Pipe threaders Flashcards
Pipe threaders are multi-purpose power tools that center, hold, and ____________ pipe while cutting, reaming, or threading
rotate
All pipe threading machines have one or two chucks that work together to hold and rotate and pipe and a ________________
gear drive
If a pipe threader doesn’t have an integral lubricant sump that automatically applies cutting oil, what can you do?
Manually apply using an oil basin and hand pump
On a pipe threader, if the oil does not flow from the lubrication arm when the pump is energized, it may be necessary to ______________________
prime the pump
After priming the oil pump, it is necessary to replace the primer scre and button plug or _________________________
The pump will drain itself immediately when the pump is energized
If priming is required regularly, _________________________
The oil pump likely requires repair
Power threaders are equipped with a universal ________________
die head
Die sets are classified according to the number of __________________
threads per inch
Dies for standard threaders are maintained in sets of __________
four
Dies for geared threaders are maintained in sets of ________
five
Standard dies will likely be damaged if used on what material?
stainless steel
The throw-out lever is a quick-released handle and marked ______ and ________
open and close
On most pipe threaders, the pipe can be inserted from __________________ of the chuck
either end
A pipe cutter in good condition will generally make what kind of cut?
A square cut
Some pipe threaders have two rotational speeds. Cutting and reaming are done at the higher speed. What is done at the lower speed?
Threading
What must be done before an operated is ready to thread the pipe?
Check the cutting oil level and prime the pump if necessary
If the fitting cannot be threaded as far as it should be or it threads on too far, what do you use to adjust the die position setting slightly?
The clamp lever on the die head
Should you reverse the rotation of the threader while it is running?
No
What does a geared threader not have?
An integrated power source. It must be connected through a power takeoff shaft.
