Husqvarna ’s model 40 chain saw is designed as a mid - range byword for lighter and episodic householder trim down needs . This saw is smaller and lighter than a professional felling adage but openhanded and stronger than an electrical chain saw . The spec for this chain saw have been localize at Husqvarna to achieve the maximum operation . You should use these specification during fix and maintenance to ensure the highest level of performance .
The Engine on the 40
The model 40 chain saw has one plunger , which moves up and down inside the cylinder . This plunger is 40 centimetre cub or 2.43 cubic inches . When the piston moves up and down , it uses a CVA of 32 mm or 1.26 inch . This piston go inside the cylinder bore , which for the model 40 is of 40 mm or 1.57 inch . When the 40 reaches an operating swiftness of 9,000 rpm ’s , the engine creates about 2 kW of superpower . The maximum speed for this engine , without a full load , is around 12,500 rpm ’s , which you should never aline the gamey speed carburettor screw to go above . The idle speed on the 40 is 2,500 rev ’s . The clutch uses enough centrifugal military unit to push the clench shoe and hold close spring outward to engage the clutch tympan and sprocket .
The Ignition System
The R.E. Phelon Company manufacture the 40 ’s ignition system . The spark plug used in the 40 ’s ignition system is a Champion RCJ 7Y. This spark chew will need an electrode col of .02 column inch or .5 mm . The firing faculty has two wires that lead out of it : the lead telegram and the shortsighted - electric circuit ground telegram .
The Fuel and Lubrication System
The carburetion system on the 40 chainsaw is a Zama C1Q , which employ a butterfly stroke valve . On the end of the carburetor , an integrate fuel heart suck fuel up from the tank and into the carburettor via a diaphragm that pulse with the crankcase . The fuel tank ’s maximum capacity is 1.06 pt . or .5 L. The mix fuel used on this engine should only be a 90 - octane or above steady unleaded fuel mixed with atmosphere - chill two - hertz engine oil color . The mix ratio for the fuel should range from 25:1 to 33:1 . You should never apply self-propelled petroleum as the oil for mixing ; outboard two - cycle or four - cycle rock oil will also damage the fuel system if used . The oil tank ’s capability is .53 pt . or .25 L. The 40 also uses an machinelike oiling system with an adjustable screw that allows you to control the flow of Browning automatic rifle rock oil .
Bar and Chain Specifications
The standard bar size of it that comes from the manufactory is 13 inches or 33 cm . The 40 can also run with a 14,16 and 18 - inch prevention . The functional cutting length for these saloon lengths ranges from 12.6 to 17.5 inches . The maximum Ernst Boris Chain pep pill at full power will be 17.4 meters per second . The pitch for the Ernst Boris Chain is commend to be .325 inches that has a drive link of .05 in thick . The drive cog on the 40 expend seven tooth .
