Page 277 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

Assembly of end cover
Smear mutton tallow on ‘0’ rings and assemble ‘0’ rings into the corresponding counterbores of end cover
Assemble equal number of washers .

Assemble washer and split pin on the opposite side of control lever. Assemble bush , spring . The spring should
be assembled such that the straight end (parallel to spring axis) is engaged in the corresponding groove on end
cover and U bent end is hooked on to control lever.
Engage the tenons of lever shaft to the corresponding hole of control lever and fix screw along with spring
washer . In the case of new design where hexagonal head screw is provided, assemble plain washer, spring
washer and fix the screw .
Tighten the screw (to 6 N.m (0.6 kgf. m) torque.
Check the axial play of lever shaft. The axial play should be between 0.1 and 0.4 mm (Fig 9). If not, add or remove
washer . The difference between the number of washers on either side should not be more than one. Check for
free movement of lever shaft. Smear good quality grease on the cam and the lever shaft near the bearing bushes.
• Check the overall length (L) of the spring stopper (Fig 10). The overall length should be as specified in column
‘3b’ of calibration chart. If specified length is not maintained, this can be adjusted by means of
• Screw and nut arrangement in the case of earlier design.
• Shims between the end of spring stopper and hexagonal head screw in the case of new design.
For adjusting the length hold the spring stopper by inserting a pin in the cross hole provided in the stopper body
and loosen locknut or hexagonal head screw. Adjust the length of screw or vary the thickness of shims. After
adjustment, tighten the locknut or hexagonal head screw.
Fig 9

Fig 10

Smear good quality grease on the body of spring stopper and insert into governor cover . Ensure that the spring
stopper slides. freely in the governor cover and no stickiness is experienced.
• Fix gasket on to governor cover
• Assemble end cover to governor cover and fix screws along with washers temporarily.

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CITS : Automotive - Mechanic Diesel - Exercise 15.4