Operation Manual

5MS 241 C
2. Specifications
2.1 Engine
MS 241 C
Displacement: 42.6 cm
3
Bore: 42.5 mm
Stroke: 30.0 mm
Engine power to ISO 7293: 2.2 kW (3.0 HP)
at 10000 rpm
Max. permissible engine speed
(with bar and chain): 14000 rpm
Idle speed: 2800 rpm
Clutch: Centrifugal clutch without
linings
Clutch engages at: 3500 rpm
Crankcase leakage test
at gauge pressure: p
ü
= 0.5 bar
under vacuum p
u
= 0.5 bar
2.2 Fuel system
Carburetor leakage test at
gauge pressure: p
ü
= 0.8 bar
Operation of tank vent at
gauge pressure: p
ü
= 0.5 bar
Fuel: as specified in instruction
manual
2.3 Ignition system
Air gap between control unit
and fanwheel: 0.30 (+ 0.05/- 0.10) mm
Spark plug (suppressed): NGK CMR 6 H
Electrode gap: 0.5 mm
2.4 Chain lubrication
Speed-controlled oil pump with reciprocating piston and
manual oil flow control
Oil flow settings:
min:
max:
4.0 (+/- 2.0) cm
3
/min
at 7000 rpm
8.0 (+/- 3.0) cm
3
/min
at 7000 rpm