TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
Pipe will not stay in grooving
rolls.
Incorrect pipe positioning of long pipe
length.
Refer to the “Grooving Long Pipe Lengths” section.
Lower roll and pipe are not rotating
clockwise.
Refer to the “Power Hookup and Verification of Pipe Rotation
Direction” section.
Pipe stops rotating during
grooving.
Rust or dirt buildup is present on the
lower roll.
Remove rust or dirt accumulation from the lower roll with a stiff
wire brush.
Rust or dirt is excessively heavy inside the
pipe end.
Remove heavy rust and dirt from inside the pipe end.
Excessive ram pressure.
Reduce ram pressure by turning the selector valve on the front of
the tool to the
“BLACK”
setting.
Ram speed is not set correctly.
Refer to the “Ram Speed Control Valve Adjustment” section.
Worn grooving rolls.
Inspect the lower roll for worn knurls. Replace the lower roll if
excessive wear is present.
The main breaker has tripped and/or
thermal overloads in the motor starter
have tripped.
Reset the breaker and/or motor starter thermal units.
The Woodruff keys are broken or missing.
Remove the lower roll and insert the punch tool into the key
removal hole(s). Press out the broken key and install the new key
(supplied with the tool). Reinstall the lower roll.
While grooving, loud squeaks
echo through the pipe.
Incorrect pipe support positioning of a long
pipe length. Pipe is “over-tracking.”
Move the pipe support to the right. Refer to the “Grooving Long
Pipe Lengths” section.
Pipe is not cut square.
Cut the pipe end squarely.
Pipe is rubbing excessively on the lower-
roll backstop flange.
Remove the pipe from the tool, and apply a light coating of
bandsaw blade wax to the face of the pipe end.
Ram speed is not set correctly.
Refer to the “Ram Speed Control Valve Adjustment” section.
During grooving, loud thumps
or bangs occur approximately
once every revolution of
the pipe.
Pipe has a pronounced weld seam.
For 12-inch/323.9-mm and smaller pipe sizes, raised internal and
external weld beads and seams must be ground flush with the pipe
surface 2 inches/50 mm back from the pipe ends.
TM-VE268_46
REV_H
TM-VE268
/ Operating and Maintenance Instructions Manual
Summary of Contents for VE268
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