Operation

Operation

Operation

Operation

WARNING

Hot hydraulic oil squirting out

The hydraulic system is under high pressure. If hydraulic connections come loose, hydraulic oil will squirt out under high pressure. Hydraulic oil squirting out can lead to serious injury.

  1. Immediately switch off the hydraulic attachment and the carrier if you detect any leaks in the hydraulic circuits.

  2. Depressurise the hydraulic system (see chapter Depressurising the hydraulic system).

  3. Repair any leaks before operating the hydraulic attachment again.

WARNING

Hot parts

The hydraulic cylinder, hoses, pipes and fittings become very hot during operation. Touching them may lead to burns.

  1. Never touch hot parts.

  2. If you have to carry out activities where you have to touch the parts, wait for them to cool down first.

WARNING

Risk of explosion

If the hydraulic attachment is equipped with HATCON explosion may occur when the contained lithium batteries are penetrated by pieces of steel or reinforcing bars.

  1. Avoid impact of reinforcement, flying rocks or even explosives on HATCON.

  2. Check the HATCON before operating.

NOTICE

Environmental damage due to hydraulic oil

Hydraulic oil is environmentally harmful and must not penetrate the ground or enter the water table or water supplies.

  1. Collect any hydraulic oil which escapes.

  2. Dispose of it in accordance with the applicable environmental regulations.

NOTICE

Hydraulic oil too hot

The temperature of the hydraulic oil must not exceed 80 °C (176 °F). Higher temperature will damage the seals of the hydraulic parts.

  1. Monitor the oil temperature.

  2. Shut off the hydraulic attachment and the carrier if you measure an increased temperature in the tank.

  3. Check the hydraulic installation and the pressure relief valve.

Preparations before starting

WARNING

Falling carrier

A carrier falling or tipping over due to the surface not being level may cause serious injury and material damage.

  1. Always observe great care when moving the carrier.

  2. Do not use the hydraulic attachment until the carrier is positioned stably.

WARNING

Fragments flying around

Fragments of material which come loose while operating the hydraulic attachment may be flung away and can cause serious injury if people are hit by them. Small objects falling from a great height can also cause serious damage.

During hydraulic attachment operation the danger zone is considerably greater than during the excavation operation due to fragments of stone and pieces of steel flying around, and for this reason the danger zone must, depending on the type of material to be worked on, be enlarged correspondingly, or secured in a suitable manner through corresponding measures.

  1. Secure the danger zone.

  2. Stop the hydraulic attachment immediately if anyone enters the danger zone.

  3. Close the windscreen and the side windows of the driver's cab.

  1. 1.
    Before starting the hydraulic concrete buster, ensure that

  • the hydraulic concrete buster is complete,

  • the hydraulic concrete buster and adapter plate do not have any cracks,

  • the blade clearance is within tolerance

  • and none of the hydraulic line connections leak.

The preparations required prior to starting the hydraulic concrete buster depend on the ambient temperature:

  • Ambient temperature below 0 °C(see chapter Low ambient temperature).

  • Ambient temperature above 30 °C(see chapter High ambient temperature).

The oil temperature in the hydraulic concrete buster must be between 0 °C and +80 °C during operation.

The full capacity of the hydraulic concrete buster can be achieved when the oil temperature is approx. 60 °C.

  1. 1.
    Make sure that there are no people in the danger zone.
  2. 2.
    Start the carrier as instructed by the carrier manufacturer.
  3. 3.
    Let the carrier warm up until the operating temperature prescribed by the carrier manufacturer has been reached.
  4. 4.
    Put the carrier in its working position.

Switching the hydraulic attachment on and off

After properly attaching the hydraulic attachment to the carrier, the hydraulic attachment can be operated using the carrier's hydraulic system. All functions for normal carrier operation remain intact.

The hydraulic attachment is switched on and off using electrical and hydraulic signals.If you have any questions about electric/hydraulic commands, consult the carrier manufacturer and/or the Epiroc Customer Center / Dealer in your area.

  1. 1.
    Switch the hydraulic attachment on and off, as described in the carrier's operating instructions.
  2. 2.
    When leaving the driver's cab, set the safety switch/lever for the electrical/hydraulic attachment installation to the "OFF" position.

    Carry out the above actions to prevent any unintended start-up of the hydraulic attachment.

Functional test

Always carry out a functional test before putting the hydraulic attachment into use. Check that all hydraulic lines and connections are tight and that the hydraulic attachment works without any problem.

  1. 1.
    Prepare the hydraulic attachment so that you can start using it (see chapter Preparations before to starting).
  2. 2.
    Lift the hydraulic attachment with the carrier boom function so that it hangs vertically.
  3. 3.
    Close and open the cutter jaws.
  4. 4.
    Turn the hydraulic attachment via the connected carrier function »Turn« left and right.
  5. 5.
    Observe the hydraulic lines and whether the hydraulic attachment works properly.
  6. 6.
    Switch the hydraulic attachment off immediately if oil leaks from the hydraulic lines or other malfunctions occur.
  7. 7.
    Depressurise the hydraulic system (see chapter Depressurising the hydraulic system).
  8. 8.
    Only take the hydraulic attachment back into operation once all leaks or malfunctions have been remedied.

Correct operation

Demolishing concrete ceilings or walls

  1. 1.
    Encompass the concrete ceilings and walls as far as possible with the hydraulic concrete buster.

In high reinforced concrete structures

  1. 1.
    First break the concrete with the tip of tooth area.
  2. 2.
    Then cut the reinforcements with the cutter blades.

Working position

  1. 1.
    Change the working position in good time.
  2. 2.
    Start demolition from the narrow sides.

Nipping out concrete elements

  1. 1.
    Nip concrete elements off at both sides.

High ambient temperature

  1. 1.
    Only use hydraulic oils of sufficient viscosity.

    In summer and in tropical climates, the minimum requirement is a hydraulic oil of type HLP 68.

Low ambient temperature

Ambient temperature below -20 °C (-4 °F):

You must heat up the hydraulic attachment and the carrier when working in ambient temperatures of below -20 °C (-4 °F).

Preferably park the carrier and the hydraulic attachment in a heated, sheltered space while not using it.

NOTICE

Hydraulic oil too cold

Operating the hydraulic attachment while hydraulic oil is still cold will damage the seals of the hydraulic parts.

  1. Do not operate the hydraulic attachment until the temperature of the hydraulic oil it at least 0 °C (32 °F).

  1. 1.
    Start the carrier as instructed by the carrier manufacturer.
  2. 2.
    Let the carrier warm up until the operating temperature required by the manufacturer has been reached.
  3. 3.
    Lift the hydraulic attachment using the boom function so that it hangs vertically.
  4. 4.
    Close, open and turn the hydraulic attachment during the carrier warming-up phase.

NOTICE

Damage to hydraulic parts

Hot hydraulic oil causes damage to subcooled hydraulic attachments.

  1. Do not fill the hydraulic system with hot hydraulic oil.

The temperature of the hydraulic oil of the carrier must be at least 0 °C (32 °F).

  1. 1.
    Start the hydraulic attachment, once the temperature has reached 0 °C (32 °F).
  2. 2.
    During operations, leave the carrier engine and pumps running even during breaks.

Prohibited operation

Unsafe base

WARNING

Danger of tipping

The carrier can topple over and cause injuries and damage.

  1. Only work with the hydraulic attachment when the carrier is on a safe base.

Non-load bearing suspended ceilings

WARNING

Danger of collapse

The carrier can collapse and cause injuries and damage.

  1. Only work with the hydraulic attachment when the carrier is on a load-bearing suspended ceiling.

Working position

WARNING

Falling debris

Large pieces of debris falling may cause injury and damage.

  1. Never start demolishing pillars, supports and walls from below or the middle.

Use over the chain

WARNING

Danger of tipping

The carrier can topple over and cause injuries and damage.

  1. Never work with full delivery sideways in the direction of movement.

Cutting high-grade steels

  1. 1.
    Only cut reinforcement with a tensile strength < 500 N/mm2.

    Cutting high-grade steels with a tensile strength > 370 N/mm2, such as railway rails, tram rails and spring steel may cause damage to the hydraulic concrete buster.

    Cutting reinforcement with a tensile strength > 500 N/mm2 may cause damage to the hydraulic concrete buster.

Levering

  1. 1.
    Never use the hydraulic attachment for crowbar-type applications.

    This would seriously damage the hydraulic attachment.

Moving the carrier

  1. 1.
    Never relocate the carrier sideways by placing the hydraulic attachment on the ground to lift the carrier.

    This would seriously damage the hydraulic attachment.

Moving the boom

  1. 1.
    Never move the boom or the carrier during breaking/cutting.

    This would seriously damage the hydraulic attachment.

Turning the hydraulic attachment

  1. 1.
    Never turn the hydraulic attachment during breaking/cutting.

    This would seriously damage the hydraulic attachment.

Extending the bucket cylinder

  1. 1.
    Never extend the bucket cylinder during breaking/cutting.

    This bending action would destroy the hydraulic attachment.

Pulling

  1. 1.
    Never pull at girders, supports or walls with the hydraulic attachment.

    This would damage the hydraulic attachment and the adapter plate. The carrier may lose stability. It can topple over and cause injuries.

Lifting/Transporting

  1. 1.
    Never use the hydraulic attachment to lift or transport loads.

    The hydraulic attachment was not constructed to lift or transport loads. This would damage the hydraulic attachment.

Impacting/chopping

  1. 1.
    Do not use the hydraulic attachment to impact or chop to destroy material.

    This would seriously damage the hydraulic attachment.

Moving objects

  1. 1.
    Never use the hydraulic attachment to move debris.

    This would damage the hydraulic attachment.

Cylinder end positions

  1. 1.
    Reposition the carrier to avoid working with the cylinder in its end positions.

    Avoid operating the hydraulic attachment when the carrier stick and bucket cylinder are in one of their end positions. These end positions have damping facilities; the hydraulic cylinder may be damaged by prolonged use while in its end positions.

Use under water

  1. 1.
    Never use the hydraulic attachment under water.

    This would seriously damage the hydraulic attachment and may damage the whole hydraulic installation.