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Installing Centering Dies in Die Head
#12200
The 12200 die head uses three centering die segments.
Refer to Die Tables Nos. 8 and 10 for correct centering
dies.
1. Lay die head on bench with numbers facing up.
2. Remove stop screw with
3. Rotate scroll plate with operating lever to OPEN
position.
4. Remove dies from die head.
5. Die numbers 2 through 4 must agree with those
on die head.
6. Insert dies until die pins are seated in scroll slots.
7. Rotate scroll plate with operating lever towards
selector plates and replace stop screw.
8. If oversize or undersize adjustment is required,
use
⁄
" hex key to loosen selector plate screws.
5
32
Slide selector plate in direction of over or under
size mark on plate. Tighten selector plate screws.
Installing Tool Bits in Die Head #12200
All tool bits are used in the No. 1 die slot opening on
the 12200 die head. Refer to Die Tables Nos. 8 and 10
for correct tool bit.
1. Mount head on carriage pin.
2. Insert tool bit into the No. 1 die slot opening on
No. 12200 die head.
3. Rotate feed screw handle counterclockwise
slowly until tool bit engages. Continue to rotate
until handle stops.
4. To replace tool bit rotate feed screw handle
clockwise until tool bit disengages. Pull tool bit
out of die head slot.
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ROTHENBERGER USA – CLASSIC 22A
⁄
hex key.
3
16"
Operating Die Head #12200 for
Grooving, Beveling, or Saran Cutting
Note:
A. Always retract Tool Bit before operating
machine.
B. Ensure adequate COLLINS oil is present during
machining.
1. Install head on carriage pin.
2. Turn feed screw handle all the way counter-
clockwise until it stops.
3. Disengage operating lever from selector plate
and push it back against the scroll plate stop to
retract centering dies.
4. Make certain the pipe end to be machined is
positioned close to the front jaws.
5. Chuck pipe in the machine as previously
instructed and position die head over pipe by
using carriage feed handle.
6. Pull operating lever towards the operator in
order to engage in proper size slot of selector
plate.
7. Feed the tool bit in the same manner that you
would operate a lathe. Use a slow, even feed
rate.
Note: Do not plunge tool into pipe.
A continuous chip will curl off and away from
the tool at the proper feed. Excessive feed causes
breakdown of the cutting edge which will decrease
tool life or damage the tool.
Excessive feed is indicated by:
a) Poor surface finish
b) Bluish-colored chip due to excessive heat
generation
c) Chips crowd and build up on the tip of the tool,
instead of spiraling off away from the tool.
Advance the tool slowly as the tool breaks through
the pipe. Let the pipe turn 2-3 revolutions when it
breaks through, in order to obtain a clean cut-off
and to avoid tool breakage. After cut-off, advance
the tool until the groove depth indicator size mark
matches the guide line. Turn the feed screw one
turn clockwise to finish the groove to the correct
diameter. Let the pipe rotate 2-3 revolutions to clean
up the groove.
8. Retract tool bit by turning the feed screw han-
dle counterclockwise until it stops. Retract the
centering dies by disengaging and moving the
operat ing lever away from the operator until it
stops. Move carriage away from pipe and stop
machine.
9. For grooving, check groove diameter.
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