Technical data
Products
Description Tool shank size, mm (in.) Part number
Cobra Combi 22 X 108 (
7
⁄8 x 4
1
⁄4) 8318 0800 08
Machine data
Cobra Combi
Weight, kg (lb) 25 (55.1)
Length, mm (in.) 732 (28.8)
Depth, mm (in.) 281 (11)
Width max, mm (in.) 585 (23)
Engine Type 1 cylinder, two-stroke
Cylinder displacement (cc) 185
Power, kW (hp) 2.0 (2.7)
Engine management system Diaphragm carburettor
Cooling system Fan cooled
Fuel type Petrol (gasoline), Unleaded (non-alcylat), 90–100 octane
Fuel consumption, litres/hour (gallon/hour) 1.3–1.5 (0.34–0.40)
Fuel tank capacity, litres (oz) 1.2 (40.6)
Fuel mixture 2% (1:50)
Oil type Atlas Copco two-stroke oil or Castrol TTS
Impact energy, J 22–25 (at 2,700 bpm)
Full speed, loaded machine with tamping tool on bed of sand,
crankshaft (strokes/min)
2,600–2,900
Speed, unloaded machine, idling (strokes/min) 1,600–1,800
Starter Magnapull
Ignition system Thyristor type, breakerless
Spark plug (recommended) Bosch WR7ACY
Spark plug gap, mm (in.) 1.5 (0.060)
Ambient temperature, C° (F) -15 to +37 (5 to 98.6)
Capacities
Cobra Combi
Max drilling depth, m (ft.) 6 (19.7)
Penetration rate with 29 mm drill bit, mm/min (in./min) 250–350 (9.8-13.8)
Penetration rate with 34 mm drill bit, mm/min (in./min) 200–300 (7.9-11.8)
Penetration rate with 40 mm drill bit, mm/min (in./min) 150–200 (5.9-7.9)
COBRA COMBI Safety and operating instructions
© Atlas Copco Airpower | 9800 0955 01 | 2018-01-01
Original instructions
19
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