3
After the motor has been positioned vertically put the hydraulic part on it so that the
motor shaft ended with multispline is placed in the pump clutch. In case of problems
with composition during the placement, turn the motor shaft in order to adjust the
multispline to the motor clutch.
When the hydraulic part is properly placed on the motor, it should be fully based on
the upper bearing casing of the motor. Having prepared the unit in this manner, you
can start the assembly using nuts and pads.
The nuts must be tightened in a "criss-cross” pattern. The minimal moment for
tightening the nuts is 18 Nm.
Inaccurate tightening of the nuts may cause their release during operation
and „sinking” of the motor in the borehole.
After the hydraulic part has been mounted on the motor and the feed cable has been
placed on the pump, put and tighten the filter screen and then the cable protective
strip.
Lowering the pump in the borehole with a protective strip may
damage the cable insulation. This may damage the pump or cause
electric shock to the operator.
Since the motor needs cooling during operation, the diameter of the
borehole where the pump is working may not be greater than the value
given below in the table of diameters. The values are given in mm. These diameters
depend on the working capacity of a given pump and dimension of pump.
Working capacity
Type of pump
1
m
3
/h
=
1
7
l
/m
in
2
m
3
/h
=
3
3
l
/m
in
3
m
3
/h
=
5
0
l
/m
in
4
m
3
/h
=
6
7
l
/m
in
5
m
3
/h
=
8
3
l
/m
in
7
m
3
/h
=
1
1
7
l
/m
in
1
0
m
3
/h
=
1
6
7
l
/m
in
1
5
m
3
/h
=
2
5
0
l
/m
in
2
0
m
3
/h
=
3
3
3
l
/m
in
2
5
m
3
/h
=
4
1
6
l
/m
in
3ti
101mm
121 mm 138 mm
90QJD, 90MSC
109 mm 128 mm 144 mm
4SD, 4SDM,4SG
114 mm 132 mm 148 mm 162 mm 175 mm 199 mm 230 mm 274 mm 312 mm 345 mm
Using the pump in a well of a diameter greater than the
one given in the table might overheat and damage the
motor.
If the diameter of the well where the pump is to be
working is greater than the diameter given in the table, the pump
must be installed in a special coat which enforces proper cooling.
The concept of the coat has been shown in the figure.
