RIDGID 918-I Manual page 18

918-I Heavy Duty Roll Grooving Machine
Table III. Troubleshooting (cont.)
PROBLEM
Pipe raises or tends to
tip groover over back-
wards.
Pump not delivering oil,
cylinder does not
advance.
Pump handle operates
with "spongy" action.
Cylinder extends only
partially.
Table IV. Copper Roll Groove Specifications
1
Nom. Tubing Outside
Size Diameter O.D.
Inches
Basic
2 2.125
2 / 2.625
1
2
3 3.125
4 4.125
5 5.125
6 6.125
(1) Nominal groove depth is provided for reference only. Do not use groove depth to determine acceptability of groove.
16
CAUSE
Not level.
Pump release valve open.
Low oil in reservoir.
Dirt in pump body.
Seats worn or not seating.
Too much oil in reservoir.
Air trapped in system.
Too much oil in reservoir.
Pump reservoir is low on oil.
Depth adjustment set incorrectly.
2 3
A
Gasket
Seal
A
Tolerance +.03
–.00
±0.002 0.610
±0.002 0.610
±0.002 0.610
±0.002 0.610
±0.002 0.610
±0.002 0.610
Adjust stands to level pipe.
Close release valve.
Check oil level per instructions.
Have serviced by qualified technician.
Have serviced by qualified technician.
Check oil level per instructions.
Position ram lower than pump by tipping the ma-
chine on its side opposite the operator. Extend
and return the cylinder piston several times to per-
mit air to return to the pump reservoir.
Check oil level per instructions.
Fill and bleed system.
Follow depth adjustment instructions.
4 5
B C
Groove Groove Nominal
Width Dia. Groove
+.03 +.00 Depth
–.00 –.02 (1)
0.300 2.029 0.048
0.300 2.525 0.050
0.300 3.025 0.050
0.300 4.019 0.053
0.300 5.019 0.053
0.300 5.999 0.063
CORRECTION
6 7 8
D T
Min. Max.
Allow. Allow.
Wall Flare
Thick. Dia.
0.064 2.220
0.065 2.720
0.045 3.220
0.058 4.220
0.072 5.220
0.083 6.220
999-998-676.10_REV. C