21
FLUDEX 4600 en
Operating instructions 10/2017
6.6
Assignment of tightening torques
Table 6:
Assignment of tightening torques (for part number refer to section 11)
FLUDEX
Size
N‐EUPEX
Size
Tightening torque T
A
and wrench width SW for screws
Part number
13
22 / 23
103
110 / 142 / 163
121
130 / 131
153
T
A
SW
T
A
SW T
A
SW T
A
SW
T
A
SW T
A
SW T
A
SW
Nm
mm
Nm
mm Nm mm Nm
mm
Nm
mm Nm mm Nm mm
222
110
14
6
25
6
22
6
‐
‐
18.7
6
8
10
25
7
297
125
17.5
6
25
6
60
10
75
19 / 27 / 10
18.7
6
8
10
25
7
342
140
29
8
49
8
60
10
75
19 / 27 / 10
31
8
21
13
75
10
395
225
86
10
86
10
60
10
75
19 / 27 / 10
54
10
21
13
75
10
450
250
145
14
210
14
60
10
75
19 / 27 / 10
54
10
40
17
75
10
516
315
200
14
210
14
60
10
75
19 / 27 / 10
135
14
40
17
75
10
590
315
200
14
210
14
60
10
75
19 / 27 / 10
135
14
73
19
75
10
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.
Summary of Contents for Flender FLUDEX 4600 FAD Series
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