Longines L590.2 Maintenance Manual page 15

8.4.7 Fit in the following order and lubricate :
-the rotor 4211 (pinion facing upwards)
-the large driving wheel 201.1 (pinion facing
downwards)
-the fourth wheel 220 (pinion facing up-
wards)
-lubricate the tube and fit the mounted
center-second pinion 275.1
-the mounted center-second pinion 275.1 .
Be careful not to damage its spring . Do not
lubricate the friction second pinion -
spring
-the third wheel 210 (pinion facing upwards)
-the intermediate wheel 203 (pinion facing
· downwards)
-the train-wheel bridge 110, fixing it by its
two screws (511 0 long and 5110.1 short)
-the stop lever 9433 by sliding its pivoting
point under the pin; verify if the pin of the
setting lever is correctly engaged in the
hole of the lever.
8.4.8
Check the shake of wheels and pm1ons
which should be between 0.03 and 0.05 mm.
To measure the endshake of the rotor, push it
upwards and then downwards with non-
magnetic tweezers. Normally, the rotor is
held by its magnet in an intermediate
position of equilibrium.
N. B.: The train is braked by the magnetic field
existing between the rotor and the stator. It is
necessary to bear this in mind when checking the
wheels for free action .
8.4.9 Fit in the following order:
-the negative bridle insulator 4046
-the electronic module 4000, fixing it by its
four screws
(54000).
Be careful not to
damage the coil with the screwdriver
-the upper magnetic screen 4038
,
fixing it
by its two screws (54038)
- the positive bridle 4401 , fixing it by its
screw (54401
).
8.4.1 0 Carry out the various tests indicated in
section 9.
42 11
~
5110
9433
15