Installation and Operational Instructions for
EAS
®
-Compact
®
overload clutch,
Type 49_._ _4._ Sizes 4 and 5
(B.4.14.6.GB)
25/01/2013 GC/NH/GH/SU
Chr. Mayr GmbH + Co. KG
Tel.: +49 8341 804-0
Eichenstraße 1
Fax: +49 8341 804-421
D-87665 Mauerstetten
www.mayr.com
Page
16
of
21
Germany
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Maintenance and Maintenance Intervals
Maintenance work, which should be carried out after approx.
2000 operating hours, after 1000 disengagements or at the latest
after 1 year, includes:
Visual inspection
Functional inspection
Inspection of the shaft-hub connection
Inspection of the screw tightening torques
The specified tightening torques (see Technical Data,
pages 4 and 5) must be maintained.
Set torque inspection
Clutch release inspection
Bearing or bearing pre-tension inspection
Re-greasing of the transmission geometries, balls,
recesses and sealing elements
Clutch re-greasing must only be carried out by specially trained
personnel.
For greasing, please use NLGI Class 2 grease with a basic oil
viscosity of 220 mm
2
/s at 40 °C, e.g. Mobilgrease HP222.
When re-installing the clutch, please secure all screws with
Loctite 243 (medium hard).
It may be necessary to carry out inspections at shorter intervals
should the device be subjected to very dirty, dusty or extreme
ambient conditions.
We recommend that maintenance work is carried out at the
site of manufacture.
Disposal
Electronic Components
(Limit switch):
Products which have not been disassembled can be disposed of
under Code No. 160214 (mixed materials) or components under
Code No. 160216, or can be disposed of by a certified disposal
firm.
All steel components:
Steel scrap
(Code No. 160117)
All aluminium components:
Non-ferrous metals (Code No. 160118)
Seals, O-rings, V-seals, elastomers:
Plastic
(Code No. 160119)
Malfunctions / Breakdowns Type 490._ _ 4.2
Malfunction
Possible Causes
Solutions
Premature clutch
release
Incorrect torque adjustment
1)
Set the system out of operation
2)
Check the torque adjustment
3)
Secure the adjusting nut
4)
If the cause of malfunction cannot be found, the clutch must
be inspected at the place of manufacture
Adjustment nut has changed position
Worn clutch
Clutch does not
release on overload
Incorrect torque adjustment
1)
Set the system out of operation
2)
Check whether foreign bodies influence the disengagement
mechanism function
3)
Check the torque adjustment
4)
Secure the adjusting nut
5)
If the cause of malfunction cannot be found, the clutch must
be inspected at the place of manufacture
Adjustment nut has changed position
Disengagement mechanism blocked by a
foreign body
Worn clutch
Running noises on
overload occurrence
as clutch slows down
Bearing on output flange is worn or has
been previously damaged
1)
Set the system out of operation
2)
Inspect the clutch at the place of manufacture
Worn disengagement mechanism
Running noises in
normal operation
Insufficient clutch securement
1)
Set the system out of operation
2)
Check the clutch securement
3)
Check the screw tightening torques
4)
Check the torque adjustment and that the adjusting nut sits
securely
Loosened screws
Loosened adjusting nut
