18
PS-6400
PS-7300
PS-7900
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 significantly reduced kickback potential are available.
Technical data
Stroke volume
cu. in (cm
3
)
3.9 (64)
4.4 (72.6)
4.8 (78.5)
Bore
inch (mm)
1.85 (47)
1.97 (50)
2.04 (52)
Stroke
inch (mm)
1.45 (37)
1.45 (37)
1.45 (37)
Max. power at speed
1)
hp / rpm
4.7 / 9,000
5.6 / 9,500
6.2 / 9,500
Max. torque at speed
1)
Nm / rpm
4.2 / 6,500
4.8 / 7,000
5.2 / 7,000
Limit speed with guide bar and chain
rpm
13,500
13,500
13,500
Idling speed
rpm
2,500
2,500
2,500
Coupling speed
rpm
3,200
3,200
3,200
Sound Pressure Level at the operator‘s ear
at full load according to ANSI B 175.1
db(A)
101.4
101.4
101.4
Sound Pressure Level at the bystander‘s position
(50 ft/15 m distance) according to ANSI B 175.1
db(A)
78.7
78.7
78.7
Carburetor (diaphragm carburetor)
Type
ZAMA with limiter caps
Ignition system
Type
electronic
Spark plug
Type
NGK BPMR 7A
Electrode gap
inch (mm)
.020 (0.5)
or spark plug
Type
BOSCH WSR-6F
Fuel consumption at max. load per ISO 7293
1)
kg/h
1.72
2.33
2.3
Specific consumption at max. load per ISO 7293
1)
g/kWh
500
510
505
Fuel tank capacity
floz
25.36
Chain oil tank capacity
floz
14.20
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 EGD)
50:1
Chain brake
engages manually or in case of kickback
Sprocket pitch
inch
3/8
Number of teeth
Z
7
Chain type
(see the Extract from the spare-parts list)
099
Pitch / Driving element strength
inch
3/8 / .058
Guide bar, length of a cut
inch
15 / 18 / 20 / 24 / 28
Guide-bar type
(see the Extract from the spare-parts list)
Weight (fuel tank empty, without chain and guide bar)
lbs
13.9
13.9
13.9
1)
For models without decompression valve
