Drill Operation Changing Drill Bits Changing Drill Steel End of Shift Activities
1. Start of Shift Activities
Conduct self assessment
Tag in
Punch time clock
Obtain and put on PPE
Hard hat
Cap lamp
Self-rescuer and mine belt
Eight inch lace up steel toe boots
Safety glasses
ID tag
Obtain and fill water cooler with water
Walk to production shaft
Ensure the man cage to be spotted
Ensure horn is sounded prior to opening shaft gate
Open the shaft gate
Open the man cage door
Enter man cage
Close the shaft gate
Close man cage door
Ride man cage down to the nine hundred foot level after signal is given to hoist operator
Ensure that the horn is sounded prior to opening the man cage door
Open man cage door
Open shaft gate
Exit man cage
Close man cage door
Close shaft gate
Release the man cage
Enter the air-lock
Close air-lock doors
Open inside air-lock door and exit
Close air lock after last person has exited the air-lock
Walk to transportation
Travel to 1600' level shop
Save lunch in lunch room
Attend pre-shift line up with supervisor Priority 2
Location of drill
What to drill in face
Where is the next face
Discuss any maintenance issues
Ensure the room to be drilled is clean and ready to drill
2. Work Place Inspection
Inspect ground conditions for loose scales Priority 3
Back
Face
Ribs
If any loose ground is found, report it to the supervisor. Communicate with the scale operator about scales to be removed. Back drill out if needed
Inspect floor for slip trip and fall hazard Priority 3
If any unsafe condition is found, contact supervisor and/or correct unsafe condition(s)
Fill out work place inspection form immediately after work place inspection is completed
It is the responsibility of the operator to complete the form. If the form is not completed, the employee would be disciplined
3. Conduct Pre-Shift Inspection
Conduct a general walk around of drill
Look for any unusual/unsafe conditions around and under the drill
Look for large puddles of fluid on floor, around and under drill
Check engine oil
Pull dip stick and ensure proper level
Check engine coolant level
Open radiator cap
Ensure engine is not hot prior to opening.
Ensure fluid is visible
Check fuel level
Observe site glass on fuel tank on right rear side of operator cab
Check hydraulic oil level
Observe site glass on left rear side of operator cab
Check compressor oil level
Observe site glass on right rear of chassis
Check V-belts
Visually check for wear, cracks and splits
Check engine compartment guards Priority 3
Ensure guards (6) are in place
Refer to company policy/procedure manual on guarding
Check housekeeping
Check for trash and remove if necessary
Check air filters (engine and compressor)
Observe site glass on the side of engine compartment
Check conditions of tires
Check for peeling, chunks missing, and spinning on the rim
Check wheel lugs
Check for tightness
Ensure that all lugs are there
Check front and rear jacks & pins Priority 2
Check to ensure all pins are in place and are properly retained
Check for hydraulic leaks
Check water hoses
Look for wetness and cracks around the hose
Check hydraulic hose Priority 3
Look for wetness and cracks around the hose and fittings
Check boom swing cylinders & pins
Check to ensure all pins are in place and are properly retained
Check for hydraulic leaks
Check feed tilt cylinders & pins
Check to ensure all pins are in place and are properly retained
Check for hydraulic leaks
Check boom lift cylinder & pins
Check to ensure all pins are in place and are properly retained
Check for hydraulic leaks
Check steering cylinder and pins
Check to ensure all pins are in place and are properly retained
Check for hydraulic leaks
Grease water swivel
Obtain grease gun from cab (behind operator seat)
Place grease hose on grease zerk
Located on top of boom structure
Pump grease gun 5-10 squirts
Damage could occur to seal due to over greasing
Check water swivel
Check for water leaks
Check for loose bolts and tightness of lock nuts
Grease boom & sheaves
Follow operator manual recommended procedure for greasing
Maximum five squirts
Check feed cable
Look for looseness, frays, and alignment
Check re-track cable
Look for looseness, frays, and mis-alignment
Check steel guides
Look for wear, loose bolts, and mis-alignment
Check front cable sheaves
Look for wear and mis-alignment
Check rear cable sheaves
Look for wear and mis-alignment
Check fire extinguisher Priority 3
Check gauge to ensure extinguisher is properly charged
Ensure pin is in place and is secure
Underground mine fires cause carbon monoxide gas, as well as, an oxygen deficient atmosphere which can be explosive with the right mixture of oxygen.
At least one fire fighting system must be operable at all times. If defects are found on both systems, tag-out drill and immediately report to supervisor.
Check fire suppression cartridge & ring pin Priority 3
Check gauge to ensure extinguisher is properly charged
Ensure pin is in place and is secure
Ensure LED indicator is functioning and green light is on
Underground mine fires cause carbon monoxide gas, as well as, an oxygen deficient atmosphere which can be explosive with the right mixture of oxygen.
Ensure drill feed lever is in neutral position
Start engine
Enter cab
Push by pass button
Turn key clock wise
Ensure the Murphy switch is operable Priority 2
Ensure red indicator light is working
If light is not working shut down engine and properly tag out. Notify supervisor.
Listen for working audible alarm
If alarm is not heard shut down engine and properly tag out. Notify supervisor.
Check voltage gauge
Ensure gauge indicator is in the green
Check drill and tram lights
Flip toggle switch to on position
Ensure all lights are on
Check windshield
Check for cracks
Ensure windshield is properly within the seal
Check for wiper operation
Check engine speed control
Flip toggle switch to full position to ensure engine goes to high RPM
Check tram alarm Priority 2
Release parking brakes
Listen for alarm
Check park brakes
Report any safety defects and/or unusual conditions to the supervisor and immediately shut down and tag out equipment Priority 3
Fill out pre-shift inspection form immediately after conducting pre-shift inspection
It is the responsibility of the operator to complete the form. If the form is not completed the employee would be disciplined.
4. Drill Operation
Start engine
Start compressor
Flip toggle switch to on position
Start rotation
Flip toggle switch to forward rotation to left
Turn on water
Ball valve located in cab
Engage air
Valve located on top water valve
Push feed tilt lever down
Drilling the correct angle will ensure that the face will pull the maximum amount
Ensure the correct angle of minus 18 degrees is maintained
Position boom on the first bottom hole on fifth line from right rib.
Push boom swing lever down
Ensure the steel stays straight with the face (perpendicular)
Release boom swing lever when lined over the bottom left hole to be drilled
Push feed extend lever down until drill touches the face
To maintain the optimal efficiency of the drilling operation, it is important to follow the provided drilling sequence listed in the job steps that follow. If obstruction and/or sandstone is encountered, the drill hole locations may have to be moved over a few inches. Start drilling and make setup moves from right to left to stay ahead of cutter.
Push feed lever forward to begin drilling
Observed feed pressure gauge Priority 2
Pressure should read 400 psi maximum. If pressure exceeds 400 psi, adjust feed pressure according to manufacture specification. Pressure chart is posted in cab.
Observe shavings for dust control Priority 2
If area becomes to dusty add water accordingly. If shavings become to wet decrease water.
Listen and look for feed retract
This would indicate the hole is completely drilled.
Pull feed extension lever back to retract the feed extension
Position boom to bottom hole on third line from right rib
Pull the boom swing lever to swing the boom to the right
Ensure that the boom is lined up with the hole then release the lever
To minus 18 degrees.
Ensure the correct angle of minus 18 degrees is maintained
Continue to position boom and drill the remaining bottom holes until you reach the right rib
Pull boom lift lever up to raise boom until marker on chain is even with bottom hole on right rib
Set boom angle to minus 16 degrees
Pull feed tilt lever up
Release lever when minus 16 degree is reached
Drilling the correct angle will ensure that the face will pull the maximum amount.
Position boom to the second hole on the second row on the right rib
Push feed extend lever until boom contacts the face
Ensure marker on chain is even with bottom hole on right rib
Proceed using the procedures to drill holes as specified above
To maintain the optimal efficiency of the drilling operation it is important to follow the provided drilling sequence listed in the job steps that follow
Continue to drill hole up the right rib using the drill/angle pattern chart located in cab
Each row requires a different angle. The angles are as follows: (from bottom up) minus 18, minus 16, minus 12, minus 6, 0 and plus 3 degrees.
Position boom to number two hole on the second row from right rib using the levers and procedures outlined above
Drill the number two hole on the second row of right rib using the levers and procedures outlined above
Continue drilling holes according to pattern from right to left/left to right working up until setup is completed
Shut off rotation
Return boom to center Priority 2
Push boom lift lever down until boom is level with operator cab
Lift on the boom swing lever to swing boom to right until boom is centered with arrow
To prevent drill from tipping over
Lift out riggers
Pull lever toward operator to lift outrigger (there is four different levers that control all outriggers)
Ensure that all outriggers are lowered/raised one at a time
The levers are located on left rear side of operator seat
Release park brakes
Tram drill to next setup
Stand up in the cab
Ensure area is clear before moving to next set up Priority 2
If the cutter is in the room, make sure that you don't back over the cutter cable.
Push tram lever forward and to the right to steer drill away from face and toward the center of the room approximately 50 feet away from the face
Release lever
Pull lever to forward position to tram drill to center of next setup
Steer drill and place boom approximately 3 feet away from face Priority 2
Release tram lever
Apply parking brakes
Exit cab
Walk to rear of drill approximately 30 feet
Visually ensure that the drill is square to the face
If drill is not square to the face reposition drill accordingly
Drill holes starting at the bottom left and continue left to right/right to left, using drill pattern until setup is completed
Use drill controls and procedures as out lined above
Tram drill to third set up
Use tram procedures outlined above
Follow same tram and drill procedure to complete third set up Priority 2
Tram to final set up along left rib
Begin drilling the bottom right hole on the fifth line left of center
Follow drilling procedures as previously out lined
Drill right to left until last hole against left rib is completed
Drill holes up left rib until last hole at back is completed according to drill/angle pattern specification
Set up boom and begin drilling second hole second row
According to drill/angle pattern specification
Continue drilling left to right/right to left until last hole is completed
According to drill/angle pattern specification
Turn off rotation
Turn off air
Turn off water
Center the boom following the same procedure as described above Priority 2
To prevent drill from tipping over
Prepare drill to tram to next room
5. Changing Drill Bits
Lower boom to approximately 4' above floor
Shut drill off
Tag out drill Priority 3
Turn off master key switch located by the door of operator cab next to the second step
Remove key from master switch and place key in drillers pocket
Fill out tag and place on door
Lock out tag out according to company policy
Obtain hammer and new bit from tool box
Located at right rear fender
Don full face shield Priority 3
Hit bit with hammer to loosen bit
Proper PPE as required per company policy
Remove bit (unscrew)
Apply never seize to new bit
Install new bit and hand tighten
Place old bit in bucket
Bucket is located on drill inside cab
Place hammer in tool box
Remove tag from door
Replace master key
Turn master key to on position
6. Changing Drill Steel
Lower boom to approximately 4' above floor
Notify supervisor that steel needs to be replaced
Obtain drill steel
Tag out drill Priority 3
Turn off master key switch located by the door of operator cab next to the second step
Remove key from master switch and place key in drillers pocket
Fill out tag and place on door
Lock out tag out according to company policy
Obtain two 18 inch pipe wrenches from tool box
Tool box located on right rear of drill
Place one pipe wrench on the steel adaptor
To prevent rotation of adaptor
Place second pipe wrench on the steel
Pull second pipe wrench down to break connection
Remove pipe wrenches after the connection is broken
Unscrew steel by hand and remove from steel guides
Place old steel in truck Priority 3
History at this mine shows that steel has entered the mining cycle causing shut downs and loss of production. May put maintenance personnel in dangerous positions to repair or remove steel.
Place new steel in guide
Apply never seize to the threads
Hand screw steel into adaptor until hand tight
Install new bit into steel
Hand tighten new bit into steel
Place tools back in tool box
Remove tag from door
Replace master key
Turn master key to the on position
7. End of Shift Activities
Ensure drill steel is not left in the drill hole
Ensure air, water, and rotation are off
Ensure drill is shut down
Equipment should not be left unattended when it is running
Leave job site approximately 45 minutes prior to end of shift and travel to lunch room
Communicate with supervisor and turn in pre-shift and work place inspection reports
Communicate to supervisor the drilling progress that was completed
Leave lunch room approximately 30 minutes prior to end of shift
Travel to 900' level production shaft
Wait until supervisor calls the man cage (approximately 2-3 minutes)
Enter the air-lock
Close air-lock doors
Open inside air-lock door and exit
Close air lock after last person has exited the air-lock
Ensure the man cage is spotted
Ensure horn is sounded prior to opening shaft gate
Open shaft gate
Open man cage door
Enter man cage
Close shaft gate
Close man cage door
Ride man cage to surface after signal is given to the hoist operator
Ensure that the horn is sounded prior to opening man cage door
Open the man cage door
Open shaft gate
Exit man cage
Close man cage door
Close the shaft gate
Release the man cage
Walk to the change room
Punch out time clock
Save mine light and place on charger
Tag out Priority 2
Replace PPE in personal locker
Walk to vehicle