HYUNDAI AERO TOWN D6DA 2010 hệ THỐNG NHIÊN LIỆU adjustment

At this moment, fixation of control rack is required, that is, maintain the position of speed control lever at idling and raise the RPM of pump up to 500~600r/min then switch speed contr

Attachment of injection pump

1

Attach injection pump to pump tester

Turn the flywheel 2~3 times with lever and see if the center of coupling is in the right place then connect link bolt(Marked as an arrow) of pump tester

2.Connect fuel hose and injection pipe to injection pump

3

Provide cam chamber and governor chamber with oil of injection pump Put the cap on where the feed pump is detached after provision of oil

4.Loosen the maximum speed stopper bolt, idling stopper bolt and full load set bolt 5.Loosen the idling spring and lock nut of governor shaft

6

Separate the cover of boost compensator.

Attachment of adjustment device(harness)

1

Attach adjusting device to pump tester

2.Set the lever perpendicular to the supporter

3

Set "O" position of scale plate on the pointer of lever and fix it with lock nut under the handle

4.Set the pin "A" in the center of lever shaft

5.Put the pin "B" in the hole of speed control lever

6

Check if the operation and link occur smoothly when speed control lever is adjusted to its maximum speed position and if control rack is operated without any problems

Attachment of measuring harness

1

Attach the spacer to pump housing

2.Attach assembled parts to control rack after assembly of joint A and bushing 3

Assemble the bushing temporarily to spacer.

Bushing hole for joint A is eccentric So, fixate the bushing for joint A to move smoothly

4.Attach joint B to dial gage

5.Assemble dial gage to holder and attach holder to bushing

Setting zero point of control rack

1

Set the speed control lever at idle position

2.Turn the governor shaft lightly and tighten nut in it

3

Raise pump RPM up to 1000~1200r/min and pull the control rack completely to set and fixate zero position of dial gage

Adjustment

Adjustment notes

1

Fixation of control rack

Adjust the injection timing and quantity of injection pump before adjusting governor

At this moment, fixation of control rack is required, that is, maintain the position of speed control lever at idling and raise the RPM of pump up to 500~600r/min then switch speed control lever to maximum speed position(full speed) and then set control rack to +3mm position from full load position using full load set bolt

Adjust quantity of injection under this condition

2.Adjustment of torque cam

Fix the torque cam adjustment nut using lock screw

3

Manipulation of speed control lever

In case of manipulating speed control lever to maximum speed position(full speed), it is necessary to raise the RPM of pump up to 500~600r/min at idling lever position

This keeps sensor lever from separating from torque cam

4.Adjustment of idling and full load

In adjusting idling, attach the return spring to speed control lever for speed control lever

to contact idling stopper bolt and for speed control lever to contact speed stopper bolt in adjusting full load

Governor spring setting

• Temporary idling lever setting

• Adjustment of idling spring

• Governor spring setting

• Adjustment of Idling

Full load rack position

• Adjustment of full load rack position

• Torque cam adjustment

Adjustment of maximum speed control

Adjustment of boost compensator

• Adjustment of operating stroke

• Adjustment of operating initiation

position

Governor spring setting

Temporary setting of idling lever

1

Maintain the position of speed control lever where it touches idling stopper bolt

2.Operate the pump at the RPM of Na r/min(80~100r/min) and adjust the position of control rack until it reaches Ra mm position with idling stopper bolt then fix the idling stopper bolt using lock nut

In this case, check if the angle of speed control lever is within the range of

predetermined angle as written in the data sheet with scale plate of adjustment harness

Adjustment of idling spring

1

Maintain the speed control lever where it touches idling stopper bolt

2.Operate the pump at the RPM of Nc r/min and adjust the idle spring until it reaches Ra

mm position then fix the lock nut using wrench

Operate the pump at the RPM of Nb r/min Check the position of control rack if it is at

Rb mm

If not, adjust the idle spring adjustment rest and repeat the adjustment No.2 as above

Adjustment of governor spring setting.

1

Maintain the position of speed control lever where it touches idling stopper bolt. 2.Adjust the governor shaft so that the position of control rack at Nd r/min become Rd

mm, then fix the lock nut using wrench.

3

Operate the pump at the RPM of Ne r/min Check the position of control rack if it is at

Re mm

It not, repeat adjustment No 2 until it becomes Re mm within a tolerance range

4.Raise the RPM of pump and check if the RPM indicates "Nf" when the position of control rack reaches "0"

Adjusting Idler

1 Keep speed control lever touched on idling stopper bolt

2.Make pump work at Nc1 r/min, and adjust the idling stopper bolt until control rack moves to the range of Rc1 mm Next, fix the idling stopper bolt with lock nut (point H) 3

Keep up the rotational frequency of the pump and check it when control rack reaches to

"O"

4.After finishing adjusting, see if the angle of idling speed control lever ranges within the standard angles written on data sheet by referring to scale plate of the control device

Adjusting Full Load Rack

Regulate the position of full load rack within the control rack position, while the boost compensator working

Adjusting the position of full load rack

1

Get the speed control lever contacted on full-speed stopper bolt.

2.Adjust the full-speed stopper bolt at the pump speed a little bit lower than No r/min, and pre-tighten the lock nut

Get the pump working at Nl r/min, adjust the full load bolt until the position of control rack comes to RH3mm, and then fix the full load bolt with lock nut

A If you tighten the full-load set bolt, control rack position will come down

B If you loosen the full-load set bolt, control rack position will go up

Adjusting Torque Cam

1

Keep the speed control lever contacted on stopper bolt

2.Operate the pump at Nj r/min, screw torque cam-adjusting nut until the control rack position reaches Rh2, and then fix up the adjusting nut with special wrench

Adjusting point varies depending on the type of injection pump; therefore, it must

be fixed on the basis of injection pump test sheet

(Procedures of adjusting torque cam)

A Unfasten torque cam lock screw with a screw driver

B Adjust torque cam using a wrench

C After the adjustment, fix the torque cam lock screw with a screw driver

Keep up the pump rotation from Ni r/min-100 r/min to Nnr/min, and see if control rack position and pump speed match with the governor-capacity graph

4.If the pump speed does not match with control rack position, repeat the 2 above

In case that pump speed does not satisfy the standard range of control rack position, replace the torque cam and re-adjust it

5.Check if injection satisfies the standard range on each adjusting point (A~C) of

standard lever setting When the injection does not reach the standard, adjust full-load set bolt and torque cam by minutely screwing the adjust nut

If this adjustment fails to be properly conducted and injection rate does not range within the standard, it will cause the lack of engine power and emission of gray smoke

Adjusting Full Speed Control

1

Keep the speed control lever touched on full speed stopper bolt

2.Get the pump working at Np r/min, adjust the full speed stopper bolt until control rack position reaches Rpmm, and then fix the full speed stopper bolt with lock nuts

3

Get the pump working at Nq r/min, and check if the control rack position comes to Rqmm

If control rack position does not reach "Rq", repeat 2 above and re-adjust Rp until it reaches Rq within the accepted range

4.Increase the rotational frequency of pump, and make the control rack return to "0"

5.Keep up the rotation gradually from No r/min or below, and see if control rack at No r/min begins to come down from Rh4

6

After adjustment, check it out from adjustment device scale that the angle of the control lever at full load ranges within the standard of data sheet

Adjustment of Boost compensator

Installation of Air Hose

1

Install boost compensator cover and governor cover gasket

2.Link air hose into boost compensator

Adjustment of operation stroke

Keep speed control lever contacted on stopper bolt.

2.Get the pump working from "0" up to N1 rpm

3

Adjust the screw for adjusting control rack position with a wrench, in order that control rack position could move from R2 to R1

4.Increase the pressure up to that of data sheet, and check if rack position for P2 falls on R2

Selection of Push Road

1

Keep the boost pressure up to the maximum pressure of injection control sheet

2.Check the depth from the surface of housing to lever, using a gauge In case the depth overreaches the prescription, replace the push road When replacing the push road, governor cover needs to be taken out

Adjustment of Start Position

1

Keep the speed control lever contacted on full speed stopper bolt

2.Remove plug from the adjust hole

3

Increase the boost pressure, and adjust the nut so that control rack can start to move from R1mm at boost pressure P1

When using a screw driver, be careful not to damage the adjusting nut

4.After the adjustment, cover plug and cap onto its respective appropriate position