300 Compact/1233 Threading Machines
SelfOpening Die Heads
The Model 815A Die Heads are self-opening die heads.
For
/
" through 2" pipe sizes, a trigger can be used to
1
2
open the die head when the thread is complete. For
to
/
" sizes, bolt and straight threads, and if desired for
3
8
the other sizes, the die head is manually opened when
the thread is complete.
"Remove Dies" Mark
Roll Pin
Size Bar
Index
Line
Lock
Screw
Throwout
Lever
Figure 10 – Universal Self-Opening Die Head
Inserting/Changing the Dies
1. Place the die head with numbers facing up.
2. Make sure the trigger assembly is released and die
head OPEN by pulling the trigger slide away from the
die head. Stay clear of the spring loaded Throwout
Lever while releasing trigger assembly.
Throwout
Lever
Open
Figure 11 – Open/Closed Position
3. Loosen clamp lever ap proximately six full turns.
4. Pull lock screw out of size bar slot so roll pin will by-
pass slot. Position size bar so that the index line on
lock screw is a ligned with the RE MOVE DIES mark.
5. Remove dies from the die head.
6. Insert appropriate dies into the die head, numbered
edge up until the indicator line is flush with the edge
of the die head (see Fi gure 12). Num bers on the dies
must cor res pond with those on the die head slots.
Always change dies as sets – do not mix dies from
different sets.
10
10
/
1
Trigger
Assembly
Trigger Slide
Clamp Lever
Throwout
Lever
Closed
7 . Move size bar so in dex
line on lock screw is a-
ligned with desired size
mark. Adjust die inser-
"
8
tion as needed to allow
movement.
8. Make sure roll pin points
to ward REMOVE DIES
mark.
9. Tighten the clamp lever.
Adjusting Thread Size
1 Install the die head per the Thread ing Machine
Instruc tions and move the die head into threading
position.
2. Loosen clamp lever.
3. Position size bar so index line on lock screw is
aligned with desired size mark on size bar.
4. If thread size needs to be
ad justed, set the lock screw
index line slightly off the mark
on size bar in the direction of
OVER (larger dia meter thread,
less turns of fitting engage-
ment) or UNDER (smaller
thread dia meter, more turns of
fitting en gagement) markings.
5. Tighten clamp lever.
Trigger Slide Adjustment
Position the Trigger Slide for the size of pipe being thread-
ed (see Figure 14).
•
/
" and
/
1
3
2
Slide.
• 1" to 2" – End of pipe should
hit the shank of the Trigger
Slide.
For
•
/
", ¼" and
1
8
• Longer or shorter threads
• Bolt threading
Push trigger slide up and out of the
way. Die head must be opened man-
ually.
Opening the Die Head at the End of the Thread
When using trigger it will contact the end of pipe, caus-
ing the die head to automatically open. Stay clear of the
spring loaded Throwout Lever when it releases.
Indicator
Line
Indicator Line
Figure 12 – Inserting Dies
Lock
Screw
Index
Line
Size
Bar
Figure 13 – Adjusting
" – End of pipe should hit foot of Trigger
4
1" thru 2"
pipe hit
this
surface
/
" pipe
3
1
/
" and
8
2
pipe hit this
surface
Figure 14 – Setting
999-998-098.08_REV C
Indicator
Line
"Over"
"Under"
Thread
Size
3
/
"
4
Trigger
Slide
the
Trigger