Installation and Operational Instructions for
EAS
®
-HT clutch Type 405_._ _400
Sizes 7
– 10
(B.4050.1.EN)
16/04/2019 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 5 of 9
Overload Element (2) Pre-tensioning:
In order to guarantee problem-free function of
the EAS
®
-HT clutch, a defined bolt pre-tension
(acc. Table 3) is necessary.
This bolt pre-tensioning has already been
adjusted manufacturer-side.
Alignment is only necessary in case of
replacement of the elements assembly (2) and
the thrust pieces (4).
The overload element (2) and the thrust piece (4) must
align exactly with each other (Fig. 10 / page 7).
The distance dimension “a
1
” acc. Table 3 must be given
(Fig. 5 / air gap between the hub (1) and the pressure
flange (3), on engaged elements).
Determine the pre-tensioning using difference dimension
measurement “v” (see Figs. 4 and 5). Dimension “v” is the
distance from the bolt end (7) to the facing side of the
overload element (2), see Fig. 3.
Pre-tension the element by placing shim rings (P) under
the thrust piece (4).
For de-installation of the thrust piece (4), please see
Fig. 6.
Procedural Method:
1.
De-install the overload element (2).
2.
Move the bolts (Item 7) up against the control segments
(G) by applying axial force onto the ball (7a), e.g. by
tapping them with a plastic hammer.
3.
Using the inspection dimension “p” (see Table 3 and
Fig. 4), the axial contact of the bolt (7) can be checked.
4.
Measure and note the bolt excess length “v” (Fig. 4) on the
de-installed overload element (2).
5.
Mount the thrust piece (4) and the overload element (2)
into the adaptor bores using a tightening torque of 9 Nm.
6.
Measure the bolt excess length “v” (Fig. 5) again and
compare it to the noted value. The difference dimension
equals the bolt pre-tension.
7.
In order to correct the pre-tension, both the overload
element (2) and the thrust piece (4) must be de-installed
again.
8.
Now the required pre-tension acc. Table 3 can be set by
adding or removing shim rings (P) under the thrust piece
(4).
9.
After correct pre-tension adjustment, apply a screw-
securing product, e.g. Loctite 243, to the cap screws
(Items Z and 8).
Fig. 4
Fig. 5
Fig. 6
Dial gauge
Extraction tool
Extraction thread
