HSD ES327, Assembly Instructions Manual

Page: 69 / 122

6 Operation and regulation
HSD S.p.A. © - 0106h03a.fm100713
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6 Operation and regulation
6.1 Environmental conditions
The manufacturer has tested and verified its products according to environmental conditions
standard (IEC 60034-1:2006-05).Contact the manufacturer for information on potential uses in
special environments
6.2 Running-in
Prior to being packed, the product is subjected to an automatic running-in cycle to ensure the
correct distribution of lubricant (long-life grease) along the ball races of the bearings and to run-in
the balls and races of the bearings themselves. Where present, the reduction gears and servo
motors are also run-in and dynamic tests of the internal pneumatic and hydraulic circuits are
carried out.
The running-in cycle also includes a detailed check of all the control and signaling devices through
the simulation of various machining cycles on the test-bench.
6.3 Warm-up
The manufacturer uses high-precision angular contact bearing pairs, pre-loaded and lubricated for
life with special high-speed grease.
When starting-up the electrospindle for the first time each day, allow it to run a short warm-up cycle
to allow the bearings to gradually reach a uniform operating temperature and obtain uniform
expansion of the races and correct pre-loading and rigidity.
The following cycle, with a tool holder inserted and without performing
machining operations, is recommend:

50% maximum rated speed for 2 minutes;

75% maximum rated speed for 2 minutes;

100% maximum rated speed for 1 minute.
Pre-heating cycle must also be performed each time the machine is not
working for a period of time sufficient to cool the electrospindle to room
temperature.
Only in the case of the first start-up after storage or machine downtime over
four months, anticipate the pre-heating cycle by a preliminary phase of 2
minutes at 5000rpm.