Husqvarna 261 34«*3G5¬, Technical Data, Engine, Ignition system, Fuel and lubrication, Weight

TECHNICAL DATA

	261
Engine
Cylinder volume, cu.in/cm3	3,7/61,5
Cylinder bore, inch/mm	1,89/48
Stroke, inch/mm	1,34/34
Idle speed, rpm	2 700
Power, kW/ rpm	2,9/ 9 600
Ignition system
Manufacture	Electrolux
Type of ignition system	ET
Spark plug	Champion RCJ 7Y
Electrode gap, inch/mm	0,020/0,5
Fuel and lubrication
system
Manufacturer	Walbro
Carburetor type	HDA144
Fuel capacity, US pint/litre	1,2/0,6
Oil pump capacity at
8 500 rpm, ml/min	6,5-13,5
Oil capacity, US pint/litre	0,6/0,3
Type of oil pump	Automatic
Weight
Without bar and chain, Lbs/kg	12,7/5,8
Chain/bar
Recommended bar lengths,
inches/cm	13-20"/33-51
Usable cutting length
inches/cm	12-19"/30-49
Chain speed at max.
power, m/sec	18,5
Pitch, inches	0,325"/ 3/8"
Thickness of drive link,	0,058"/1,5 and 0,050"/1,3
inch/mm
Number of teeth on drive	7
sprocket

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

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.

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

34«*3®G¦5(¬

– English