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KD 477-2 Workshop Manual_cod. ED0053029370_1° ed_ rev. 00

XIII

Checking start of injection

1. Connect fuel tank to injection pump.

2. Bring accelerator lever to max. position and piston, ywheel side,

at compression beginning (cylinder No 1)

All operations are to be carried out with the rack bar in wor-

king position to annul the delay caused by the notch on the

pumping element of the injection pump.

3. Fit the special tool, p.n. 00365R0940, to the delivery valve holder

(ywheel side) as shown in gure 84.

. Insert a band (g. 85) to ease the tension of the spring.

5. Turn the ywheel slowly until the column of diesel fuel inside the

special tool starts to move. This indicates the start of static injec-

tion.

At this moment injection pimp delivery starts (g. 86) and the top

dead centre reference on the air conveyor must coincide with the IP

mark punched cm the ywheel (g. 87).

If the IP mark falls short of the notch on the air conveyor, injection is

too fast. The injection pimp must be disassembled and shims must be

added between the pump ange and the crank case.

If the IP mark falls after the T.D.C. reference notch, injection is too

slaw and the above operation is to be inverted.

Bear in mind that every 0.1 mm shim under the pimp corresponds to

a 2.5 mm rotation of the ywheel.

Repeat operation on second pumping element.

Should the ywheel need to be replaced, the top dead center com-

pression position of the pistons is to be determined as per page 40

and the start of injection according to the following table:

ENGINE ASSEMBLY

Ø ywheel

I.P.

236 mm26° = 53,5 mm

Kohler KD 477-2 User Manual

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