Yangdong Co. Y90 Series Specifikace stáhnout pdf (Strana 30)

Special tools are necessary

tor

dismantling

assembling the crankshaft timing gear.

The

camshaft timing gear

can

got

out

two

bolts

the

gear

spoke which are turned

stag,geringly and evenly.The timing idler is located

the

cylinder block by slide fit.The

injection

pump

timing gear is assembled on the timing gear seat which

fixed on the camshaft

the injection pump.Whenever three bolts setting

the

injection

pump

gear

are

loosened,the

injection pump

gear

can

drawn out.The injection

pump

gear is pushed

out

when

the"three

bolts M8

X 35 are staggeringly ti.gbtened on the gear seat.

VB.Fuel

and

Governin2

System

fII

The

fuel and governing system is the main operating section

the diesel engine . It is

composed

the fuel delivery pump, (uel filter, injection

pump

governor, fuel injection and fuel

combustion chamber.

return

pipes,

etc.as

shown

Fig. 10.

The fuel

pu,nped

the

fuel

delivery

pump

from

the

fuel tank into the

injection

pump

through the fuel tilter.

The diesel fuel is

delivered through the

injection pipe under

high

pressure

produced

the

plunp

and is then atomized

by the injector before

1_~_--3

Fig. 10 Fuel and governing system

1. Fuel

return

pipe 2. Fuel

injedion

pipe

3.lnjedor

4. Injection

pump

S. Fuel filter 6. Governor 7.

I"'uel

delivery pump

thein

burning

The

fuel delivery

pUlnp

a single-acting piston type pump located

the outside

the injection pump.The

eccentric

caln,\\'hich

set on the camshatt

injection pump"dnves the thet delivery pump

\vhich finally presses the fuel into the fuel cavity in the injection pump_

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Yangdong Co. Y90 Series Specifikace Strana 30

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