14. With the HALF SHOE in place and the second CENTER
MARK lined up at the center of the shoes, advance
the radius die forward until the pusher block springs
are compressed and the tubing is held securely.
Carefully control the advancement of the radius die
to prevent denting or bending of the pipe at this time.
15. Now, rotate the tubing, not the dial, so that the
pendulum pointer or dial indicator points to the proper
setting as shown in the PIPE ROTATION section of
the card. In this case the PIPE ROTATION will be
147 degrees. ALWAYS use the inside set of numbers.
(See figure 2-C)
NOTE:
The rotation dial is equipped with two scales.
The standard scale which is used for all
regular bending operations is positioned to the
INSIDE of the dial. The OUTSIDE scale is
used for bending “mirror images” or opposite
side pipes.
16. With the rotation dial properly set at 147 degrees and
the center mark lined up, advance the radius die to
11 degrees as shown on the card. Retract the die to
the original starting position.
17. Review the SYMBOLS section of the card and check
for any special instructions. On bend number three
you will notice that a REVERSE / USE HALF SHOE
is called for.
IMPORTANT NOTE:
The ROTATION DIAL degree plate
MUST NEVER
be moved after bending has begun.
ALWAYS
be prepared to support the tubing as it is released
from the dies to prevent it from hitting the ground. If the dial
is accidentally moved during the bending process,
re-position the dial so that the ZERO mark is located at the
weld seam of the tubing, or return to the previous bend and
position the pendulum pointer to the degrees required for
that particular bend.
18. If a bending instruction calls for a REVERSE, remove
the tubing and position the ROTATION DIAL on the
LEFT SIDE of the machine. Be careful not to move
the ROTATION DIAL degree plate during this process.
NOTE:
When a REVERSE is called for, the rotation dial
will be positioned on the LEFT side for that
bend only. If the SYMBOL section shows a
REVERSE again for the following bend, the
rotation dial MUST remain on the LEFT side. If
no REVERSE is called for, the rotation dial
MUST be returned to the RIGHT side.
19. For bend number three, REVERSE the tubing and
install the HALF SHOE now. (See figure 3-A)
20. With the HALF SHOE in place and the third CENTER
MARK lined up at the center of the shoes, advance
the radius die forward until the pusher block springs
are compressed and the tubing is held securely.
21. Rotate the tubing, not the dial, so that the pendulum
pointer or dial indicator points to the proper setting as
shown in the PIPE ROTATION section of the card. In
this case, the PIPE ROTATION will be 250 degrees.
USE THE INSIDE set of numbers. Advance the radius
die to 7 degrees.
18 Bender Operation Manual
Figure 2-C
Figure 2-B
Figure 3-A
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