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Ignition System
Electronic (breakerless) magneto
ignition
Spark plug (resistor
NGK CMR6H,
type):
BOSCH USR4AC
Electrode gap:
0.02 in (0.5 mm)
Fuel System
All position diaphragm carburetor with
integral fuel pump
Fuel tank capacity:
Cutting Blades
HS 46
Bidirectional, ground on one side
Sharpening angle to
horizontal:
35°
Tooth spacing:
1.18 in (30 mm)
Stroke rate:
3,600/min
Cutting length:
18 in (450 mm)
HS 46 C
Bidirectional, ground on one side
Sharpening angle to
horizontal:
35°
Tooth spacing:
1.18 in (30 mm)
Stroke rate:
3,600/min
Cutting length:
22 in (550 mm)
28
HS 56
Bidirectional, ground on both sides
Sharpening angle to
horizontal:
Tooth spacing:
Stroke rate:
Cutting length:
Weight
complete with cutting attachment, dry
HS 46
9.5 oz
(0.28 l)
18 in (450 mm) blade:
HS 46 C
22 in (550 mm) blade:
HS 56
24 in (600 mm) blade:
Maintenance and Repairs
Users of this unit should carry out only
45°
the maintenance operations described
1.34 in (34 mm)
in this manual. STIHL recommends that
other repair work be performed only by
3,600/min
authorized STIHL servicing dealers
24 in (600 mm)
using genuine STIHL replacement parts.
Genuine STIHL parts can be identified
by the STIHL part number, the
{ logo and, in some cases, by
the STIHL parts symbol K. The
symbol may appear alone on small
parts.
8.8 lbs
For repairs of any component of this
(4.0 kg)
unit's air emissions control system,
please refer to the air emissions
systems warranty in this manual.
9.5 lbs
(4.3 kg)
9.9 lbs
(4.5 kg)
HS 46, HS 46 C, HS 56 C