300 Compact Pipe and Bolt Threading Machine
Machine Inspection
WARNING
To prevent serious injury, inspect your Threading
Machine. The following inspection procedures
should be performed on a daily basis:
1. Make sure Threading Machine is unplugged and the
directional switch is set to the OFF position (Figure 6).
Rear
Centering
Chuck Jaw
Device
Handwheel
FOR/OFF/REV
SWITCH
Motor
Chip Tray
Hand
Cover
Hold
Figure 6 – No. 300 Compact Threading Machine
2. Clean the speed chuck jaws with a wire brush.
3. Inspect the jaw inserts for excessive wear. Refer to
the Maintenance Instructions if they need to be
replaced.
NOTE! For plastic and coated work pieces, special jaw
inserts (No. 97365) should be used to prevent
damaging the workpiece.
4. Make sure the foot switch is present and attached to
the Threading Machine.
WARNING
Do not operate the Threading Machine
without a foot switch.
5. Inspect the power cord and plug for damage. If the
plug has been modified, is missing the grounding
pin or if the cord is damaged, do not use the
Threading Machine until the cord has been replaced.
6. Inspect the Threading Machine for any broken, miss-
ing, misaligned or binding parts as well as any other
conditions which may affect the safe and normal
Cutter
Quick Opening
Die Head
Reamer
Carriage
Handwheel
Front
Hand
Hold
Ridge Tool Company
operation of the machine. If any of these conditions
are present, do not use the Threading Machine until
any problem has been repaired.
7. Lubricate the Threading Machine if necessary accord-
ing to the Maintenance Instructions.
8. Use tools and accessories that are designed for your
Threading Machine and meet the needs of your appli-
cation. The correct tools and accessories allow you to
do the job successfully and safely. Accessories de-
signed for use with other equipment may be haz-
ardous when used with this Threading Machine.
9. Clean any oil, grease or dirt from all handles and
controls. This reduces the risk of injury due to a tool or
control slipping from your grip.
Inspect the cutting edges of your tools and dies. If
necessary, have them replaced prior to using the
Threading Machine. Dull or damaged cutting tools and
dies can lead to binding, tool breakage and poor
quality threads.
Clean metal shavings and other debris from the chip
tray of the Threading Machine. Check the level and
quality of the thread cutting oil. Replace or add oil if
necessary. Reservoir in the base will hold approxi-
mately five (5) quarts of thread cutting oil.
NOTE! If using 250 Folding Stand, be sure to remove oil
seal pressure plate.
NOTE! Thread cutting oil lubricates and cools the threads
during the threading operation. A dirty or poor
grade cutting oil can result in poor thread quality.
NOTE! To drain dirty oil and properly maintain the oil sys-
tem, refer to the "Maintenance Instructions".
Machine and Work Area Set-Up
WARNING
To prevent serious injury, proper set-up of the
machine and work area is required. The following
procedures should be followed to set-up the
machine.
1. Locate a work area that has the following:
• Adequate lighting
• No flammable liquids, vapors or dust that may
ignite.
• Grounded electrical outlet
7