Installation and Operational Instructions for
EAS
®
-dutytorque Type 404_._ _400
Sizes 2
– 9
(B.4.3.1.ATEX.EN)
06/10/2016 TK/GH/SU
Chr. Mayr GmbH + Co. KG
Eichenstraße 1, D-87665 Mauerstetten, Germany
Tel.: +49 8341 804-0, Fax: +49 8341 804-421
Page 8 of 15
Clutch Installation
The clutch is manufacturer-assembled ready for installation and
set to the limit torque stipulated in the order.
The switching disk (Item 14, only for Type 404_._1400) is
included loose in delivery.
It is possible to mount the EAS
®
-dutytorque overload clutch
radially without having to move the motor (input-side) (see
section 'Radial Installation').
However, if it is possible to push the input and/or output unit
together, the clutch can be mounted "axially" (see section 'Axial
Installation').
For speed monitoring, there are two control flags (Item 15, Fig.
2). They can either be screwed into the pressure flange (5)
(output-side) or into the element flange (3) using cap screws
(16).
Axial Installation
CAUTION
The clutch must not be mounted so that the
shaft facing side contacts the bearing cover, as
the bearing cover moves at relative speed
towards the shaft in case of overload.
A safe distance of 2 mm (Fig. 5) must be
maintained.
1) Mount the EAS
®
part of the clutch incl. the cam ring (20) onto
the input shaft using a suitable device, and secure it axially
using the set screw (2).
2) Mount the flexible part (flange hub 26 incl. claw ring 24) onto
the output shaft using a suitable device, and secure it axially
using the set screw (28).
3) The set screws (25) in the claw ring (24) must be secured
against being catapulted out or they must be removed from
the clutch.
4) Push the input and output shafts together axially and
establish the positive locking of the elastomer compensating
coupling.
While doing this, please observe the distance dimension “S”
and the permitted misalignment values (see Fig. 1, page 3
and Table 3, page 6).
5) When in position, screw the input and output units together.
Fig. 5
CAUTION
Press cover (Fig. 6) is not permitted in ATEX
version!
Danger of ignition!
Fig. 6
Radial Installation
1) Loosen the hexagon head screws (4) in the element flange
(3).
2) Mount the EAS
®
-hub (1) onto the input shaft using a suitable
device and secure it axially using a set screw (2).
3) Mount the flange hub (26) incl. the claw ring (24) onto the
output shaft using a suitable device, and secure it axially
using the set screw (28).
4) Loosen the cap screws (21) in the claw ring (24).
5) Pull the claw ring (24) on the centring ring (27) back.
6) Tighten the set screws (25).
Please observe the tightening torques:
- for set screw M10: 28 Nm (Sizes 2 to 6 and 9)
- for set screw M12: 48 Nm (Sizes 7 and 8)
7) Add the remaining clutch part (element flange (3) + pressure
flange (5) + cam ring (20)) radially between the input and the
output shafts.
8) Tighten the hexagon head screws (4) in the element flange
(3).
Please observe the tightening torque acc. Table 4!
9) Loosen the set screws (25) in the claw ring (24). After
loosening the set screws (25), they must be secured against
being catapulted out or they must be removed from the
clutch.
10) Pull the claw ring (24) over the flange hub (26) in the
direction of the cam ring (20).
11) Tighten the cap screws (21) in the claw ring (24).
Please observe the tightening torque acc. Table 4!
12) Establish the positive locking of the elastomer compensating
coupling.
While doing this, please observe the distance dimension “S”
and the permitted misalignment values
(see Fig. 1, page 3 and Table 3, page 6).
Please observe the screw tightening torques
acc. Table 4!
CAUTION
Before initial operation of the clutch, please
remove the eyebolt (19) (installation aid).
Bearing cover
Drive shaft
