Multitec

Caution When tightening the shaft nuts, please observe the following:

The shaft nuts must be tightened to the torques indicated in the table ”Tightening torques for shaft nuts”.

Tightening the shaft nuts on Multitec pumps

Shaft nuts without lockwasher

Caution

Not applicable to drive end on MTC 32/50/65 with self-locking shaft nut

 

 

 

 

 

 

 

 

 

 

 

 

 

Tightening torques for shaft nuts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drive end

 

 

Non-drive end

 

 

 

 

 

 

 

 

 

Pump size

 

A, B, C, D

E,F,V

 

A,B,E,F,V

C,D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nut

Nm

Nut

 

Nm

Nut

Nm

Nut

 

Nm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80 1)

 

 

80 1)

 

 

 

 

80 1)

MTC 32

 

M 25x1,5

40 (***)

M 25x1,5

 

40 (***)

M 25x1,5

40

M 25x1,5

 

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100 (*)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80 1)

 

 

80 1)

 

 

 

 

80 1)

MTC 50

 

M 30x1,5

40 (***)

M 25x1,5

 

40 (***)

M 30x1,5

40

M 30x1,5

 

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120 (*)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100 1)

 

 

80 1)

 

 

 

 

100

MTC 65

 

M 35x1,5

50 (***)

M 30x1,5

 

40 (***)

M 35x1,5

50

M 35x1,5

 

50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

150 (*)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

150 1)

 

 

150 1)

 

 

 

 

150 1)

 

 

M 42x1,5

 

M 42x1,5

 

 

 

 

 

 

 

MTC 100

50

 

50

M 42x1,5

50

M 42x1,5

 

50 (***)

 

(2x)

(2x)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

150 (*)

 

 

150 (*)

 

150(*)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200 1)

 

 

200 1)

 

 

 

 

200 1)

 

 

M 52x1,5

 

M 52x1,5

 

 

 

 

 

 

 

MTC 125

60

 

60

M 50x1,5

60

M 52x1,5

 

60 (***)

 

(2x)

(2x)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200 (*)

 

 

200 (*)

 

200 (*)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

250 1)

 

 

250 1)

 

 

 

 

250 1)

 

 

M 62x1,5

 

M 62x1,5

 

 

 

 

M 62x1,5

 

 

MTC 150

 

80

 

80

M 60x1,5

80

 

80

 

(2x)

(2x)

 

(2x)

 

 

 

 

 

 

 

 

 

 

 

 

 

250 (*)

 

 

250 (*)

 

250 (*)

 

 

250 (*)

 

 

 

 

 

 

 

 

 

 

 

 

1)loosen after first tightening

(*)block first nut when tightening

(**)self-locking nut

(***) bend over lockwasher

Tightening the shaft nuts on Multitec pumps

Nut with lockwasher - (drive end and non-drive end on versions C and D)

M1

M2

1.) Tighten nut to torque M1, then loosen again

2.) Tighten to torque M2 and bend over lockwasher

Nut with locknut - drive end (and non-drive end on versions C and D)

M1

M2

M3

1.) Tighten first nut to torque M1, then loosen again

2.) Tighten first nut to torque M2

3.) Tighten second nut to torque M3, at the same time blocking first nut

Nut with locknut - non-drive end (except versions C and D)

M1

M2

1.) Tighten first nut to torque M1

2.) Tighten second nut to torque M2, at the same time blocking first nut

Self-locking nut - old version MTC E/F/V 32/50/65 (drive end)

No torques given

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Multitech 1777.8/7-10 G3 operating instructions Tightening the shaft nuts on Multitec pumps
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