Shindaiwa DH221, Operator'S Manual, Page: 27 / 116

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Specifications
Specifications
These specifications are subject to change without notice.
DH221
Mass:
Unit, empty tank kg 4.9
Unit, full tank kg 5.3
Volume: Fuel tank mL 460
Cutting device:
Type Dual action, double sided
Cutting length mm 499
Pitch mm 35
Height mm 21
Gear ratio and lubrication: 5.88 reduction and good quality lithium grease
External Dimensions: length × width × height mm 1017 × 270 × 192
Engine:
Type Air cooled Two stroke single cylinder
Engine displacement cm³ 21.2
Maximum shaft brake power, measured in accordance
with ISO 8893 kW 0.58
Engine speed at maximum engine power r/min 7300
Recommended maximum engine speed r/min 10900
Recommended engine idling speed r/min 3300
Carburettor Diaphragm type
Ignition Flywheel magneto - CDI system
Spark plug NGK BPMR8Y
Starter Recoil starter
Clutch Automatic Centrifugal
Fuel: Regular grade petrol. Minimum 89 Octane unleaded
petrol is recommended. Do not use fuel containing
methyl alcohol or more than 10 % of ethyl alcohol.
Oil Two stroke, air-cooled engine oil. ISO-L-EGD Stand-
ard (ISO/CD 13738), JASO FC, FD grade and shin-
daiwa One 50 : 1 oil.
Ratio 50 : 1 (2 %)
Fuel consumption at maximum engine power L/h 0.40
Specific fuel consumption at maximum engine power g/(kW•h) 511
Sound Pressure Level: (ISO 10517) L
pAd
(= L
pAeq
+
K
pA
)
dB(A) 93.3
Sound Power Level: (ISO 10517) L
WAd
(= L
WAeq
+ K
WA
) dB(A) 103.0
Vibration levels: (ISO 10517) a
hv,eq
Front handle m/s² 4.8
Rear handle m/s² 8.6
Uncertainty:K m/s² 5.0