Mechanical Installation; Removing And Fitting The Cable Guard; Fitting Of The Submersible Drop Cable And Motor Cable; Lifting The Product - Grundfos SP Series Installation And Operating Instructions Manual

8. Mechanical installation

.
WARNING
Sharp element
Death or serious personal injury
- When mounting the facilitating pipe, wear personal
protective equipment to avoid cutting on sharp
edges on the pump.
Be careful not to ben or damage long pump sets,
when moving them from horizontal to vertical
positions.

8.1 Removing and fitting the cable guard

The cable guard is screwed on to the pump, it must be removed
and fitted by means of screws. See appendix.
Make sure that the pump chambers are aligned when
the cable guard has been fitted.
8.2 Fitting of the submersible drop cable and motor
cable
Before connecting the submersible drop cable to the motor, make
sure that the cable socket is clean and dry.
To facilitate the connection of the cable, lubricate the rubber parts
of the cable plug with non-conducting silicone paste.
Tighten the screws holding the cable to the torques stated [Nm]:
MS402: 3.1 Nm
MS4000: 3.0 Nm
MS6000: 4.5 Nm
MMS6: 20 Nm
MMS8000: 18 Nm
MMS10000: 18 Nm
MMS12000: 15 Nm.
Connect the motor cable to the drop cable by use of original
Grundfos cable termination kits, such as shrink tube type KM or
cable termination kit type M0 to M4.
If necessary, shorten the motor cable to ensure that it is always
covered with pump medium prior to making the cable jointing as
described above.
Staybolt diameter
5/16 UNF
1/2 UNF
M8
M12
M16
M20
Fig. 19 Staybolt diameters and torques

8.3 Lifting the product

Grundfos recommends to fit a maximum 30 cm long pipe to the
pump to facilitate handling of the pump during installation.
Fig. 20 Lifting the pump set into vertical position
Lift the pump set by means of pipe clamps fitted to the riser pipe.
See fig. 21.
Torque
[Nm]
18
50
18
70
150
Fig. 21 Lifting the pump set into position
280
A
Max 0.3m
13