Stihl SR 450 Product Instruction Manual - Page 42

Specifications

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English Specifications EPA / CEPA The Emission Compliance Period referred to on the Emissions Compliance Label indicates the number of operating hours for which the engine has been shown to meet Federal emission requirements. Category A = 300 hours B = 125 hours C = 50 hours CARB The Emission Compliance Period used on the CARB-Air Index Label indicates the terms: Extended = 300 hours Intermediate = 125 hours Moderate = 50 hours Engine Single cylinder two-stroke engine Displacement: Bore: Stroke: Engine power to ISO 7293: Idle speed: 3.86 cu. in. (63.3 cm)3 1.89 in. (48 mm) 1.38 in. (35 mm) 2.9 kW (3.9 hp) 3,000 rpm Ignition System Electronic magneto ignition (breakerless) Spark plug (resistor NGK BPMR 7 A type): Bosch WSR 6 F Electrode gap: 0.02 in. (0.5 mm) Fuel System All position diaphragm carburetor with integral fuel pump Fuel tank capacity: 57.5 fl oz (1.7 l) Blower Data Air velocity Max. air flow rate without blower tube: Air flow rate with nozzle: 201 mph (90 m/s) 765 cf/min (1300 m3/h) 542 cf/min (920 m3/h) Spraying Attachment Container capacity: 3.7 gal (14 l) Quantity left in container: 1.7 fl oz (50 ml) Size of filler strainer mesh: 0.04 in. (1 mm) Spraying distance, horizontal: 47.6 ft. (14.5 m) Discharge rate (with- out pressure pump, 23.33 - with standard meter- 89.27 fl oz/min ing knob): (0.69 - 2.64 l/min) For other discharge rates with special accessories see chapter on "Metering Unit". Weight Empty: SR 430: SR 450: 26.9 lbs (12.2 kg) 28.2 lbs (12.8 kg) Max. weight capacity of container: SR 450: 30.86 lbs(14 kg) 40 SR 430, SR 450

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SR 430, SR 450
English
40
EPA / CEPA
The Emission Compliance Period
referred to on the Emissions
Compliance Label indicates the number
of operating hours for which the engine
has been shown to meet Federal
emission requirements.
Category
CARB
The Emission Compliance Period used
on the CARB-Air Index Label indicates
the terms:
Engine
Single cylinder two-stroke engine
Ignition System
Electronic magneto ignition
(breakerless)
Fuel System
All position diaphragm carburetor with
integral fuel pump
Blower Data
Spraying Attachment
For other discharge rates with special
accessories see chapter on "Metering
Unit".
Weight
Specifications
A = 300 hours
B = 125 hours
C = 50 hours
Extended = 300 hours
Intermediate = 125 hours
Moderate = 50 hours
Displacement:
3.86 cu. in.
(63.3 cm)
3
Bore:
1.89 in. (48 mm)
Stroke:
1.38 in. (35 mm)
Engine power to
ISO 7293:
2.9 kW (3.9 hp)
Idle speed:
3,000 rpm
Spark plug (resistor
type):
NGK BPMR 7 A
Bosch WSR 6 F
Electrode gap:
0.02 in. (0.5 mm)
Fuel tank capacity:
57.5 fl oz (1.7 l)
Air velocity
201 mph
(90 m/s)
Max. air flow rate
without blower tube:
765 cf/min
(1300 m
3
/h)
Air flow rate with
nozzle:
542 cf/min
(920 m
3
/h)
Container capacity:
3.7 gal (14 l)
Quantity left in
container:
1.7 fl oz (50 ml)
Size of filler strainer
mesh:
0.04 in. (1 mm)
Spraying distance,
horizontal:
47.6 ft. (14.5 m)
Discharge rate (with-
out pressure pump,
with standard meter-
ing knob):
23.33 –
89.27 fl oz/min
(0.69 – 2.64 l/min)
Empty:
SR 430:
26.9 lbs (12.2 kg)
SR 450:
28.2 lbs (12.8 kg)
Max. weight capacity of container:
SR 450:
30.86 lbs(14 kg)