300 Compact Pipe and Bolt Threading Machine
Figure 8 – Reaming Pipe With No. 344 Reamer
4. Retract reamer and return reamer to UP position.
5. Release foot switch and remove your foot from the
housing.
Threading Pipe or Rod With
Quick-Opening, Self-Opening
or Semi-Automatic Die Head
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. Check directional switch to insure it is in the FOR
(Forward) position. Depress and hold the foot switch
down with left foot.
NOTE! 300 Compact Machines have an automatic oil-
ing system that brings oil to the work through the
die head. Oil flow can be adjusted with oil flow
control valve located on back side of carriage
(Figure 9).
Increase Flow
Figure 9 – Oil Flow Control
10
5. Turn carriage handwheel to bring dies against end
of pipe. Slight pressure on handwheel will start dies
(Figure 10).
Figure 10 – Threading Pipe With No. 811-A Quick
Opening Die Head
6. Quick-Opening 811A Die Head (Figure 11) – When
thread is completed, raise throwout lever to open
position, retracting dies.
Self-Opening 815A Die Head (Figure 12) – When
die head trigger contacts end of pipe, throwout
lever is automatically opening.
Semi-automatic die head (Figure 13) – When the
end of the pipe being threaded is flush with the end of
the number 1 die, hit the handle for the dies to
release the pipe.
7. Turn carriage handwheel to back die head off pipe.
8. Swing die head back to UP position.
Removing Pipe From
The Threading Machine
1. Use repeated and forceful clockwise spins of the
speed chuck handwheel at the front of the Threading
Machine to release the workpiece from the speed
chuck jaws.
2. If necessary, loosen the rear centering device using
a clockwise rotation of the handwheel at the rear of
the Threading Machine.
3. Slide the workpiece out of the Threading Machine,
keeping a firm grip on the workpiece as it clears the
Threading Machine.
WARNING
ment tip-overs when handling long workpieces, make
sure that the end farthest from the Threading Machine is
supported prior to removal.
Ridge Tool Company
To avoid injury from falling parts or equip-