Avtodizel ???-238??, Operating Instructions Manual, Page: 120 / 254

120
plates. In case of occurrence of goffres on plates 4, their
elimination is made by serial loosening and subsequent tight-
ening with torque 11…12,5 kgfm of four bolts 5 fastenings of
plates to half-coupling and to damper coupling;
•
check up the correctness of injection advance angle adjusting.
Fig. 58. High-pressure fuel injection pump drive of
ЯМЗ
-238
БЕ
2 and
ЯМЗДЕ
2 engines:
1–driving half-coupling; 2–clamp joint bolt; 3–half-coupling flange;
4–drive plates; 5–drive plates attachment bolts; 6–washers; 7–dampen
coupling; 8–indicator; 9–fuel injection pump;
А
–dampen coupling
mark.
The succession of the injection advance angle adjusting of
ЯМЗ
-238
БЕ
and engines
ЯМЗ
-238
ДЕ
(fig. 59):
•
check up the fixation of half-coupling 3 on the drive shaft 1
and tightness of the bolt 5 (torque should be 43,2…58,9 Nm
(4,4…6 kgf·m));
•
screw-out (loosen) two bolts 4 and by turn of the injection ad-
vance angle coupling in limits of oval holes on half-coupling
flange align marks “A” and “
Б
”;
•
not forcing down the marks align position tighten the drive
bolts 4 with torque 43,2…58,9 N·m (4,4…6 kgf·m). Thus the
deviation of a package of plates from location in one plane
should be within of
±
1 mm. Make the measuring near to
places of fastening of plates;
•
having turned the crankshaft check up correctness of the fuel
injection advance angle adjusting. The mark non-alignment
should be no more than one division or 1° of crankshaft turn.