Atlas copco 1838 rock drill maintenance instructions

© Copyright 2010, Atlas Copco Rock Drills AB, Sweden Any unauthorised use or copying of the contents or any part thereof is prohibited. This applies in particular to trademarks, model denominations, part numbers and draw- ings. Atlas Copco Rock Drills AB SE-70191 Örebro, Sweden www.atlascopco.com

Contents 3 Contents 1. General............................................................................................................................. 5 Environment ....................................................................................................................................5 Safety regulations ............................................................................................................................5 Warning boxes............................................................................................................................. 5 The following general safety rules must be observed ................................................................. 6 2. Service interval ............................................................................................................... 9 Before starting a new or newly overhauled rock drill .......................................................................9 After each shift when using a new or newly overhauled rock drill ...................................................9 Before each shift ..............................................................................................................................9 After every 40th percussion hour .....................................................................................................9 Every 400th percussion-hour: ..........................................................................................................9 3. Hose connections ......................................................................................................... 10 Connecting the hoses ....................................................................................................................10 4. Tightening torques ....................................................................................................... 11 Adjusting the side bolts ..................................................................................................................12 Tightening the side bolts............................................................................................................ 12 Retightening the side bolts ........................................................................................................ 12 5. Accumulators ................................................................................................................ 13 Safety labels ..................................................................................................................................13 Location and meaning ............................................................................................................... 13 Charging the accumulators ............................................................................................................13 Checking the accumulators in the event of hose vibration ............................................................13 Damper accumulatorand intake accumulator ........................................................................... 13 Replacing intake and damper accumulator ...................................................................................14 Dismantling ................................................................................................................................ 14 Assembly ................................................................................................................................... 14 Replacing the return accumulator ..................................................................................................15 Dismantling ................................................................................................................................ 15 Assembly ................................................................................................................................... 15 6. Hydraulic motor ............................................................................................................ 16 Replacing the hydraulic motor .......................................................................................................16 Dismantling ................................................................................................................................ 16 Assembly ................................................................................................................................... 16 7. Filling with lubricating oil and bleeding the system.................................................. 17 8. Settings .......................................................................................................................... 18 Setting of ECL lubricating system ..................................................................................................18 Setting the damper pressure .........................................................................................................18 9. Removing the front head.............................................................................................. 19 10. Checking the front head ............................................................................................... 20 11. Mounting the front head ............................................................................................... 21 12. Slinging, weights, storage and hose length ............................................................... 22 Slinging ..........................................................................................................................................22 Rock drill weights ...........................................................................................................................22 Long-term storage .........................................................................................................................22 13. Lubrication .................................................................................................................... 23 Lubrication of gear .........................................................................................................................23 14. Hydraulic and lubricant recommendations ................................................................ 24 Hydraulic fluid ................................................................................................................................24 Pneumatic tool oil ..........................................................................................................................25 Grease ...........................................................................................................................................25

Contents 4

General 1 5 1. General This instruction is intended as a guide when performing maintenance on your rock drill. Environment Safety regulations The Safety chapter contains important information for the prevention of accidents. Warning boxes The manual contains warnings. Warnings are preceded by a heading (Danger, Warning and Caution). Environmental regulations Care for the environment! Leaking hydraulic couplings and grease are hazardous to the environment. Changing oils, hydraulic hoses and various types of filter can be hazardous to the environment. Always collect oil residues, oil spillage, oily waste and residues and spilt grease. Deal with according to local provisions. Use biodegradable hydraulic and lubricating oils where possible. Warning boxes Danger Indicates an imminent risk of serious or fatal injury if the warning is not heeded. Warning Indicates hazards or hazardous procedures which could result in serious or fatal injury if the warning is not heeded. Caution Indicates hazards or hazardous procedures which could result in personal injury or damage to property if the warning is not heeded.

General 1 6 The following general safety rules must be observed Important! Read through the maintenance instructions carefully before starting maintenance work. Follow the instructions given and local regulations. Do not use or intervene in the rock drill unless you have been trained to do so. Never attempt to carry out maintenance while the rock drill is in operation. Ensure that the hydraulic, water and air systems are depressurised and that the electrical system is de-energised prior to removing the rock drill or starting work on the system. Use approved lifting devices when handling the rock drill. Avoid lifting heavy weights yourself. To prevent injury during service and maintenance, all components that could possibly move or drop must be supported safely on blocks or trestles, or secured by means of adequately dimensioned slings. Check that the hoses used are of the right quality, and that all hose connections are in good condition and properly tightened. Hoses that loosen could cause serious injury. Use only Atlas Copco original parts. Any damage or malfunction caused by the use of non-original Atlas Copco parts is not covered by warranty or product liability. Important! Make sure that the rock drill has been main- tained in accordance with the applicable instructions. Before moving the rig and rock drill or starting to drill, make sure that there are no personnel in the immediate vicinity of the drill rig. Checks and adjustments that are necessary when the rock drill is in operation must be carried out by at least two persons. One person must then be present at the operating station and have a good view of the work. Always wear a helmet and earmuffs when dril- ling. Follow local regulations Make sure that the place of work is well venti- lated. Make sure that the safety labels are fitted, clean and fully legible. Particular attention must be paid to all warnings in the manual. Exercise caution when jointing drill rods and with drill bit handling. Watch your fingers! Make sure that clothes do not come too close to rotating machine parts. Negligence could cause serious injury.

General 1 7 Important! A mining machine has many components and implements that are controlled by a hydraulic system, either directly or indirectly. Before working on or inspecting any part of a mining machine, it is important that the individual knows how the components move and are controlled by the hydraulic system components including the respective control circuits. Before working on or inspecting any component, it must be physically constrained from any movement that could cause injury to the worker. The worker must be alert to not placing any part of his/her body where movement of a component could cause injury, unless that component is physically constrained from movement, if the hydraulic system fails, is disconnected, or is signaled to cause movement. It must also be recognized that there are occa- sions where component and or vehicle movement may react to the release of potential energy. Where applicable it must be confirmed that all measures are employed to ensure that any and all sources of potential energy are rele- ased and/ or physically restrained. It is also the responsibility of those involved to insure that all local, state and federal safety regulations are followed, prior to, and during any work or inspection.

General 1 8

Service interval 2 9 2. Service interval Part numbers for the repair kits are in the rock drill’s spare parts catalogue Before starting a new or newly overhauled rock drill Chapter • Connect up the hoses ..........................................................................................................................3 • Charge the accumulators .....................................................................................................................5 • Select a suitable hydraulic oil and lubricant........................................................................................14 • Fill the lubricating system with oil .........................................................................................................7 • Adjust and set the lubricating system ...................................................................................................8 • Set the damper pressure ......................................................................................................................8 After each shift when using a new or newly overhauled rock drill • Tighten all threaded unions ..................................................................................................................4 Before each shift • Check that air and lubricating oil escape in between the shank adapter and front guide and out of the hole in the front head...................................................................................................10 • Check that the drill rig’s damper pressure gauge is showing normal values. Check that the drill rig’s damper pressure gauge is showing normal values. In the event of deviation, adjust the damper pressure..................................................................................................................8 • Check that the shank adapter threads are not damaged ...................................................................10 • Keep an eye on the hydraulic hoses. If they vibrate too much, check the accumulators ........................................................................................................................5 • Check that the machine does not leak. If the flushing medium leaks out of the flushing head, replace seals and O-rings...................................................................................................................10 • When replacing the shank adapter or removing the front head, check the internal components including piston, driver and the visible parts of the rotation chuck bushing ............................................................................................................................................................10 • In the event of oil leakage from the front head: close percussion and only activate the damper in order to determine if the leakage is coming from the percussion or damper . .................................10 After every 40th percussion hour • Grease the gear .................................................................................................................................13 • Tighten all threaded unions ..................................................................................................................4 • Check the safety labels on the accumulators. Replace them if they are damaged or illegible .............5 • Check the accumulators .......................................................................................................................5 Every 400th percussion-hour: • Dismantle the rock drill from the drill rig. Transport the rock drill to an appropriate workshop for servicing................................................................................................12 Important! Always function test the rock drill after service.

Hose connections 3 10 3. Hose connections Connecting the hoses • Clean the rock drill’s hose connections before undoing the protective caps. • Never remove a protective cap until the hose is ready to be connected. • Always store the rock drill with all hose connections plugged. Use suitable protective caps, and make sure that they are clean. 1 2 3 4 5 6 7 8 1250 0240 34 1. Drainage 2. Rotation left 3. Rotation right 4. Percussion return 5. Inlet impact mechanism 6. Flushing air/water 7. Lubricating air 8. Damper, intake Caution! Never attempt maintenance or intervene in the rock drill, connections or hoses while the hydraulic, lubrication or flushing systems are pressurised. Air or oil can spray out at high pressure and high temperature. There is a risk of serious injury to the eyes and skin. Pressure hoses with an internal diameter of 19 mm (3/4”) or greater are of the quality SAE 100 R9R (high-pressure hose with four layers of steel reinforcement). See the rock drill’s spare parts list. For reasons of safety, under no circumstance may these hoses be replaced with hoses of a lower quality. There is a risk of injury if these instructions are not observed!

You're Reading a Preview

Atlas copco 1838 rock drill maintenance instructions

Recently Viewed