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DESMI Pumping Technology A/S
9
Tagholm 1
9400 Nørresundby – Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail:
Before shipment the pump is to be fastened securely on pallets or the like.
The pump is to be lifted in the following way:
The lifting straps must not bear against sharp edges and corners.
5. DISMANTLING
5.1 ACCESS TO IMPELLER
Remove guards (28). Remove Allen screws (22), which hold the shaft seal cover and the
monobloc bracket to the pump casing. The pump casing can now be pulled away allowing
inspection of the impeller.
Only S32-25-110N and S50-32-135N:
Remove Allen screw (22) which holds the bearing housing and the monobloc bracket to the
pump casing and pull the bearing housing with impeller and guide vane piece out of the pump
casing.
Then remove Allen screw (29) (only S32-25-110N), and guide vane piece and guide ring can
be dismantled from the bearing housing.
5.2 DISMANTLING SHAFT SEAL
Pull the shaft seal cover free of the monobloc bracket, by which the coupling is pulled off the
motor shaft. Remove nut (6). Pull off the impeller and remove sunk key (9). Remove Allen
screws (16), which hold the bearing cover to the shaft seal cover, pull shaft seal cover and
bearing cover apart, by which shaft seal and water deflector are pulled off the shaft.
Only S32-25-110N and S50-32-135N:
Unscrew impeller. Dismantle the oil seal ring (31) by puncturing the front to permit the oil seal
ring to be pulled out with a hook. The oil seal ring cannot be used again. Dismantle the ring
lock (30), and the shaft with bearings can be pulled out of the bearing housing. At the same
time, the shaft seal and the water deflector are pulled off the shaft.