OPERATION AND MAINTENANCE MANUAL
TR-IS SERIES
Centrifugal Pump
21
TR-IS
6b.
Turn the impeller by hand and check that it does not rub against the casing. The assembly
should turn easily without restriction. If there is any sound or sensation of rubbing, you need to
check the whole assembly by disassembling and starting again.
6c.
To complete the assembly, place the protective guard (
16
) that is fixed with a hexagonal
screw (
17
) into the adapter. It is highly recommended for safety reasons not to operate the
equipment if the guard is not placed on the adapter.
Figure U and V
.
Figure
U
Figure
V
Important Notes For Operation
Before starting the pump, check that the motor turns in a counterclockwise direction.
Keep the suction line flooded and the mechanical seal lubricated with the fluid which is going to
be pumped. Never operate the pump when dry or it may damage the seal.
Maintain enough NPSH available in the suction line to avoid pump cavitation.
Do not support the weight of the pipe on the pump casing. The pipe must be adequately supported
to avoid this.
A
SS
E
M
B
L
Y
16
17
