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1224 Threading Machine
714/914 Receding Self-opening die Heads
The Model 714 (NPT/NPSM) and 914 (BSPT/BSPP)
receding self-opening die heads are used on 1224 thread-
ing machine for 2
1
/
" to 4" pipe sizes. These die heads can
2
be adjusted to cut either tapered or straight pipe threads.
Release Handle
Die Head Washer
Cam Plate
Die Head
Body
Cam Locking
Plate Handle
Figure 12 – Receding Self-Opening Die Head
Inserting/Changing the Dies
1. Place the die head with numbers facing up.
2. Make sure the release foot is released/Die head is
open by pulling the release foot away from the die
head. Stay clear of spring loaded moving parts while
releasing.
3. Loosen the adjusting nut and lift die head washer foot
out of the slot.
Washer out
of Slot
Figure 13 – Inserting Dies
4. Rotate cam toward larger pipe sizes until adjusting
screw reaches end of slot.
5. Remove dies from die head.
Insert appropriate dies into the die head, numbered
edge up. Numbers on the dies must correspond with
those on the die head slots (see Figure 13). Dies
include a pocket that engages a ball detent in the die
10
Lockout Plate
Lockout Plate Screw
Size
Adjusting Nut
Die (4)
Release Foot
Release Foot
Pivot Block
Release Foot Screw
Die
head when properly installed Always change dies
as sets – do not mix dies from different sets.
6. Rotate cam to size setting desired.
7. Washer tongue should be in slot to left. Tighten
adjusting nut.
Adjusting Thread Size
1. Install the die head per the Threading Machine
Instructions and move the die head into threading
position.
2. Loosen the adjusting nut.
3. Position index line with desired size mark on cam/size
bar.
4. If thread size needs to be adjusted, set the index line
slightly off the mark on
the cam/size bar to -
ward larger sizes (larg-
er thread diameter, less
turns of fitting engage-
ment) or toward small-
er sizes (smaller thread
diameter, more turns of
fitting engagement) as
shown on the cam/size
bar.
5. Tighten the adjustment nut.
Cam/Size Bar
Figure 14 – Adjusting
Thread
Size
940-713-030.09_REV. G
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