Troubleshooting - RIDGID 918 Manual

Troubleshooting

PROBLEM
Groove too narrow or
too wide.
Rolled groove not per-
pendicular to pipe axis.
Pipe does not track
while grooving. Groover
will not track on pipe
while grooving.
Pipe flared at grooved
end.
Pipe drifts back and
forth on driving shaft
axis while grooving.
Pipe rocks from side to
side.
Groover will not roll
groove in pipe.
Groover will not roll
groove to required
diameter.
Pipe slips on driving
roll.
999-998-946.10_REV. C
POSSIBLE REASONS
Incorrect groove roll and drive shaft.
Groove roll and/or drive shaft worn.
Mismatched groove roll and drive shaft.
Pipe length not straight.
Pipe end not square.
Pipe and drive shaft not parallel.
Pipe axis not offset 1 / degree from drive roll axis.
2
1 / degree offset not sufficient.
2
Drive shaft/roll knurl plugged or worn flat.
Inside of pipe has too much scale.
Excessive weld seam.
Not using/properly adjusting stabilizer.
Pipe end not square/deburred.
Pipe and drive shaft not parallel.
Operator is advancing groove roll too fast.
Pipe is too hard.
Stabilizer too tight.
Pipe length not straight.
Pipe end not square.
Pipe stand too close to end of pipe.
Pipe end flattened or damaged.
Hard spots in pipe material or weld seams harder
than pipe.
Groove roll feed rate too slow.
Pipe supports stand not in correct location .
Power drive/threading machine speed exceeds 57
rpm.
Maximum pipe wall thickness exceeded.
Pipe material too hard.
Adjustment nut not set.
Wrong roll set.
Maximum pipe diameter tolerance exceeded.
Depth adjustment nut not set correctly.
Pipe too hard.
Groove roll feed rate too slow.
Drive shaft knurls plugged with metal or worn flat.
918 Roll Groover
SOLUTION
Install correct groove roll and drive shaft.
Replace groove roll and/or drive shaft.
Install matching roll set.
Use straight pipe.
Cut pipe end square.
Adjust stand to make pipe parallel.
Offset pipe 1 / degree.
2
Offset pipe slightly more.
Clean or replace drive shaft/roll.
Clean inside of pipe.
Grind weld seam flush 2" from end of pipe.
Adjust stabilizer. Apply pressure to pipe (see
Figure 19/20).
Properly prep end of pipe.
Adjust stand to make pipe parallel.
Slow down pumping action. (Refer to Operating
instructions.)
Replace pipe.
Adjust stabilizer.
Use straight pipe.
Cut pipe end square.
Move pipe stand in to match set-up Instructions.
Cut off damaged pipe end.
Use different pipe.
Feed groove roll into pipe faster.
Position pipe stand rollers correctly.
Reduce speed to 57 rpm.
Check pipe capacity chart.
Replace pipe.
Set depth.
Install correct roll set.
Use correct diameter pipe.
Adjust depth setting.
Use different pipe.
Feed groove roll into pipe faster.
Clean or replace driving roll.
19