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Annex 6 Impeller Version 2 with Taper lock:
Typically Version 2A = TGT THGT
Typically Version 2B = TGT THGT
Removal: Refer Figure 2.
6.1
Check to ensure that axial movement of collar, necessary for release of connection, is not restricted. Likewise, ensure that "push-
off" threads are in good condition.
6.2
Loosen all locking screws by approximately four (4) complete turns and transfer screws to all "push off" threads located in flange
of collar, item 1.
6.3
Release connection by evenly tightening all "push-off" screws, not exceeding quarter (
sequence. Remove impeller from shaft and retain all parts safely.
Installation: Refer Figure 1.
6.4
Make sure that locking screw, taper, motor shaft and bore contact areas are clean and lightly oiled with a light machine oil and
that collar slits are aligned.
6.5
Loosen all locking screws by minimum of four (4) turns and transfer at least three (3) screws into "push-off" threads in order to
keep Parts 1 and 2 separated during assembly (see Figure 2)
6.6
After inserting Keyless Bushing into hub bore, note location of slit and keyway, relocate locking screws used for separating Parts 1
and 2.
6.7
Hand tighten locking screws and confirm that collar item 1 is parallel and in full contact with face of impeller hub.
6.8
Use Torque wrench and tighten locking screws in clockwise sequence using quarter (
Torque is achieved.
Taper lock A screw tightening Torque Nm
Taper Lock A
Typical
Allen / Hex Length
Metric shaft
IEC
mm
motor
2012 - 19
80
2012 - 24
90
2012 - 28
100 -112
2012 - 38
132
2012 - 42
160
2012 - 48
180
Taper Lock B screw tightening Torque Nm
Taper Lock B
Typical Allen / Hex Metric
Metric shaft
IEC
mm
motor
B 106 42 DM
160
B 106 48 DM
180
B 106 55 DM
200
B 106 60 DM
225
B 106 65 DM
250
B 106 75 DM
280
B 106 80 DM
315
710 – 1250
1250 - 1600
Torque
key
Screw
mm
mm
Nm
5
22
30
5
22
30
5
22
30
5
22
30
5
22
30
5
22
30
Torque
key
Screw
mm
Nm
6
M8 x 25
43
6
M8 x 25
43
6
M8 x 25
43
6
M8 x 25
43
6
M8 x 25
43
8
M10 x 30
85
8
M10 x 30
85
39
) turns in a diametrically opposite
1/4
) turns only. Continue until specified
1/4
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