RIDGID 918I User Manual
Page 5
Ridge Tool Company
4
915, 916, 918, 918I
Table 3. Troubleshooting
MALFUNCTION
PROBABLE CAUSE
CORRECTIVE ACTION
1. Rolled groove too narrow or too wide.
a. Incorrect size of grooving and driving rolls.
b. Mismatched grooving and driving rolls.
c. Grooving roll and/or driving roll worn.
a. Install correct size of grooving and driving rolls.
b. Match grooving and driving rolls.
c. Replace worn roll.
2. Rolled groove not perpendicular to pipe axis.
a. Pipe length not straight.
b. Pipe end not square with pipe axis.
a. Use straight pipe.
b. Cut pipe end square.
3. Pipe will not track while grooving.
a. Pipe not level.
b. Pipe axis not offset 1/2 degree from driving roll
axis.
c. Pipe axis not offset in the correct direction.
d. Groover not level.
e. Feed Screw not tight. (915)
a. Adjust stand to level pipe.
b. Offset pipe 1/2 degree. (See Fig.14, 15)
c. See set-up instructions.
d. Level groover.
e. Tighten feed screw with ratchet for every
revolution.
4. Pipe drifts back and forth
on driving roll axis while grooving.
a. Pipe length not straight.
b. Pipe end not square with pipe axis.
a. Use straight pipe.
b. Cut pipe end square.
5. Pipe rocks from side to side
on driving roll while grooving.
a. Pipe end fl attened or damaged.
b. Hard spot in pipe material or weld seams
harder than pipe.
c. Power drive rotating pipe too fast.
d. Pipe support stand rollers not in correct
location for pipe size.
e. Grooving Roll feed rate too slow. (915)
a. Cut off damaged pipe end.
b. Use high quality pipe of uniform hardness.
c. Reduce speed - shift to low speed or use
RIDGID 36 rpm 300, 535, 1233, 1224 or 1822
Power Drive.
d. Position pipe stand rollers for pipe size being
used.
e. Hand feed Grooving Roll into pipe faster.
6. Groover will not roll groove in pipe.
a. Pipe wall maximum thickness exceeded.
b. Wrong rolls.
c. Adjustment nut not set.
d. Power drive does not supply required
minimum torque.
a. Check pipe capacity chart.
b. Install correct rolls.
c. Set depth.
d. Use RIDGID No. 300, 535, 1224, 1233
or 1822 Power Drive.
7. Groover will not roll groove to specifi cation.
a. Maximum pipe diameter tolerance exceeded.
b. Mismatched grooving and driving rolls.
c. Pipe material too hard.
d. Adjustment screw not set. (915/916)
a. Use correct diameter pipe.
b. Use correct set of rolls.
c. Replace pipe.
d. Set depth.
8. Pipe slips on driving roll.
a. Driving roll knurling plugged with metal or worn
fl at.
a. Clean or replace driving roll.
9. Groover will not rotate pipe while grooving.
a. Grooving Roll hand feed rate too slow
(915/916).
b. Power drive does not supply minimum
required torque.
c. Chuck not closed on drive shaft fl ats.
a. Hand feed Grooving Roll into pipe faster.
b. Use RIDGID No. 300, 535, 1224, 1233 or
1822 Power Drive.
c. Close chuck.
10. Power Drive & Groover tend to tip.
a. Not enough support for pipe.
a. Use (2) pipe stands for all lengths over 36”.
11. Pump not delivering oil, cylinder does not
advance.
(918 only)
a. Pump release valve open.
b. Low oil in reservoir.
c. Dirt in pump body.
d. Seats worn or not seating.
e. Too much oil in reservoir.
a. Close release valve.
b. Check oil lever per instructions.
c. Requires service by qualifi ed technician.
d. Requires service by qualifi ed technician.
e. Check oil level per instructions.
12. Pump handle operates with “spongy” action.
(918 only)
a. Air trapped in system.
b. Too much oil in reservoir.
a. Position ram lower than pump by tipping the
machine on its side opposite the operator.
Extend and return the cylinder piston several
times to permit air to return to the pump
reservoir.
b. Check oil level per instructions.
13. Cylinder extends only partially.
(918 only)
a. Pump reservoir is low on oil.
b. Depth and adjustment set incorrectly.
a. Fill and bleed system.
b. Follow depth adjustment instructions.
14. Pipe end fl ares or forms bell shape when
grooving.
(918 only)
a. Operator is advancing grooving rolls too fast.
b. Pipe not level.
a. Slow down pumping action. Refer to proper
operating instructions.
b. Adjust stand to level pipe with groover.