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Oldenburg Cannon Roof Bolter
Contact:  Palmer.Melvin@dol.gov
1. Start of shift activities
Perform self assessment
Observe the parking lot
Observe mobile mine equipment, vehicles, and pedestrian traffic
Obey traffic and warning signs
Be aware of road hazards and traffic patterns
Park vehicle in designated parking lot
Enter change room
Don PPE
Refer to company policy Subtopic
Examine PPE for defects
Hard Hat
Safety Shoes
Safety Glasses
Mine Belt
Hearing Protection
Assure I. D. tag on person
Check self rescuer
Assure seal is in tact/damage
Replace if damaged
Obtain assigned cap lamp
Examine the lens and locking pin, water level and bulb
To assure permissibility
Examine and test light
Remove all smoking articles from possession
Fill water cooler with water and ice
Check tag board to assure mine is clear to tag in
If "mine not clear" do not tag in
Tag in
If "mine not clear" do not tag in
Walk to the man cage
Open shaft gate
Open man cage door
Enter man cage
Close and secure shaft gate
Sound hoist signals
Follow posted hoist signals
Listen for return signal from hoist man
Close man cage door when proper return signal is received
Travel to required mine level
Exit man cage, close and latch door
Watch your step when exiting man cage
Open shaft landing gate, pass through, close and latch gate
Give appropriate hoist signal to hoistman
Travel to lunch room
Communicate with other shift bolter operator
Discuss the operating condition of the bolter and mine condition of work area
Wait for work orders from supervisor
Obtain additional PPE (gloves)
Obtain transportation
Obtain a pre-shift inspection form and conduct inspection
Follow company policy
Travel to the location of the bolter
Observe location of trailing cables
Never run over expose trailing cable
Yield to other mobile equipment
Look for any previously installed fallen bolts
Notify supervisor of fallen bolt
Look for loose scale on rib and roof
Notify supervisor of loose scale and take corrective measures
Be aware of bench area
Benches will be identifies by warning signs, barriers, berms, and ropes
Conduct visual examination of work place
Loose scale on rib and roof
Notify supervisor of loose scale and take corrective measures
Trip and slip hazards
Floors are slippery
Location of power centers and cables
2. Conduct pre op on bolter (power off)
Conduct inventory of required materials
A minimum of 50 bolts and plates required
Bits
Cotter Pins
Two pipe wrenches
Pliers (one set)
Flat File
Hammer
Torque Wrench
Grease gun and cartridges
Anti seizing compound
Obtain necessary materials if needed
Use good material handling techniques and PPE
Conduct walk around safety checks with check list
Structural damage to engine covers
Grab handles
Steps
Broken or damage light housing
Bent or damaged outriggers
Oil leaks
If it is an excessive oil leak, contact maintenance
Condition of cab
Look for maintenance "do not operate" tag
If tag is found, contact maintenance
Obvious boom damage
Broken braces
Bolting package
Feed cable
Centralizer
Stinger
Cable sheaves
Drill steel condition
Drill bit condition
Wheel lugs and tires condition
Hydraulic fluid site glass
Diesel site glass
Coolant site glass
Compressor site glass
Motor oil level
Pelletizer water level
Housekeeping
Fire extinguisher
Follow company policy: the bolter can not be operated if the fire extinguisher pin is removed.
Give trainee information about fire extinguisher checks.
Fire suppression system
Follow Company Policy: do not operate bolter if the suppression system is not operational.
Grease bolter head assembly
Refer to lubrication chart
Follow company lockout-tag out procedures
3. Power on Pre-op Bolter
Pre start up
Remove wheel chocks
Turn on main switch
Enter cab
Use three point contact
Apply park brakes
Ensure pump un loading valve is disengaged
Assure all boom toggle switches are in the neutral position
Assure air compressor switch is off
Assure toggle switch is in low tram mode
Assure engine speed control toggle switch is in auto position
Assure emergency stop button is pulled out
If pushed in, it will not start.
Turn on ignition switch
Observe oil pressure light
Notify maintenance if light does not come on
Press pre-heat glow plug for 15-30 seconds
Press and hold by pass button
This by passes the oil pressure sensor
Rotate ignition key to the start position and release as engine start
Hold by pass button until red low engine oil pressure light goes out
If light remains on, shut down bolter and contact maintenance
Release by pass button
Post start up
Observed return filters plugged indicator light
Shut down bolter and notify maintenance if indicator light stays on after five minutes
Observed hydraulic level light
Increase engine speed to full
Check turret package functions
Tilt
Push lever down to tilt turret in toward the cab
Push lever up to tilt turret out away from cab
Roll
Push lever down to roll package left
Push lever up to roll package right
Secondary stinger
Push lever down to retract stinger
Push lever up to extend stinger
A switched hose could cause machine components to operate incorrectly.
Any malfunction needs to be corrected immediately
Shut down bolter and notify supervisor and maintenance immediately
Check boom controls functions
Swing
Push lever down to swing boom left
Push lever up to swing boom right
Extend/retract
Push lever up to extend boom
Push lever down to retract boom
Raise/lower
Push lever up to raise boom
Push lever down to lower boom
A switched hose could cause machine components to operate incorrectly.
Any malfunction need to be corrected immediately
Shut down bolter and notify supervisor and maintenance immediately
Assure boom is centered
Assure hydraulic hoses are not dragging.
Check all four outriggers are working properly
push to lower
pull to raise
A switch hose could cause machine components to operate in correctly.
Raise outriggers
Raise riggers to assure machine is balanced
Test brakes
If the bolter moves during test, chock wheels, tag out, and notify maintenance.
Engage tram forward
Engage tram in reverse
Turn on tram light
Turn off parks brakes
Audible alarm will indicate brakes are released.
Fill out relevant part of the pre-shift form
If problems arise during shift, make note on form.
Turn in form at end of shift.
4. Tram to work place
Place the boom in a safe zone
Turn off compressor
Raise outriggers
Release brakes
Operate the joy stick
Push forward and hold to move forward
Push back and hold to move in reverse
Push right and hold to move right
Push left and hold to move left
Never disable self centering control
This is a self-centering joystick; if you let go of the joystick, it will return to neutral / stop position.
Ensure safe travel to work place
Observed roof and rib conditions
Yield to other mobile equipment
Do not tram over exposed trailing cables
Tram to work site
Position bolter to begin bolt installation
Work area examination
Observed roof and rib condition
Exposed trailing cables
Other mobile equipment
Exposed hanging cables
Pedestrian traffic
5. Set up in work place
Apply park brakes
Set all outriggers
Place turret in up right position
Assure the turret rotate switch is the drill position
Press and hold reverse rotation toggle switch to assure the magazine is fully rotated.
Place the turret rotate switch to the bolt position
Place turret on floor
Reduce engine motor speed to auto
Assure hydraulic system is unloaded by disengaging unloading valve
Shut off engine
Don PPE
Exit cab
Use three point contact
Proceed to the back side of the turret
Pull up the magazine rotation manual lock
Rotate magazine manually in a counter clockwise direction
Stop rotation at last bolt slot
Place hydraulic line in a safe location
Could slide in and cause problems
Return to the basket in front of the bolter
6. Assemble Bolts
Place bolt bundles on frame of bolter across basket
Remove tie wires from bolt bundles
Do not leave ties on mine floor (house keeping)
Place the nut end of bolts on mine floor
Remove tie wire from bolt plates
Remove expansion anchor shell from bolts
Place the plate on the bolt
Place the embossed side upward
Replace the anchor shell
Prepare ten bolts
7. Load the Bolt Magazine
Carry prepared bolts to the turret
Use correct lifting procedure; do not attempt to carry too many at one time.
Place bolt into the first storage slot
Place plate end down
Rotate the bolt magazine manually clockwise to the next slot.
Repeat installation until bolt magazine is full
Assure all bolts are in place
Rotate clockwise until magazine manually locks into position
Attempt to rotate it counter clock wise to ensure the magazine manual lock is locked.
8. Prepare for Bolt Installation
Enter cab
Use three point contact
Start roof bolter
Engage hydraulic unloading valve
Place engine speed to full
Turn on air compressor and observe gauge
Must obtain 140 psi
Raise boom approximately five feet above floor
Flip turret rotation toggle switch to drill position
9. Install Test Bolt
Maneuver boom tilt and roll function to contact centra stinger against rib
Extend secondary stinger against the rib
Holds in place to prevent further movement
Flip the drill motor feed switch to the forward position using your right thumb and pointer finger
Flip the pelletizer/water switch using your left thumb and pointer finger to the on position.
Place the drill rotation motor switch to the forward position using the left hand
Drilling has started
Drill feed has stop
Flip the drill motor feed switch to the reverse position using your right thumb and pointer finger
Flip the pelletizer/water switch using your left thumb and pointer finger to the off position.
Turn drill rotation motor off
Turn off when drill steel is three feet out of the hole. This cleans out the hole and extends the bit life
Engage the magazine rotation switch forward, loading bolt into grabber
Flip the turret rotate switch to bolt
Engage the feed switch forward
Flip centralizer switch to open position after the bolt has reached two thirds penetration
This permits the plate and motor to pass through the centralizer.
Flip bolt driver switch to forward position once bolt is fully inserted
Observe torque pressure gage to proper torque installation
Torque to 2000 psi. this permits bolt to torque to the proper range
Flip bolter driver switch to neutral position
Place feed switch into reverse position
Retract secondary stinger
Swing boom away from rib once the motor reaches the end of travel
Flip centralizer switch to close position
Flip turret rotation switch to drill
Rotate and center boom to upright position
Lower boom to rest on the mine floor
Switch engine speed to auto
Position torque wrench on the cab floor
Exit cab
Use three points of contact
Remove torque wrench
Proceed to the test bolt
Check bolt torque
Torque to 150 FP
Notify maintenance if torque is incorrect
10. Install Bolt into Roof
Maneuver boom tilt and roll function to contact centra stinger against the roof
Extend secondary stinger against the roof
Holds in place and prevents further movement
Flip the drill motor feed switch to the forward position using your right thumb and pointer finger
Flip the pelletizer/water switch using your left thumb and pointer finger to the on position
Place the drill rotation motor switch to the forward position using the left hand
Drilling has started
Drill feed has stopped
Flip the drill motor feed switch to the reverse position using your right thumb and pointer finger
Flip the pelletizer/water switch using your left thumb and pointer finger to the off position.
Turn off drill rotation motor
Turn off when drill steel is three feet out of the hole
This cleans out hole and extends bit life.
Engage the magazine rotation switch forward, loading bolt into grabber
Flip the turret rotate switch to bolt
Engage the feed switch forward
Flip centralizer switch to open position after the bolt has reach two thirds penetration
This permits the plate and motor to pass through the centralizer.
Flip bolt driver switch to forward position once bolt is fully inserted
Observe torque pressure gage to proper torque installation
Torque to 2000 psi this permit the bolt to be torque to the proper range
Flip bolter driver switch to neutral position
Place feed switch into reverse position
Retract secondary stinger
Lower boom away from roof once the motor reaches the end of travel
Flip centralizer switch to close position
Flip turret rotation switch back to drill
Swing boom over to next bolt location
Place bolts approximately six feet apart unless conditions warrants
Bolt pattern will be according to supervisor instructions
Tram to the next location
See Duty: "Tram to the Workplace"
11. End of Shift Activities
Tram bolter to a safe location
Lower outriggers
Apply park brakes
Turn on air compressor switch
Exit cab
Use three points of contact
Unwrap wash down hose
It is mounted on the front right side of the cab.
Turn on water valve
Wash turret structure
This removes the pelletizing slurry from key components and prevents wear
Turn off water
Hang up the wash down hose
Enter cab
Use three points of contact
Turn off compressor switch
Swing boom to rib
Minimize damage by passing mobile equipment
Lower boom approximately one foot above floor
Assure all switches are in neutral position
Place engine speed control switch to auto
Disengage unloading valve
Turn off ignition
Exit cab
Use three point contact
Turn off main switch
Chock wheels
This prevents unplanned movement.
Travel to production office
Complete roof bolting report
Turn in pre-shift report
Document discrepancies on work request form.
This initials the work order process
Communicate with the on coming roof bolter operator
Walk to the man cage
Open shaft gate
Open man cage door
Enter man cage
Close and secure shaft gate
Sound hoist signals
Follow posted hoist signals
Listen for return signal from hoist man
Close man cage door when proper return signal is received
Travel to surface
Exit man cage, close and latch door
Watch your step when exiting man cage
Open shaft landing gate, pass through, close and latch gate
Give appropriate hoist signal to hoistman
Enter change room
Tag out
Place mine light on charger
This ensures the light is ready for use on your next scheduled shift
12. Replace Worn Steel
Tilt turret forward
Lower boom to comfortable working height
Place all switches in neutral position
Turn off compressor switch
Place engine speed control to auto
Disengage unloading valve
Turn off engine
Remove key from ignition
Lock out tag out
Refer to company lock out tag out policy
Exit cab
Use three point contact
Acquire two pipe wrenches
Wrenches are found in tool box out side cab
Unscrew steel
Remove steel
Place worn / broken steel in basket until end of day
Operator will dispose of damaged steel at end of shift in designated area
Obtain steel from storage
Apply anti-seizing compound to steel threads and adaptor
Replace with new steel by screwing steel into adaptor
13. Replace Worn Bit
Tilt turret forward
Lower boom to comfortable working height
Place all switch in neutral position
Turn off compressor switch
Place engine speed control to auto
Disengage unloading valve
Turn off engine
Remove key from ignition
lock out tag out
See company policy
Obtain hand tools
Pliers
Hammer
Screw driver
Obtain replacement bit and cotter pin
Exit cab
Use three point contact
Travel to turret
Remove old bit and pin
Operator will dispose of damaged bits at end of shift in the designated area
Replace with new bit and cotter pin
New bit will drill faster
About
Title
Oldenburg Cannon Roof Bolter
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Company
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Author
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Version
370
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