Installation and Operational Instructions for
EAS
®
-Compact
®
overload clutch Type 49_._ _4._
Sizes 01 to 3
(B.4.14.1.EN)
13/11/2017 GC/NU/GH/SU
Chr. Mayr GmbH + Co. KG
Eichenstraße 1, D-87665 Mauerstetten, Germany
Tel.: +49 8341 804-0, Fax: +49 8341 804-421
Page 15 of 19
Limit Switch (Item 14; Figs. 1 and 13)
In order to limit run-out times after overload has taken place, a
limit switch must be mounted onto the overload clutch.
The contactless limit switch is to be mounted onto the switching
edge of the clutch (Fig. 13) so that no signal changes are caused
during normal operation on the limit switch by the usual clutch
run-out errors.
In case of overload, the thrust washer (3) carries out a stroke
(see Fig. 1 and Table 2) in the direction of the adjusting nut (4),
which is used to signal change on the limit switch (14).
The signal change should take place at the latest after an axial
thrust washer (3) stroke of 0.5 mm. At the same time, please
maintain a radial minimum distance of 0.5 mm in order to prevent
rubbing of the contactless limit switch.
Limit Switch Installation
Adjust the switch distance for the contactless limit switch
acc. Fig. 13. The distance of the thrust washer (3) to the
switching point can be adjusted using a hexagon head
screw, wrench opening 7.
Please ensure that the limit switch is functioning correctly.
Contactless limit switch (mounting example)
Fig. 13
Maintenance and Maintenance Intervals
Maintenance work, which should be carried out after 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 table 5) must be
maintained.
Inspection of the set torque
Clutch release inspection
Inspection of the bearing or bearing pre-tension
We recommend that this maintenance work is carried out at
the site of manufacture.
Re-greasing of the transmission geometries, balls, recesses
and sealing elements.
Clutch re-greasing must only be carried out at the place of
manufacture or by specially trained personnel.
For greasing, please use NLGI Class 1.5 grease with a basic oil
viscosity of 460 mm
2
/s at 40 °C, e.g. Mobilith SHC460.
When re-installing the clutch, please secure all screws with
Loctite 243 (medium hard).
If large amounts of dirt or dust are present or in extreme ambient
conditions, it may well be necessary to carry out inspections at
shorter intervals.
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.
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)
