RIDGID 920 Roll Groover Mode D'emploi page 20

920 Roll Groover
Table IV. Troubleshooting
Troubleshooting Table
PROBLEM
Roll Groove too narrow
or too wide.
Rolled Groove not per-
pendicular to pipe axis.
Pipe will not track while
grooving.
Pipe flared at grooved end.
Pipe drifts back and forth
on Driving Roll axis while
grooving.
Pipe rocks from side to
side.
Groover will not roll
groove in pipe.
Groover does not meet
specification.
Pipe slips on Driving Roll.
Groover will not rotate
pipe while grooving.
Pipe raises or tends to tip
Groover over backwards.
18
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.
Stabilizer wheel not engaging pipe.
Groover not level.
Pipe too hard.
Stabilizer too tight.
Pressure too high.
Pipe length not straight.
Pipe end not square with pipe axis.
Not using stabilizer.
Pipe stands too close to end of pipe.
Pipe end flattened or damaged.
Hard spots in pipe material or weld seams harder
than pipe.
Grooving Roll hand feed rate too slow.
Power Drive speed exceeds 38 RPM.
Pipe support Stand Rollers not in correct location
for pipe size.
Maximum pipe wall thickness exceeded.
Wrong rolls.
Pipe material too hard.
Adjustment screw not set.
Power Drive does not supply required minimum
torque.
Maximum pipe diameter tolerance exceeded.
Mismatched Grooving and Driving Rolls.
Grooving Roll hand feed rate too slow.
Driving Roll knurling plugged with metal or worn flat.
Power Drive does not supply minimum required
torque.
Chuck not closed on drive shaft flats.
Pipe Support Stand too close to Groover.
Ridge Tool Company
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.
Offset pipe 1 / degree.
2
Level Groover.
Use other pipe.
Adjust stabilizer.
Lower pressure.
Use straight pipe.
Cut pipe end square.
Use stabilizer.
Move pipe stand in 1 / distance from end of pipe.
4
Cut off damaged pipe end.
Hand feed Grooving Roll into pipe faster.
Hand feed Grooving Roll into pipe faster.
Reduce speed to 38 RPM.
Position Pipe Stand Rollers for pipe size being
used.
Check pipe capacity chart.
Install correct rolls.
Replace pipe.
Set depth.
Use RIDGID No. 300, 36-RPM Power Drive.
Use correct diameter pipe.
Use correct set of rolls.
Hand feed Grooving Roll into pipe faster.
Clean or replace Driving Roll.
Use RIDGID No. 300, 36 RPM Power Drive.
Close chuck.
Move pipe stand 1 / distance in from outer end of
4
pipe.