Siemens Flender FLUDEX 4600 FAD Series, Operating Instructions Manual

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FLUDEX 4600 en
Operating instructions 10/2017
10.5.2 Disassembling the sizes 395 to 590
After moving the motor away the retaining screw (141) and locking plate (140) are first removed. When
pulling off the FLUDEX coupling, care must be taken that pulling­off forces are conducted only through the
steel hollow shaft (106).
The coupling is normally pulled off with the aid of a threaded spindle, as shown in figure 14 a. The spindle
is screwed into the forcing­off thread (dimension G) of the sleeve (143) and turned forward as far as the
shaft stub end face and into the protective countersink in the centring thread (Figure 14 b). To prevent the
spindle seizing, the pressure surface and the thread must be treated with a lubricant (e.g. Molykote).
Fig. 14 a
10
L
G
Fig. 14: Disassembling the sizes 395 to 590 -a
Table 12: Dimensions of the threaded spindle and external cylinder threads, sizes 395 to 590
Size 395 450 516 590
Spindle thread G G 1 G 1 G 1 1/2 G 1 1/2
External cylinder thread K M68 x 2 M68 x 2 M100 x 2 M100 x 2
Spindle length L
[mm]
FAO, FAK, FAKB, FAD, FADB,
FAE, FAM, FADS
280 410 410 410
FAR 420 590 590 720
To prevent flexing and canting, the spindle
should be supported as shown.
The coupling is pulled off the shaft stub by
turning the spindle further into the forcing­off
thread and bracing the nut. The shaft stub
must be fastened to prevent it from rotating.
Depending on the size of the coupling, it is
recommended that a hydraulic spindle or
a hydraulic cylinder be used, as described in
the following.
After demounting the threaded bush (143)
a hydraulic cylinder with a matching external
cylinder thread "K" (see table 12) can be
screwed into the free mounting thread of the
hollow shaft (106) (figure 14 c).
The coupling can then be pulled off the shaft
stub by operating the hydraulic cylinder.
Fig. 14 b
143
Fig. 14 c
K