Husqvarna 55 Rancher manual Technical Data

TECHNICAL DATA

	55 Rancher
Engine
Cylinder volume, cu.in/cm3	3,2/53
Cylinder bore, inch/mm	1,80/46
Stroke, inch/mm	1,26/32
Idle speed, rpm	2 500
Power, kW/ rpm	2,4/ 9 000
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
Carburetor type	Zama
Fuel capacity, US pint/litre	C1Q-EL7
Oil pump capacity at	0,6/1,27
8 500 rpm, ml/min	10
Oil capacity, US pint/litre	0,3/0,63
Type of oil pump	Automatic
Weight
Without bar and chain, Lbs/kg	5,2/11,46
Chain/bar
Standard bar length, inches/cm	15"/38
Recommended bar lengths,
inches/cm	13-24"/33-60
Usable cutting length inches/cm	12-23"/30,5-58,5
Chain speed at max. power,
m/sec	17,4
Pitch, inch/mm	0,325"/8,25
Thickness of drive link, inch/mm	3/8" /9,52
	0,050"/1,3
Number of teeth on drive	0,058"/1,5
sprocket	7

Recommended original and replacement bar and chain combinations

Following is a list of recommended cutting equipment for the Husqvarna chain saw model 55 Rancher. The combinations of power head, bar and chain have been investigated in accordance with the kickback and vibration requirements of ANSI B 175.1–2000.

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 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/34SL
18	0,325"	10T
20	0,325"	10T
18	0,325"	12T	Husqvarna H21 or Oregon 21LP
20	0,325"	12T
16	3/8"	11T	Husqvarna H42/S48 or
18	3/8"	11T	Oregon 73VL/73LG/77SL
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	34LG	34SL
0,050"/1,3mm	H30	95VP	–		–		20VB	33LG	33SL
0,058"/1,5mm	H42	S48	73VL	73LG		77SL
0,050"/1,3mm	–	–	72VL	72LG		76SL

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