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 9 of 15
Clutch De-installation
Replace the flexible intermediate ring (23) according to the
procedure described in section 'Replacing the Flexible
Intermediate Ring'.
In order to check the running characteristics of the motor in dry
running without moving the motor, please observe section
'Checking the Motor Running Characteristics'.
Replacing the Flexible Intermediate Ring
1) Loosen the cap screws (21) in the claw ring (24).
2) Remove the cap screws and locking washers (21/22) from
the clutch.
3) Pull the claw ring (24) back up to the flange hub (26) end on
the centring ring (27).
4) 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)
5) The flexible intermediate ring (23) on the coupling can be
removed by separating it using a cutting tool (see Tschan
Operational Instructions BAWN 060-EX).
6) The new flexible intermediate ring (23) can also only be
inserted in separated state.
7) The clutch is ready for operation again after
steps 9) to 12) on page 8 have been carried out.
If the clutch part between the input and the
output shafts is lifted out radially, the
intermediate ring can be replaced axially.
(For radial de-installation, steps 1) to 9) in
section 'Checking the Motor Running
Characteristics' must be carried out and for
radial re-installation steps 7) to 12) on page 8
must be carried out).
Checking the Motor Running Characteristics
CAUTION
Not permitted in ATEX version!
1)
Loosen the cap screws (21) in the claw ring (24).
2)
Remove the cap screws and locking washers (21/22) from
the clutch.
3)
Pull the claw ring (24) back up to the flange hub (26) end on
the centring ring (27).
4)
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)
5)
Screw the eyebolt (19) into the pressure flange (5).
6)
Support the clutch using the eyebolt (19).
7)
Loosen the hexagon head screws (4) in the element flange
(3).
8)
Remove the hexagon head screws (4) from the clutch.
9)
Lift the remaining clutch part (element flange (3) + pressure
flange (5) + cam ring (20)) radially between the input and
the output shafts.
CAUTION
When working on the clutch, the motor must be
secured against switch-on.
Suitable protective devices and protective
measures spread over the rotating parts must
be used to guarantee the safety of the
operating personnel.
10) The motor can be checked via temporary acceleration.
11) The clutch is ready for operation again after
steps 7) to 12) on page 8 have been carried out.
