Pipe Threading Machine User Guide – Troubleshooting
Below is a list of possible conditions you may encounter while in search of perfect threads. Under each condition is a list of possible causes that may be responsible for that condition. Clicking on any of the possible causes will direct you to the relative section in the manual which should explain and help you to resolve said threading issue.
Torn Threads
Dies not ground for material being cut
Chipped or broken teeth on dies
On smaller sizes no die bushing
Wavy Threads
Dies not ground for material being cut
Chattered Threads
Die head slots worn (See also)
Dies need to be stoned (See also)
Dies ground for different material
Dies resharpened too many times (See also)
On larger machines, worn drive gears
Stripping Threads
Off Center Threads
Machine out of alignment (See also)
Material out of round
Tapered threads on bolt
Die head opening partially during cut
Machine out of alignment (See also)
Inconsistent Size
Die head linkage worn (See also)
Variations in material being cut
On pipe threads operator opening die head too early or too late
Undersized Thread Diameter
Taper Pipe
Adjustable die head set too deep
Bolt
Adjustable diehead set too deep
Oversized Thread Diameter
Taper Pipe
Adjustable die head set too shallow
Bolt
Adjustable diehead set too shallow
Lead Error on Bolt Threads
Dies need to be stoned (See also)
Dies resharpened too many times (See also)
Inconsistent pressure on carriage (See also)
Reground dies have wrong throat angle
Taper Changes Over Length of Thread
Die thread length not long enough to generate a full taper pipe thread
Slots worn in diehead (See also)
Die head opening partially during cut
Diehead not aligned with material
Dies Wear Out Quickly
Possible damage from regrinding
Dies have been resharpened too many times (See also)
Teeth on Dies Worn Off or Turned Over
Broken die tooth embedded in pipe
Dies Breaking
On smaller diameters use die bushing
Die head slots worn (See also)
Dies Chipping On Teeth
On smaller diameters use die bushing
Die head slots worn or die holders worn (See also)
Dies damaged from being hammered in and out of diehead
Stopping machine and restarting during cut without opening diehead
Possible damage from regrinding
Dies Chipping in Throat
Pipe seam opened up
Slamming material into dies at start of cut (See also)
Threading roller-cut stainless steel
Chips Fusing to Dies
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Dies Difficult to Move in Diehead
Chips in slots of diehead (See also)
Dirt and grit in diehead (See also)
Broken or cracked cam in diehead
Dies Will Not Start on Material
Adjustable diehead set too small
Dies not properly seated in diehead
Machine out of alignment (See also)
Material not gripped properly in chuck jaws
Machine in reverse
Dies are for left hand threads
Squealing During Cut
Material hanging too far out of chuck
Roller Cutter Wheels Breaking
Roller Cutter Cuts a Spiral
Cutter assembly mounting bolt worn
Cutter assembly out of alignment with spindle
Oster superior threading machines are built to last and are capable of high production rates. From fire sprinkler pipe threading to anchor bolt manufacturing, our threading machines serve a variety of industries. Why do our customers choose Oster? Our pipe and bolt threading machines are the highest quality and most production oriented on the market.
Is your Oster pipe threading machine slowing down or showing its age? Are you looking to upgrade to an Oster superior threading machine for a more affordable price? At Oster, older threading machines are completely refabricated to run like new while offering a cost-effective alternative to purchasing a new machine. Rebuilt bolt threading machines are available to purchase or send in your machine for refabrication.
Contact us today with any questions you have regarding Oster pipe threading machine capabilities or request a quote to inquire about our bolt threading machines.
