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Cobra Combi & Standard

© 2005 Atlas Copco Construction Tools AB 

|

 No 9800 0636 90 

|

 2005-09-16

Contents

CONTENTS ENGLISH

SAFETY INSTRUCTIONS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Safety symbols used

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5

Machine and tool operating hazards

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5

Fume and exhaust hazard

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6

Explosion and fire hazard

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6

Explosion and fire hazard, continued

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7

Electrical/Concealed object hazards

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7

Projectile hazard

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7

Noise hazard

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8

Silica/Dust hazard

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8

Vibration hazard

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8

Machine modification hazard

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8

Additional safety instructions

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9

Protective equipment

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9

Service and maintenance 

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9

Machine tools

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9

OPERATING INSTRUCTIONS

  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Design and function

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10

Main parts

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10

Preparations before starting

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10

Tool shank  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Fuel  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Two-stroke oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Starting and stopping

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11

Cold start  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Restarting a warm machine  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Number of revs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Ground probing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Stopping the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Drilling (Cobra Combi)

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12

Flushing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Inserting the tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Function selector: Drilling and breaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Drilling deep holes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Regular care

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13

Air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Gas duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Decals  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Maintenance

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14

Spark plug  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Changing the starting cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Fitting a new cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Tool chuck  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Carburettor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Trouble shooting

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15

Scrapping worn-out machines

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15

Technical data

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16

Cobra Combi  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Cobra Standard  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Noice and Vibration Declaration Statement

 . . . . . . . . . . . . . . . . . . . . . . . . . .  16

ENGLISH

Summary of Contents for Combi

Page 1: ...trucoes de operacao Máquinas de perfuração petrolífera e de demolição Manuale di istruzioni sulla sicurezza per l uso dei Perforatori demolitori a motore Veiligheidsinstrukties en beidieningsinstrukties Benzinegedreven boor en sloophamer Οδηγίες ασφάλειας και λειτουργίας Βενζινοκίνητες σφύρες και κρουστικά μηχανήματα Turvallisuusohjeet ja käyttöohje Polttonesteporat ja murskaimet Sikkerhedsinstruk...

Page 2: ...2 Cobra Combi Standard 2005 Atlas Copco Construction Tools AB No 9800 0636 90 2005 09 16 Safety and operating instructions ...

Page 3: ...d 2005 Atlas Copco Construction Tools AB No 9800 0636 90 2005 09 16 Contents CONTENTS English 4 Français 17 Deutsch 30 Español 43 Português 56 Italiano 69 Nederlands 82 Ελληνικά 95 Suomi 108 Dansk 121 Norsk 134 Svenska 147 ...

Page 4: ...chine tools 9 OPERATING INSTRUCTIONS 10 Design and function 10 Main parts 10 Preparations before starting 10 Tool shank 10 Fuel 10 Two stroke oil 10 Starting and stopping 11 Cold start 11 Restarting a warm machine 11 Number of revs 11 Ground probing 12 Stopping the engine 12 Drilling Cobra Combi 12 Flushing 12 Inserting the tool 12 Function selector Drilling and breaking 12 Drilling deep holes 13 ...

Page 5: ... away from the start and stop device until you are about to start work Warning The insertion tool is exposed to heavy strains when the machine is used and after a certain amount of use the tool may break due to fatugue If the tool breaks there may be sudden or strong movements Such sudden or strong movements may cause serious injury Make sure that you always keep a stable position with your feet a...

Page 6: ...inhale exhaust fumes Never operate the machine indoors or in poorly ventilated areas Explosion and fire hazard Danger If the machine comes in contact with explosives an explosion may occur Explosions may cause serious injury or death To reduce risk of explosion Never drill or operate the equipment near any explosives including dynamite or other explosives in the rock Make sure that there are no ex...

Page 7: ...sportation Do not use the machine near flammable materials fumes or dust During breaks in work do not place the machine near flammable materials Do not operate the machine near any materials that create sparks Remove all hot objects and objects that create sparks prior to using machine Do not operate the machine in an explosive environment Protect your skin from contact with fuel Electrical Concea...

Page 8: ...tobacco products in areas where there is dust containing crystalline silica Wash your hands and face before eating drinking or using tobacco products outside of the exposure area Work with your employer to reduce silica exposure at your worksite Warning Some dust or other airborne material created during use of the machine may contain chemicals known to the State of California to cause cancer and ...

Page 9: ... out of reach of children Make sure that the all attached and related equipment is properly maintained Signs and stickers that are important for your safety and the care of the machine are included with every machine New signs and stickers can be ordered using the spare parts list Protective equipment Always use approved personal protective equipment Operators and other persons in the work area mu...

Page 10: ...er O Percussion piston P Gas duct Q Gas duct valve R Function selector Cobra Combi S Venturi T Stop button U Fuel filter Preparations before starting Tool shank Use a shank gauge to check that the tool shank is of the correct size i e H 22x108 mm 7 8 x 4 1 4 The shank must be clean and the tool must be in good condition Fuel Cobra Combi and Standard use a mixture of petrol and two stroke oil 1 par...

Page 11: ...arting handle When the machine starts slowly turn the choke clockwise towards position RUN during a 2 3 minutes warm up period Restarting a warm machine Check that the choke is open i e knob in position RUN Pull the starter handle If the machine stops after a short while or does not start at all follow the procedure for cold starting If the machine does not start it may have been flooded i e too m...

Page 12: ...e fuel tank when the machine is not to be used for a long period of time Drilling Cobra Combi Flushing Before drilling check that the flushing hole in the drill steel is not blocked Inserting the tool Stop the machine Insert the tool into the chuck and use your foot to lock the tool retainer Function selector Drilling and breaking Drilling Turn the function selector downwards This will engage rota...

Page 13: ...t of continuous use check and change the filter at least every shift Unscrew the filter cover 1 2 1 Carefully strike the filter against the palm of your hand Extremely dirty filters must be replaced The filter must never be washed Gas duct The gas duct must be checked regularly for carbon deposits and cleaned if necessary 1 Pull the starting handle until the arrow in the centre of the flywheel whi...

Page 14: ...de gap should be 1 5 mm 0 060 in 1 2 3 4 5 Changing the starting cord Remove the screw cap of the PTO See image under Main parts Remove the three bolts from the protective cover of the starting mechanism Lift off the cover grasping the starter pulley as well Let the cover rotate carefully against the starter pulley to release the spring tension Remove the old starting cord Fitting a new cord Oil t...

Page 15: ...hooting If the engine does not start is difficult to start runs unevenly or has poor output check the points mentioned below See image under Main parts Check that the Stop button See C under Starting and stopping is in the ON position Check the fuel level Check the spark plug s electrode distance Check that the air filter is not blocked Check that the fuel filter See U under Main parts is not bloc...

Page 16: ...it 200 300 mm min Penetration rate with 40 mm drill bit 150 200 mm min Other data Tool shank H 22x108 mm H 22x108 mm Machine weight Fe cyl 29 2 kg Al cyl 25 6 kg 23 4 kg Service weiht machine incl fuel and tools Fe cyl 31 4 kg Al cyl 27 8 kg 25 6 kg Length 732 mm 694 mm Width max 470 mm 470 mm Noice and Vibration Declaration Statement Sound effect according to EN ISO 3744 in accordance with direct...

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