Maintenance and service
Operating / Mounting instruction
44
192-550003N10 ETH ATEX December 2019
In this chapter you can read about:
Maintenance schedule ..................................................................................................... 44
Lubricating intervals and amount of lubricant for ATEX ETH- Electro Cylinder ................. 45
Toothed belt .................................................................................................................... 47
Belt / belt tensions ........................................................................................................... 50
Before maintenance and servicing, please read the chapter Safety instructions!
Before maintenance work, disconnect the drives concerned or the entire system from
the power supply and secure them against being switched on again with a padlock. If
the unit needs to be operable for specific repair works, you have to be especially
cautious. Please make sure that there are no persons in the hazardous area - if
needs be, secure this area by additional enclosures or barriers against access.
If set-up, repair or maintenance works require that safety installations be
dismounted, these must be reinstalled immediately after the respective works
have been completed. The unit must be shut down before any of the safety
installations are dismounted.
Depending on the operating conditions (rotation speed, load, etc.) increased
surface temperature in the area of the drive may occur. When touching it during
operation slight injuries from burning may occur. Don't touch the product during
operation. At maintenance, service and repair always take care that the product is
cooled off before starting work.
Maintenance measures ETH
The ballscrew drive must be relubricated within given intervals.
The lubrication intervals depend on the operating conditions (nominal size, pitch,
speed, acceleration, loads, etc.) and the ambient conditions (e.g. temperature).
Ambient influences such as high loads, impacts and vibrations shorten the
lubrication intervals.
In short-stroke applications, a lubrication run must be performed after max. 10 000
movement cycles.
In the event of small loads and if the application is impact and vibration free, the
lubrication intervals can be increased. Under normal operating conditions, the
given lubrication intervals apply. If the total travel per year is shorter than the given
intervals,
the cylinder must be relubricated at least once per year
.
3.1
Maintenance schedule
WHEN
WHAT
ACTION
After commissioning
Spindle
The cylinder is furnished completely lubricated.
If the cylinder was held on stock at your premises for more than 1
year, it must be relubricated before commissioning.
see lubricating intervals and amount of lubricant
After reaching the
lubrication interval or
at least once a year
Spindle
Relubricating the spindle and visual inspection for external damages
of the actuator.
See lubricating intervals and amount of lubricant
Annually
Electro Cylinder
Visual inspection for external damages of the actuator.
If externally caused damages are visible on the thrust rod or on the
profile, please contact Parker.
Annually
Fixings provided by
the customer
Check screw tightening torque.
see mounting tightening torques ETH (see page 25)
Annually, or every
6000 hours of
operation
Toothed belt
(with parallel
configuration)
In general, the high performance toothed belts used in the ETH are
maintenance free.
Visual inspection of the timing belt is however required. Please
check the toothed belt for the following aspects:
Wear at the teeth
Cracks in the tooth root surface
Fractures in the belt back
If you find signs of wear, the toothed belt must be exchanged (see
3. Maintenance and service
