914 In Place Roll Groover
Troubleshooting
PROBLEM
Rolled Groove too narrow or
too wide
Rolled Groove not perpen-
dicular to pipe axis
914 will not track while
grooving
914 rocks from side to side
on Driving Roll while groov-
ing
914 Groover will not roll
groove pipe
914 Groover will not roll
groove to required diameter
Pipe slips on Driving Roll
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
Feed Screw not tight
Pipe end flattened or damaged
Hard spots in pipe material or weld seams harder
than pipe
Grooving Roll feed rate too slow
Pipe wall maximum thickness exceeded
Wrong rolls
Pipe material too hard
Adjustment screw not set
Maximum pipe diameter tolerance exceeded
Mismatched Grooving and Driving Rolls
Depth adjustment screw not set correctly
Grooving pressure too low
Driving Roll knurling plugged with metal or worn flat
Ridge Tool Company • Elyria, Ohio • U.S.A.
CORRECTION
Install correct size of Grooving and Driving Rolls
Match Grooving and Driving Rolls
Replace worn Roll
Use straight pipe
Cut pipe end square
Tighten feed screw with ratchet for every revolution
Cut off damaged pipe end
Hand feed Grooving Roll into pipe faster
Hand feed Grooving Roll into pipe faster
Check pipe capacity chart
Install correct rolls
Replace pipe
Set depth
Use correct diameter pipe
Use correct set of Rolls
Adjust depth setting
Increase pressure of feed screw
Clean or replace Driving Roll
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