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Stroke volume cu. in 2.7 (43 cm
3
) 3.2 (52 cm
3
) 3.3 (54 cm
3
) 3.2 (52 cm
3
)
Bore inch 1.57 (40 mm) 1.73 (44 mm) 1.77 (45 mm) 1.73 (44 mm)
Stroke inch 1.34 (34 mm) 1.34 (34 mm) 1.34 (34 mm) 1.34 (34 mm)
Max. power at speed kW / rpm 2.0 / 9,000 2.4 / 9,000 2.2 / 9,000 2.7 / 9,000
Max. torque at speed Nm / rpm 2.4 / 6,000 2.9 / 6,000 3.0 / 6,000 3.1 / 6,000
Idling speed rpm 2,500 2,500 2,500 2,500
Coupling speed rpm 3,600 3,600 3,600 3,600
Sound Pressure Level at the operator’s ear
at full load according to ANSI B 175.1 db(A) 102 102 102 102
Sound Pressure Level at the bystander’s position
(50ft/15 m distance) according to ANSI B 175.1
db(A) 75 75 75 75
Carburetor (for CANADA) Type Walbro WT 465
TILLOTSON HU 116
Walbro WT 465
TILLOTSON HU 116
Carburetor (for USA) Type Walbro WT 465
TILLOTSON HU 116
Walbro WT 465
TILLOTSON HU 116
Ignition system Type electronic electronic electronic electronic
Spark plug Type BOSCH WSR 6F BOSCH WSR 6F BOSCH WSR 6F BOSCH WSR 6F
Electrode gap inch .020 .020 .020 .020
or spark plug Type NGK BPMR 7A NGK BPMR 7A NGK BPMR 7A NGK BPMR 7A
Fuel consumption at max. load kg/h 0.90 1.08 1.30 1.21
Specific consumption at max. load g/kWh 450 450 590 450
Fuel tank capacity oz 18.6 18.6 18.6 18.6
Chain oil tank capacity oz 9.3 9.3 9.3 9.3
Mixture ratio (fuel/two-stroke oil) see chapter "Fuel"
Chain brake Engages manually or in case of kickback.
Weight
(fuel tank empty, without chain and guide bar)
10 lbs 10 lbs 10 lbs 2 oz 10 lbs 2 oz
Technical data
DCS 520 / 520i DCS 540 DCS 5200i
DCS 430 / 431
Guide bar and saw chain combinations meeting kick-
back requirements of ANSI B 175.1-1991 for the use
in the USA
Models DCS 430, DCS 431
GUIDE BAR SAW CHAIN
length pitch part no. part no.
15" (38 cm) .325" 445 038 631 523 085 664
16" (40 cm) .325" 445 040 631 523 085 666
18" (45 cm) .325" 445 045 631 523 085 672
Drive link gauge: .058", Chain sprocket: 8 teeth
Models DCS 520, DCS 520i, DCS 540, DCS 5200i
GUIDE BAR SAW CHAIN
length pitch part no. part no.
15" (38 cm) .325" 445 038 631 523 085 664
16" (40 cm) .325" 445 040 631 523 085 666
18" (45 cm) .325" 445 045 631 523 085 672
Drive link gauge: .058", Chain sprocket: 8 teeth
18" (45 cm) 3/8" 443 045 661 523 102 664
21" (53 cm) 3/8" 443 053 661 523 102 672
Drive link gauge: .050", Chain sprocket: 7 teeth
Guide bar and saw chain combinations meeting kick-
back requirements of CSA Z62.3-96 for the use in
CANADA
Models DCS 430, 431, 520, 520i, 540 and DCS 5200i
GUIDE BAR SAW CHAIN
length pitch part no. part no.
15" (38 cm) .325" 445 038 631 523 085 664
16" (40 cm) .325" 445 040 631 523 085 666
18" (45 cm) .325" 445 045 631 523 085 672
Drive link gauge: .058", Chain sprocket: 8 teeth
15" (38 cm) 3/8" 443 038 651 522 094 656
18" (45 cm) 3/8" 443 045 651 522 094 664
21" (53 cm) 3/8" 443 053 651 522 094 672
Drive link gauge: .058", Chain sprocket: 7 teeth
Approved bar and chain combinations
"Low-kickback saw chain is a chain which has met the kickback performance requirements of ANSI B 175.1-1991
(American National Standard for Power Tools-Gasoline-Powered Chain Saws-Safety Requirements) when tested on the
representative sample of chain saws below 3.8 c.i.d. specifed in ANSI B 175.1-1991". The approved bar and chain
combinations are low kickback chains according to ANSI B 175.1-1991 and also meet the kickback requirements of
CSA Z62.3-96 for chains saws below 80 cm
3
.
WARNING
Do not use other replacement bars and chains unless they have been designated as meeting the ANSI B 175.1-1991
(for USA) and CSA Z62.3-96 (for Canada) kickback performance requirements on that specific powerhead, or has
been designated as "low kickback" saw chain in accordance with the ANSI B 175.1-1991 (for USA) and CSA
Z62.3-96 (for Canada) standard.