Tsurumi PU Submersible Vortex Sewage Pump - Manual (Page 20)

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Disassembly Procedure
Disassembly Diagram
PN Series
Note:
The description of the disassembly diagram above may differ slightly in shape and con-
struction depending on the model.
Reassembly Procedure
Observe the precautions given below and reassem-
ble the unit in the reverse order of disassembly.
(1) Thoroughly wash all parts before reassembly.
(2) Make sure that the packing is securely fitted.
(3) Pay attention to the proper installation direc-
tion of the following parts:
Spring Washer ⑥
[ Back-Pullout Construction ]
*Motor
Portion
* Pump Portion
Hex Bolt
O-Ring
Impeller
[Pump Disassembly Diagram]
O-Ring
Truss Screw
Pump Casing
Packing
Spring Washer
Hex Nut
Hex Bolt
Screwed Flange
Hex Bolt
Impeller
3
3
A
A
B
B
5
10
2
Strainer
1
4
5
6
7
8
9
10
11
Note:
Before disassembling, be sure to drain the oil from the pump.
(1) This pump has adopted a back-pullout construction. Therefore, by removing the four
cross-recessed hex bolts ⑩ (or hex nuts on the 1.5kW model), the pump can be inspect-
ed while the impeller ⑤ remains attached to the motor mainshaft.
(2) Remove the two cross-recessed hex bolts ⑦, and remove the screwed flange ⑧, packing ⑨,
and two hex nuts ⑪ , in that order.
(3) Remove the truss screw ④ , and remove the impeller ⑤ and the spring washer ⑥ , in that
order.
(4) Wash and inspect all parts to make sure that they are not worn or damaged.
Note:
If any part is worn or damaged, make sure to replace it with a new part. Replace the pack-
ing and the O-ring each time the pump is disassembled.
Truss Screw
Spring Washer
Impeller
Motor Shaft
4
5
6
[Assembly direction of spring washer]