TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
Pipe will not stay in grooving
rolls.
Incorrect pipe positioning of long pipe.
Refer to “Long Pipe Lengths” section.
Pipe stops rotating during
grooving.
Rust or dirt has built up on lower roll.
Remove accumulation from lower roll with stiff wire brush.
Worn grooving rolls.
Inspect lower roll for worn knurls. Replace if worn.
Motor has stalled due to excess pumping of the
hydraulic pump handle.
Open the hydraulic pump valve to free the pipe, then close
hydraulic pump valve. Continue grooving, pumping at a
moderate rate.
Circuit breaker has tripped or fuse has blown on
electrical circuit supplying motor.
Reset breaker or replace fuse.
While grooving, loud squeaks
echo through the pipe.
Incorrect pipe support positioning on long pipe.
Pipe is “overtracking”.
Refer to the “Long Pipe Lengths” section.
Pipe end is not cut square.
Cut pipe end squarely.
Pipe is rubbing excessively hard on the lower
roll.
Remove pipe from tool and apply a film of grease to the face of
the lower roll, as needed.
During grooving, loud thumps
or bangs occur about once
every revolution of the pipe.
Pipe has a pronounced weld seam.
Raised internal and external weld beads and seams must be
ground flush with the pipe surface 2 inches/50 mm back from
the pipe ends.
Tool won’t groove pipe.
Hydraulic pump valve is not closed tightly.
Tighten the hydraulic pump valve.
Hydraulic pump is low on oil.
Refer to the “Maintenance” section.
Pipe is beyond tool’s wall thickness capability.
Refer to the “Tool Rating and Roll Selection” section.
In the event of tool malfunction outside the scope of the troubleshooting section, contact Victaulic for
assistance.
21
REV_C
TM-RG3212
/ Operating and Maintenance Instructions Manual
