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User Manual
ATEX H1 Bent Axis Variable Displacement Motors
Installation, operation and maintenance
Assembly of H1B motor to the system
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©
Danfoss | August 2021
When assembling the motor in the machine/system it is the builder's responsibility that the parts used
conform to the ATEX directive and that the components are assembled and running according to the
operational data/design found in product data sheets and instructions.
Only use the motor as required by the explosion protection shown on the name plate.
Always ensure that the following is maintained:
•
The supporting frame, chassis, or structure of equipment containing the motor shall be constructed
of electrically conducting material and shall be so arranged as to provide a leakage path to earth
(ground) for any static electricity which occurs on the motor.
•
It is compulsory to use oils whose inflammable degree is at least 50K above the maximum surface
temperature of the motor. Maximum surface temperature is 200° C for Group 11G.
•
Make sure that all type of accessory installed on the motor are ATEX specified and have been installed
in accordance with ATEX requirements.
•
There are no creeping metal elements external to the motor.
•
There are no plastic parts that might accumulate electrostatic; or they are shielded.
•
The maximum permissible oil and ambient temperature is monitored and not exceeded for the
category and temperature class of the associated zone.
Manufacture the assembly flange on the machine/system where the motor has to be installed: the
relevant surface has to be perfectly smooth, completely de-greased and non-deforming.
It is necessary to verify the perfect alignment between the motor output shaft and the counter part – the
fitment between motor shaft and application's driven shaft must be executed so that no radial or axial
pre-load is generated – these extra loads reduce the bearings expected lifetime.
BC382476021584en-000102
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