23 Bender Operation Manual
USING THE STANDARD SEGMENT
EXPANDERS - There are five standard segment sets
included with your bender. Each segment set is designed
to be used with a particular size tubing only. The appro-
priate sizes are shown below. Standard segment sets are
used for making straight expansions. (See chart on page
12 for typical end finishing illustrations.)
The following procedure is provided as a step-by-step
instruction to begin proper use of the internal expander.
1. Turn the machine on.
2. Lift the control handle to extend the cylinder shaft.
Install the arbor making sure that it is threaded all
the way on to the shaft.
3. Grease the arbor thoroughly.
4. Install the appropriate segment set by simply
forcing the set over the head of the arbor. Grasp
the segment set firmly to keep fingers together.
5. Adjust the buttress canister until the grooved line on
the canister is lined up with the grooved line on the
aluminum pointer. Then center the “X” symbol on
top. With the buttress canister properly lined up, the
arbor will automatically stop so that the tubing is
expanded to the exact inside diameter for the
corresponding size segment set. (See figure 1-A)
6. Place the tubing over the segment set. Be sure to
slide the tubing all the way down to the shoulder.
NOTE:
If there is a burr or dent on the end of the tubing, place
the tubing on the notched end of the segment set and
tap the valve handle until the burr is removed.
(See figure 2-A)
7. With the tubing in position and the buttress canister
lined up you are ready to expand.
8. Tap the control handle down until the tubing begins
to expand. Release and rotate the tubing clockwise.
Repeat until a smooth uniform expansion is produced.
Continue depressing the valve handle and rotating
the tubing until the arbor stops expanding.
(See figure 3-A)
Bender Operation Manual 23
IMPORTANT!
ALWAYS use the correct segment sets with the
corresponding tubing size. Incorrect usage of
segment sets will result in premature wear and
breakage. ALWAYS keep arbor well greased.
Figure 1-A
Figure 2-A
SS-112 1-1/2” O.D. tubing to 1-5/8” I.D.
SS-134/178 1-3/4” or 1-7/8” O.D. tubing to 1-7/8
I.D.
SS-200 2” O.D. tubing to 2-1/8” I.D.
SS-214 2-1/4” O.D. tubing to 2-3/8” I.D.
SS-212 2-1/2” O.D. tubing to 2-5/8” I.D.
Part Number Maximum Expansion
Figure 3-A
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