Motor assembly and disassembly
7
7.1
General
For assembly or replacement, simply follow the rules outlined below:
•
make sure that the couplings of the motor, IEC or NEMA standard on Adapter,are machined baased on a precise class (IEC
60072-1);
•
thoroughly clean the coupling surfaces;
•
check that the motor is centered in the corresponding gear reducer fl ange seat;
•
Tighten the motor fastening screws to gear reducer fl ange in order to achieve a tightening torque as per ch. 5.2.
•
coat the coupling surfaces with a thread-braking seal type LOXEAL 23-18 to prevent contact oxydation;
•
insert the motor up to shoulder;
do not force the motor shaft during gear reducer coupling:
danger of serious damages.
7.2
Procedures of assembling the cylindrical pinion splined to the motor shaft
UT
.C 2439
The following assembly procedures involving the drive shaft must be performed in the order shown:
1)
mount the supplied key in the groove provided;
2)
spline the preheated pinion onto the motor shaft at
80 ÷ 100 °C
;
3)
coat with adhesive product (e.g.: LOXEAL 23-18) the portion of the motor shaft below the pinion;
4)
check that the fl exible ring is in place;
5)
mount the motor on the gear reducer by applying LOXEAL 58-14 seal type on the fl ange mating surfaces.
25
UT.D 208-2021.12-EN
Motor
Gear reducer
Pinion
Key
Motor shaft
