Installation and Operating Instructions for
EAS
®
-compact
®
clutch Type 493._ 4 _ .0 Sizes 01 – 1
(B.4.16.GB)
10/03/2005 K/TK/Kr
Chr. Mayr GmbH + Co. KG
Tel.: 08341 / 804-0
Eichenstraße 1
Fax: 08341 / 804-421
87665 Mauerstetten
http://www.mayr.de
Page 4 of 5
Germany
eMail:
Torque adjustment (at the factory):
Torque is adjustable by turning the clamping nut (9). The cup
springs (8) operate in the negative area of their characteristic
(Fig. 5), i. e. tightening of the clamping nut (9) effects a decrease
of the spring pressure, or a releasing of the clamping nut (9) an
increase of the spring force.
An inspection „spring application in the setting range” (Fig. 5) can
be made via the dimension„a“ (distance from hub front face (1)
until clamping nut front face (9) (Fig. 4).
Fig. 4
Adjusting the torque (at the factory)
(Figs. 1 and 4):
Abolish locking piston:
Unscrew cap screw (11) out of the locking ring (4) until it is
flush with the clamping nut (9) at the front face.
Abolish clamping safety device:
Release cap screw (10) out of the clamping nut (9) until it can
be turned.
Adjusting the torque:
Please observe!!
To avoid any unacceptable distortion
(twisting between steel bellows and
EAS
®
-clutch) and, therefore, a damage of the
steel bellows (15), the EAS
®
-clutch must be
secured against twisting on the shaft in case of
a torque adjustment.
Turn clamping nut (9) to dimension “a” (the dimension “a”
can be taken from the attached “adjusting diagram”) with the
use of a hook wrench – clockwise or anticlockwise – until the
required torque is set.
Tighten cap screw (10) again.
(Observe tightening torque acc. to Table 1).
Remove cap screw (11) from the clamping nut (9). Put
Loctite 243 glue on it and screw it into the clamping nut (9) or
locking ring (4). The bores in the locking ring (4) must remain
in the same position as the cap screws (11).
If necessary a slight correction must be made.
Please observe
The clutch does not function any more, if the
clamping nut (9) is adjusted or the cup
springs (8) are distorted external of the
service range of the cup spring
characteristic (see Fig. 5).
After dismantling the clutch (e. g. due to change of the cup spring
or cup spring layer) the clutch must be re-adjusted and calibrated
via the dimension “a” (see “adjusting diagram”).
Fig. 5
a
move till
operating range
fo
rc
e
F
Graph on
spring characteristic
operating
range
spring path S