30
VE414
TROUBLESHOOTING
Problem
Possible Cause
Solution
Pipe will not stay in
grooving rolls.
Incorrect pipe positioning.
Improper manual grooving
technique.
See Pipe Support section.
See Grooving Operation -
Grooving Short Pipe Lengths
section.
Pipe stops rotating
during grooving.
Rust or dirt has built up on lower
roll.
Excessive ram pressure.
Ram Speed Control Valve
requires adjustment.
Worn grooving rolls.
Remove accumulation from lower
roll with stiff wire brush.
Reduce ram pressure by turning
valve to the “black” position.
Turn the Ram Speed Control
Valve knob
clockwise
two to
three revolutions to reduce flow.
Inspect lower roll for worn knurls,
replace if worn.
Pipe flare is excessive.
Excessive ram pressure.
Ram Speed Control Valve
requires adjustment.
Pipe support adjusted too high.
Tool is tilted forward.
Incorrect pipe support
positioning, pipe is
“overtracking”.
Stabilizer(s) is pushing pipe to
the left and off center from the
rolls.
Reduce ram pressure by turning
valve to the “black” position.
Turn the Ram Speed Control
Valve knob
clockwise
two to
three revolutions to reduce flow.
Check pipe levelness. See Pipe
Support section.
Check tool levelness. See Tool
Setup section.
Move pipe support to right. See
Pipe Support section.
Back off stabilizer(s) to the
furthest point where it still
stabilizes pipe effectively. See
Stabilizer Adjustment section.
Pipe sways or vibrates
from side to side.
Incorrect stabilizer adjustment.
Use of left hand stabilizer may be
required, if not alrealy utilized.
Move stabilizer in or out until pipe
rotates smoothly.
See Stabilizer Adjustment section
for pipe sizes and length that
require the use of the left hand
stabilizer.
While grooving, loud
squeaks echo through
the pipe.
Incorrect pipe support
positioning, pipe is
“overtracking”.
Pipe not square cut.
Move pipe support to the right.
See Pipe Support section.
Cut pipe end squarely.
Continued on page 31.