28
Specifications
Specifications
* With nylon line cutting head, ** With metal blade
These specifications are subject to change without notice.
SRM-237
L
U
External dimensions:
Length × Width × Height (without cutting at-
tachment)
1771 × 340 × 333 mm
1771 × 646 × 536 mm *
1777 × 646 × 468 mm **
Mass:
Unit without fuel, cutting attachment and harness (ISO11806-1: 2011)
Unit with fuel, specified cutting attachment, guard and harness
Unit without fuel, cutting attachment, guard and harness
5.5 kg
6.3 kg
5.0 kg
5.8 kg *, 5.8 kg **
7.4 kg *, 7.2 kg **
5.4 kg *, 5.6 kg **
Volume:
Fuel tank (full)
440 mL
Fuel: Gasoline
Oil
Mixture ratio
Regular grade petrol. Minimum 89 Octane unleaded
petrol is recommended. Do not use fuel containing me-
thyl alcohol or more than 10% of ethyl alcohol.
Two stroke, air-cooled engine oil. ISO-L-EGD Standard
(ISO 13738), JASO FC,FD grade and ECHO recom-
mended.
50:1 part (
2%
)
Cutting attachment:
Nylon line cutting head (Cutting swath)
Thread
Nylon cord size (diameter)
Nylon cord length
SF400 (430)
Left-handed thread M10×1.25 pitch
2.4 mm
3.5 m
Type (Number of cutting teeth)
Specified blade diameter
Specified blade thickness
Blade centre hole diameter
3-cutter blade (3)
230 mm
3.0 mm
25.4 mm
Gear Case:
Gear ratio and lubrication
Rotational direction of output shaft viewed from above
maximum rotational frequency of the spindle
1.36 reduction and good quality lithium grease
Anticlockwise
8600 min
-1
Engine:
Type
Carburettor
Magneto
Spark plug
Starter
Power transmission
Engine displacement
Maximum shaft brake power (ISO 8893)
Fuel consumption at maximum engine power
Recommended maximum engine speed (With STD attachment in-
stalled)
Recommended engine idling speed
Air cooled two stroke, single cylinder
Diaphragm type
Flywheel magneto - CDI system
NGK BPMR8Y
Recoil starter
Automatic centrifugal clutch
21.2 cm
3
0.7 kW
0.45 L/h
8700 min
-1
*, 11200 min
-1
**
3000 (-100~0) min
-1
2006/42/EC
Vibration
(ISO 22867) a
hv,eq
Left handle
Right handle
Uncertainty K
4.1 m/s
2
2.0 m/s
2
1.2 m/s
2
2.4 m/s
2 *,
3.7 m/s
2 **
2.9 m/s
2
*, 3.6 m/s
2 **
1.2 m/s
2
*, 0.8 m/s
2 **
Sound pressure level
(ISO 22868) LpAeq
Uncertainty K
pA
92.9 dB(A)
1.5 dB(A)
91.2 dB(A) *, 93.0 dB(A) **
1.5 dB(A) *, 0.8 dB(A)**
Sound power level
(ISO 22868) L
WARa
Uncertainty K
WA
104.1 dB(A)
2.1 dB(A)
103.5 dB(A)*,
105.1 dB(A)**
2.1 dB(A)*, 1.6 dB(A)**
