● Before
operating a natural gas engine, the operator must read this operation and maintenance
manual carefully and follow the operation and maintenance procedures specified
in this manual in a strict way.
● This
natural gas engine has undergone factory inspection according to the test specifications
in a strict way. Do not adjust any ECU data or increase the power of natural gas
engine arbitrarily; otherwise, all warranty commitments of our company will become
invalid.
● As engine
control module (ECU) is a precision component, the user shall not disassemble it;
otherwise, all warranty commitments of our company will become invalid.
● As rotor
shaft of turbocharger is a precision high-speed rotating component,
disassembling or collision is strictly prohibited; otherwise, all warranty
commitments of our company will become invalid.
● As there
are strict requirements for torque and angle of rotation of main bearing bolt
and connecting rod bolt of a natural gas engine, the user shall not unscrew or
disassemble the bolts. As connecting rod bolts are disposable, they shall not
be reused; otherwise, all warranty commitments of our company will become
invalid.
● The grade
of engine oil added into a natural gas engine must meet the provisions of this operation
and maintenance manual. We suggest using the special oil for Weichai natural
gas engine and special oil filter for filtering. The operator must check
whether the amounts of coolant and engine oil in an engine meet the
requirements before starting the engine every time.
● For bad air
source, banning engine working without gas filter, otherwise the service life
of engine will be shortened.
● When the
calorific value of gas composition is lower than 49 MJ/kg, the power of engine would
relatively decrease.
● Operating a
natural gas engine without an air filter is strictly prohibited.
● Do not put
a new engine into operation before it is run in necessarily. A new engine shall
be put into trial operation for 50 hours before it is used normally.
● The new
spark plug tightening torque must be as specified and the ceramic body must be cleaned
up when changing the spark plug every time.
Green Power
International Weichai
● The power
supply and earth connection of a natural gas engine electronic control system
shall be disconnected before welding any component of a generator set.
● If the
working environment temperature may be lower than 0℃ after shutdown but there is no antifreeze
additive in coolant, the coolant in water tank and engine shall be drained off.
● In order to
avoid corrosion, each ex-works engine is oil-sealed. Usually the service life
of an engine oil seal is one year. After one year, the operator shall check and
take necessary remedial measures.
● Before
using a new set, the operator shall check the natural gas line, the natural gas
feeder and the electrical system, and pay special attention to the electrical
connection for Looseness” and the high-voltage line for “virtual connection”.
● The
operator shall make sure that the battery voltage is normal and there is
sufficient voltage for the normal operation of ignition and electronic control
system of natural gas engine before starting the engine. If the engine has not
been started up for 3 times successively, the natural gas part and the circuit
part shall be rechecked carefully.
● The cooling
water used in the engine must be soft water. [If ordinary water (hard water) is
used as the coolant of the engine, it is likely to develop scale in pressure
reducer and the“frosting” phenomenon when the
engine is just started up.]
Comments
Post a Comment