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1215 Threading Machine
12. Tighten clamp lever. For bolt threads, align index line
with bolt line on size bar.
13. If oversize or undersize threads are required, set the
index line in direction of over or under size mark on
size bar.
Roll Pin
Index Line
Lock Screw
Throwout
Lever
Figure 10 – Self-Opening Die Head
Checking Thread Length and Depth
(See Figure 11.)
1. Thread is of proper length when die is flush with pipe
end.
2. Thread is of proper depth if ring gage is plus or minus
one ( + /-1) turn from end of pipe.
3. A pipe fitting with 4 to 5 turns of hand tight engage-
ment is compatible with a ring gage.
4. To correct large threads adjust die head slightly toward
the under marking on die head size bar.
5. To correct small threads adjust die head slightly to-
ward the over marking on die head size bar.
Size Bar
Clamp
Lever
Trigger
Assembly
Ridge Tool Company • Elyria, Ohio • U.S.A.
Die
W
Pipe
Starting to Cut Thread
A - Full Width Die Thread
Thin Ring
Gage
D
Flush
One Turn Large
(Basic Size)
(Maximum Size)
B - Checking Threads Within Pipe Gage
Figure 11 – Checking Length and Depth
No. 1219 Nipple Chuck
The RIDGID 1219 Nipple Chuck is a quick and easy tool
for holding short and close nipples or studs for threading.
" to 1
" Standard Pipe (NPT).
Capacity:
1
/
1
/
8
2
" to 1
" Bolts or Studs UNC or UNF.
1
/
1
/
4
2
Pipe Adapters
",
",
",
",
1
/
1
/
3
/
1
/
8
4
8
2
", 1", 1
", 1
"
3
/
1
/
1
/
4
4
2
Short or Close Nipple Threading
Procedure
WARNING
DO NOT start machine when chuck wrench is en-
gaged with adapter or release collar.
1. Grip pipe in machine chuck. Thread and ream one
end and cut nipple to desired length.
2. Place nipple chuck body (Figure 12) in power drive
chuck, gripping jaw grooves.
3. Position insert (Figure 13) small end toward adapter
" to
" pipe; large end with 1" pipe; no insert
with
1
/
3
/
8
4
" pipe and up.
1
1
/
4
4. Select proper size nipple chuck adapter and screw into
nipple chuck (Figure 14) by hand. Tighten with wrench.
5. Screw nipple (Figure 15) threaded on one end into
adapter by hand. Ream and thread other end.
Die
Die Flush
W
With End
of Pipe
Pipe
Completed Thread
D
D
One Turn Small
(Minimum Size)
Stud Adapters
" to 1
" UNC
1
/
1
/
4
2
" to 1
" UNF
1
/
1
/
4
2
9
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