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Summary of Contents for Atlas Copco Secoroc YT Series
- Page 1 Secoroc Rock Drilling Tools Secoroc YT Series Rock Drill Secoroc YT28 Pusher Leg Rock DRILL Operator's instructions / Spare parts list...
- Page 2 Foreword Thank you for selecting the Secoroc YT28 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.
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Page 3: Table Of Contents
Table of Contents Scope of application ........... 4 Specification . -
Page 4: Scope Of Application
Scope of application Secoroc YT28 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 during drilling. Any local regulations that exist must also be observed. -
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.
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Page 16: Spare Parts List And Exploded Drawing
Spare parts list and exploded drawing... - Page 17 Description Quantity Product no. Product code Ratchet 96000694 9604-1-3312312282 Valve chest 96000695 9604-1-3312312283 Valve Cover 96000696 9604-1-3312312284 Rifle nut 96000697 9604-1-3312312285 Piston 96000698 9604-1-3312312286 Cylinder 96000699 9604-1-3312312287 Guiding sleeve 96000700 9604-1-3312312288 Muffler 96000137 9603-1-3312310125 Bushing 96000868 9604-1-3312312290 Valve 96000841 9601-1-3312310041 Locking pin 96000839 9601-1-3312310039...
- Page 19 Description Quantity Product no. Product code Retaining ring 96000115 9602-1-3312310096 Air pipe swivel 96000713 9604-1-3312312303 Open-close handle 96000117 9602-1-3312310098 Exchange Valve 96000161 9603-1-3312310150 Sping 96000157 9603-1-3312310146 Water pipe 96000714 9604-1-3312312304 Retaining ring 96000121 9602-1-3312310106 Location pin 96000177 9605-1-3312310167 Water vav;e body 96000122 9602-1-3312310110 Retaining ring...
- 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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