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3.
Specifications
3.1
Engine
3.2
Fuel System
3.3
Ignition System
3.4
Chain Lubrication
MS 440, MS 440 C
Displacement:
Bore:
Stroke:
Engine power to ISO 7293:
Max. permissible engine speed
with bar and chain:
Idle speed:
Clutch:
Clutch engages at:
Crankcase leakage test
at gauge pressure:
under vacuum:
Carburetor leakage test
at gauge pressure:
Operation of tank vent at gauge
pressure:
Fuel:
Air gap between ignition module
and fanwheel:
Spark plug (suppressed):
Electrode gap:
Fully automatic, speed-controlled oil pump with rotary piston
Oil delivery rate:
3
70.7 cm
(4.31 cu.in)
50 mm (1.97 in)
36 mm (1.42 in)
4 kW (5.4 bhp)
at 9,500 rpm
13,500 ± 150 rpm
2,500 1 rpm
Centrifugal clutch with three unlined
clutch shoes
3,500 rpm
p
= 0.5 bar (7.25 psi)
ü
p
= 0.5 bar (7.25 psi)
u
p
= 0.8 bar (11.6 psi)
ü
p
= 0.3 bar (4.35 psi)
ü
as specified in instruction manual
0.15...0.3 mm (0.006...0.12in)
Bosch WSR 6F
NGK BPMR 7A
0.5 mm (0.02 in)
3
8...18 cm
/min
(0.49...1.1 cu.in/min) at 10,000 rpm
5
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Table of Contents
Troubleshooting
