Kipor KD388 Operation Manual page 18

If the injection pressure is incorrectly, you can screw down the injector shell,
replace the different thickness adjusting gasket, make the pressure reach the
right value 20 0.5 Mpa
The injection pressure is right, but the quality of the spray is bad. You can clean
the injector orifice or replace the injector element
Put the injector into the cylinder cover, the gasket should be original, to make
sure the unit's extended distance 2.2~2.3
distance is too large, the power, fuel consume, exhaust smoke of the diesel
engine, will be affected greatly.
5.3.5Check for every 1000 hours:
5.3.5.1Check and adjust of injection timing
The adjustion need special tool, special
knowledge and skill, you should ask a respected
professional person do it.
Concrete steps
a. Remove all high-pressure oil pipes and bolt cap,
install a micrometer in the bolt hole. Press the
meter into 2 mm .see the fig.
b.Turn the crankshaft to put the 1-cylinder piston in
front of the top dead center about 30
adjust the micrometer to zero. Waver the belt wheel,
and check the reading of the micrometer. See the
fig
c.Turn the crankshaft as crankshaft rotation
direction: as clockwise rotation the belt wheel, and
align the oil supply scale mark 16
wheel with top dead center on gear room cover.
See the fig. The reading of the micrometer is
0.5mm. If not, the oil supply timing is wrong, need
adjust it.
d.The adjustion method is:
Loose the three fixing nut of injection pump and
the fixing bolt of injection pump bracket, adjust the
injection timing by changing the angle of injection
pump installation. See fig.
*If the reading is greater than 0.5mm, pull the oil
pump shell upside (away from engine). Reduce the
reading to the standard value; if the reading is
smaller than 0.5mm, push the oil pump shell upside
(near engine). Increase the reading to the standard
value.
mm If the warp of the extended
Adjust the injection pressure
~40
on belt
Screw up the fixing nut of injection pump and fixing bolt of injection pump
bracket after adjusting.
Remove the micrometer, install bolt cover.
Install high pressure oil pipe of 3 or 4 cylinder in turn.
5.3.5.2 Clean the scale and iron rust of cooling system
There will be much iron rust and scale in the radiator after running 1000 hours;
it will make the cooling water deterioration, reduce the radiating effection. You
should clean it at this time.
The work need special knowledge and skill, you should ask a respected
professional person do it.
5.3.6 Check after running 2000 hours:
5.3.6.1Check and replace the fuel, lubricating oil and cooling water and rubber
hose
Check rubber hose at time, if it is broken, please replace new one.
5.3.6.2Check and lap the seal band of inlet and exhaust valve.
The work need special knowledge and skill, you should ask a respected
professional person do it.
Check the sealability of valve, the subquality product of the valve, the width of
seal band and the clearance between the valve stem and valve guide
5.3.6.3Check the performance of the injection pump
The job needs oil pump test bed, adjust by professional man. Check oil supply
quantity of rated spot, the uniformity of each cylinder. Adjust the flexibility of each
part, the highest and lowest rotation speed limit and so on.