Dolmar PS-421 Manuel d'utilisateur télécharger pdf (Page 18)

Stroke volume cu. in (cm)

2.1 (34,7) 2.6 (42,4)

Bore inch (mm) 1.50 (38) 1.65 (42)

Stroke inch (mm) 1.20 (30,6) 1.20 (30,6)

Max. power at speed hp / rpm 2,3 / 9.500 2,9 / 9.500

Max. torque at speed Nm /rpm 2,1 / 6.500 2,6 / 6.500

Idling speed / max. engine speed with bar and chain rpm 2.800 / 13.500 2.800 / 13.500

Coupling speed rpm 5.100 5.100

Sound pressure level at the operator´s ear

at full load according to ANSI B 175.1 dB(A) 100,8 100,8

Sound pressure level at the bystanders position

(50 ft/15 m distance) according to ANSI B 175.1 dB(A) 77,4 77,4

Carburetor Type diaphragm carburator with limiter caps

Ignition system Type electronic

Spark plug Type NGK CMR7A-5

or spark plug Type --

Electrode gap inch (mm) .020 (0,5)

Fuel consumption at max. load per ISO 7293 kg/h 0,79 0,96

Specic consumption at max. load per ISO 7293 g/kWh 526 480

Fuel tank capacity oz 16,2

Chain oil tank capacity oz 9,5

Mixture ratio (fuel/two-stroke oil)

- when using DOLMAR High Performance oil 50 : 1

- when using other synthetic oils (oil quality must be JASO FC or ISO-L-EGD) 50 : 1

Chain brake engages manually or in case of kickback

Sprocket pitch inch 3/8 3/8

Number of teeth Z 6 6

Chain type see the Extract from the spare-parts list

Pitch / gauge inch / (mm) 3/8 / 0,050 (1,3) 3/8 / 0,050 (1,3)

Guide bar, length of a cut inch 12, 14, 16 12, 14, 16

Guide-bar type see the Extract from the spare-parts list

Weight (fuel tank empty, without chain, guide bar and accessories) lbs 10,8 10,8

Figures derived in equal part from idling, full-load and racing speed.

WARNING:

This chain saw is capable of severe kickback that coult result in serious injury to the user. Do not operate this chain

saw unless you have extraordinary cutting needs and experience and specialized training for dealing with kickback.

Chain saws with signicantly reduced kickback potential are available.

Technical data

PS-351 PS-421

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Dolmar PS-421 Manuel d'utilisateur Page 18