Husqvarna 455 Rancher Workshop Service Manual Repair
Husqvarna 455 Rancher Workshop Manual for the Repair and service of the Husqvarna 455 Rancher chainsaw (455). The PDF workshop service manual has accurate, easy to understand information and diagrams to help repair and service, information to help you to troubleshoot, repair and fix the Husqvarna 455 Rancher chainsaw (455). View pages online or download a complete PDF service manual that you can easily save, print or view on any device. This complete PDF manual is an Instant download.
Husqvarna 455 Rancher Workshop Service Manual Contents
Contents, Introduction, Safety Regulations, Symbols, Technical data, Service tools, Service data, Safety equipment, Starter, Electrical system, Centrifugal clutch, Lubrication system, Carburetor, Tank unit, Anti-vibration system, Piston and cylinder, Crankcase and crankshaft, Troubleshooting, Repair Instructions.
Carburettor – General Chainsaw Adjustment
Adjusting the carburettor involves adjusting the engine to the local conditions e.g. climate, altitude, fuel and type of two-stroke oil. The carburettor is equipped with three adjustment options.
L = Low speed jet
H = High speed jet
T = Idling adjustment screw
The L and H jets adjust the fuel flow to match the airflow that the throttle valve opening allows. Turning them clockwise makes the fuel/air mixture weaker (less fuel in relation to the amount of air) and turning them anti-clockwise makes the fuel/air mixture richer. A weak mixture increases the engine speed and a rich mixture decreases the engine speed. The T screw controls the throttle position when idling. Turning the T screw clockwise gives faster idling; turning it anti-clockwise lowers idling speed (see manual for complete guide).
Carburetor Type: Walbro WTA 29
See the complete service workshop manual, carburetor manual, parts list, operator manual and technical supplements PDF downloads, also the repair and service articles available on this website for more information on how to service, repair and find parts for the chainsaw.
Husqvarna 455 Rancher Chainsaw Specifications
Displacement (cm3/cubic inches): 55,5 / 3,38
Cylinder bore (Ø mm/Ø inches): 47 / 1,85
Stroke (mm/inches): 32 / 1,28
Max power/speed (kW/hp/rpm): 2,6 / 3,5 / 9 000
Spark plug gap (mm/inches): 0,5/0,02
Ignition system: SEM CD
Air gap (mm/inches): 0,3 / 0,012
Carburetor type: Zama Walbro WTA 29
Effective cutting length (cm/inches): 31-50 / 13-20
Chain speed at max power – revs (m/s – rpm): 20,0 / 9 000
Chain pitch (mm/inches): 9,52/3,8
Drive link (mm/inches): 1,3 / 0,050 – 1,5 / 0,058
Idling speed (rpm): 2 700
Engagement speed (rpm): 3 800
Max. speed (rpm): 13 300
Spark plug: NGK BPMR7A, Champion RCJ 7Y
Fuel tank capacity (Litres/US pints): 0,44 / 0,93
Oil tank capacity (Litres/US pints): 0,32 / 0,68
Automatic oil pump: Yes
Weight with bar and chain (kg / lbs): 6,2 / 13,6
See manuals for more chainsaw specs..
Husqvarna 455 Rancher Workshop Service Manual PDF
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