Operation

Operation

Operation

Operation

Startup and Shutdown

Turning ON Battery Power

Precondition

  • Daily maintenance is completed.

  1. 1.
    Turn the battery isolation switch a quarter of a turn clockwise until the handle stops.

Turning OFF Battery Power

The battery isolation switch must be turned off once the diesel engine is shut down after completing the work, or before a period of long-term storage.

Precondition

  • The diesel engine is turned off.

  1. 1.
    Wait for 2 minutes after the diesel engine is turned off before turning off the battery isolation switch.
  2. 2.
    Turn the battery isolation switch a quarter of a turn counterclockwise until the handle stops.

Activating Remote Control

WARNING

Accidental Operation

Accidental operation can cause serious injury or damage property.

  1. The operator must have a clear line of sight when working with a remotely operated machine.

  2. Before operating the machine, always check that the controls are correctly adjusted.

  3. Always deactivate the remote control when not in use.

  4. Never stand on the machine during operation.

NOTE

Monitor pressure gauges and display for diesel engine when in operation.

NOTE

Always have the drill rig and the remote under surveillance.

NOTE

If the remote control is turned off once the system has been activated, the diesel engine stops and deactivates the drill rig.

NOTE

If the buttons on the remote control are not used within 10 seconds, the remote control goes into standby." Press touch button to reactivate the remote control.

  1. 1.
    Turn the ignition key (A) to ON position on the diesel engine control panel.
  2. 2.
    Reset the emergency stop cable (D) and emergency stop button (B) with reset button (C). The emergency stop cable (D) is always activated when the drill rig is switched off.
  3. 3.
    Hold touch button pressed for several seconds to activate the circuit breaker on the remote control. The display and all indicator lamps illuminate for a short time. Indicator lamp (1) maintains its constant glow and indicator lamp (2) starts to flash.
  4. 4.
    Turn the mode switch (E) on the remote control to position tramming.
  5. 5.
    Establish radio communication by pressing touch button until the communication light symbol is visible on the remote control.
    Step result

    All signal and indicator lamps comes on for around 3 seconds (lamp test). Lamp indicating radio communication is green.

Start Diesel Engine

NOTE

Monitor pressure gauges and display for diesel engine when in operation.

NOTE

Stop the starting procedure after 5 seconds if the engine does not start.

NOTE

Switch off the engine if the indicator lamps indicate a fault on the remote control or the diesel panel. Check to see which symbols are illuminated and rectify the fault.

  1. 1.
    Check that the compressor is unloaded. Switch (B) to Off position.
  2. 2.
    Check that the ignition switch (C) is in ON position. Wait until diesel engine preheating is finished and indicator lamp (A) has gone off.
  3. 3.
    Start the engine with touch button .

Low Diesel Fluid Level

When the diesel level is low, the warning light on the remote control comes on.

An error message also occurs on the control panel. The error message informs that the diesel fluid level is too low.

Warming up System

When working in a cold climate, it is important to:

  • Use the preheating function

  • Use ISO VG 32 hydraulic oil

The following functions prevent and stop the preheating function:

  • Drilling

  • Rotation

  • Tramming

Stop Diesel Engine

NOTE

Allow the engine to idle a few minutes before turning it off if it is warm.

  1. 1.
    Check that the mode switch (A) on the remote control is in tramming mode position. .
  2. 2.
    Check that the compressor is unloaded. Switch (B) to OFF position.

    NOTE

    The engine speed must be lowered to idling before the compressor is discharged.

  3. 3.
    Stop the diesel engine by pressing touch button .
  4. 4.
    Switch off the remote control by pressing and holding touch button .
  5. 5.
    Deactivate the main power switch by turning the handle counterclockwise until it stops.

Feed Rotation

Feed rotation can be carried out both manually and hydraulically. Hydraulic feed rotation is an option.

Upward and horizontal drilling requires higher feed force to compensate for the weight of the rock drill and rock drill cradle. The drill feed pressure must increase with approximately 30–40 bar during upward drilling.

NOTE

Exercise caution regarding machine stability. Machine stability is affected by boom and boom feed movements. See chapter Technical Data.

The following maintenance is added for drilling upwards:

  • Grease nipples at sprocket wheels require daily filling with lubricant. See maintenance schedules.

  • Slide rails require daily cleaning. See maintenance schedules.

The feed can be rotated ±180°. The work area is (B) with the shaft aligned in accordance with (A). For each step that the feed is rotated the work area is moved 45° in the same direction. The work area is always 94°

Rotate Feed Manually

WARNING

Moving Parts

There is a risk of personal injury.

  1. Position the feeder horizontally during rotation.

  2. Deactivate the remote control during rotation to avoid the risk of accidental operation.

NOTE

Pay attention to how the hoses move during rotation to prevent them from being trapped or damaged in other ways.

  1. 1.
    Position the feed so that it is in horizontal position.
  2. 2.
    Prepare rotation by positioning the feed outside the yoke, or operate feed extension so that the feed is positioned in front of the yoke.
  3. 3.
    Remove the ring pin (A) and remove the shaft (B).
  4. 4.
    Grip the feed and move it to the desired position.
  5. 5.
    Replace the shaft (B) and ring pin (A) to lock the feed.

Rotate Feed Hydraulically

WARNING

Moving Parts

There is a risk of serious injury or death as clothing can get caught in the machine.

  1. Do not stand in the machine hazard zone when rotating the feeder hydraulically.

  1. 1.
    Position the feed so that it is in such a position that the hydraulic feed rotation can rotate freely without damaging the feed.
  2. 2.
    Press and hold touch button and, at the same time, move the left-hand multi-function lever (A) to the left or right for the desired position.

Tramming or Driving

Safety Precautions Before Tramming

WARNING

Tipping Risk

The tipping over of a machine can cause serious injury or death.

  1. Keep the feeder in tramming position and the boom inside the limits of the crawler tracks.

  2. Keep the track oscillation cylinders locked.

  3. Never exceed the maximum allowed inclination angles for the machine.

  4. Never combine inclination angles for downward/upward/lateral tramming.

  5. Note the value of the gradient meter.

  6. Never operate the machine from the down side.

  7. Ensure that unauthorized personnel are outside of the working area.

  8. Always check the ground conditions where the machine is operated.

WARNING

Accidental Operation

Accidental operation can cause serious injury or damage property.

  1. The operator must have a clear line of sight when working with a remotely operated machine.

  2. Before operating the machine, always check that the controls are correctly adjusted.

  3. Always deactivate the remote control when not in use.

  4. Never stand on the machine during operation.

WARNING

High Voltage

High-voltage cables can cause serious injury and damage to property.

  1. Keep away from high-voltage cables.

CAUTION

Increased Risk of Sliding

Worn track shoes reduce the friction with the ground considerably and increase the risk of sliding.

  1. Always follow the maintenance recommendation for wear of track shoes.

NOTICE

Damage to Boom, Feeder, and Frame

Tramming with the feeder in upright position may cause serious damage to the machine's boom, feeder and frame.

  1. Tramming with the feeder in upright position must only take place when you drive the machine short distances between boreholes over flat, level ground, otherwise the feeder must be positioned on the feeder support.

Preparations before Tramming

  1. 1.
    Do a walk-around inspection of the machine.
  2. 2.
    Start the diesel engine.
  3. 3.
    Set the boom and feed to the correct position for tramming.

Fill Fuel Manually

WARNING

Flammable and Toxic Liquid

Fuel is toxic and can cause injury. Fuel is flammable and causes burns, serious personal injury, or death.

  1. Shut off the engine.

  2. Use personal protective gear.

  3. Do not handle flammable fluids near hot surfaces, sparks, or flames.

  4. Clean up fuel spills.

NOTICE

Damage to Diesel Engine or Particle Filter

The use of fuel of a lower quality other than recommended by the diesel engine manufacturer, damages the diesel engine and particle filter.

  1. Always use the recommended fuel.

Avoid filling fuel if there is a risk of contamination, for example, in windy or wet weather, or when there is dust in the air.

Precondition

  • The diesel engine is turned off.

  • The tank and tank cover are clean.

  1. 1.
    Remove the filler cap (A).
  2. 2.
    Fill with fuel.

    Diesel Tank Volume

    67 L (18 gal)

Add Coolant

NOTICE

Mixing Coolant

Mixing coolant can damage the equipment.

  1. Do not mix the coolants.

Use only ready mixed coolant that meets ASTM with DG210.

  1. 1.
    Loosen the radiator cap (A) to the stop position to release the pressure in the cooling system.
  2. 2.
    Remove the radiator cap (A).
  3. 3.
    Fill the coolant until the level is between the upper and the lower mark in the sight glass (B).

Basic Tramming

NOTE

The gradient meter shows the chassis frame inclination and not the actual ground inclination.

Position for Tramming
  1. 1.
    Check that the remote control switch (B) is in the position tramming mode .
  2. 2.
    Position the feed to tramming position with multi-function levers (A) and (E).
  3. 3.
    Raise the hydraulic jacks with switch (G) in position (H) for the rear jacks, and switch (F) in position (K) for the front jacks.
  4. 4.
    Select tramming speed depending on terrain characteristics, touch button . Turn the multi-function knob (D) for fine adjustment of tramming speed. The display shows the current speed as percentage of a maximum speed of 100%.

    NOTE

    Low tramming speed gives the highest traction and the opposite way.

  5. 5.
    Operate the tramming levers (C) to move the drill rig in the desired direction.

    NOTE

    Avoid operating one wheel pair while the other is stationary. The tires are subjected to unnecessary stresses.

Drill Rod Location

It is important that the drill steels are positioned with the sleeves facing forward to load the drill steels safely.

Tramming on Level Ground

Correct and Incorrect Position when Tramming on Level Ground

Maximum Permitted Inclination Angles During Setting-Up for Drilling

Setting-Up for Drilling with Feeder in Vertical Position and Centered Between Wheels

Setting-Up for Drilling with Feeder in Vertical Position and Swung Maximum to Left

Setting-Up for Drilling with Feeder in Vertical Position and Swung Maximum to Right

Setting-Up for Drilling with Feeder Top in Extreme Position Forwards, Feeder Laterally Vertical and Centered Between Wheels

Setting-Up for Drilling with Feeder Top in Extreme Position Rearwards, Feeder Laterally Vertical and Centered Between Wheels

Safety Precautions before Using Winch

WARNING

Risk of Moving Parts

Can cause serious personal injury and damage to property.

  1. Ensure that unauthorized personnel are outside of the working area.

  2. Never use the winch with less than four turns remaining on the winch drum

WARNING

Risk of Wire Rope Failure

Can cause serious personal injury and property damage.

  1. Make sure that the anchor point is firm and secure (pay attention to local regulations).

  2. Make sure that the safety hook is able to slide or disengage from its attachment point.

  3. Do not use a damaged wire rope or hook.

  4. Check that the winch locking mechanism is fully engaged in the drum before use, following the attachment of the wire rope eye on the anchor point.

WARNING

Accidental Operation

Accidental operation can cause serious injury or damage property.

  1. The operator must have a clear line of sight when working with a remotely operated machine.

  2. Before operating the machine, always check that the controls are correctly adjusted.

  3. Always deactivate the remote control when not in use.

  4. Never stand on the machine during operation.

Winch Tramming

The winch can be used as an extra safety feature to provide extra thrust when tramming up or down a slippery slope, or as an extra brake when tramming down an incline.

NOTE

Do not use winch for any other purpose.

NOTE

The winch can only be operated from the remote control.

Action before using the winch:

  • Always inspect wire rope and eye before use.

  • The machine must be switched off during anchoring or adjustment of the wire rope.

  • Always replace the damaged wire rope.

It is of the importance that the wire rope is correctly installed in the winch eye. It must be checked:

  • Before each use

  • When replacing the wire rope

  • When first attaching the wire rope after shortening.

Correct Winch Wire Assembly

Correct Assembly

A

Wire rope

B

Wire rope lock

C

Connector sleeve with wedge plug

D

Hook

  • The wire rope must run in line with the eye on the connector sleeve.

  • The wire rope lock must only lock the end wire rope.

  • The free end must be at least 6–9 times the diameter of the wire rope to make sure that the whole section of the wire rope that is either lashed-in, or annealed and tapered, is outside the connector sleeve.

Tramming up Inclines

WARNING

Tipping Risk

The tipping over of a machine can cause serious injury or death.

  1. Do not allow more than maximum inclination angles for the machine.

  2. Do not combine inclination angles for downward/upward/lateral tramming.

  3. Do not operate the drill rig from the down side.

  4. Keep the winch wire rope tension continuously.

  1. 1.
    Activate the remote control .
  2. 2.
    Check that the mode switch (C) is in the position tramming mode .
  3. 3.
    Disengage the winch drum with the disengagement mechanism (B) to enable the cable to be pulled out.
  4. 4.
    Pull out the wire and fasten the eye to the anchor point.
  5. 5.
    Lock the winch drum with the disengagement mechanism (A).
  6. 6.
    Set the winch potentiometer to the desired pressure, touch button . Turn the multifunction knob (D) to change the winch pressure. The display shows the current pressure as % of a maximum pressure of 100%. Push the multifunction knob (D) at the same time as turning it to change tramming speed.
  7. 7.
    Activate the winch circuit. Touch button .
  8. 8.
    Activate wind-in manually to make sure that the lock mechanism is fully engaged in the drum before loading the winch. Switch (E).

    NOTE

    Make sure that the winch locking mechanism is fully engaged (B) before start tramming.

  9. 9.
    Reverse up the incline using the tramming levers.

    NOTE

    Make sure that the wire is kept taut constantly.

Tramming down Inclines

  1. 1.
    Fasten the eyelet to the anchor point.
  2. 2.
    Set the winch thrust using the multifunction knob . Turn it clockwise to reach maximum pressure 100%.
  3. 3.
    Reduce the winch cable pressure gradually until the drill rig can be driven smoothly down the incline with a suitable counterbalance from the winch. Make sure that the cable remains taut constantly.

    NOTE

    The winch works (inwards) simultaneously while the tramming levers are activated.

Check Emergency Stops After Tramming

All emergency stops must be checked for proper function after tramming.

Positioning

Positioning Machine

WARNING

Tipping Risk

The tipping over of a machine can cause serious injury or death.

  1. Never exceed the maximum allowed inclination angles for the machine.

  2. Never combine inclination angles for downward or upward or lateral tramming.

  3. Never operate the drill rig from the down side.

  4. Make sure that unauthorized personnel are not within the working area.

CAUTION

Overloading Feed

Overloading the feed can cause personal injury.

  1. Do not use the cylinder alone for lowering the boom, or the cylinder for feed extension individually to place the feed against the ground.

  2. Do not raise the front section of the track frame from the ground.

  1. 1.
    Set the mode switch (A) in tramming and positioning mode .
  2. 2.
    Set up the rig horizontally using the jacks. Switch (D) in position (G) and switch (C) in position (E).
  3. 3.
    Set the remote control in drilling mode .
  4. 4.
    Position the feed and boom to the desired position. Set the feed spike firmly against the ground without lifting the drill rig. Right and left-hand multi-function lever (B).

    NOTE

    Do not lift the machine with the feed.

Setup on Level Ground

  1. 1.
    Align the machine as horizontally as possible using the jacks.
  2. 2.
    Place the feed spike firmly against the ground without lifting the frame off the ground.

    NOTE

    Position the boom and feeder with smooth movements.

Uphill Setup

Position the machine as close to horizontal as possible.

Correct and Incorrect Uphill Setup

Downhill Setup

NOTE

If the inclination is >10º, then the winch must be used.

Position the machine as close to horizontal as possible.

Correct and Incorrect Downhill Setup

Transverse Incline Setup

NOTE

The risk of slipping is greatest when set up on a transverse incline.

NOTE

Always observe ground conditions.

NOTE

Always be careful when setting up on a transverse incline, always use smooth movements during setup.

Correct Position for Setting-up in Transverse Incline

Drilling

Start Manual Drilling

WARNING

Moving Parts

Moving parts can cause serious injury.

  1. Make sure that unauthorized personnel are not within the working area.

  2. Do not approach the area surrounding rod or rod gripper or carousel.

  3. Always use lifting assistance when loading and unloading the carousel.

  4. Do not approach the area surrounding rod or pipe when the drill rod support is closed during loading.

  5. Only load or unload the carousel when two persons are available.

  6. Follow the instructions carefully.

WARNING

Accidental Operation

Accidental operation can cause serious injury or damage property.

  1. The operator must have a clear line of sight when working with a remotely operated machine.

  2. Before operating the machine, always check that the controls are correctly adjusted.

  3. Always deactivate the remote control when not in use.

  4. Never stand on the machine during operation.

  1. 1.
    Set the mode switch (A) in drilling position .
  2. 2.
    Load the compressor. Switch (U) to the compressor loaded position on the diesel engine control panel.
  3. 3.
    Check that the dust collector and flushing air are activated. When the dust collector is active, the symbol (V) for the dust collector is shown in the display on the remote control.
  4. 4.
    Close the drill rod support. Switch (C) to close position.
  5. 5.
    Move the right-hand multi-function lever (B) to position (L) to lower the rock drill until the drill bit is pressing lightly against the ground.
  6. 6.
    Move the right-hand multi-function lever (B) to left (sector S) one second for self-holding to start the rotation and flushing air.
  7. 7.
    Check that flushing air is activated. The symbol for flushing air is then shown in the display on the remote control (W). If no symbol is visible in the display, press button (D).
  8. 8.
    Move the right-hand multi-function lever (B) forwards through sectors (E) and (Q) to start the drill feed.
  9. 9.
    Activate low percussion by turning right-hand multi-function lever (B) counterclockwise.

    NOTE

    Use the drilling lever intermittently through sectors (E) and (Q) until solid rock is reached.

    NOTE

    Collaring with feed too high makes the drill bit veer off in the wrong direction and result in a deviating hole and bent drill string.

  10. 10.
    Drilling can be suspended by moving the right-hand multi-function lever through sectors a and d to the end position. The lever can be released back to neutral once the self-holding circuit has started. After a few seconds the percussion switches from automatic to high.
  11. 11.
    Turn the drilling lever (clockwise) to activate high percussion pressure.
  12. 12.
    Turn the right-hand multi-function lever (B) to the right to stop all drilling functions (rotation, feed, percussion, and flushing air).
  13. 13.
    To stop drilling but maintain flushing air:
    1. Turn the right-hand multi-function lever (B) counterclockwise in low percussion.
    2. Turn the right-hand multi-function lever (B) clockwise in high percussion.

Adjust Feed During Drilling

NOTICE

Interrupted Drilling

There is a risk of the equipment being damaged when interrupting the machine.

  1. Always interrupt the machine when in drilling mode or with the emergency stop.

  1. 1.
    Move the left multi-function lever (A) to readjust the feed.

Breaking Loose

WARNING

Moving Parts

Moving parts can cause serious injury.

  1. Make sure that unauthorized personnel are not within the working area.

  2. Do not approach the area surrounding rod or rod gripper or carousel.

  3. Always use lifting assistance when loading and unloading the carousel.

  4. Do not approach the area surrounding rod or pipe when the drill rod support is closed during loading.

  5. Only load or unload the carousel when two persons are available.

  6. Follow the instructions carefully.

WARNING

Accidental Operation

Accidental operation can cause serious injury or damage property.

  1. The operator must have a clear line of sight when working with a remotely operated machine.

  2. Before operating the machine, always check that the controls are correctly adjusted.

  3. Always deactivate the remote control when not in use.

  4. Never stand on the machine during operation.

  1. 1.
    Stop drilling by turning the right-hand multi-function lever (A) clockwise or anticlockwise, or move the right-hand multi-function lever to the right, sector (B), for total shut off.
  2. 2.
    Turn the right-hand multi-function lever clockwise to activate high percussion. Release the lever when the joint is loose.

    NOTE

    Release and rattling pressure is used during break loose. The break loose pressure is retrieved from the operator panel.

Add Extension Rods

WARNING

Moving Parts

Moving parts can cause serious injury.

  1. Make sure that unauthorized personnel are not within the working area.

  2. Do not approach the area surrounding rod or rod gripper or carousel.

  3. Always use lifting assistance when loading and unloading the carousel.

  4. Do not approach the area surrounding rod or pipe when the drill rod support is closed during loading.

  5. Only load or unload the carousel when two persons are available.

  6. Follow the instructions carefully.

WARNING

Accidental Operation

Accidental operation can cause serious injury or damage property.

  1. The operator must have a clear line of sight when working with a remotely operated machine.

  2. Before operating the machine, always check that the controls are correctly adjusted.

  3. Always deactivate the remote control when not in use.

  4. Never stand on the machine during operation.

  1. 1.
    Lock the coupling sleeve, close the drill rod support.
  2. 2.
    Disconnect the rock drill by setting the right-hand multi-function lever (A) to the unthreading position (J).
  3. 3.
    Set the lever for drill feed in neutral position.
  4. 4.
    Move the rock drill up by pulling the right-hand multi-function lever (A) backward (D).
  5. 5.
    Open the guard and position the drill rods in drill center.
  6. 6.
    Move the rock drill tool shank down towards the drill rods.

    NOTE

    When the guard is open, only reduced feed can be obtained.

  7. 7.
    Close the guard for moving parts and press the reset button on the remote control or on the diesel engine control panel (Q).
  8. 8.
    Thread together the rock drill tool shank with the drill rods.

Threading

WARNING

Moving Parts

Moving parts can cause serious injury.

  1. Make sure that unauthorized personnel are not within the working area.

  2. Do not approach the area surrounding rod or rod gripper or carousel.

  3. Always use lifting assistance when loading and unloading the carousel.

  4. Do not approach the area surrounding rod or pipe when the drill rod support is closed during loading.

  5. Only load or unload the carousel when two persons are available.

  6. Follow the instructions carefully.

WARNING

Accidental Operation

Accidental operation can cause serious injury or damage property.

  1. The operator must have a clear line of sight when working with a remotely operated machine.

  2. Before operating the machine, always check that the controls are correctly adjusted.

  3. Always deactivate the remote control when not in use.

  4. Never stand on the machine during operation.

  1. 1.
    Check that the shank joints are broken loose.
  2. 2.
    Move the switch (B) to open position (C) to open the drill rod support.
  3. 3.
    Move the right-hand multi-function lever (A) to sector (H) to pull the drill string up until the sleeve reaches the drill rod support.
  4. 4.
    Move the switch (B) to close position (E) to close the drill rod support.
  5. 5.
    Activate unthreading by moving the right-hand multi-function lever (A) to sector (M).
  6. 6.
    Unthread the shank adapter from the drill rod.

Unthreading and Extracting

WARNING

Moving Parts

Moving parts can cause serious injury.

  1. Make sure that unauthorized personnel are not within the working area.

  2. Do not approach the area surrounding rod or rod gripper or carousel.

  3. Always use lifting assistance when loading and unloading the carousel.

  4. Do not approach the area surrounding rod or pipe when the drill rod support is closed during loading.

  5. Only load or unload the carousel when two persons are available.

  6. Follow the instructions carefully.

WARNING

Accidental Operation

Accidental operation can cause serious injury or damage property.

  1. The operator must have a clear line of sight when working with a remotely operated machine.

  2. Before operating the machine, always check that the controls are correctly adjusted.

  3. Always deactivate the remote control when not in use.

  4. Never stand on the machine during operation.

  1. 1.
    Check that the shank joints are broken loose.
  2. 2.
    Open the drill rod support. Switch (B) to open position (C).
  3. 3.
    Pull up the drill string up until the sleeve reaches the drill rod support. Right-hand multi-function lever (A), sector (H).
  4. 4.
    Close the drill rod support. Switch (B) to close position (E).
  5. 5.
    Activate unthreading by moving the right-hand multi-function lever (A) to sector (N).
  6. 6.
    Unthread the shank adapter from the drill rod.

Checks during Drilling

Check point

Inspection

Instructions

Rock drill hydraulic hoses

Abnormal vibrations in the hydraulic hoses

Check the accumulator. For further details see the maintenance instructions for the rock drill.

Rock drill

Visual check

Abnormal leakage from the rock drill

Check that oil seeps out between the front section and the shank adapter. Check that no abnormal leakage has occurred.

Check that lubricating oil flows out slowly from the pipes during jointing.

The lubricating oil pressure should be between 2 and 10 bar on the ECL pressure gauge.

Dust collector (DCT)

Suction ability and filter cleaning

In the event of dust build-up: Check the filter in the filter holder, the suction hose and the drill-steel support gasket.

If water flushes out of the hole the dust collector must be switched off.

Hydraulic system

Visual check

Monitor all pressure gauges in the Drilling menu. They should not show a sudden abnormal pressure.

Check the damper pressure. If damper pressure is lower than 35 bar or higher than 120 bar, percussion will stop automatically - Stop drilling immediately and ask service personnel to investigate.

Display for engine and directional instruments

Visual check

Check that none of the fault indicator symbols is on. If a fault is indicated in the status bar, stop the unit and rectify the fault.

Drill rig

Visual check

Check for any signs of leaks

-Hydraulic system

-Fuel system

-Cooling system

-Compressor

Return oil filter

Operator's display in cabin

Check for any signs of leaks. If the pressure in the return oil filter exceeds the set value, a symbol will be shown on the operator's display.

Suction hood

Occurrence of crushed rock

Raise the suction hood now and then to check that crushed rock is flushed up properly from the hole.

Replace Drill Bit

DANGER

Rotating Parts

There is a risk of serious injury or death as clothing can get caught in the machine.

  1. Stop the drill rotation before changing drill bits.

WARNING

Accidental Operation

Accidental operation can cause serious injury or damage property.

  1. The operator must have a clear line of sight when working with a remotely operated machine.

  2. Before operating the machine, always check that the controls are correctly adjusted.

  3. Always deactivate the remote control when not in use.

  4. Never stand on the machine during operation.

NOTICE

High Impact Percussion

Risk of damage to drill

  1. Never start percussion with the drill bit in mid-air.

  1. 1.
    Operate the feed until the dowel is approximately 10 cm (4 in.) from the rock.
  2. 2.
    Make sure that the rotation lever is in neutral position.
  3. 3.
    Move the drill bit forward until it is pressed against the rock.
  4. 4.
    Switch on the high percussion pressure for several seconds.
  5. 5.
    Switch off the percussion pressure when the drill bit is loosened. If the percussion pressure is engaged for too long, then the drill rods can disconnect from the shank adapter.
  6. 6.
    Retract the drill bit to an appropriate height for easy access.
  7. 7.
    Deactivate the machine controls. If the operator unit for remote control is in use, place it in a safe location.
  8. 8.
    Loosen the old drill bit by hand and replace with a new one.

In Case of Breakdown or Incident

High Coupling Sleeve Temperature

NOTE

Coupling sleeve temperature must not exceed 120 °C (248 °F).

Depending on the layers of the rock, temperature can vary even within a small area. High coupling sleeve temperature is due to a poor ratio between drill feed pressure, percussion pressure, and rotation pressure.

Excessive coupling sleeve temperature is indicated through:

  • Measuring with a thermometer.

  • Oil dripping from the rock drill vaporizing on the coupling sleeve.

  • The coupling sleeve changes color.

Reduce Coupling Sleeve Temperature

  1. 1.
    Check the condition of the drill bit. An over drilled bit generates less torque in the coupling sleeve.
  2. 2.
    Grind the drill bit.
  3. 3.
    Change to a drill bit with ballistic buttons.
  4. 4.
    Reduce rotation speed as much as possible without causing the drill string to rotate jerkily If the rock is too hard for ballistic bits.
  5. 5.
    Check the damper pressure and set it to the recommended level. Reduce percussion pressure to below the basic setting 5–10 bar (73–145 psi). A reasonable reduction in penetration rate must be accepted.
  6. 6.
    Check and adjust feed pressure so that the shank adapter is in float position.

Difficulties in Loosening the Coupling Sleeve

The best method of loosening the coupling sleeve is to drill the last few centimeters without feed pressure and rotation.

Leave percussion active for a few seconds to break the coupling sleeve.

Make sure that the RPC-F system is set correctly. An RPC-F system that is set too high causes excessive torque in the coupling sleeve.

Avoid Hole Deviation

  1. 1.
    Drill with as low drill feed pressure as possible.
  2. 2.
    Check the condition of the drill bit.
  3. 3.
    Use TAC tubes, drop center bits.
  4. 4.
    Drill the first drill rod with reduced drilling for at least half of the drill rod to minimize hole deviation at the start of the hole.