For secondhand diesel
generator set, price maybe is the most well advantage. Its price is more
cheaper than new diesel generator set, there also are source of goods at any
time. For the users who eager to use and short-term use.
But maybe there are also
many problems:
1.If do not care, maybe
we buy a diesel generator set which has not quality warranty period, even do
not have after-sale service. If has faults during users using secondhand diesel
generator set, they will pay money to repair it. This is not comparable to the
free service provided by generator manufacturers.
2.The failure rate of
the secondhand diesel generator set is relatively high, so it is impossible to
inquire about the previous maintenance history, what faults happened in the
previous use, and how the maintenance status is, and the accurate basis can not
be obtained.
3.Fuel consumption is
relatively high. Because components of genset age a lot, service life is short
and maintenance costs is higher.
Thus, new diesel generator set is better than a secondhand diesel generator set.
In terms of maintenance
work, new diesel generator set is better than secondhand diesel generator set.
Diesel generator manufacturers will send technicians to the site in time to
debug the new diesel generator set for users free, conduct operator technical
training, and clearly inform users the warranty period and warranty content.
In Starlight factory,
the new diesel generator set is strictly tested before leaving the factory, and
only after passing the test, it can leave the factory. In this way, the quality
of diesel generator set is relatively stable and the failure rate is low. In
addition, Starlight company tailor to the specific requirements of users to
manufacturer the diesel generator set. For example, if when users have
requirements on noise, we will produce silent diesel generator set. If used for
construction site, we will produce mobile trailer diesel generator set, so that
can meet requirements of users.
If you still prefer to
buy secondhand diesel generator set, please pay much attention, do not buy
reconditioned genset. In order to let more users know how to whether the diesel
generator set is secondhand and good quality, here Starlight company also
shares some methods:
1.Inquire purchased time
and uses of the secondhand diesel generator set, and reasons for sale.
2.Inquire the past
repair states, which main parts have been replaced, and what problems during
past use, so as to have a more comprehensive and systematic understanding of
the diesel generator set.
3.Check the label and
appearances of secondhand diesel generator set. Inquire which manufacturer
produced it, produce time; Check whether the appearance of the paint is falling
off, whether the parts is defective, whether the genset model is eliminated.
New machines generally don't have such problems.
Before buying secondhand
diesel generator set, need to test carefully by rocking crankshaft, pulling
flywheel, starting machine, etc. Testing is a very important step. The specific
inspection steps are as follows:
1.Rotate the crankshaft
to let injector nozzle supply fuel. If the injector nozzle makes a clear sound,
it shows that the performance of the nozzle and plunger pair is good; if there
is no abnormal sound such as "scream" in the wheel chamber, it
indicates that the gear wear is not serious.
2.Pushing down the
flywheel, if silent, indicates that there is little gap between the crankshaft
main shaft stem and bearing bush.
3.Turn around the
flywheel so that the piston approaches the bottom dead-end point, and then
shake the flywheel left and right. If there is no "ticking" sound, it
shows that the wear between the connecting rod shaft stem and the tile is not
serious.
4.Reduce pressure of air
cylinder, rotary crankshaft. When reduce pressure, if the rebound force of the
piston is large and the flywheel rotates rapidly, it shows the wear degree of
the cylinder, piston and piston ring is small.
5.When rotary
crankshaft, the indicator of the engine oil pressure gauge should not be less than
1 or the red mark of the oil indication can be raised quickly and the pressure
under the hand should be laborious.
6.Start the genset. If
easy to start, smoke exhaust is colorless or light gray, and the speed is
stable without noise, which shows that the technical condition of the
secondhand diesel generator set is good.
Even if we provide these
inspection methods, we still do not suggest users to buy secondhand diesel
generator set. Because this equipment must need to care quality, to avoid it
can not work normally. Otherwise, maybe there are many problems. Here is our
suggestion for your reference, hope can be helpful for you. More solution
methods, please contact us by email sales@dieselgeneratortech.com.
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