Elmo Rietschle R-VWP 500/1000/1500/2500 - Manual (Page 28)

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Maintenance and repair
s
6
n
1
n
2
n
5
n
4
n
3
s
4
s
2
s
3
7.2.4 Changing of the shaft sealing rings and the shaft wearing sleeve
Fig. 12 Changing of the shaft sealing rings and the
shaft wearing sleeve VWP 500 - 1500
Switch off the pumps and vent to atmospheric pres-
sure.
After unscrewing the allen screws (Fig. 10, 11/s
1
) pull
off the motor together with the motor side coupling
half (Fig. 10, 11/q) and suspend with the lifting de-
vice.
VWP 500 - 1500
After unscrewing the screws (Fig. 10/s
5
) remove the motor fl ange (Fig. 10/n). Unscrew countersunk screw
(Fig. 12/s
2
) and remove with disc (Fig. 12/s
3
). Pull off the coupling driven (Fig. 10/q
1
) with a suitable puller.
Remove key (Fig. 12/s
5
). Drain the oil in the chamber on the motor side by unscrewing the plug (K
1
). After
unscrewing the allen screws (Fig. 12/s
6
) lever out the intermediate fl ange (Fig. 12/n
1
) in the area of the fi xing
pin. The splash plate (Fig. 12/n
2
) must have a vertical position with their recess, otherwise it is impossible
to remove the intermediate fl ange. Remove wearing sleeve (Fig. 12/n
3
) of the piston and change it. Push
off sealing rings (Fig. 12/n
4
) resp. (Fig. 12/n
5
) with a drift from the motor side out of the intermediate fl ange
(Fig. 12/n
1
) and change them.
Re-assemble in reverse order.
NOTICE
For fi lling the sealing oil chamber with oil remove
the ventilation screw (Fig. 2/G
1
).
VWP 500 - 1500