Page 268 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

In the above control lever position and the speed, adjust the full load stop screw until 1-2 mm more control rack
travel (C.Tr.) is obtained.(Fig 26)
Increase the speed until governor cuts off completely. Check whether the control rack has gone back to 0.3-1
mm. If not the thickness of compensating washer (71) between the guide sleeve assembly and the actuating ‘T’
of guide lever has to be changed.
Fig 26

Note: The distance of 19+ 0.2 mm between the inner shoulder of the actuating ‘T’ of the guide lever
and the governor housing face with the fly- weights in their closed position should be maintained.
Refer point 4.4 of repair instructions.
0.5 mm shim = 1 mm C.Tr. (approximately).
Bring the control lever to vertical position and set the scale of the control lever adjusting device to 40°. Then bring
the control lever to the maximum position indicated in the Test chart column 1, bearing in mind that the angle given
is intended only as a guide. Check whether the control rack travel is 20-21 mm. Screw-in the maximum speed
stop screw until it touches the control lever and secure provisionally with lock-nut.(Fig 27&28)

Fig 27 Fig 28

Setting and testing the maximum speed control(without supplementary idling spring)

Run the pump at the specified maximum rated speed and set the control lever to the maximum speed stop screw.
Adjust the notch screw to get the specified control rack travel (without tolerance). When making the notch screw
adjustments, stop the pump and bring the control lever to ‘STOP’ position. (Fig 29)

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CITS : Automotive - Mechanic Diesel - Exercise 15.3