ADMINISTRATION
EXPLAIN: Able to explain how to correctly use a pipe threading machine to cut pipe thread according to manual.
PROCEDURE
The employee will explain as follows
1. How to use the rigid thread cutting machine operating steps?
Answer:
1.1 Place the length of pipe you want to thread into the pipe vise and tighten the screw handle so the pipe is held securely.
1.2 Insert the conically shaped pipe reamer into the end of the pipe you want to thread and turn the reamer in a clockwise direction. Remove any raised portions on the inside of the pipe so the interior wall is smooth and free of any debris.
1.3 Remove the reamer from the pipe and set to the side. Apply a small amount of lubricant to the end of the pipe. The lubricant will help in allowing the threader dies to cut the metal for the pipe threads.
1.4 Place the manual threader over the end of the pipe and tum the "directional" button toward the arrow side of the threader. The directional arrow button allows the manual threader to cut the threads and the handle be returned in a ratchet-like motion.
1.5 Use the clean rag and push against the end of the threader while turning the handle in a clockwise rotation. Continue to do so until the thread dies engage the metal of the pipe. Squirt some more oil on the pipe as you continue to operate the manual threader, cutting the male threads on the end of pipe.
1.6 Continue cutting the threads until the die reaches the end of the pipe. This will be indicated by the rear end of the manual threader coming in line with the end of the pipe. Tum the directional arrow button to the reverse side and tum the handle of the manual threader in a counter clockwise direction. The manual threader should easily screw off.
1.7 Squirt some more oil on the new threads and clean with the rag. The threads are now ready to be used for your project.
2. How to use the nipple cutting adapter set?
Answer:
a. Insert chuck adapter to the threading machine
b. Select thread holder with compatible size of nipples to be cut and install it into the chuck adapter
c. Holds short or close nipples for threading into chuck adapter by release chuck.
d. Perform cutting thread as normal
e. After finished thread cutting use special tool to release adapter chuck and remove short nipple
f. Remove chuck adapter from threading machine.
Note: While working on the Chuck adapter or Chuck of threading machine for removing/installing, switch of threading machine must be off
1) How to use change the cutting head and bits?
Answer:
When the head and bits not compatible with pipe we need to make the thread, we must be change them.
1. Remove head from the unit
2. Loosen die lock nut
3. Change compatible die for pipe to make thread
4. Put die head back to unit