Parker NX Series, Technical Manual

Page: 111 / 116

111 - PVD 3663_GB_NX_March 2017.Docx
4.2.2. Preparation
Once the motor is installed, it must be possible to access the wiring, and read the
manufacturer’s plate. Air must be able to circulate around the motor for cooling
purposes.
Clean the shaft using a cloth soaked in white spirit or alcohol. Pay attention that the
cleaning solution does not get on to the bearings.
The motor must be in a horizontal position during cleaning or running.
Caution: Do not step on the motor, the connector or the terminal box
Caution: Always bear in mind that some parts of the surface of the
motor can reach temperatures exceeding 100°C
4.2.3. Mechanical installation
The operation life of servomotor bearings depends largely on the
care and attention given to this operation.

In the event that the servomotor shaft has a cotter pin, make
sure that the coupling components have been balanced
correctly without the cotter pin, the servomotor having been
balanced with its cotter pin.

Prohibit any impact on the shaft and avoid press fittings which
could mark the bearing tracks. If press fitting cannot be avoided,
it is advisable to immobilize the shaft in motion; this solution is
nevertheless dangerous as it puts the resolver at risk.

Use the thread at the end of the shaft in accordance with the
diagram for fitting pulleys or accessories. It is possible to put
pressure on the shoulder of the shaft located in front of the
bearing.

In the event that the front bearing block is sealed by a lip seal
which rubs on the rotating section (version IP 65), we
recommended that you lubricate the seal with grease thus
prolonging its operational life.

In the event that the drive system uses a pulley and belt, the
drive pulley must be fixed as close as possible to the flange.
The pulley diameter is to be selected so that the radial load does
not exceed the limits given in the catalog.