Stihl BR 500 - Safety Precautions and Working Techniques

3BR 500, BR 550, BR 600
3. Specifications
BR 500 BR 550 BR 600
3.1 Engine
Displacement: 64.8 cm
3
(3.95 ci) 64.8 cm
3
(3.95 ci) 64.8 cm
3
(3.95 ci)
Bore: 50 mm (2.55 in) 50 mm (2.55 in) 50 mm (2.55 in)
Stroke: 33 mm (1.3 in) 33 mm (1.3 in) 33 mm (1.3 in)
Operating speed with nozzle: 5500 rpm 6100 rpm 7200 rpm
Idle speed: 2500 rpm 2500 rpm 2500 rpm
Crankcase leakage test
at gauge pressure: 0.5 bar 0.5 bar 0.5 bar
under vacuum: 0.5 bar 0.5 bar 0.5 bar
3.2 Ignition System
Air gap between ignition module and fanwheel: 0.15...0.3 mm
(0.006...0.012 in)
0.15...0.3 mm
(0.006...0.012 in)
0.15...0.3 mm
(0.006...0.012 in)
Spark plug: NGK CMR 6 H NGK CMR 6 H NGK CMR 6 H
Electrode gap: 0.7 mm (0.028 in) 0.7 mm (0.028 in) 0.7 mm (0.028 in)
3.3 Fuel System
Carburetor leakage test at gauge pressure: 0.8 bar 0.8 bar 0.8 bar
Operation of tank vent at gauge pressure: 0.3 bar 0.3 bar 0.3 bar
Fuel: as specified in
instruction manual
as specified in
instruction manual
as specified in
instruction manual
RA_452_00_01_02.book Seite 3 Donnerstag, 16. Februar 2012 11:52 11