MSHA - Interactive Training - JTA Spiders

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	DBT RCCM
	Contact: Palmer.Melvin@dol.gov

1. Start of Shift Activities

Be on time

Company policy

Change into work clothes

Obtain safety equipment

Hard toe shoes

Hard hat

Gloves

Get Kevlar gloves

Company safety policy (PPE)

Get rubber gloves

Company safety policy (PPE)

Hearing protection

Company safety policy (PPE)

Safety glasses

Miners belt

Check tags

SR100 SCSR

Worn on belt

Check SCSR

Check indicator

Check for damage

Check heat sensor(if equipped)

Check reflective material

Better visibility of personnel underground

Harness

Hard hat

Clothes

Light

Inspect for conditions that compromise permissibility

Check lens cap lock in place

Cable insulation condition

Check water level in battery

Check function of both bulbs

Tag in

Check for hand tools

Hammer

Spray wrench

Utility knife

Channel locks

Screwdriver

Extra water sprays

Get methane spotter

Liberates over 1 mcf in 24 hours (review properties of methane)

Check battery

Check calibration

Check for physical damage to case

Check previous shift maintenance report

Look for down time

Check for potential problems

Report to section foreman

Get communications radios

Check for proper pull ropes or straps

Get on slope car/elevator

Wear safety glasses

Get on man trip when arriving at bottom

Keep safety glasses on

Keep arms and legs inside mantrip

2. Examine Workplace

Examine roof

Examine ribs

Examine for slipping and tripping hazards

Check power supply breakers from cat head

Check proper breaker setting

Check for insulation mat

Check for proper labeling

Check for cable insulation damage

Scrapes, bruises, improper splices, worn splices

Check for restraining clamp

Check with previous shift when arriving on section for location of equipment

Observe for moving equipment

Everyone needs to communicate and be visible

Check roof and rib conditions

Check bottom conditions

Check for slipping and tripping conditions

Check ventilation controls

Fix any problems with ventilation controls

Check for accumulation of spillage

Check for advancement slack in cable

Check for other cables in the general area

Bolters

Shuttle cars

Check for water supply leaks

Check restraining clamp at the miner

Check the conduit is in restraining clamp around the cable

Check slate bar on miner

Proper use of slate bar

Check sledge hammer

Check cleanliness of miner

Check for methane probe or magnet in holder

Check for damage to probe cradle

3. Conduct dust parameter exam

Energize machine

Knock tram breaker

Knock cutter breaker

Check water pressure on the gauges for sprays

Review methane, ventilation and dust control plan

Turn scrubber on

Check flow with pitot tube

Take 3 readings and average them

Turn sprays on

Turn sprays off

Must maintain at least 50 psi in order to meet regulations (refer to plan)

Observe spray discharge

Check for excessive leaks on miner and water hose

Check cut ventilation

Report completion of exam to foreman

Foreman is required to record

4. Conduct walk-around (power off)

Place miner at intersection

Complete the mining cycle cut, then move miner to intersection for pre-op checks

Conduct workplace safety exam

De-energize the miner at the machine

Check for leaks (oil or water)

Check cutter drums for foreign objects (line curtain, cable bolts and electrical cable fragments)

Check the cat seals on cutter head

Observe openings in drum area for oil leaks

Check all lights

Check light covers

Check lens

Check packing glands

Check conduit

Check for loose or missing bolts

Check that methane monitor is securely mounted and cap is clean

Check for all guards, rub rails, and panel covers in place

Ensure all pins and rub rails are in place

Reference to the diagram provided by manufacturer

Visually check water pressure gage

Minimum 50 psi head spray

Check and set bits

Cat head has to be locked and tagged out before bits can be set

Check conveyor chain

Damage, slack, missing flights, flex board bolts, loose or missing shims, broken take-up springs

5. Conduct walk-around (power on)

Check methane monitor

Ensure correct calibration to handheld detector

Depress self-test button

Observe for flash at 1% and shutdown at 1.5 %

Check function of on-board E-stops

Check remote circuit breaker reset

Check each shift

Check emergency stop function on remote box

Must kick breaker on power center

Check cats.. for slack and spray operation

Also look at pins and cracked pads

Visually check head sprays

Check for pressure, function, and for missing sprays Minimum working sprays, refer to approved ventilation plan

Check operation of scrubber system

Check filter cleanliness

Ensure ductwork is clean

Ensure sump is clean

Clean by back flush

Check that plug is in sump bottom and in good condition

Ensure demister is clean

Clean by back flush

Check scrubber system sprays

Check scrubber door seal

Ensure minimum quantity of air in system

Refer to approved ventilation plan

Try all remote box functions for proper operation

Be sure that all personnel are clear of the RED ZONE

Give a LOUD verbal warning before starting pump motors

Operate tram enable

Operate panic switch

Activate fire suppression

Operate all other control functions

6. Machine Startup

Make methane test

Review the properties of methane

Check ventilation

Conduct workplace exam

At each cut

Attach slack ropes

Depends on mining cycle

Start the machine

Clear RED ZONE

Signal start

Start pump motor

Hold shift button and hold pump start button simultaneously. Forced potato start functions may vary, refer to remote type

Tram inby

Activate tram enable

Twice for high tram speed

If cats are split, tram speed is automatically reduced to low speed

Position yourself clear of RED ZONE

Refer to RED ZONE diagram

Activate forward tram switch

CAUTION: When moving from the rear of the machine to the front of the machine to tram, operator may become disoriented with control functions

7. Cutting Coal

Do not cut any face until

Bolted, cleaned up and rock dusted

Within 4 feet of the face

Warning device installed second to last row of bolts

Setup on curtain side

Curtain side with blowing ventilation on the right side and exhausting is on the left side

Check center lines

Explain reference points on machine

Check air at the start and periodically through the cut

Use velometer to measure air movement

Start the ripper head

CAUTION: Give a LOUD verbal warning before starting ripper head. Make sure cutter heads are off the bottom, slightly away from face and below the roof.

Hold shift and pull cutter toggle down

Release toggle after start

Water turns on automatically, if head sprays do not turn on, shut miner down

Engage tram enable switch

Tram forward

Both cats

Both cats will remain in low speed forward as long as you are cutting. Refer to manufacturer's specifications for additional information on shearing speed control

Sump into coal

Bottom first, then cut up

Back the miner up one drum width

This also dresses the bottom

Raise the head, cut into top

Sump down

Repeat cycle until number 1 lift is complete

Advance line curtain

Explain how to roll up curtain

According to plan

Do workplace exam

Check air

Examine for methane

Every 20 minutes maximum

Reposition the miner

If curtain side cut first while staying out of the RED ZONE reposition the miner on the opposite side paying attention to your cut width. Refer to roof control plan

Remove number 2 lift

Repeat cut cycle for lifts 3 and 4

Cleanup

Clean right side

Clean left side

Back miner at least 4 bolt rows

After cleanup is completed

Shut miner down

Adjust line curtain

Hang warning device

Reflectors, ribbons, and/or signs

Make final gas examination

8. Main Topic

9. Loading Shuttle Cars

Precut coal

Place miner boom in center of shuttle car

Not against the top

Not laying in bed of shuttle car

Transmitter hydraulic functions do not require shifting

Start conveyor

Hold shift toggle up

Hold up on conveyor on toggle

Release after conveyor starts

Load shuttle car

Communicate with shuttle car operator

Do not overload the back of the car

Position yourself out of miner RED ZONE

Be visible

Clothing, cap light toward car man

Position yourself away from shuttle car

Think about your body position

10. Place Change

Attach slack rope to the miner

Shut miner down

Shift key down

Any time you attach additional slack rope, follow this procedure

Push up on pump toggle

Restart miner out of the RED ZONE

Yell LOUDLY "starting the miner"

Tram to next cut

Tram enable has to be re-energized if not used within 3 seconds from time it is released

Ensure that all personnel are out of RED ZONE

11. Cable Handling and Slack Ropes

Back miner until you can attach the pull rope to the miner

Usually one length of the miner

Shut off miner

Be aware of RED ZONE

Wear gloves

Attach pull rope to the pan hooks on miner

Position yourself outside of the RED ZONE

Restart the miner

Repeat the cycle until desired location is reached

Pulling forward, ropes attached

Be sure to drop proper ropes off to prevent knots

Shut off miner

Wear rubber gloves

Drop one loop of cable at a time

Be sure to drop proper ropes off to prevent knots

Position yourself outside of RED ZONE

Restart miner

Tram forward

Repeat cycle until you are at the next place

Remember, must have enough slack to take next cut

Get help to hang cable at necessary locations

12. Turn Crosscut to the Right

Conduct workplace exam

Ensure crosscut is marked off

Mark off the outby rib line

Install warning devices 2 full rows back from outby rib line

Position yourself out of the RED ZONE

Turn miner on

Yell LOUDLY "starting the miner"

Position right hand side of cutter head on the mark at the outby rib line

Start the cutter head

Yell LOUDLY "starting the cutter head"

Keep repeating short angle cuts until the miner is turned 90 degrees

If permanent roof support has been damaged in any way, move back 2 rows

Advance line curtain

Cleanup

Make methane check

Checks not to exceed 20 minutes

Remove miner to next cut

Repeat place change process

13. Job Duties Between Cuts

Position the miner in the crosscut

Leave cutter head off the bottom at least 2 inches

Shut down miner

Lockout and tagout at cat head power center

Perform scrubber maintenance

Clean ductwork

Pull screen out, tap it, and spray it

Change bits

Use tool

Ask for help to turn head

Remove old bits

Place in bucket, give to scoop man for disposal

Try to get a car man to change bits

Remove personnel from RED ZONE

Re-energize miner

Clean miner

Wear gloves

Break pieces with sledge if possible

Remove large pieces with chain

Do not use existing roof support for an anchor

Hose coal dust off miner

Hose crossover tubes at conveyor

At front of conveyor

Use high pressure water

Be careful not to get under boom

Also spray out conveyor pivot between conveyor swing jack bracket and flex boards

14. End of Shift Activities

Park machine between blocks outby last open cross cut last shift of the week

Conduct final ventilation check on last shift before weekends

Conduct a red button transmitter check on the remote box at the end of every second shift

Check radio control battery backup on the fire suppression system every Tuesday at the end of second shift

Company policy

Communicate with oncoming shift

Get on slope car/elevator

Wear safety glasses

Get on man trip when arriving at bottom

Turn in equipment

Including light

Tag out

Turn in methane spotter

Turn in radio

Title

DBT RCCM

Subject

Company

Author

Don Conrad

Version

410

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