Chainsaws in popular culture -- Films Ⅰ

Chain saws have emerged countless action films are used for their intended purpose, but this is rarely, if ever, been given a significant episode in. But more prominent is the chainsaw weapons or instruments of torture itself.

Despite being a chainsaw around, they have not seen a movie since 1930, used a weapon until the 1960s, probably due to restrictions on the depiction of graphic violence Hays Code censorship.

One of the earliest films portrayed as a weapon is a chainsaw Dark Sun (1968) and Al Gore's Guide (1970). Wes Craven's 1972 film The Last House on the Left, will be called "primitive Chainsaw Massacre" After re-released 

during the campaign. 

In 1974, when Toby Hooper's The Texas Chain Saw Massacre is released can be said to be in a movie the most famous and influential chainsaw use is considered. The film based on the famous killer Ed Gein (although, unlike a movie Gein did not use chainsaw killer), etching a chainsaw into the public mind the terrible terrorist target, even if the contact is only found in the actual physical chainsaw once in the whole film. After that will direct the sequel, two independent sequel in 2003, which will receive its prequel remake. Following the release, many horror films, especially low budget who began the bloody chainsaw scene, this trend continues to this day.

To be continued...

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Chainsaw safety clothing Part Ⅲ

If the material inside the pants can wash over time. As a result, the pants should be replaced, and washed in hot water not too frequently. The same pants should be free of cracks and tears, it may move through a forest when the chain saw or timber to catch up.

Chainsaw protective trousers EU must comply with EN381-5. 

Jacket 

Chainsaw protective jacket must comply with EU EN381-11. 

For more information about the fabrics rating, see above trousers. It is substantially the same logic - protective materials are designed to slow the rate of chain cleavage and blocking mechanism, not completely protect the wearer.

Boots 

Chainsaw ordinary steel-toed boots are boots on,but the chain saw 

protective layer on the front surface of the fabric exposed. They are guided version lace leather or rubber Wellington. Popular manufacturers in Europe, including sales chainsaw boots Haix, Klima air, rock falls, MEINDL and Oregon.

In the EU, chainsaw boots must meet EN345-2. These boots must also be marked as suitable for use in sharp chainsaw, according to EN381-3 EN20345 standard practice proper safety shoes .

Chainsaw leggings to EN381-9 protection than ordinary steel-toed boots are occasional users can accept.

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Chainsaw safety clothing Part Ⅱ

Pants

Special Textile has developed a chainsaw clothing, and this development is still very active.Traditionalfabric to protect against chainsaw running useless, was immediately cut through.

There are the fabric that the use of a more severe impact and make a real fight of light, flexible and comfortable enough for the user between. This allows the user hot clothes, or to prevent the user can easily move, is in itself a security issue. A worker suffering heat stroke is not safe. Additional fabric layers can be added to the laundry to improve the cut resistance, but the clothes can not be made a powerful saw in all cutting it is impractical, even with modern fibers. Worse, saws, chain technology seems to exceed the fabric technology. High power saws and chain slashed almost impossible to prevent.

Classification scheme has been developed EU rate pants, the fabric in general, protection against cutting.

Chainsaw chain speed manual provisions. A higher level of pants are more expensive, hotter and heavier, so there is an advantage to choose pants that match the saw.

There are two standard types of trousers, A-type and C-type .A type protects only the front of the leg, and can be provided as chapped, wearing the traditional clothes, or as a traditional trousers. C-protected full-leg, almost all dressed in 

ordinary trousers, no end other clothes. CHAPS generally used for occasional farm or homeowner's application. Professional chainsaw operator will choose the comfort and ease of movement trousers and losers, ground staff and firewood tool selection,because the back was cut low-risk category 

A long trouser legs. Tree climbers and doctors would have to wear a C-type, because they will be cutting from a wider 

variety of positions. C-type trousers, of course, highly 

insulating, if wearing labor-intensive operations, such as

cutting wood may cause heat stress. In some of the principles chainsaw protective fabric works. The outermost layer may be formed both tough and slippery, to prevent damage could jeopardize filler negligible. Under this long, polyester, aramid ballistic nylon or loose laid in layers. When contacting a saw pants, the outer layer is cut off immediately by, but inside is pulled out and wrapped around the saw drive sprocket, chain suspended solids and lock it to restrict the operator's leg injuries. Pants should be slightly loose, so it was given, instead of pulling the leg into the chain saw, but stopped to pull excess fabric into a chain mechanism. After stopping the saw, pants scrapped, and saw the ground must be stripped to remove fibers, and allow it to run again.

To be continued...

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Power tools and accessories common models

Our main sales of electric tools angle grinder, rotary hammer, demolition hammer, electric circular saw,cut off machine,impact drill.

Grinder common models:100,125,150,180,230. Depending on the grinding wheel is the maximum diameter of the distinction.

100 common style: Makita 9523NB, Makita 9500, Bosch 6-100, Hita 100 (LG100), Hitachi F3 (G10SF3), Dragons 05-100, 100 Black & Decker, DeWalt 6288

125 common style: Makita 9525, Bosch 8-125 Hitachi A2 (G15SA2), Dragons 04-125

150 common style: Hitachi A2 (G15SA2), Dragons 04-150, 41-150 Makita

180 common style: Hitachi E2 (G18SE2), GWS20-180

 

Grinder commonly accessories: skull, wrench, grinding wheel plate, shields, switch (Makita 9523, Bosch 100, etc. used), self-locking, grinding wheel, wire wheel. There are a number of optional accessories according to the instructions, the bearing sleeve, insulating washers, separators, capacitors, inductors, nuts, screws, Woodruff key (also called crescent pin, pin), ring (shaft, hole)

 

Impact Drill common models: 6A, 10A, 13A, 16A, 23A. According to the maximum drilling diameter distinction.

Impact drill appearance vary widely, but the inside is basically the same, a common style Bosch, Litvin, Ling-hu, Black & Decker, Dragons 05-6A, 05-10A, 05-13A, KEN

Common accessories: drill chuck, casing, drill bits, hole

 

And the drill chucks there are two types with wire (UNF) and without wire (B), macroporous (1/2) and holes (3/8), with a key and lock points. Such as drill chuck 1.5-13mm B16 labeled means available drill sizes from 1.5mm to 13mm, drill chuck inner diameter of 16mm. If 0.8-10mm 3 / 8-24UNF means available drill sizes from 0.8mm to 10mm, 3 / 8-24UNF on behalf of an inner diameter of the hole with a wire.

 

Rotary Hammer common models: 20,26,38E. According to the maximum drilling diameter distinction.

Common models are: Bosch, Dragons, Tung Shing, Chiron, high-power, dual-use

Common accessories: size bevel gear, helical gear size, long umbrellas (with 38E), the gearbox, intermediate cover, O-ring (with the piston, the hammer, the impact of the child), pistons, piston pins, connecting rods, eccentric round, four sets (also called transfer units), ball, front cover (small hat), sleeve (hats), hammer drill

 

Cut off machine common with 110, 180. A cutting piece maximum diameter of distinction.

110 common style: Makita 4100NH, Hitachi power, Bosch

Common parts: bearing stopper blade plate, clamping screws, plate, cover, gear box, bearing seat (with power), diamond saw blades

 

Die Grinders common models: 10,25. According to the maximum diameter distinguish electric grinder.

Common styles: 903,906, Hita

Common accessories: collets, collet chuck nut, O-rings, chassis, electric grinder head

Other tools electric circular saw, sander, planer, engraving machine, curve sawing, polishing machines, trimming machines, electric chain saws, steel cutters, hammer, drill, vertical grinder, electric scissors, electric wrench, and so on.

Maintenance and maintenance of chain saw (3)

1. Should be stipulated in the product manufacturer of machine instruction manual is provided, correct maintenance.

2. Remove all clippings, soil particles and sundry.Check for loose fasteners, the phenomenon such as missing parts.Check whether the leakageOil.Should be cleaned after each use of the blade, and oil.Dirt adhering to obsolete, you should clean oil again after immersion and brush.

3. The fault check: common faults generally divided into the engine won't start or starting difficulties;Output power is insufficient, gear box overheating, etc.According to theCheck and repair machine specification.

4. Work in normal circumstances, excessive wear and tear parts serious deformation, fracture, parts, parts failure, etc., areBig fault, without thorough repair, may not continue to use.

5. The main failure mechanism and transmission parts, excluding time should be less than 1.5 hours.Abnormal failure happened at ordinary times, eliminate time below 1.5 hours (0.5 hours) is called the fault.Failure occurs, the allowed in class assignments repair downtime at work, and then continue to use.

6. Found in the working process of the loose fasteners, electrical phenomenon such as poor contact, called the small fault.In influencing quality of work and job security, however, allows temporary continue to work, to work again after the completion of repair or adjust.

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Maintenance and maintenance of chain saw (2)

Maintenance of starting device 

1. Change when starting rope or starting spring, the first thing to release starting spring pre-tightening force.
2. Be careful when remove starting line from the start of spring, prevent spring scatter pop-up cuts.
3. After the change, will be starting spring and starting wheel axle hole before assembly place daub grease, assembled again.

Maintenance of saw chain guide 

1.The file after the saw chain wear, and repair the 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 work after a period of time to also want to maintain and repair the file.
3.Check wheel rotation is 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. The 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;"In" flash" groove guide timely repair the file.

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Maintenance and maintenance of chain saw

1.Maintenance and maintenance of the fuel supply system

1.Cleaning tank regular , fuel filter, check whether the tubing is unblocked and aging and replace if necessary.

2.Cleaning air filter everyday , and according to the working condition to increase cleaning frequency. 

3.Carburetor is the most important components of the chain saw the fuel supply system, carburetor should be regular maintenance, ensure the oil duct unobstructed, adjust to all is right.

2. The cleaning and check of cylinder, piston

1.after use chain saw 100 hours, cylinder, piston should be clean,  and check the grinding of cylinder,piston ring and other components .

2.Check whether there is any scratch on the cylinder wall, flaking. Put on the piston ring cylinder block in the work area to check clearance shall not be more than 1 mm .Check the needle bearing if damaged.

3.Washing cylinder, piston, bearing, pay attention to remove the piston top, top ring groove, cylinder, in the place such as porosity, pressure reducing valve Carbon deposit.

4.The piston pin hole, the place such as needle roller bearing, cylinder wall thin coating lubricant, the piston at the top of the arrow to vent, mount the spring of piston pin.

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