Chainsaws in popular culture -- Films 2

1987 will bring under one of the most famous horror film with Sam Raimi's Ghost person play, where instead of using a chainsaw from a villain, this time is the one hero who use power tools to fight the evil, and set the correct what is wrong (previous film also contains a chainsaw, but it ultimately did not use violence). In the film the largest sequence, the protagonist Ash Williams chainsaw attention to his stumps replace broken hand (he said with a chainsaw removed), marking the protagonist from the Spirit of quitting, and choose to play a point. Chainsaw hand will have to appear in the film's sequel, and various rotary choice will often imitate, symbolizing the fight thing (until such time as a powerful tool for empowering the hero of the moment) will be completely invincible.

Due to high levels of chainsaws as weapons-related bloody, 

appears beyond this horror film is not common. A notable one was in Brian De Palma's 1983 gangster film Scarface. Problematic scenes depicting the dismemberment of another Colombian gang criminals to extract information.

In the 1996 film Epic, it was included in a scene depicting the immortal spirit of John McKenna (played by Chuck Norris) stop loggers chainsaw with his bare hands. Site posted on the Internet, and then made the scene clips on YouTube more than 5 million views become memes.

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The working principle of carburetor

When hand pushing the oil bubble, single valve outlet air from the oil resistant rubber, back to the fuel tank, and air flow from the fuel tank.Rubber cover began to recover at the same time, to produce negative pressure, the rubber cover shaped cavity suction hole inhale, quantitative chamber rubber skin sucked in urban edge, compression spring, the valve stem oil valve lift, oil gas began to flow into the tubing at this moment, the oil pump rooms filtered into quantitative room, single valve shunts after copper collar, in part by the idle speed screw adjusting control of the bore idle speed, low speed, a spray gasoline.The other part into the high-speed screw adjusting control of main nozzle, can appear more atomized gas.When closing the choke can start the engine.

Engine work, carburetor oil pump room has a side back to porosity, the pass-through crankcase, when crankshaft around a circle, as the piston moves up and down, the gases in the piston in and out of the pores, even following the carburetor oil pump chamber diaphragm vibration.Due to the effect of air flow, accelerated the feed velocity, accelerate the speed of oil, and at the same time start the quantitative chamber diaphragm vibration, the vibration of the quantitative chamber diaphragm compression reeds, carburetor start oil absorption, shunt, injection.

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Name of chain saw (inside)

1, air filter, air intake tower, carburetor, intake pipes, copper ring, inlet pipes, plastic mat, carburetor, intake pipes and fittings, and control the air intake channel.

2, gasoline tank, fuel filter, fuel pipe and other accessories, providing chain saw oil supply channels. 

3, start dialing, flywheel, the flywheel, ignition coil, flame out switch, high pressure cap, spark plugs, such as accessories, power supply function to control the chain saw. 

4, crankcase and cylinder, piston, piston ring, piston pin, piston pin, piston pin needle bearing circlip ring, piston pin and crank shaft (with link), and other accessories, implementation will combustion to produce heat energy into mechanical energy, the output torque of the crankshaft. 

5, muffler, exhaust and noise reduction. 

6, level pad, sprocket passive plate, chain wheel, needle roller bearings, clutch assembly parts, such as chain saw the idle running, the function of the saw chain is not turn. 

7, machine oil tank, oil pipe, oil pump, oil filter head, turbine, flowline and other accessories, can realize the function of chain saw lubrication saw chain and guide plate. 

8, the chain brake, the main spring, spring, oil baffle plate, saw chain tension bolts, guide wire, etc., realize the chain saw guide plate and chain disassembling and chain saw emergency braking function. Structure decision function, only to understand the structure of the chain saw, is helpful to better understand the function of the chain saw, thus more efficient use of chain saw.

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Name of chain saw (outside)

1.front  2.lock  3.air filter nut  4.throttle lever  5.trigger control arm  6.handle cover  

7.trigger  8.switch trigger  9.fuel tank  10.starter  11.front handle 12.fuel tank  13.saw chain 14.chain saw guide

Attention

1, chain saw, in the process of operation, need to loosen the brake: front to the premises upon the direction, brake loosen.

2, chain saw, in the process of operation, need to open the choke valve, throttle lever to pull, the choke off;Throttle lever back, open the choke.

3, install, chain saw, blade must be in the direction of the former, in use process, timely adjustment of the saw chain tensioner degrees.

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Maintenance of saw chain guide

1.After the saw chain wear file, trim file when in the right direction, and should be paid attention to about the Angle of the tooth, avoid running deviation when sawing;Ensure the set limit to the height of the tooth is consistent, so as not to beat.

2.Guide also need to maintain and repair after use a period of time.

3.Regularly check whether the wheel rotational flexible;Timing for roller bearing with grease, each add a fuel must give at the same timeRoller bearing is filling the complex lithium grease;Check the guide oil hole blockage, dredge and cleaning in a timely manner.

4.Guide is often used in surface,In order to make sure on both sides of the guide plate wear synchronization to extend the service life;Guide to appear"Flash""SunkenTrough "file in a timely manner.

Operating procedures of chain saw

1.  The operator should be stipulated in the product specification, normal use.2.  Pruning the branches of the green fence with density maximum principal rod diameter should be consistent with use of hedgerow pruning machine performance parameters. 3.  Work when pruning machine must be in the normal state of technology.Blades should be flexible. The gap shoud be less than gap 1 mm .The following, between reciprocating closed pruning machine interface is not over the 0.15 mm. 4.  When engine working at room temperature, starting three times to allow three back to pull the starter rope.At least one starting Work.If not or difficult to start, should find out reason, after debugging,then it can continue to use. 5.  Should pay attention to in the working process of the fastening connection.According to the trim quality situation adjust the blade clearance or replace damaged parts .Are not allowed to work with failure. 6.  After pruning it should be level off, the quality of the cut, tear rate is less than the basic without leakage10%.

Maintenance of chain saw

Daily maintenance

Check whether the throttle trigger work flexible, smooth and reliable, the idle speed is normal.
Check whether the brake is normal, and clear the brakes the place such as sawdust, sludge.
Check whether the chain precipitator is damaged, otherwise all replacement.
Check air filter.
Check the lubrication oil pump guide hole, and remove impurities in the guide groove, guide wheel bearing lubrication.
Adjust the saw chain tensioner degrees, file chain, check whether driving wheel wear.
Check whether starter and starter rope wear or damage to remove starter such as air inlet of sawdust and dirt everywhere.
Check whether the switch work normally, check all fasteners.

Week of maintenance

Cleaning the carburetor, air filter, the cylinder body heat sink of the place such as sawdust, sludge.
Check the starter, starting spring;Clean the fan (cog) leaves and air inlet.
Remove the spark plug carbon deposit, adjust the electrode gap.
Lubrication clutch bearing;Revised file guide the flash.
 

Monthly maintenance

Clean fuel tank, filter tank cleaning machine.
Check whether contact wires joint firm, good insulation.
Check the brake brake,
Sprocket wheel of the clutch, clutch plate spring, clutch disc, such as wear and tear on parts, repair or more in a timely manner
Change.
Clean up debris on the surface of the carburetor, oil.
Clean up the pressure reducing valve and dredging relief hole formation.

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