How to Disassemble Ricardo Diesel Generator Set
by Starlight Generator dieselgeneratortechAt present, according to the different
power consumption and various specific conditions, each unit uses diesel
generator sets, and some units use gasoline generator sets, although various
types of machines have their own structural characteristics. However, the disassembly
methods are basically similar. The following takes Ricardo diesel generator
set as an example to introduce the method and steps of disassembly of the
generator set.
I Disassemble large external
accessories
1. Release fuel, oil and cooling water
A. Release the diesel fuel in the tank.
B. Release the oil from the oil sump
and the oil cooler.
C. Open the drain switch of the body,
water tank and oil cooler to clean the water in the generator set.
D. Keep the maintenance site clean when
releasing fuel, oil and cooling water
2. Remove the wiring of the switchboard
and the generator and the diesel engine separately, and make corresponding
marks to remove the oil, water temperature and oil pressure sensor from the
diesel engine.
3. Remove the power strip fixing screws
and lift the power strip from the rack.
4. Remove the air filter, muffler,
intake manifold and exhaust pipe.
5. Remove the connecting screws of the
synchronous generator and the diesel engine, and use the lifting device to
disengage the two.
When disengaging, pay attention to the
gasket under the generator base can not be lost, and can not be exchanged at
will. Otherwise, after the generator set is assembled, the center line of the
generator and the diesel engine will not be in a straight line, which will
cause the vibration of the generator set, even Caused a serious accident. At
the same time, pay attention to personal safety during the lifting process.
II Disassembly of oil supply system
1. Close the oil switch, remove the
various oil pipes, and lift the fuel tank.
2. Remove the high pressure oil pipe,
high pressure oil pump (injection pump) and fuel injector.
When disassembling the injector, pay
attention to keep all kinds of gaskets, and do not lose or damage them.
Otherwise, the cylinder will leak from the vicinity of the injector, so that
the diesel engine can not work normally.
3. Unscrew the fixing screw of the
diesel filter and remove the filter.
III Disassembly of cooling,
lubrication, start-up and charging systems
1. Unscrew the upper pipe clamp screw, unplug the rubber hose, then loosen the clamp screw connecting the water tank to the water pump, and finally loosen the fixing screw of the water tank to lift the water tank.
2. Loosen the belt adjustment screw,
push the charger toward the machine, remove the belt from the pulley, unscrew
the charger fixing screw, remove the charger, then loosen the fan and water
pump fixing screws, and remove the fan and water pump and the fan belt.
Note: When disassembling the charger,
the wires should be marked to avoid wrong installation.
3. Remove the oil filter, oil cooler,
oil pump and starter.
Also pay attention to the connection
method when disassembling the starter.
Disassembly methods and procedures for
valve trains, flywheels and gearbox covers, cylinder heads, piston rod sets,
crankshafts, cylinder liners, etc.
I Disassembly of the valve train,
flywheel and gearbox cover
1. Open the valve chamber cover, first
remove the oil return screw on the oil pipe and cylinder head, and remove the
rocker arm set, push rod and ejector pin.
2. Remove the flywheel. When
disassembling, be careful not to lose the vibration damping device on the
flywheel housing and use the clamp correctly.
3. Remove the gear cover (check the
intermeshing gear marks. If there is no mark, mark the gears and remove the
gears).
4. Take out the camshaft.
II Cylinder head removal
Loosen the cylinder head nut, take off
the cylinder head, and take out the cylinder head gasket. When disassembling
the cylinder head nut, pay attention to the outer and the inner, and use the
torque wrench (kg wrench) to perform symmetrically and evenly according to the
diagonal 2 to 3 times. When placing the cylinder head, place it on its side and
do not touch its work surface to the table top (or floor).
III Disassemble the piston rod set and the crankshaft
1. Remove the carbon deposits from the
upper part of the cylinder liner.
2. Remove the crankcase side cover.
3. Rotate the crankshaft, place the
large end of the connecting rod set of the piston connecting rod to be removed
at the side cover of the machine body, remove the locking wire of the
connecting rod bolt, and then use the sleeve and the torque wrench to separate
the joint symmetrically and evenly for 2~3 times. Rod bolts. Use your hand (or
tap it with a small hammer) to remove the large cap of the connecting rod and
remove it.
If the two connecting rod bolts are
removed and the connecting rod big head cover is not easy to remove, insert the
long rod of the socket wrench into the bolt hole of the big end of the
connecting rod, and then rock the rod up and down. If you can't take it off,
you can use a hand hammer to gently tap the post, usually you can take it off.
During the removal process, the large head cover of the connecting rod should
be supported by hand to avoid the inside of the oil casing and the impact
bearing bush.
After removing the large cap of the
connecting rod, slowly rotate the crankshaft so that the piston is at the top
dead center. Then push the big end of the connecting rod by hand to disengage
it from the journal of the crankshaft, and then slowly rotate the crankshaft.
When the crankshaft and the connecting rod are separated by a gap of about 10
cm, the wooden rod is inserted, and finally the shaft is used as a fulcrum, and
the wooden rod is tilted to push the piston rod set out of the cylinder liner.
During the removal process, the large end of the connecting rod is prevented from
hitting the inner wall of the cylinder.
After the piston rod set is taken out.
Install the removed bearing bush, gasket, bearing cover and bolts in the
original position (mark) to avoid losing or misaligning the cylinder sequence.
4. Separate the piston from the
connecting rod. First remove the piston pin retaining spring and then use the
piston pin to push the piston pin out. If it is an aluminium piston, it needs to
be warmed up before it is pulled out.
5. Remove the crankshaft. When taking
the crankshaft, you can put a copper block or a wooden block on one end of the
crankshaft and hammer it out with a hammer.
IV Remove the cylinder liner
Whenever possible, remove the cylinder
liner and use special tools whenever possible. In the case of forced, the oil
casing is removed, and the cylinder liner is driven out with a wooden stick
from below.
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Created on Jan 24th 2019 00:54. Viewed 348 times.