5.6.5. Adjustment of idling of the CD20 engine

Fig. 3.37. TNVD adjusting screws (CD20 engine): 1 — the screw of restriction of the maximum frequency of rotation; 2 — the screw of the shock-absorber of the drive of management of fuel supply; 3 — the screw of restriction of frequency of rotation of idling; 4 — the screw of the maximum supply of fuel

Warm up the engine up to the working temperature and measure the frequency of rotation of a bent shaft idling. For adjustment weaken a lock-nut and establish by the screw 3 (fig. 3.37) the necessary frequency of rotation of a shaft (see tab. 3.12) then tighten a lock-nut.