29
When the switches have to be operated from the
left side, an operating shaft must be connected,
see Fig. 36. The mechanism clutch is brought
together with the clutch of the hollow main shaft
and the mechanism is fixed to the frame. Tighten
mounting screws with 15 [Nm] torque.
Insert the shaft extension from the left side of
the apparatus through the hollow shaft into the
mechanism clutch. Secure the shaft extension as
shown in figure below. Tighten the nuts with 9
[Nm] +/-10% torque.
1. Plain washer M8 DIN126 2 pcs.
2. Shaft secure (1YMX023808P0001) 1 pcs.
3. Wave washer DIN137A 2 psc.
4. Nut M8 DIN934 2 psc.
Check if the shaft extension works properly with
a few operations.
12.2 Test operation of A-mechanism
Current knives rotate with great speed and force.
Always keep a safe distance from moving parts of
the switch. Be careful especially with type A
(double spring) mechanism. This kind of drive
stores great energy and can release it by small
rotation of shaft.
After having mounted the mechanism to the
switch frame, check that the latch H is in correct
position by pulling it back to the outermost
position, see Fig.37.
For test operation see item “Test operations”.
1 / 1
1:4
A3
Sheet No.
Format
Language
Scale
Subtitle
Type
Derived from
Name
Date
Location
Revision
Drawn
Checked
Approved
EC No.
EN
Drawing status
Title
Drawing No.
Responsible
ABB Switzerland Ltd
Weight
Material
f
m
c
v
H
L
K
PROPRIETARY AND SECRET INFORMATION The information contained in this document has to be kept stric
tly confidential.
Any unauthorized use, reproduction, distribution or disclosure
to third parties
is strictly forbidden. ABB reserves all rights regarding Intell
ectual Property Rights.
Thread Quality Tolerance
"6g-6H" ISO 965
ISO 2768 T.1 Lengths and Angle
ISO 2768 T.2 Geometrical Tolerances
Surface
Surface code
Coord. punching N.C.Mach.
and unfold JS11
Standard Tolerances for Machining and Forming
© Copyright
ABB. All rights reserved.
2016
D
C
8
A
B
E
8
7
6
5
4
3
2
1
A
B
C
D
E
7
6
5
4
3
2
1
Group Technology Management
—
39 Shaft extension for the left-hand side operation
—
40 Shaft extension.
_
Note:
Contact knives in open position
4
3
2
1
