A car needs a lot of different parts of the accomplishment of its
threaded connection, vice, and strongly associated or not directly affects the
use of cars. More circumstances still in generators In the design of this car with a equivalent
locking measures commonly used friction locking with spring pads, or particular
preload locking self-locking thread, etc.; automatically locking a locking
cotter pins, lock piece locking, anti-fuse pine. However, only in the correct accomplishment
of these measures, it will really play a role in locking screw.
Disc spring washer assembly should be directed to the correct
Disc spring washer for automatic surface does not produce more
scratches, and thus escalating use of the car, but if not installed appropriately,
it will not serve to prevent loosening partnership with thread. For example:
EQ1090 Dongfeng Automobile communication second shaft rear flange nut dish
installed between the flange gasket dread spring, if the nut loose resulting in
improper fitting will cause the speedometer drive gear slipping, the speed
indicator and odometer Mileage is generated between the errors. Meanwhile, the
second shaft third gear before leaving the rocky ledge jump occurs file.
Correct compass reading should be a concave conical spring washers toward the between
member, convex surface facing the nut. Tighten the nut so that, due to the
force deformation disc spring washers, bearing surface response and play by
locking effect.
Cotter pin lengths should be suitable if the engine connecting rod
bolts loose can cause connecting rod bearing Sanguine, the engine produces
abnormal noise, or even damage the engine related parts. Decomposition check
some rod bearing failure abnormal sound, often find that an individual
connecting rod bolt lock nut cotter pin has gone, and its cause is due to the
cotter pin is too long, high-speed movement of the crank arm scraping hit to
break, finally off. Determine the correct length cotter way is to open the lock
pin into the corresponding hole of the nut, hand percussion hammer in place,
the opening does not exceed the length of the pin projecting crank arm plane,
and required that the cotter pin lock available.
Wire taut direction should be properly insured
Some parts of the car chassis (e.g. shift fork and shift fork
shaft connecting bolts) an insurance wire to prevent thread loosening; it is
often used in a threaded locking bolt group. Insurance locking wire is more
reliable, but the setting up should pay attention to the selection and
specifications of the insurance penetration wire screw hole after pulling
direction. Insurance is not easy to go through the wire is too thick, the
diameter should be slightly smaller than the diameter of the perforations,
interspersed with a slight resistance when you can. Difference between the
insurance penetration in the right direction or not wire method is: If a bolt
loosening, insurance wire in tension state, that will loosen a bolt tensioning
the adjacent two screws to the correct otherwise incorrect.
Tablets should be locked in the lock side of the plane of the nut
Larger pieces of the car locking nut locking latch is often used,
such as automotive steering knuckle nut, front derailleur second shaft lock nut
and so on. Locking plate locking nut should be tightened to the specified
torque, it will slice off to the lock nut on one side of the plane while it
closely aligns with a hammer. Never connect the locking plate emotionally
involved to the nut edges and corners, so that is not a good role play against
loose.
Spring washer flexibility should be good, right size
Spring washers, easy installation, low manufacturing cost, is
widely used in the car. It is the elastic deformation of the gasket, the screw
vice axial tension, while the gasket beveled tip also helps lock. However, this
washer is in use due to heat or prolonged density and loses their elasticity.
Therefore, before you install spring washer, you should check whether the
failure of its elasticity. Examination method is to look at both ends of the
upper and lower gasket interface are staggered at a certain degree, or if it
does not stagger angle is small, this washer has timed out. Meanwhile, washers
size should communicate with the size of the mating bolts, washers, nuts OD
little kid appropriate.
In summary, despite locking threaded associations for smaller
parts, it seems trivial, but if ignored when performing arts automotive repair
these problems will not only affect the quality of maintenance, will give the
normal use of the car leaving hidden faults
No comments:
Post a Comment