TOYO PUMPS EUROPE
Edition 03.11.2009
- 7 -
DISASSEMBLING PROCEDURES
Choose a dry and clean place to dismantle and reassemble your pump and install a base
on which you can put the pump. It is also wise to prepare a few small boxes in which you
can put the small parts dismantled from the pump. Prepare also some rags, oil and tools.
The numbers mentioned between parenthesises in the description correspond to the parts
numbers in the spare parts list.
1. Disassembling of the electric cable
a) Unscrew the cap nuts (1C) en remove the lead cover (8).
b) Disconnect the electric cable (7A) of the terminal board (99A) and remove the packing
(2).
c) In case you want to dismantle the motor case (28), you need, at this stage, also to
disconnect from the terminal board (99A) the wires coming out from the electric motor.
d) If you wish to replace the electric cable (7A), unscrew the cap nuts (106C) and release
the packing gland (3) with the cable protection tube (6), the packing set ring (5) and the
packings (4).
2. Disassembling of the pump section
a) Place the pump horizontally and fix it in such way that it can not move during the
disassembling procedure.
b) The cutter fan (81) is screwed (normal right thread) on the shaft (29). To dismantle the
cutter fan, hit it with a mallet or hammer, by interposing a bronze or aluminium jig, on
one of the corners of the cutter fan. Unscrew it in counterclockwise direction, the pump
seen from beneath (aspiration side).
c) Unscrew the set bolts (79A) and remove the strainer (80).
d) Unscrew the cap nuts (69C) and remove the suction cover (74) together with the
impeller disc (73) with the adjust bolts (69D). Remove the packing (77) and clean
carefully its location in the vortex casing.
e) Separate the suction cover (74) from the impeller disc (73) by unscrewing the cap nuts
(76C) using the adjust bolts (85).
f) Unscrew the impeller nuts (83). Remove the impeller collar (82), the impeller (72).
g) Unscrew the cap nuts (69C) and remove the vortex casing (56). Take care not to
damage the threat of the shaft (29). Remove the packing (68) and the key (55).
h) Unscrew the cap nuts (67C) and remove the delivery cover (71). Take care not to
damage the threat of the stud bolts (67A).
