Motor; Tightening Torques; Tools Required - salmson NFCH Installation Et Mise En Service

Positioning the mechanical seal on the shaft :
Shaft dia.25
Shaft dia. 35
3. Place the gasket 40.00.
4. Assemble back pull out assembly into the casing.
9.3.3

MOTOR

In order to ensure an optimum lifetime of the integrated motor a
minimum maintenance is necessary : clean cooling fins regularly, check
coupling alignment (if any), check cable gland tightening, ...
Ball bearing lifetime depends on axial and radial forces applied on motor
shaft therefore on the pump design (close-coupled pump, pump sets
with elastic coupling, ...).
Motor can be fitted with lifetime lubricated ball bearings (identified ZZ
or 2Z) or greased. Greasing nipples are located at the ball bearings and
re-greasing quantities are indicated on motor nameplate.
See motor instructions manual to find data about maintenance work to
be performed.

9.4 TIGHTENING TORQUES

Tightening torques depend on the material used in the assembly and on
the type of lubricant that is used.
Refer to applicable regulation to know the tightening torques for
the fastening of cast iron or stainless steel made flanges. The
values given below should be only indicative. If real tightening torques
are required please ask our technical services.
Threads
M6
M8
M10
M12
M16
M20
M24
M30
M36
Stainless steel bolts : apply anti-fretting paste before assembly.
Tightening torque for back cover fastening nuts 92.00 :
Thread
M12
M16
.
Size a
175,5
237
Tightening torques
8,5 Nm
12 Nm
25 Nm
40 Nm
90 Nm
175 Nm
300 Nm
500 Nm
700 Nm
Tightening torque
65 Nm
130 Nm

9.5 TOOLS REQUIRED

A typical range of tools that are required for pump maintenance is
listed below. Those tools are standard one and should be available
in every industrial maintenance Dpt.
• Wrenches to suit up to M48 nuts,
• Socket spanner up to M 48,
• Allen keys up to 10 mm,
• Range of screwdrivers,
• Soft mallet.
If maintenance work must be performed in an ATEX classified area
then make sure that use of all necessary tools are authorized in the
area.
More specialized equipment :
• Bearing pullers,
• Bearing induction heater for ball bearing assembly,
• Coupling grip spanner.
Additional equipments used for coupling alignment :
• Calipers,
• Crowbar,
• Straightedge,
• Shims,
• Sledgehammer.
17
ENGLISH