1224 Threading Machine
Threading Pipe With Nos. 711 and 911
Self-Opening Die Heads (Right Hand
Threading) and Nos. 713 and 913 Quick-
Opening Die Heads (Left Hand Threading)
1. Install die set. Refer to Die Installation procedure.
2. Swing cutter and reamer to UP position.
3. Swing die head to DOWN position with throwout lever
set to CLOSE position.
4. Position shift knob.
CAUTION
Shifting should be done with machine idling.
Do not operate shift knob while under load.
NOTE! Shift knob is in 36 RPM position when threading
2" pipe or less. When threading 2
dard pipe or other high torque applications such
as stainless steel or 30 RC rod, shift knob must be
in 12 RPM position.
NOTE! If shift knob is in 36 RPM position and machine
stalls, immediately release foot switch. Position
shift knob in 12 RPM position. Repeated stalling
may damage motor.
5. Turn REV/OFF/FOR switch to FOR position for right
hand threading and step on foot switch. Use REV po-
sition for left hand threading. Oil should flow from die
head.
6. Turn carriage handwheel to bring dies against end of
pipe. Pressure on handwheel will start dies.
NOTE! Carriage handwheel may be repositioned to im-
prove leverage when starting dies. To reposition:
pull handwheel out (away from machine), rotate
handwheel to desired position, push handwheel in.
7. a. Quick-Opening Die Head (Figure 10) – When
thread is completed, raise throwout lever to open
head position, retracting dies.
7. b. Self-Opening Die Head (Figure 9) – When die
head end of pipe contacts trigger, throwout lever is
automatically opened on tapered threads.
NOTE! Throwout lever on Self-Opening Die Head must
be pulled open manually when cutting straight
threads (NPSM/BSPP).
8. Release foot switch and turn carriage handwheel to
back die head off.
9. Release latch on 713 or 913 die head (Figure 8) and
swing die head to UP position.
10
" to 4" stan-
1
/
2
Figure 8 – Release Latch On Left-Hand Die Heads
Index Line
Figure 9 – Nos. 711 and 911 Self-Opening Die Head
Ridge Tool Company
Roll Pin
Lock Screw
Throwout
Lever
Size Bar
Clamp
Lever
Trigger
Assembly