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34 – English
TECHNICAL DATA
Recommended original and replacement bar
and chain combinations
Following is a list of recommended cutting equipment for
the Husqvarna chain saw model 261. The combinations of
power head, bar and chain have been investigated in
accordance with the kickback and vibration requirements
of ANSI B 175.1–1991.
The guide bar nose radius is determined by either the
maximum number of teeth in the nose sprocket or the
corresponding maximum nose radius of a solid bar.
The following list is the chain saw manufacturers
recommendations. There may be other combinations
available, which will also achieve kickback protection.
As we are listing the maximum guide bar nose radius, you
may use a guide bar with smaller nose radius than in our
list. For guide bars of the same length, all sprocket-nose
guide bars of the same pitch and having the same number
of sprocket teeth may be considered to have equivalent
kickback energy. A hard nose bar having the same length
and nose radius as a sprocket-bar may be considered to
have equivalent or less kickback energy than the sprocket-
nose bar.
Low kickback saw chain is a chain which has only met the
kickback performance requirements of ANSI B 175.1
safety requirements for gasoline powered chain saws
when tested on the representative sample of chain saws
below 3.8 cu. in. specified in ANSI B 175.1. We recommend
that you as a replacement use the listed chains or "Low
kickback saw chains" which are available at your dealer.
Guide bar Saw chain
Length Pitch Max nose
inch inch radius
13 0,325" 10T Husqvarna H30 or Oregon 95VP
15 0,325" 10T
16 0,325" 10T
18 0,325" 10T
15 0,325" 10T Husqvarna H21/H25/S24 or
16 0,325" 10T Oregon 21LP/21VB/34LG
18 0,325" 10T
20 0,325" 10T
16 3/8" 11T Husqvarna H42/S48 or
18 3/8" 11T Oregon 73L/73VL/73LG
20 3/8" 11T
24 3/8" 11T
Engine
Cylinder volume, cu.in/cm
3
Cylinder bore, inch/mm
Stroke, inch/mm
Idle speed, rpm
Power, kW/ rpm
Ignition system
Manufacture
Type of ignition system
Spark plug
Electrode gap, inch/mm
Fuel and lubrication
system
Manufacturer
Carburetor type
Fuel capacity, US pint/litre
Oil pump capacity at
8 500 rpm, ml/min
Oil capacity, US pint/litre
Type of oil pump
Weight
Without bar and chain, Lbs/kg
Chain/bar
Recommended bar lengths,
inches/cm
Usable cutting length
inches/cm
Chain speed at max.
power, m/sec
Pitch, inches
Thickness of drive link,
inch/mm
Number of teeth on drive
sprocket
0,058"/1,5mm – – H25,H21 S24 21VB 21LP 34LG
0,050"/1,3mm H30 95VP – – 20VB 20LP 33LG
0,058"/1,5mm H42 S48 73L 73VL 73LG
0,050"/1,3mm – – 72L 72VL 72LG
Note: For the chains above you are free to choose between 0,050" and
0,058" gauge drive link for the corresponding bar, see the table below.
261
3,7/61,5
1,89/48
1,34/34
2 700
2,9/ 9 600
Electrolux
ET
Champion RCJ 7Y
0,020/0,5
Walbro
HDA144
1,2/0,6
6,5-13,5
0,6/0,3
Automatic
12,7/5,8
13-20"/33-51
12-19"/30-49
18,5
0,325"/ 3/8"
0,058"/1,5 and 0,050"/1,3
7
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