Atlas Copco Secoroc YT29A Operator Instructions Manual

Atlas Copco Secoroc YT29A Operator Instructions Manual

Pusher leg rock drill

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Secoroc Rock Drilling Tools
Secoroc YT Series Rock Drill
Secoroc YT29A Pusher Leg Rock Drill
Operator's instructions / Spare parts list

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Summary of Contents for Atlas Copco Secoroc YT29A

  • Page 1 Secoroc Rock Drilling Tools Secoroc YT Series Rock Drill Secoroc YT29A Pusher Leg Rock Drill Operator's instructions / Spare parts list...
  • Page 2 Foreword Thank you for selecting the Secoroc YT29A pusher leg rock drill. These instructions were developed to help you get the best performance and productivity from the use of your new rock drill. Please refer to them also for correct maintenance of the machine.
  • Page 3: Table Of Contents

    Table of Contents Scope of application ........... 4 Specification .
  • Page 4: Scope Of Application

    Scope of application Secoroc YT29A is a heavy-duty pusher leg Rock Drill featuring high efficiency and low air consumption. It is primarily designed for drilling in mines, hydropower stations, and road construction projects. It is also a new product suitable for tunneling and other stone works in mining and metallurgical industry.
  • Page 5: Safety Instructions

    Safety instructions To reduce the risk of serious injury or death to yourself or others, carefully read through this instruction booklet before putting the rock drill to use. Always follow the instructions given. Always wear a safety helmet, goggles and ear protectors with CE mark during drilling.
  • Page 6: Operation

    Operation Using the rock drill for the first time When the rock drill arrives from the factory, the inside of the tool is coated with heavy oil to prevent corrosion. After unpacking and installing the tool, pour a small amount of lubrication oil into the air connection and operate the tool on partial throttle to clean the interior.
  • Page 7: Fitting And Removing The Tool

    4. Air/water pressure and hose dimensions Air pressure Ensure that the compressor can deliver the required air pressure of 5 bar at the tool. High pressure (>6.3 bar) causes rough operation and damage. Low pressure (<4 bar) results in a slow drilling speed. Water pressure Make sure that the water pressure is set to around 3 bar.
  • Page 8: Fitting The Working Tool

    Fitting the working tool 1. Push the retainer outwards in the direction of the arrow (see picture below), until the front portion of the retainer is able to accommodate the working tool collar. 2. Insert the drill in the chuck. 3.
  • Page 9: Controls

    Controls Throttle lever The rock drill is equipped with a throttle lever for regulating both the compressed air to the percussion mechanism and the flushing water. A. Extra blowing, water flushing off, impact and rotation off. B. Stop position, air and water off C.
  • Page 10: Trigger

    Trigger When the trigger (A) is pushed in, the feed force stops abruptly and the setting on the feed control lever is overridden. The piston rod in the pusher leg retracts automatically. This function is used for example to adjust the height of the rock drill, when rigging up the pusher leg, or when there is a tendency to jam.
  • Page 11: Drilling

    Drilling Starting the rock drill 1. Open the main valve for compressed air. 2. Open the cock for the flushing water. 3. Adjust the feed control lever to give a suitable feed force for collaring the hole. 4. Align the rock drill so that the working tool touches the desired collaring point. 5.
  • Page 12: When You Have Finished Drilling

    When you have finished drilling Run the rock drill at medium speed when retracting the working tool from the drilled hole. Lay down the rock drill on a stone, wooden plank or similar object, so as to prevent drill cuttings and other foreign matter from entering the chuck. Turn off the water pressure before the air pressure.
  • Page 13: Once A Week (After 40 Hours Of Operation)

    Once a week (after 40 hours of operation) Carry out a basic check of all functions of the drilling equipment. Once a month (after 200 hours of operation) Send the rock drill to a workshop for inspection. The local operating conditions will determine whether or not this is a suitable interval for overhauling the drill.
  • Page 14: Trouble Shooting

    Trouble shooting Problem Cause Solution Decreased Air leakage in hoses, Change packings, and where penetration rate couplings required, change parts in the throttle valve. Shank sleeve Check the shank sleeve for excessive wear. Replace if necessary. Air leakage due to worn Replace the piston and/or cylinder piston/cylinder Air leakage due to worn...
  • Page 15 Problem Cause Solution Uneven running The side bolts are unevenly Check and repair any damage to (continued) or insufficiently tightened. the contact points and tighten the Can cause the various parts bolts with the correct tightening lose their alignment, torque resulting in the seizure of the movable parts.
  • Page 16: Spare Parts List And Exploded Drawing

    Spare parts list and exploded drawing...
  • Page 17 Description Quantity Product no. Product code Spring 96000179 9605-1-3312310169 96000180 9605-1-3312310170 Conical pipe connector 96000186 9605-1-3312310176 Hoop 96000540 9605-1-3312310723 Wing nut 96000185 9605-1-3312310175 Pipe connector 96000187 9605-1-3312310177 Air pipe swivel 96000825 9600-1-3312310022 Air pipe nut 96000823 9600-1-3312310020 O-ring 96000486 9605-1-3312310633 96000174 9605-1-3312310164 Retaining ring...
  • Page 19 Description Quantity Product no. Product code Elastic pin 96000527 9605-1-3312310708 Spring cover 96000169 9605-1-3312310159 Steel retaining ring 96000183 9605-1-3312310173 Spring 96000170 9605-1-3312310160 Rotation nut 96000146 9603-1-3312310135 96000184 9605-1-3312310174 Water valve body 96000171 9605-1-3312310161 Water valve 96000173 9605-1-3312310163 O-ring 96000489 9605-1-3312310642 Seal 96000181 9605-1-3312310171...
  • Page 20 Atlas Copco Secoroc AB Box 521, SE-737 25 Fagersta, Sweden Phone: +46 223 461 00 E-mail: secoroc@se.atlascopco.com www.atlascopco.com...

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