Daewoo ST Series Instruções de Operação descarregar pdf (Página 123)

4. Remove both of the actuator covers. DO NOT remove or loosen the lever(16) from the actuator

shaft. Place the o-ring seal(4) into the groove on the mounting face of the actuator. Apply a small

amount of grease to the o-ring to hold it in place.

5. Swing the armature out of the actuator so that the lever(16) is out of the way. Guide the actuator

over the rack and onto the lower mounting retainer studs. Attach the top of the actuator to the

pump with the M8 X 16 mm socket head screw(5), lock washer(6), and flat washer(7). Use M6

hex nuts(8) and spring washers(9) to secure the portion of the actuator. Torque the screw to 6 -

8 NM and nuts to 5 - 6 NM.

6. Pull on the rack so that it is as far out of the pump as possible. Check that it moves freely. Place

the return spring(10) over the rack. Place the spring retainer / shut off plate assembly(11, 12) and

the M10 locking nut(13) over the threads on the rack link(1). The flats on the shut off plate(12)

must engage the flats on the link(1). Tighten the nut to 6 - 8 NM and insure that the shut off plate

is vertical and secure.

7. Test the engagement of the shut off mechanism with the rack linkage. Swing the lever back into

the actuator. Push on the armature to insure that the rack linkage operates smoothly and returns

immediately when released. Reattach the lower actuator cover(23) and tighten the screws(20) to

4 - 6 NM.

8. Loosen the fixation screw(17) so that the bearing(18) can be adjusted in its slot. Adjust the

bearing so that it pushes the rack0.5 - 0.7 mm away from its stop position. Hold the bearing in this

position and tighten the screw(17) to 4 - ? NM. The rack is now adjusted so that premature wear

of the gear segments is avoided. Confirm that the operating lever screw(19) is tightened to 12 -

13 NM. Inspect the assembly to make sure all screws are tight.

9. Ther lever has a maximum fuel adjustment set screw(14). This screw is used to restrict the fuel

rack from 1 to 14.5 mm.

Caution :

Setting fuel levels above 14.5 mm can cause the screw to hit the back cover, which can

restrict minimum fuel. This can lead to a dangerous condition. Do not operate the engine this

way. Fuel levels above 14.5 mm require a shorter stop screw, M6 X 25mm.

With the fuel pump operating on the engine, the maximum fuel setting can be set to prvide specific

horsepower. Once this setting is made tighten the lock nut(15) on the stop screw to 5 - 6 NM.

10. Move the manual shut off lever to the stop position and insure that the fuel is completely shutoff

and the engie stops.

11. With the engine shut down, install the upper chamber cover with the four scew(20, 21) and lock

washers. Note that when installed, the cover must not hit the internal lever or its stop screw.

Tighten the screws to 2 - 3 NM. Check for any oil leaks. Lock wire the screws for tamper

resistance.

Caution :

The engine should be equipped with an independent shut down device to prevent overspeed

whic can cause equipment damage or personal injury.

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Daewoo ST Series Instruções de Operação Página 123