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5.2.3 Delivery
The TBN tachometers are supplied assembled (rotor and stator) with lock ring on the rotor.
Stator fastening screws and washers are enclosed in a bag.
If, by inadvertence, when assembling, the rotor is disconnected from the stator, remove the brushes as
indicated in § 2.4, reassemble rotor and stator and follow the assembly instructions. Then replace the
brushes.
5.3 ASSEMBLY for TBN 200 and 300
The TBN tacho-generators are metering instruments and must be handled with care and in very clean
conditions. Avoid absolutely the presence of oil or dust. Do not handle the rotor via the commutator.
Fingermarks, that can be removed by cleaning with alcohol, would produce anomalies in the operation
of the generator.
See last pages for the shaft and flange dimensions and the geometrical quality required.
±
Size
between the bearing face of the tachometer and the shaft shoulder can be obtained using
0
2 .
2
adjusting washers.
After checking the geometry, place the generator on the shaft end and slip the rotor/stator assembly
up to the bearing face.
Fasten the stator with the two screws and washers.
+
Torque :
2
cm.daN for TBN 200 and
6
0
Check the correct location of the rotor on the shaft shoulder, then gradually tighten up the three
screws of the clamping ring.
+
4
Torque :
cm daN.
14
0
5.4 BRUSHESS
The technological improvements give more than 1 0000 operating hours between maintenance. Brush
wisar control could be made every 5000 h. Do not disassembly if not necessary.
5.4.1 Disassembly and monting the cap
Bouchon
plug
Kappe
+
4
cm.daN for TBN 300.
14
0
Disassembly : Use a screwdriver as lever on the base of the cap.
Mounting :
Push the cap on the top to lower it in place. Make sure
that the lower lip is in contact with the brush holder flange.
25
PVD 3405 - 01/2023
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