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

CRUSHER MOVE

1. Mobilization

cedar rapids 124

install "oversize banner" and ( 2) flags on tractor

hook tractor to jeep

check the tires and hubs on jeep

obtain supervisors approval to hook up to cedar rapids

clean glad hands & king pin

hook tractor & jeep up

untape glad hands

hook up air lines and electrical cord

check tires & hubs on crusher

pull unit to safe area after supervisor approval

check all lights and brakes performance

clean unit for loose stones etc.

install line bumpers

install banners and flags

1 oversize banner on rear

2 flags on the front

2 flags in the middle

2 flags in the rear ( in addition to the oversize)

install strobe light on right rear side

have crushing supervisor look unit over one more time

line up "escort" train

proceed to new site

Driver must know actual height, width, and route. Driver should know that 40 mph provides adequate braking distance, and minimizes damage from debris.

do not exceed speed 40 mph

while maintaining proper distance

check overhead clearance at all times

arrive at new site

check with supervisor

park per instructions

de-flag unit

Primary Crusher Unit 110

Get approval from crushing supervisor to hook up primary

Clean king pin and air lines

couple tractor to primary

untape glad hands

Hook up air and electric lines

raise landing gear

unhook power pack

move crusher to safe area to be cleaned (after approval)

check all lights and brakes performance

check tires and hubs

flag crusher

2 on tractor

2 on side of crusher (1 per side)

2 on rear

have supervisor inspect unit one more time

proceed to new site

Max speed 50 mph

maintain proper distance

check overhead clearances

spot primary at new site

de-flag

Stacker Unit 126

clean any stones or rocks off stacker

check hubs for oil

look for loose lug nuts

look for soft tires

Plug in electrical line

flagging

1 flag left front

2 flags middle, one each side

2 flags rear

"oversize" banner

two flags front of tractor and "oversize" banner

pull slow on rough roads (no suspension)

check and maintain proper height and width clearances

pull to new site

check with supervisor on site

Find level area to drop landing gear

block wheels on stacker

drop landing gear

de-flag

unhook electrical line

uncouple tractor and pull away carefully

Tool Trailer Unit 125

pull trailer to safe area of pit

check brakes, hubs, tires and lights

move to new site under standard posted speeds unless conditions dictate otherwise

ask supervisor about ground plate

spot tool trailer per supervisors instructions, unhook lines drop landing gear and uncouple tractor

Scale Conveyor Unit 132 (and 30" (107), 24" (100) transfer conveyors)

check lights

check brakes (132 only)

hook up safety chain

check pintle is locked

drive to site max 45 mph

Water trailer and test trailer

observe speed limits and road conditions

recheck safety chains and hook up

check hubs, tires, fasteners, hitch and lights

Loader

find level area to break deck on lowboy that is clear of overhead obstructions

pull chains and get approval from supervisor to load loader and gin pole

place gin pole on center of lowboy deck

put loader on deck, lower bucket

hook deck back together

chain down loader with a minimum of 5 load rated chains

tape exhaust pipe and remove antenna

close all windows and latch all doors

attach "oversized" banner on rear with two flags in the middle at the widest point (the bucket)

attach "oversized" banner on the front of the tractor with 2 flags

minimum clearance is 14.5'

travel to new site at max of 45 mph

arrive at new site find flat area with no overhead obstructions to split deck

unchain, de-flag, untape, install antennae

unload loader

remove gin pole from deck (crushing crew)

hook deck back together and pick up chains

Developer Unit 106

check brakes, tires, hubs

flag unit

2 flags front of truck

2 flags rear of unit (either side, typ.)

install light bar and check for proper operation

check once more for rocks

travel to new site (45 mph max)

de-flag and see supervisor for drop location

start engine

lower landing gear to suitable position

remove light bar and air lines

disconnect tractor

Developer stacker Unit 103

flag unit

2 flags on front of truck

2 flags on rear of unit

install light bar and test

check tires and hubs

travel to next site, max speed 45 mph

check with supervisor and get directions for location

lower landing gear, install braces

remove light bar and flagging

block tires

disconnect

2. TEAR DOWN

CEDAR RAPIDS 124

empty crusher

de-energize power

lower stacking conveyor

clean off catwalks

take down spray bar

block cone

put stays on screen

remove top two skirt boards

remove tie off cables

this is a new step at this time

use fall protection

10 foot ladder

unhook the power cords

wrap the cords up

clean out from under the crusher

hook up the loader to the power pack

raise the crusher to remove the screw jacks

remove the screw jacks

this step is done while the catwalks are being cleaned

fold up the front legs

remove blocking & steel pads

spot truck under crusher

Primary Crusher Unit 110

De-energize

Unhook power cords

Take Handrails down

Take ramps out with Loader

Clean primary

Put the stays on

Drop the electrical box down

Roll up cords and place on top of electrical panel/box

Secure with strap

Put Panel up on crusher with loader

Hook loader to power pack

Raise Crusher

take out blocks & plywood and put in feeder (use loader)

Ready for truck

Stacker Unit 126

Wind up the cords

chain up counter weight

loosen belt

lift up one side at a time

take drive chain off and hang on frame

pull pin

swing wheel into travel position

re-pin

shovel off pivot plate

slide hopper to travel position

hook to loader and raise up to proper height

clean 5th wheel plate and pin with shovel

put on truck with loader

follow loader operator instructions

install on belt tie downs