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OPERATION MANUAL
4.3 FORMING CURVES
The success to forming curves with the bead roller is
careful coordination between cranking the handle, and
moving the metal workpiece slowly through the dies,
while turning it through the curve, at the same time.
• It is critical to keep the guideline aligned with the
Upper Die as you go (Fig. 12).
• If your design forms an oval, start the bead in the
centre of a straight or in the largest radius section
• Do not attempt to start right at a corner or a joint of
two lines, as it will be extremely difficult to line up the
bead perfectly when completing the form.
• By using combinations of curves and straight lines,
there is almost no limit to the designs than can be
created with the Hafco Bead Roller.
F
ig
. 12
5.1 ADJUSTING THE UPPER BEARING BLOCKS
F
ig
. 13
F
ig
. 14
The accuracy and performance of the Hafco Bead Roller
is partly determined by the upper bearing blocks. They
need to move but also need to support the upper shaft
firmly. Adjustment of the Upper Bearing Blocks is critical
to producing a quality result.
To adjust the Front Bearing Block.
1. With an Hex key hold the set screw “A” in Figure 13.
2. Tighten the nyloc nut “B” in Figure 13 until the block
is tight then back the nyloc nut off half a turn or until
the block moves with the (39#) Tension Adjustment
Handle.
3. Re-test to make sure the Front Bearing Block moves
but is not loose. If still tight then back off the nyloc
nut another half turn.
To adjust the Rear Bearing Block.
1. With an Hex key hold the set screw “C” in Figure 14.
2. Tighten the nyloc nut “D” in Figure 14 until the block
is tight then back the nyloc nut off half a turn or until
the block moves with the (39#) Tension Adjustment
Handle.
3. Re-test to make sure the Rear Bearing Block moves
but is not loose. If still tight then back off the nyloc
nut another half turn.
A
B
C
D
5. MAINTENANCE
06/01/2020
Instructions Manual for SJ-24D (S641)
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