TCH.1C-27J-2-27JG
2-47.3 MEASUREMENT OF ELEVATOR
CONVENTIONAL PLAY - RIGHT ELEVATOR
) (Cont'd)
A.Gradually apply a load upwards up to 250 N
maximum, leaving out the reading on the
comparator.
B.Stepwise unload, every 50 N, up to zero load and
simultaneously read, on the comparator, the
related displacement value of the right elevator.
C.Stepwise load downwards, every 50 N, up to 250 N
maximum and simultaneously read, on the
comparator, the related displacement value of the
right elevator.
D.Stepwise unload, every 50 N, up to zero load and
simultaneously read, on the comparator, the
related displacement value of the right elevator.
E.Stepwise load upwards, every 50 N, up to 250 N
maximum and simultaneously read, on the
comparator, the related displacement value of the
right elevator.
8.Put the values obtained in a diagram (refer to figure
) and draw a graph, load applied Vs
surface displacement.
9.To calculate correctly the backlash (refer to figure
diagram load applied vs surface displacement has
been drawn:
A.Draw the tangent to the highest point of the
unloading curves (U1 and U2) and of the loading
curves (L1 and L2) up to the intersection with the
surface displacement axis.
B.The backlash value C1 is the distance between the
intersection of the lines U1 and L2 read on the
surface displacement axis.
(Cont'd)
27-30-10
2-369