Installation
EN
10 / 20
10/2019
Installation
Installation Requirements
Selecting the torque reaction bar
The reaction bar is used to absorb the reaction torque of the tool during the tightening phase. It ensures the tightening
is done at the preselected torque. The reaction bar is a steel bar that should be shaped depending on the application
and the chosen tightening socket. Its weight can be reduced by cutting off any unnecessary metal. The contact sur-
face with the reaction bar must be able to withstand the reaction torque of the tool. The reaction bar is made accord-
ing to the location of this contact surface and the tightening torque. Each individual reaction bar is adapted to one
single tool. The reaction bars are not interchangeable from one tool to another.
Select the reaction bar type according to the tables above in this manual making sure that the tightening torque pro-
grammed does not exceed the maximum torque accepted by the reaction arm.
Desoutter shall not be held liable if the tool is used with any reaction bar other than a Desoutter-branded one.
For other models, contact the reaction arm supplier.
Shaping the torque reaction bar
15°
15°
45°
40°
35°
30°
25°15°
L
C
B
E
E+15°
E-15°
K
K
A
TR
DV
Axe AC
Axe BE
α
F
37°
L
C
B
A
Axe AC
Axe BE
E
F
C
E
E+15°
E-15°
K
K
Axe BE
LCI
B
ZE
ZI
ZE
F
A
B
C
E
D
S
D
d/2
d/4
d
d/4
D/2
D/2
W
A
A-A
A
W
min
TR
S
DV
Selecting the contact area
To avoid output bearing and reaction bar overloads (TR), the contact point has to be within the shaded area (F) (see
Figure A). To determine the area (F), carry out a plan on a sheet of paper (see Figure B).
