131 – Pvd3665_Gb_Ex_August 2022
4.4. Maintenance Operations
4.4.1. Summary maintenance operations
Generality
DANGER: The installation, commission and maintenance operations
must be performed by qualified personnel, in conjunction with this
documentation.
The qualified personnel must know the safety (C18510 authorization,
standard VDE 0105 or IEC 0364) and local regulations.
They must be authorized to install, commission and operate in
accordance with established practices and standards.
Please contact PARKER for technical assistance.
Special requirements for ATEX servomotors
Motor inspection (vibration changes,
temperature changes, tightening
torques on all scews)
Cable inspection, no degradation
(colour, flexibility, cracks…)
Danger: before any intervention the motor must be disconnected from
te power supply.
Due to the permanent magnets, a voltage is generated at the terminals
when the motor shaft is turned
If a screw assembly of the enclosure need to be replaced, the new
screw will must be quality 8.8 or higher for EX3-EX4-EX6 or quality
12.9 or higher for EX8. For the EX8 in UL version the screw must be
quality 14.9 or higher.
If the motor is used in dust explosive atmospheres, do not forget to do
a regular cleaning in order to avoid the deposits of dusts.
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