Parker EME
Toothed belt
192-550003N10 ETH ATEX December 2019
49
3.3.4.
Exchanging the toothed belt (ETH100&125)
3
11
5
20
4
1
18
6; 9
2
7
8
16
17
21
19
12; 10; 13; 14; 15
Figure 39: Exchange toothed belt ETH100&125
Dismantle the motor (see page 32)
The internal ballscrew is not self-locking!
Always take care, especially in vertical position of the ETH cylinder that the piston
rod must be safeguarded!
Toothed belt detensioning
Unscrew the 4 screws (Figure 39 Pos. 7). Set aside the screws and motor
flange (Figure 39 pos. 17).
ATTENTION!
Secure motor flange against dropping!
Loosen central toothed belt tensioning screw (please refer to Figure 39 Pos.12)
. The drive unit must lower slightly when the tensioning screw is loosened.
Secure upper bearing unit (Figure 39 Pos. 18) against dropping. Danger of
crushing: Do not place your hands or fingers between upper bearing unit and
parallel housing.
Unscrew and set aside the tensionining screw (Figure 39 pos. 12).
Loosen 5 screws (please refer to Figure 39 Pos.1) and remove lid (please refer to
Figure 39 Pos.3). If the lid can not be removed easily (please refer to Figure
39 Pos.3), try to remove it with a slightly pivoting movement.
Remove middle bar (please refer to Figure 39 Pos.5) with seal.
Remove upper bearing unit with toothed belt (please refer to Figure 39 Pos.18).
Unscrew 4 screws (Figure 39 39 pos. 8) from the bearing unit and set aside.
Remove the bearing flange (Figure 39 39 pos. 16) from the bearing unit (see
illustration 39 pos. 18) by means of the existing impression threads and two
screws M6x30 (not included in the scope of delivery). Screw in the screws to the
stop and then screw in both screws alternately by 1/2 turn each.
Remove hollow shaft with the two bearings (please refer to Figure 39 Pos.19)
from the bearing unit(please refer to Figure 39 Pos.18).
Take out used toothed belt.
Clean the inside of the parallel housing (see illustration 39 pos.2) and the
previously removed components.
Mounting in reverse order:
Insert new toothed belt
Please make sure that the toothed belt is correctly geared in the pulley toothing.
