Ega Master 56060 Manuel D'instructions page 17

1. If pipe tends to "walk off" drive roll, increase offset dimension (figures 3 & 4)
2. If drive roll flange shaves pipe end, decrease offset dimension.
3. If pipe end flare is excessive, lower pipe end to level with roll groover.
4. If pipe wobbles and/or "walks off" the drive roll, raise pipe end to level with roll groover.
5. Short lengths of pipe (under three feet) may require slight pressure to maintain the degree offset
dimension.
PROBLEM
Rolled groove too
narrow or too wide.
Rolled groove not
perpendicular to
pipe axis.
Pipe does not track
Pipe flared at groove
end.
Pipe drifts back and
forth on driving
roll axis while
grooving.
Groover does not roll
groove in pipe.
Pipe slips on driving
roll.
Pump not delivering
oil, cylinder does
not advance.
ROLL GROOVING TIPS
TROUBLESHOOTING
CAUSE
Incorrect size of grooving and driving rolls.
Mismatched grooving and driving rolls.
Grooving roll and/or driving roll worn.
Pipe length not straight.
Pipe end not square with pipe axis.
Pipe not level.
Groover not level.
Pipe axis not offset 1/2 degree from drive
roll axis.
1/2 degree offset not sufficient.
Not applying pressure to pipe.
Excessive weld seam.
Pipe end not square.
Pipe not level.
Operator is advancing groove roll too fast.
Pipe is too hard.
Pipe length not straight.
Pipe end not square with pipe axis.
Hard spots in pipe material or weld seams
harder than pipe.
Grooving roll feed rate too slow.
Pipe support stand rollers not in correct
location for pipe size.
Pipe wall maximum thickness exceeded.
Wrong rolls.
Pipe material too hard.
Adjustment nut not set.
Driving roll knurling plugged with metal or
worn flat.
Grooving roll feed rate too slow.
Pump release valve open.
Low oil in reservoir.
Dirt in pump body.
CORRECTION
Install correct size of grooving and
driving rolls.
Match grooving and driving rolls.
Replace worn roll.
Use straight pipe.
Cut pipe end square.
Adjust stand to level pipe.
Level groover.
Offset pipe 1/2 degree (See Figs. 3&4).
Offset pipe slightly more.
Apply pressure to pipe (See Figs.6&7).
Grind flush 2" from end of pipe.
Cut pipe end square.
Adjust stand to level pipe.
Slow down pumping action. (Refer to
proper operating instructions.)
Replace pipe.
Use straight pipe.
Cut pipe end square.
Use high quality pipe of uniform
hardness.
Feed grooving roll into pipe faster.
Position pipe stand rollers for pipe size
being used.
Check pipe capacity chart.
Install correct rolls.
Replace pipe.
Set depth.
Clean or replace driving roll.
Feed grooving roll into pipe faster.
Close release valve.
Check oil level per instructions.
Have serviced by qualified technician.
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