Atlas Copco Secoroc QLX Series Operator Instructions Manual
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Atlas Copco Secoroc QLX Series Operator Instructions Manual

Dth hammers
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Secoroc Rock Drilling Tools
SECOROC QLX DTH HAMMERS
QLX 35/40/50/55/60/60 OG/65/100
Operator's instructions
Spare parts list

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Summary of Contents for Atlas Copco Secoroc QLX Series

  • Page 1 Secoroc Rock Drilling Tools SECOROC QLX DTH HAMMERS QLX 35/40/50/55/60/60 OG/65/100 Operator’s instructions Spare parts list...

  • Page 2: Table Of Contents

    CONTENTS MAINTENANCE AND REPAIR .......12–17 INTRODUCTION ............3 Follow instructions SAFETY ..............4–5 DTH Service Disassembly Assembly INSTALLATION AND OPERATION ......5–6 Disassembly QLX 100 Assembly QLX 100 DTH SETUP CHOKE PLUG ...........7 DTH inspection Bailing Velocity Requirements Rock Drill Oil Hydrocyclone set up –...

  • Page 3: Introduction

    DTH hammer and available Fahrenheit for reference at all times. Feet ft.-lb Foot Pounds WARRANTY is provided as part of Atlas Copco Secoroc Gallons per Minute support program for customers who operate and maintain Inches their equipment as described in this manual. kilogram...

  • Page 4: Safety

    Replace all missing or damaged safety labels. Replacement safety labels can be obtained at no cost from DANGER your local Atlas Copco dealer or representative or by contacting the factory. Indicates immediate hazards which WILL result in serious or fatal injury if the warning is not observed.

  • Page 5: Installation And Operation

    O.S.H.A. standards, and appropriate governing agency, and that As a result, maximum efficiency and power are limited. it is used in an area that is adequately ventilated. The Atlas Copco QLX DTH hammer cycle overcomes this inherent limitation by using a poppet valve to maximize WARNING efficiency.
  • Page 6 Installation and setting up the DTH hammer Traditionally, this excess air has been bypassed through the exhaust passages of the hammer by means of a choke system. Before the DTH hammer is used to drill it should be set up for These systems, while effectively disposing of the excess air and providing extra hole cleaning capability, will reduce drilling proper air consumption and the joints should be tightened.

  • Page 7: Bailing Velocity Requirements

    SETUP CHOKE PLUG Where: • Air consumption is the rate delivery of the compressor or the air consumption of the drill at maximum pressure, whichever is Before the DTH hammer is used to drill it should be set up for less.

  • Page 8: Dth Setup

    Oil also needs to be of sufficiently high quality. It is recommend- It´s recommended that the drill be allowed to blow until a visible ed that Atlas Copco Rock Drill Oil be used. If another type of oil film of oil is developed on the bit blow hole.

  • Page 9: Water Injection

    Foam can also entrain and suspend formation water in instances of high water inflows, reducing backpressure on the drill. Atlas Copco DTH hammers are compatible with all commonly available foaming compounds. Modern drilling foams are non- corrosive, but their effects create an environment suited to rapid corrosion of drill parts.

  • Page 10: Feed Force (Hold Down And Hold Back)

    Determining the optimum rotation speed needs to be carried out When drilling through varying conditions such as hard and soft in the actual application. A good rule-of-thumb is to divide 300 or voided material, every effort should be made to keep the drill by the bit diameter in inches to determine RPM.

  • Page 11: Bit Changing

    1. Use sharp tong jaws. Worn or rolled over tong jaws increase the joint. the jaw pressure and make the wrench more prone to damaging the hammer case. Many Atlas Copco hammer cases are case hardened which means sharp jaws are needed to grip WARNING through the hardened case.

  • Page 12: Maintenance And Repair

    MAINTENANCE AND WARNING REPAIR • If the compression cone remains in the hammer when the backhead is removed it will be held under very high load by the spring action of the cylinder. when released, the compression cone will be forcefully Follow instructions ejected from the casing.

  • Page 13: Assembly

    Assembly 6. Pull the bit bearing from the hammer casing. Depending on the degree of rust or dryness in this area, a bearing puller may be needed for removal. 1. Lubricate inside of casing and cylinder. Lubricate outside of cylinder. Place cylinder inside casing and drive into place. 7.

  • Page 14: Assembly Qlx 100

    Assembly QLX 100 4. The assembly can then be coated with rock drill oil and installed in the backhead end of the hammer. The DTH hammer assembly process is identical to the disassembly process yet in reverse. The following guidelines should be used: •...

  • Page 15: Dth Inspection

    Install the bearing stop ring. • It is suggested that the chuck be replaced when the casing is reversed. 2. Inspect the chuck • Check the overall length of the chuck shoulder against the specifications. A short chuck shoulder can cause cycling problems, difficulty handling water, and rough operation.
  • Page 16 Note for QLX 40: If the valve assembly (item7) is replaced with new o-rings, the valve should be installed in the closed position (valve seated against cylinder). This will insure that the hammer will start without incident. New o-rings may require a break-in period of 100 feet (30 meters).
  • Page 17 DTH HAMMER CLEARANCE WORKSHEET Dimensions Measured As new Actual Measured Discard dimension diameter wear clearance clearance from table from table Piston to Casing 2A-1A Large piston OD 1B-1A Casing ID 2A-2B 4A-3A Piston to cylinder 3B-3A Small piston OD Cylinder ID 4A-4B 5A-6A Piston to guide...
  • Page 18 PROBLEM CAUSE REMEDY 5. Exhaust tube projection 5. Check projection vs. specifications repair tube. penetration/ too long high pressure 6. Valve action impeded 6. Check nose of backhead for corrosion other deposits that can interfere with the smooth cycling of the valve. Remove deposits if present. 7.
  • Page 19 PROBLEM CAUSE REMEDY Component 2. Piston struck end cupping 2a. Usually a sign of underfeeding. Increase feed or breaking. until rotation failures pressure pulses and then back down till smooth. 2b. Cavitation from excess water injection can cause small pits in piston face. These pits turn into cracks.
  • Page 20 Minimum guidelines Minimum requirements for for mounting specifications compressor capacity and pressure Torque: The pressure and production developed by a DTH hammer will be related to the air flow passing through the drill. The pressure and Roughly 500 ft-lb per inch (27 N-m per mm) maximum of bit. performance of a DTH hammer is related to the SCFM delivered Speed: by the compressor.

  • Page 21: Rock Drill Oil

    Atlas Copco Rock Drill Oil • Reduces the risk of scoring and abrasion. TECHNICAL FEATURES • Protects against corrosion and oxidation. Specific density 907 kg/m • Insensitive to ambient temperature variations. • Works equally well throughout the temperature range - 35°C to Boiling point >...

  • Page 22: Technical Specifications

    TECHNICAL SPECIFICATIONS QLX 35 AND QLX 40 Hammers are available with other thread connections DTH hammer model QLX 35 QLX 40 Bit shank style DHD3.5 TD 40 Product code 9703-QX-00-10P-35-000 9704-QX-00-10P-64-000 Product number 89001572 89010117 GENERAL SPECIFICATIONS Imperial Metric Imperial Metric Connection Thread API 2 3/8”...
  • Page 23 AIR CONSUMPTION/BPM *Estimated values 400–500 psi (27,6-34,5 bar) QLX 35 QLX 40 Imperial Metric Imperial Metric 100 psi / 6,9 bar (scfm / L/s) 100 psi (bpm) 1289 1107 150 psi / 10,3 bar (scfm / L/s) 150 psi (bpm) 1509 1252 200 psi / 13,8 bar (scfm / L/s)
  • Page 24 QLX 50/55 AND QLX 60/65 DTH hammer model QLX 50 QLX 55 QLX 60 QLX 65 Bit shank style QL 50 QL 50 QL 60 QL 60 Product code 9705-QX-00-14P-25-000 9705-QX-00-14P-25-HB0 9706-QX-00-14P-26-000 9706-QX-00-14P-25-HB0 Product number 89010092 89010093 52352465 52352473 GENERAL SPECIFICATIONS Imperial / Metric Imperial / Metric Imperial / Metric...
  • Page 25 AIR CONSUMPTION/BPM (AIRSELECT POSITION 2) *Estimated values 400 - 500 psi (27,6-34,5 bar) QLX 50 QLX 55 QLX 60 QLX 65 Imperial Metric Imperial Metric Imperial Metric Imperial Metric 100 psi / 6,9 bar (scfm / L/s) 100 psi (bpm) 1305 1305 1384...
  • Page 26 QLX 100 Imperial Metric Connection API 6-5/8 Reg. pin 6-5/8 Reg. pin Outside Diameter 9.00 in 228,6 mm Length, shoulder to shoulder, less bit 63.8 in 1620,5 Length, bit extended 72.2 in 1833,9 mm Length, bit retracted 70.4 in 1788,2 mm Weight, less bit 1007 lb 456,8 kg...

  • Page 27: Parts List

    9703-QX-00-10P-00-000-A20 for 2 3/8” API Reg Pin Backhead assembly 89001575 9703-QX-00-47P-00-000-A20 for Cubex#21 *O-rings not sold separately. Included in different kits, see table. 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...
  • Page 28 Check valve seal 52344744 9704-QX-00-000-00-000-018 Adapter 2 3/8" API Reg pin- 89009498 310-3089-10-007-01-D00,41 *O-rings not sold separately. Included in different kits, see table. 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...

  • Page 29: Secoroc Qlx 50/55

    Piston / inner cylinder clearence Max. 0,009" / 0,23 mm O-ring* (check valve) – – Exhaust tube protrusion 2,07" / 52,58 mm 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...
  • Page 30 – – 21 Choke plug Solid** 50899137 9706-QL-00-000-00-000-180 21 Choke plug 1/4" ** 50899111 9706-QL-00-000-00-000-181 21 Choke plug 1/8" ** 50899129 9706-QL-00-000-00-000-182 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...

  • Page 31: Secoroc Qlx 60 Og

    21 Choke plug 1/4" ** 50899129 9706-QL-00-000-00-000-181 2.31 in / 58,67 mm Exhaust tube protrusion 21 Choke plug 1/8" ** 50899111 9706-QL-00-000-00-000-182 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...
  • Page 32 Max. worn piston to guide clearance 0.014 22 Choke plug - 3/16”- 4.83mm Orifice 89010471 9710-QX-00-000-00-000-181 Max. worn bit to chuck clearance 0.070 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...
  • Page 33 NOTES...
  • Page 34 NOTES...
  • Page 35 NOTES...
  • Page 36 We make performance stand a test of time. This is what we call - Sustainable Productivity. Atlas Copco Secoroc AB Box 521, 737 25 Fagersta, Sweden Phone: +46 223 461 00 www.atlascopco.com/secoroc...

This manual is also suitable for:

Secoroc qlx 35Secoroc qlx 40Secoroc qlx 50Secoroc qlx 55Secoroc qlx 60Secoroc qlx65 ... Show all

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