MSHA - Interactive Training - JTA Spiders

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	Continuous Mining Machine Operator
	Contact: Palmer.Melvin@dol.gov

SCSR

Check appearance/damage

Check indicators

Check seal

Knee pads

Safety boots

Hard hat w/reflective material

Check-in Check-out tag

Safety belt w/ID tag

Leg bands

Reflective clothing

Ensure outer clothing has reflective material (coats/jackets)

Cap lamp w/remote hook-up

Ensure cap lamp is functional and permissible

Check fluid level when fully charged

Rain suits

Obtain tools/equipment/supplies

Bit hammer (specially designed hammer)

Methane detector/spotter

Conduct visual exam

Conduct electrical zero

Check battery

11/16" spray wrench

"Do not operate" tag

Spray paint

Cut cycle book

Pen/pencil

Watch

15/16" wrench

Five grease fittings

Channel locks

Tape measure

Attend white board meeting (Cut cycle)

Roof conditions

Equipment placement

Section conditions

Section layout

Ventilation

Unbolted areas

Abnormal conditions

Prior shift report

Report of supplies needed

Mining projections

Attend and participate in weekly safety meeting

Sign off

Check maintenance board

Update as repairs are made

Check in

Enter mine on mantrip

Keep body inside compartment

Keep nascar netting closed

2. Workplace examination

Walk to section

Check for slip/trip hazards

Conduct visual of roof/rib conditions

Check mine bottom (wet/muddy conditions)

Check general housekeeping

Check to see if water is turned on at pump

Check pump breaker

Check cat-head at power center

Check the cat-head/breaker identification

Check ground trip

Conduct methane test (if necessary) before energizing machine

Section exam

Walk and examine cable and water line

Move off roadway

Hang properly

Check for damaged splices

Check slack

Check water line for leaks, kinks, etc.

Examine workplace

Conduct visual exam of roof/rib

Correct or report any roof/rib defects

Check drilled test holes

Check location of last row of undisturbed bolts

Check for pizza pans

Operator's side only

Indicate on rib check was made (circle w/check using spray paint)

Check for methane at face

Notify foreman if methane is detected

Turn miner breaker on

If everything on the section is normal and in good condition, i.e. no gas, ventilation correct

3. Pre-op inspection

Conduct walk-around of continuous miner

Make sure no one is around mchine

Check for remote

Check lights

Check general appearance

Check for slate bar

Check for sledge hammer

Check for grease gun

Check for bits

Check for leaks (water/hydraulic)

Check for spare water sprays

Check water gages on miner

Check magnetic methane spotter holder

Check cable pull ropes/straps

Not to exceed 70' during place change

Check cable strain clamp

Check conveyor dust flap

Check water pressure

Check remote functions

Check emergency stops on miner (2)

Right-side

Left-side

Check fire suppression (weekly check)

Check remote shut-down device

Check circuit breaker trip (CBT) (weekly check)

Start pump motor

Check remote operation - face lighting

Activate water sprays

Clean and change if necessary

Tram miner forward/backward

Have everyone out of Red Zones

Communicate intention to other miners

Check hydraulic functions

Have everyone out of Red Zones

Communicate intention to other miners

Raise and lower head

Swing tail left and right

Raise and lower pan

Raise and lower stabjack

Start ripper head and conveyor chain

Have everyone out of Red Zones

Communicate intention to other miners

Check slack in conveyor chain

Visual check at tail

Look for slack

Check water sprays

Check methane monitor

Look for failure indications

Observe count-down cycle

Check scrubber

Clean filter

Wash ductwork out

Backflush de-mister

4. Service continuous miner

De-energize breaker on the miner

Obtain grease and grease gun

Wear metacarpal gloves

Grease the machine

Start at tail fittings and move forward ending at pan

Five to ten pumps for each grease fitting

Refer to lube diagram

Check hydraulic fluid indicator (prior to de-energizing)

Fill everyday, watch for overflow

Check bits, inserts. lugs, pedestal

Dispose of worn bits properly

Place worn bits on continuous miner for removal

Replace tools onto miner

Conduct methane test

20-minute intervals

Energize continuous miner

Make sure area is clear and signal before starting

5. Dust Parameters Examination

Check water flow

Refer to methane and dust control plan for all dust parameter requirements

Check water psi

Water suppresses dust and also cools machine

Check number sprays operating

Check ventilation at face

Check local curtains

Report findings on dust parameter board

6. End of Shift

Check out

Put light on charge

Put detector on charge

Communicate with on-coming miner operator

7. Emergency/Abnormal Procedures

Methane detection

Erratic readings - notify maintenance

1% Methane

Monitor gives off warning signal

Shut machine down

Notify foreman

Flashing light @ 1.5% Methane

Double check with spotter

Use probe

De-energize at power source

2% Methane

Machine shuts down at @ 2%

De-energize all equipment and remove miners from section

Except for miners needed to ventilate

Observe potential loss of remote signal

Do not go up on side of machine

Make sure controls are in neutral position

Check PTO connection

Check transmitter antenna and connection

Disconnect PTO

Checkantenna connections

Check emergency stops

Check master switch and reset

Retreat out of red zone

Recyle remote start-up

Enter Sub-topic

Check to see if you have the right remote for the miner (color-coded) (old remotes only)

8. Shut down

Move miner to next cut, if possible

Lower all components to bottom

Note any maintenance issue

Relay to foreman

Write down conveyor hours

Put spotter on charge

Disconnect remote and place on machine

Park miner at least 15' from curtains

Make final ventilation check

De-energize miner at power center

Turn off water valve

Turn in cut times to foreman

9. Maintenance

Change bits

Add oil

Heavy oil - blue round cans

Hydraulic oil - square silver cans

Low oil indicator in master station (solid red light)

Check lights

Examine cables

Wash miner at least once per shift

Clean scrubber

Refer to Pre-Op Inspection

Grease machine

Grease fittings a minimum of five pumps or until grease is visible at bypass

Grease can/container disposal

Hazcom Program

Material Safety Data Sheets

10. Turning Crosscut

Cut nitch

Nitch should never exceed 10' in depth (measured from the rib line)

See plan

Refer to cut cycle

Position left side of miner as close to rib as you can get it

Mirror image for left v. right

Turn angle as sharp as possible until machine aligns with center line

Experienced Miner Operator should accompany new operator when turning crosscut initially

Take cut to allowed depth of roof control plan

All cut depths will be determined by roof conditions

Continuously monitor roof and rib conditions

Stop and correct developing hazards

Hole through (cutting through into adjacent entry)

Examine adjacent workplace

Check for roof support

Check for equipment or other personnel

Install danger sign or reflectors

11. Place Change

Follow tram procedures

See tramming

Look for obstacles in your path prior to place change

Pick up cable

See cable handling

Back outby last open crosscut

Tram into last open crosscut

Hang cable, if necessary

Examine new workplace

Roof/rib exam

Quality check

At next to last row of bolts

Tram miner into workplace

Check/change bits

Check sprays

Clean scrubber screens

At least two times per shift

Refer to P2 Handbook and see cut cycle sequence

12. Taking a Cut

Maintain constant visual of roof and rib surroundings at all times

Set up on center lines

Take first cut on curtain side

Turn sprays on

You must comply with approved plans

Drop pan on mine floor

Start up cutter head

Do not attempt to start cutter head when sumped against the coal

Position conveyor for shuttle car

If boom is up, shuttle car should pull under

Sump cutter head in

Sumping preference will vary with seam conditions

Start conveyor

Back up aprox. 1-1/2 feet to get roll/hump out of the bottom

Raise head as tramming forward

Repeat cycle until shuttle car is loaded

Follow cut cycles in ventilation plan

Trim corner on designated entries

Install reflectors/danger tag for unsupported roof

Install five reflectors to define Roof Control Red Zone to prepare for nitch cut

Install prior to cutting the nitch to prevent un-needed exposure

Cut nitch for crosscut in designated entry

Conduct methane exam at 20-minute intervals

Back miner up

Power down

Install magnetic holder

Place holder and spotter on cutter head

Travel outby miner

Tram to face

Obtain reading

Back miner out of cut

Power down

Remove magnetic holder

Advance line curtain as needed

Never advance any closer than 2nd row of undisturbed bolts

Refer to ventilation plan

Trim roof as you cut

Make the most efficient use of your time

Clean up cut as you advance

Hang reflector if necessary

See Tramming

Relay mining conditions to roof bolter operator

After loading last buggy, enter finish time

13. Tramming

Maintain communications with co-workers

Signal intent to other miners before starting up or moving miner

Inform shuttle car operators of last car

Stay out of Red Zone

Position yourself outby the tail

Maintain a distance of at least 5' from the cutter head or tail of the miner while tramming

Refer to roof control plan

Position yourself in a cross entry while miner trams by

Turn pump motor off before walking by the miner

Do not position yourself along side the miner at any time while tramming

Machine operator can position himself in open crosscut to tram machine by the crosscut into the heading

Change your location as the continuous miner moves

Cable Handling

Turn pump motor off before loading/unloading cable

Loop and drop cable

Don't drag around corners

Cable pulls cannot exceed distance of 70'

Move cable off roadway and hang as needed

Must have two persons to hang cable

Make sure you have enough slack to hang cable

Use rubber gloves, if necessary

Wet conditoins

High voltage have additional requirements

Do not fasten slings/pull straps to cutter head

Can attach to pan hook

Tram miner inby/outby

Stay behind tail of machine

Stay in front of cutter heads

Tramming outby

Title

Continuous Mining Machine Operator

Subject

Company

Author

debbie combs

Version

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