Assignment Of Tightening Torques; Start­up; Procedure Before Start­up; Fluid Filling - Siemens Flender FLUDEX 4600 Series Operating Instructions Manual

6.6

Assignment of tightening torques

Table 6: Assignment of tightening torques (for part number refer to section 11)
FLUDEX N‐EUPEX
Size Size
222 110
297 125
342 140
395 225
450 250
516 315
590 315
Tightening torques apply to bolts with untreated surfaces which are not or only lightly oiled
(coefficient of friction μ = 0.14). The use of lubricant paint or the like, which affects the
coefficient of friction "μ", is not permitted.
The tightening torques of the set screws are specified in item 6.1.4.
7. Start­up
Observe the instructions in section 3, "Safety instructions"!
7.1 Procedure before start­up
Before starting up check the flexible elements for correct seating, i.e. the flexible elements must sit flush
with the end face of the hub, and the set screws for tightness, check and, if necessary, adjust the alignment
and the gap dimension "S" and check all screw connections for the specified tightening torques
(see section 1 and section 6).
7.2

Fluid filling

Only specifically permitted operating fluids may be used for operation below ground.
The behaviour and the efficiency of the FLUDEX coupling is decisively affected by the quantity of operating
fluid put in. As the filling increases, so does the transmitting capacity of the coupling, and the motor load
during starting and the maximum overload torque on the coupling rises. Operating slip decreases with the
identical load.
FLUDEX couplings must not be filled up to more than 80 to 85 % of the total volume
(limited by the overfill safety system). As a result of the higher temperature­dependent
volume expansion of the operating fluid compared with the aluminium housing higher
filling results in a sharp rise in pressure in the coupling, which can result in the
coupling being irreparably damaged before the fusing temperature of the fusible
safety plug (103) is reached.
The operating fluid must be put in at the filling plug (153). Only these filling holes are provided with a filling
channel, which offers protection against accidental overfilling. To better ventilate the inner chamber, the
screw plug (163) inserted in the outer flange, or, on the size 222, the second fusible safety plug (103),
should be unscrewed. It is set at an appropriate angle so that, in the event of imminent overfilling, the
excess can escape there.
FLUDEX 4600 en
Operating instructions 10/2017
Tightening torque T
13 22 / 23
T SW T SW T
A A
Nm mm Nm mm Nm mm Nm
14 6 25 6
17.5 6 25 6
29 8 49 8
86 10 86 10
145 14 210 14
200 14 210 14
200 14 210 14
and wrench width SW for screws
A
Part number
103 110 / 142 / 163
SW T SW
A A
mm
22 6 ‐ ‐
60 10 75 19 / 27 / 10
60 10 75 19 / 27 / 10
60 10 75 19 / 27 / 10
60 10 75 19 / 27 / 10
60 10 75 19 / 27 / 10 135
60 10 75 19 / 27 / 10 135
121 130 / 131 153
T SW T SW T
A A A
Nm mm Nm mm Nm mm
18.7 6 8 10 25
18.7 6 8 10 25
31 8 21 13 75
54 10 21 13 75
54 10 40 17 75
14 40 17 75
14 73 19 75
SW
7
7
10
10
10
10
10
21