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Summary of Contents for Atlas Copco Secoroc 7655
- Page 1 Secoroc Rock Drilling Tools Secoroc 76 Series Rock Drill Secoroc 7655/7655D Pusher Leg Rock Drill Operator's instructions / Spare parts list...
- Page 2 Foreword Thank you for selecting the Secoroc pusher leg rock drill 7655/7655D. 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 the correct maintenance of the rock drill.
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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 Model 7655 is a highly efficient rock drill. It is mainly used in either rock drilling work such as mining and tunneling, or in railway, water conservancy construction projects and stone work. It is suitable for wet drilling on hard and medium hard rock, or for drilling horizontal or inclined blast holes. -
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 in this manual. Always wear a safety helmet, impact resistant eye protection with side protection 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 machine is coated with heavy oil to prevent corrosion. After unpacking and installing the machine, pour a small amount of lubrication oil into the air connection and operate the machine on partial throttle to clean the interior. -
Page 7: Fitting And Removing The Drill Steel
4. Air/water pressure and hose dimensions Air pressure Ensure that the compressor can deliver the required air pressure of 5 bar at the machine. High pressure (>6.3 bar) causes rough operation and damage. Low pressure (<4 bar) results in a slow drilling speed. Water pressure Set the water preassure to around 3 bar. -
Page 8: Fitting The Drill Steel
Before drilling check that the flushing hole in the drill steel is not blocked. Fitting the drill steel 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 drill steel collar. -
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 drill steel touches the desired collaring point. 5. -
Page 12: When You Have Finished Drilling
stops. This can be done during drilling. When the drill hole is clean, turn the throttle lever forwards again to re-start the rock drill. When you have finished drilling Run the rock drill at medium speed when retracting the drill steel from the drilled hole. -
Page 13: Selection Of Spare Parts
Clean out the water separator. Selection of spare parts Use only genuine parts for replacement, to ensure stable performance. Do not use pattern parts, which not only have a short working life but also cause consequential damage to other parts, due to differing measurements and methods of manufacturing. -
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 to 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 7655 7655D Handle 96000819 9600-1-3312310016 Roll pin 96000527 9605-1-3312310708 Trigger 96000820 9600-1-3312310017 Circlip 96000183 9605-1-3312310173 Spring cap 96000169 9605-1-3312310159 Spring 96000170 9605-1-3312310160 O-ring 96000482 9605-1-3312310627 Water valve 96000173 9605-1-3312310163 O-ring 96000489 9605-1-3312310642 Rubber pad 96000175 9605-1-3312310165 Water valve body...
- Page 19 Description Quantity Product no. Product code 7655 7655D Spring fixing ring 96000831 9600-1-3312310028 Change valve 96000827 9600-1-3312310024 Expansion ring 96000830 9600-1-3312310027 Pressure regulating valve 96000828 9600-1-3312310025 O-ring 96000486 9605-1-3312310633 Control valve 96000090 9601-1-3312310048 Control valve 96000824 9600-1-3312310021 96000174 9605-1-3312310164 Check ring 96000182 9605-1-3312310172 Air tube nut...
- 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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