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	Shaft Worker
	Contact:  Palmer.Melvin@dol.gov

Home   1. 1. Start-of-Shift Activities    Sign in at mailbox   Proceed to dry house to change...    Check in at lamp house or dry ...    Obtain PPE   Obtain belt with tag   Obtain cap lamp   Obtain crew phone   Attend crew meeting   2. 2. Enter shaft   Ensure W65's are in bucket wit...    Enter bucket   Check ears on bucket    Watch for slippery bottoms in ...    Top man signals hoist operator...    Hold on to the bail   Keep all body parts inside of ...    Do not ride/sit on rim of buck...    Keep knees bent   Don't ride with supplies in bu...    Observe for rocks on service l...    Observe ribs below the concret...    Be prepared for stop at bottom...    Exit bucket when it reaches th...    Scale down loose material from...    Crew meeting   3. 3. Drilling   Hook up drill rig   Have drill put in shaft on cen...    Re-enter shaft   Hook up air hoses   Hook up water lines   Bell/call out for air/water   Crib under suspended drill rig   Bell hoist down   Discuss drill pattern   Turn on air valve on Jumbo   Install drill steels on hammer...    Drill center hole    Raise Jumbo back up    Re-stack cribbing on Jumbo rig   Put Jumbo back on center   Crib under suspended drill rig   Bell hoist down   Discuss drill pattern   Turn on air valve on Jumbo   Install drill steels on hammer...    Drill production hole

Shaft Worker 1. 1. Start-of-Shift Activities Sign in at mailbox Proceed to dry house to change cloths Check in at lamp house or dry house Obtain PPE hard hat with hearing muffs and/or ear plus safety glasses metatarsal boots leg bands metacarpal gloves florescent and reflective vest respirators (when needed) rain suits (when needed) rubber knee boots (when needed) Obtain belt with tag Obtain cap lamp Do not smoke in charging area; cap lamps give off hydrogen gas while charging check water level fill to line with cap lamp fully charged do not over fill check for charge check the beams check lens lock check cord for damage Obtain crew phone check battery posts for tightness check phone by blowing into receiver and push button - listen for sound check terminal posts for wire connections Attend crew meeting discuss conditions discuss assignments 2. 2. Enter shaft Ensure W65's are in bucket with crew or worn Enter bucket No more than 6 persons Step on counter-weight and put your leg over the rim Check ears on bucket Watch for slippery bottoms in bucket Top man signals hoist operator to lower bucket Hold on to the bail Keep all body parts inside of bucket Do not ride/sit on rim of bucket Keep knees bent in case of sudden stop Don't ride with supplies in bucket - personnel only Observe for rocks on service line and vent tube brackets No one can work on bottom if rocks need cleaned from brackets Observe ribs below the concrete and behind the panning tin for loose material and make plans to scale down loose materials after reaching bottom Be prepared for stop at bottom limit about 40 feet from bottom Exit bucket when it reaches the bottom Be prepared for bucket landing on uneven surface Don't exit the bucket until all motion is stopped Watch your footing wet bottom uneven ground loose material water depth Scale down loose material from bucket Obtain scale bar and picks Bucket up to location Don't attempt to pry down materials above your head Don't over-reach Scale loose material with pick or bar Crew meeting Talk to on-shift crew Discuss rib conditions Discuss equipment problems 3. 3. Drilling Hook up drill rig Have drill put in shaft on center hoist operator will swing drill off center at bottom Re-enter shaft follow all safety precautions outlined in entering shaft Observe for adequate clearance when re-entering shaft after drill rig is set (drill rig is on center) Hook up air hoses install whip checks air pressure averages 120 psi Hook up water lines install whip checks Bell/call out for air/water Refer to bell signal card Crib under suspended drill rig Use cribbing and wedges Install wedges until snug under drill Don't beat the wedges in Bell hoist down Should be a slight amount of slack in the rope Refer to bell signal card Discuss drill pattern Marked on drill hammer refer to drill pattern drawing Turn on air valve on Jumbo Install drill steels on hammers raise hammer put steel straight up and down underneath hammer let hammer down gently onto the steel use rotation lever to slowly rotate hammer rotation lever is labeled raise the hammer pull swing locking pin Drill center hole boss will drill center hole Lower hammer turn water on turn on rotation and percussion Adjust pressure accordingly comes with experience varies by rock types Begin drilling (center holes) Keep hand off of rotating drill steel Never hold onto the steel Keep clothing away from rotating drill steel Never wear loose clothing Observe bottom for old holes/gun holes Never drill into an old hole/gun hole drill approximately 18" shut hammer off Never run hammer outside of hole shut off water pick up hammer insert collar pipe in hole remove collar pipe bit lower hammer turn percussion on raise hammer unscrew collar pipe bit by hand left-hand thread install powder bit screw on by hand left-hand thread turn water on water must be seen while drilling Lower bit into collar pipe maintaining same angle as installed collar pipe turn percussion and rotation on adjust down pressure continue drilling until reaching pre-determined depth never drill into the centralizer shut hammer off once you get to depth turn on the air valve and blow the hole out raise hammer put swing locking pin back in Raise Jumbo back up refer to bell signal card Re-stack cribbing on Jumbo rig Put Jumbo back on center Crib under suspended drill rig Use cribbing and wedges Install wedges until snug under drill Don't beat the wedges in Bell hoist down Should be a slight amount of slack in the rope Refer to bell signal card Discuss drill pattern Marked on drill hammer refer to drill pattern drawing Turn on air valve on Jumbo Discuss location of air valve shut off Install drill steels on hammers (if necessary) raise hammer put steel straight up and down underneath hammer let hammer down gently onto the steel use rotation lever to slowly rotate hammer rotation lever is labeled raise the hammer pull swing locking pin Drill production hole tram drill to rib holes Turn lever on Walk and guide hammer to desired location Turn lever off before drilling never leave valves turned on or leave hammer unattended 0bserve rib conditions never drill with your back to the rib Scale ribs if necessary Tilt hammer vertically until indicator shows hammer is plumb Lower hammer Never drill into an old hole/gun hole turn water on Water must be seen while drilling turn on rotation and percussion Adjust pressure accordingly comes with experience varies by rock types Drill at specified angle for each row Refer to indicator for proper angle refer to drill pattern diagram Begin drilling (production holes) Keep hands off of rotating drill steel Never hold onto the steel Keep clothing away from rotating drill steel Never wear loose clothing Observe bottom for old holes/gun holes Never drill into an old hole/gun hole drill approximately 18" shut hammer off never run hammer outside of hole shut off water pick up hammer lay out outside row of drill pattern Refer to drill pattern diagram Keep drill hammers evenly spaced while drilling - don't crowd hammers all to one side to prevent tipping over mark outside row of drill pattern with orange paint insert collar pipe normally plumb for rib holes tram hammer to next row Refer to drill pattern diagram and tilt for row Tilt hammer until indicator shows correct angle Angles change with each row Repeat collar pipe procedure until pattern is finished remove collar pipe bit lower hammer turn percussion on raise hammer unscrew collar pipe bit by hand left-hand thread install powder bit screw on by hand left-hand thread turn water on water must be seen while drilling never drill into an old hole/gun hole lower bit into collar pipe maintaining same angle as installed collar pipe turn percussion and rotation on adjust down pressure continue drilling until reaching pre-determined depth never drill into the centralizer Keep water pumped out use water tank shut hammer off once you get to depth turn on the air valve and blow the hole out raise hammer repeat drilling procedures until finished Put swing locking pin back in Remove drill steel fold hammer up turn water and air off remove air/water hoses Raise Jumbo back up refer to bell signal card Re-stack cribbing on Jumbo rig Exit shaft Pull rig out of shaft

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U.S. Department of Labor | Mine Safety and Health Administration (MSHA) | 1100 Wilson Boulevard, 21st Floor | Arlington, VA 22209-3939
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