535 Manual Chuck/535 Auto Chuck Threading Machines
Troubleshooting
PRoBLeM
Torn threads.
Out-of-round or crushed
threads.
Thin threads.
No cutting oil flow.
Machine will not run.
Motor running but
machine will not work.
Pipe slips in jaws.
22
PoSSIBLe ReASoNS
Damaged, chipped or worn out dies.
Incorrect cutting oil.
Dirty or contaminated oil.
Die head not properly aligned with pipe.
Improper pipe.
Die head not properly set.
Carriage not moving freely on rails.
Die head set undersize.
Pipe wall thickness too thin.
Dies inserted into head in wrong order.
Forcing carriage feed handle during threading.
Die head cover plate screws are loose.
Low or no cutting oil.
Machine set up for Left Hand Threading.
Oil Screen Plugged.
Die head not in the threading (DOWN) position.
Motor brushes worn out.
V-belt loose.
Worn out v-belt.
Jaw inserts loaded with debris.
Jaws inserts worn out.
Pipe not properly centered in jaw inserts.
Chuck not tight on pipe (535M).
Chuck not tight on pipe (535A)
Brake assembly not properly adjusted (535A).
SoLuTIoN
Replace dies.
Only use RIDGID
®
Thread Cutting Oil.
Replace the RIDGID
®
Thread Cutting Oil.
Clean chips, dirt or other foreign material from
between die head and carriage.
Recommend using with black or galvanized steel
pipe.
Pipe wall too thin – use schedule 40 or heavier
pipe.
Adjust die head to give proper size thread.
Clean and lubricate carriage rails.
Adjust die head to give proper size thread.
Use schedule 40 or heavier pipe.
Put dies in proper position in die head.
Once dies have started thread, do not force car-
riage feed handle. Allow carriage to self-feed.
Tighten screws.
Fill oil reservoir.
See section on Left Hand Threading.
Clean Screen.
Move die head to the threading position.
Replace brushes.
Tighten the v-belt.
Replace the v-belt.
Clean jaw inserts with wire brush.
Replace jaw inserts.
Make sure pipe is centered in jaw inserts, use the
rear centering device.
Use repeated and forceful spins of the hammer
wheel to tighten speed chuck.
535A chuck only grips when rotating.
Confirm connecting links and jaws are assembled
in proper orientation (see Jaw Replacement,
Take machine for service.
Maintenance section).
999-998-086.10_REV. D