XL510 Gradall Low Roof Scaler (Spider No.1)

At least one fire fighting system must be operable at all times. If defects are found on both systems, tag-out drill and immediately report it to supervisor.

Check fire suppression cartridge and ring pin.

Check gauge to ensure properly charge

Ensure pin is secure and in place.

Ensure LED indicator is functioning and green light is on

Underground mine fires cause carbon monoxide gas and oxygen deficient atmosphere and which can be explosive with right mixture of oxygen.

Inspect ROPS structure

Check for cracks

Check for broken weld

Check for loose or missing bolts

Start engine

Enter cab

Maintain 3 points contact during mounting and dismounting

Turn key clock wise

Never leave equipment idling unnecessarily due to DPM regulations

Ensure back up alarm is functional

All operators shall look behind prior to backing up

Ensure horn is functional

Horn button (red) is located on both joy sticks

Check hydraulic safety switch

Safety switch is located on right arm rest of operator seat

Raise arm rest to disengage hydraulic functions

Check lights

Flip toggle switch to on position

Assure all lights are on

Check windshield

Check for cracks

Ensure windshield is properly within the seal

Clean windshield as needed

Check for wiper operation.

Check engine speed control

Dial knob to desired RPM

Check tram alarm

Release parking brakes

Tram forward and reverse to assure alarm is functioning

Listen for alarm

Check yellow strobe light

Strobe must be operational before scaling operation begins. This is a secondary precaution to the posted warning sign.

Check park brakes

Engage park brake by lifting mushroom knob up and attempt to tram forward and reverse

If park brakes do not hold, tag out and notify supervisor.

Check digging brakes

While in low tram, the digging brake will apply automatically when tram pedal is released.

While in high tram, the digging brake will not apply when tram pedal is released. Manual brakes must be used when using high tram.

Report any safety defects and/or unusual conditions to the supervisor and immediately shut down and tag out equipment

Fill out pre-shift inspection form immediately after conducting pre-shift inspection

Responsibility of the operator to complete form.

If form is not completed, the employee will be disciplined.

Pink copy is kept with machine

4. Tramming and Back Scaling operation

Complete Pre Shift Inspection (duty 3) prior to tramming

Throttle engine to desired RPM

Three quarter throttle desired

Release park brake after air pressure reaches approximately 90 PSI

Lower right arm rest to engage hydraulic system

Right arm rest serves as safety switch.

Raise boom 2 feet from ceiling pulling back on left joy stick

Lights aid in inspecting ceiling when tramming

Push or pull on steering wheel to adjust to a comfortable operating position

Depress foot pedal to forward position to release digger brakes

Begin tramming

Press foot pedal and steer scaler with steering wheel

Tram to desired location

Inspect for scales on back and ribs while tramming

While tramming be aware of trailing cables, mobile equipment, power centers, and pedestrian traffic

If scales are observed, follow scaling procedures.

Post room with sign: "scale area do not enter"

Inspect face area for any unusual atmospheric condition

Refer to gas chart

Inspect face area

Lower boom to parking position

Set park brakes

Dismount scaler using caution maintaining 3 point contact

Explain mounting and dismounting hazards. i.e. 3 points of contact and do not jump from ladder

Remain approximately 60 feet from face area (2 shot back)

Inspect face for misfire caps

Check for expose lead lines of caps (green line)

Post area with blasting sign if a misfire is found

Notify supervisor and any other workers in area immediately when a misfire is found.

Back scaler out of face, approximately 150 feet.

Never attempt to remove a misfire cap unless trained

Inspect ceiling for abnormally large scales

Notify supervisor if scaler determines that the scale could cause potential equipment damage and/or endanger operator.

Inspect for uneven floor

Uneven floor will affect the stability of scaler

Use caution when this condition exist

Tram to center of room approximately 60 feet from face in preparation for scaling

5. Scale ceiling (A)

Begin scaling on the left side of ceiling scaling to the right side (clock wise)

Stop machine at desired location

Release tram pedal to set digger brakes

Set park brakes

Set park brakes if condition warrants: incline or decline

Pull up on park brake knob to set brakes

Raise boom to working height

Swing boom clock wise inspecting ceiling around scaler

If scale is observed, remove the scale

Position boom over left front tire by continuing to swing in a clockwise motion

Follow boom radius chart

Push right joy stick right to swing right

Swinging left with boom lowered, creates a blind spot

Curl pick up by pushing the left joy stick to the left

Extend boom to area to be scaled by pushing right joy stick forward

Curl pick down when contact is made with ceiling by pulling left joy stick to the right.

This should create an approximate half inch impression in salt

Maneuver boom by rotating it if necessary to aid in knocking scales down and to see the tip of pick

Push right joystick toggle switch left or right to rotate boom

Instructor needs to explain functions of boom roll

Extend boom while curling pick down and lowering boom (simultaneously)

This will create a scraping action across the ceiling knocking down the scales

Extend boom by pushing right joy stick forward

Curl pick by pulling left joy stick to the right

Lower boom by pushing left joy stick forward

Boom should never be extended beyond half the telescoping range (approximately 23 feet)

This prevents unnecessary stress on the equipment and long term break downs

Retract boom while curling pick up and raising boom (simultaneously)

Retract boom by pulling right joy stick back

Curl pick up by pushing left joy stick to the left

Raise boom by pulling left joy stick back

Swing boom right approximately 6 to 12 inches and repeat scraping process throughout swing radius (to the right tire)

Refer to boom radius chart

Assure boom radius area is completely scaled

Reset to next setup

Release park brakes if applied

Tram forward to desired location (approximately 23 feet)

Set park brakes if needed

Repeat ceiling scaling process

Repeat process until all loose scale has been removed from ceiling in position A

6. Scale face (A)

Retract boom completely

Tram forward toward face (stopping approximately 5 feet from face)

Set park brakes if needed

Extend boom to the point where ceiling and face meets

Extend boom to area to be scaled by pushing right joy stick forward

Curl pick up

Curl pick up by pushing the left joy stick to the left

Scale face by curling pick in a downward motion until pick breaks contact with face

Curl pick down by pulling the left joystick to the right

This should create an approximate half inch impression in salt

Maneuver boom by rotating it if necessary to aid in knocking scales down and to see the tip of the pick

Push right joystick toggle switch left or right to rotate boom

Instructor needs to explain functions of boom roll

Swing boom to the right approximately 6 to 12 inches

See boom radius chart

Assure boom radius area is completely scaled

Repeat the process from ceiling to floor within boom radius

Raise the boom to desired height

Release park brakes if applied

Ensure there no obstacle in travel way of scaler by rotating cab to right

Back away from face

Depress the base (heel) of the tram pedal fully

Tram approximately 80 feet from the scale portion of the face

Reposition to scale ceiling and rib of right side of room (B)

Steer scaler to right side of room on an angle

See scaling diagram

Set park brakes if needed