Tsurumi Pump LB-250, Руководство по эксплуатации

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Disassembly Procedure
Prior to Disassembly and Reassembly
WARNING
Before disassembling and reassembling the pump, be sure that the power
supply (i.e. circuit breaker) is disconnected, and remove the cabtyre cable
from the outlet or the terminal board. Do not connect or disconnect the
power plug with a wet hand, in order to prevent electrical shock. Do not
perform an activation test (to check the rotation of the impeller) during
disassembly and reassembly. Failure to observe this precaution could
lead to a serious accident, including injury.
This section explains the disassembly and reassembly processes that are involved up to
the replacement of the impeller itself. Operations involving the disassembly and reas-
sembly of the sealing portion (i.e. mechanical seal) and of the motor require a special-
ized facility including vacuum and electrical test equipment. For these operations, con-
tact the dealer where this equipment was purchased, or the Tsurumi sales office in your
area.
(1) Removing the strainer stand, and the pump casing
Remove the hex bolts from under the strainer stand; then, remove the strainer stand,
and the pump casing from the pump body.
(2) Removing the impeller
Using a box wrench, remove the impeller nut, spring washer, then, remove the impel-
ler, the shaft sleeve, and the v-ring from the shaft.
(3) Removing the rear liner
Remove the rear liner from the oil casing.
Disassembly Diagram
Example
Spring Washer
Hex. Cap Nut
Oil Casing
Packing
Oil Plug
V-Ring
Shaft Sleeve
Hex. Nut
Impeller
Wearing
Strainer Stand
Stud Bolt
Pump Casing
8 DISASSEMBLY AND REASSEMBLY PROCEDURE