Chapter 5, Operating Instructions: Mounting the SDB 103
E.H. Wachs
Part No. 16-MAN-01, Rev. 4-1109
35
Figure 5-16. Install the mandrel with the adjustable
leg positioned at the short radius bend of the pipe.
If the end of the pipe is not
square, you will have to
establish a reference point for
squaring.
2.
Using the squaring plate as described in the previous
section, snug the drawbar nut to hold the mandrel in
place. Remove the squaring plate.
3.
Measure the distance over the adjustable leg from the
pipe I.D. to the mandrel shaft. Write this number down
as measurement “A”.
4.
At the position 180° across from the adjustable leg,
measure the distance from the pipe I.D. to the mandrel
shaft. Write this number down as measurement “B”.
•
If the two measurements are close enough for the toler-
ance of your application, you do not need to adjust the
centering.
•
If you need to re-center the mandrel, you will have to
remove the it and adjust the screw in the adjustable leg.
•
Subtract measurement “A” from measurement “B” and
divide the result by 2. This is the required adjustment
distance; write it down as “C”.
•
One turn of the adjustment screw extends the screw by
0.035” (0.89 mm). Divide “C” by this amount to deter-
mine how many turns to adjust the screw.
Measurement “A”
Measurement “B”
NOTE
B
A
–
2
-------------
C
=