Mine Safety and Health Administration (MSHA) - Interactive Training - JTA Spiders - Longwall Move

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	Longwall Move - (Tear Down) Spider No.1
	Contact: Palmer.Melvin@dol.gov

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1. 1: Start-of-Shift Activities

Put on safety glasses

Enter the mine by elevator

2. 2: Enter Mine

Conduct travelway examination ...

Meet with foreman

Obtain and examine tools

3. 3: Face Preparation

Start with 9 passes from end o...

Get all shields straight faced...

Adjust overall face height

Place gopher drills on last pa...

Return shearer to headgate cle...

Load bolting supplies onto she...

Obtain 1 1/2" air hose

Travel to tailgate

Place roof bolt supplies on pa...

Clean bottom on each return pa...

Set shearer for tear down at h...

Spot face chain for removal

Move shields so that the tips ...

4. 4: Supporting the Roof for Sh...

Conduct exam

Obtain and examine tools and m...

Hookup air line to main source...

Hookup gopher drill

Installing roof support

5. 5: Remove Tailgate Drive

Conduct Exam

Obtain and examine tools

Lock out/Tag out tail drive mo...

Unplug at 8 bay box

Cut cable at junction box

Remove dog bone face side

Remove dog bone shield side

Cut face chain at tailgate

Remove tail drive

6. 6: Installing Pan Line Pinner...

Conduct Exam

Place pan line bolter on scoop

Tram the scoop to pan line at ...

Lower pinner to bottom

Back out from under bolter unt...

Move scoop forward

Place duck bill on top of trap...

Move scoop forward until duck ...

Lift the bolter up until the t...

Push bolter on pan line with s...

Take scoop binding cable off

Remove scoop

Lock out/Tag out #6 cable from...

7. 7: Installing Pan Line Pinner...

Conduct Exam

Place pan line bolter on scoop

Lock out/Tag Out #6 cable from...

Longwall Move - (Tear Down) Spider No.1

1. 1: Start-of-Shift Activities

Change clothes

Get W-65

Conduct visual examination

Seal and dents

Obtain PPE

Safety glasses

Hearing protection

Steel toe shoes

Respirator

Hard hat

Cap lamp

Gloves

Obtain gas detector

Check charge

Conduct visual examination

Check calibration

Check in/Tag in

Put on safety glasses

Company policy

Enter the mine by elevator

Get on mantrip

Ensure mantrip has been pre-op'd (follow JSA)

Travel to main track

Check signal lights

Follow mine plan

2. 2: Enter Mine

Conduct travelway examination - Self Preformed Safety Assessment

Observe for mobile equipment

Maintain 300' clearance between trips

Check roof conditions

Check for cracks, loose rock, taking on weight, water

Check for loose ribs

Check for overhang

Check for ledges

Check for sloughing

Look for uneven bottom

Rough spots and bumps in the road

Soft spots/low spots

Look for track damage

Bent or broken rails

Switch damage

Loose fish plates

Observe the high voltage cable

Look for damage

Look for downed high voltage cable

Look for guarding and shielding

Look for clearance

Minimum of 12"

Look for roadway debris

Look for crib blocks, rock, banding material, cable, bolts and knocked out timbers

Check for damaged bolts

Correct and/or report any unsafe conditions

Exit mantrip

Maintain a 3-point contact

Observe walkway

Look for slip hazards

Look for trip hazards

Look for fall hazards

Meet with foreman

Discuss longwall move activities

Supplies

Condition of longwall

Condition of scoops

Condition of mule

Maintenance needed on scoops and mule

Attend safety talk

Required company policy

Discuss close calls

Discuss information passed on from previous shift

Discuss any stop work authority

Discuss roof control plan/condition

Required company policy

Discuss longwall move plan and activities for the day

Multiple tasks may be conducted at the same time

Find out what your task assignment is

Find out what other task are being performed and their status

Obtain and examine tools

Conduct Self Preformed Safety Assessment

hammer

channel locks

lady slipper bar

solenoid wrench

flat tip screw driver

chisel

6 or 8 inch adjustable wrench

Other hand tools as needed

3. 3: Face Preparation

Start with 9 passes from end of panel

Get all shields straight faced

Adjust overall face height

Follow longwall move plan

Lower overall height 2 - 3" per pass

Increase height for mule clearance on last 4 passes

Place gopher drills on last pass

Load gopher drills on shearer

Steel bits

Hoses

Steels

Wrench

Oiler

Safety jacks

Unload gopher drills

Place two at mid face on pontoon at the toe of shield

Place one at tailgate at toe of shield

Return shearer to headgate cleaning bottom as you go

Look for loose roof and rib

Scale with shearer where necessary

Load bolting supplies onto shearer

Obtain 1 1/2" air hose

Hang reel of hose from shields

This is done at the same time bolts are being distributed

Attach end of hose to shearer

Travel to tailgate

Place hose behind base jacks as advanced

Pull end of hose to end of tailgate

Place roof bolt supplies on pass back to the head

This may take several passes to get roof bolt materials distributed

Place two roof bolts at toe of each shield

Place two plates at toe of each shield

Place two T-board at toe of each shield

Place one box of resin at every 10 shield intervals

Spot a couple sets of extra bolts supplies at 10 shield intervals

Clean bottom on each return pass and check for loose roof and rib

Normally takes 3 passes to supply the bolts

Set shearer for tear down at headgate

Spot face chain for removal

Stop chain so connection link is on headgate sprocket

Move shields so that the tips are within 5' of rib

Mark a 12' joint of PVC pipe at 5' from one end. Use this 5' mark from the rib/face to the tip of the shield as a guide.

4. 4: Supporting the Roof for Shield Removal

Conduct exam

Obtain and examine tools and materials to attach air line

Flat tip screw driver

6 penny nails

Bander

Bands

6 - 1-1/2" menders

Hacksaw or knife and extra blades

Extra drill oil

Hammer

Staple locks ( 1/2" and 3/8")

Gas detector