RIDGID 25638 Model 975 Combo Roll Grooving Machine Guide

RIDGID 25638 Model 975 Combo Roll Grooving Machine Guide
975 Combo Roll Groover
Table III. Copper Roll Groove Specifications
1
2
Nom.
Size
Inches
Tubing Outside
Diameter O.D.
2"
21/2"
3"
4"
5"
6"
8"
Basic
2.125
2.625
3.125
4.125
5.125
6.125
8.125
Tolerance
±0.002
±0.002
±0.002
±0.002
±0.002
±0.002
+0.002/-0.004
3
A
Gasket
Seat
A
±0.03
0.610
0.610
0.610
0.610
0.610
0.610
0.610
4
B
Groove
Width
+.03
–.000
0.300
0.300
0.300
0.300
0.300
0.300
0.300
5
C
Groove
Dia.
+.00
–.02
2.029
2.525
3.025
4.019
5.019
5.999
7.959
6
D
Groove
Depth
Ref.1
0.048
0.050
0.050
0.053
0.053
0.063
0.083
7
T
Min.
Allow.
Wall
Thick.
DWV
0.065
DWV
DWV
DWV
DWV
DWV
8
Max.
Allow.
Flare
Dia.
2.220
2.720
3.220
4.220
5.220
6.220
8.220
1. Nominal Groove Depth is provided as a reference dimension. Do not use groove depth to determine groove acceptability.
Troubleshooting
SYMPTOM
POSSIBLE REASONS
SOLUTION
Roll groove too narrow or
too wide.
Grooving roll and/or driving shaft worn.
Replace grooving roll and/or drive shaft.
Rolled groove not perpendicular to pipe axis.
Pipe length not straight.
Use straight pipe.
Pipe end not square with pipe axis.
Cut pipe end square.
Pipe will not track while
grooving/Groover will not
track on pipe while grooving.
Pipe and drive shaft not parallel.
Adjust stand to make pipe parallel.
Pipe axis not offset 1/2 degree from driving roll axis.
Offset pipe 1/2 degree.
Driving roll knurl plugged or worn flat.
Clean or replace drive roll.
Feedscrew not tight.
Tighten feedscrew with ratchet for every
revolution as per directions.
Turning ratchet wrong direction.
Turn ratchet in proper direction.
Inside of pipe has too much scale.
Clean inside of pipe.
Excessive weld seam.
Grind weld seam flush 2" from end of pipe.
Not applying pressure to pipe.
Apply pressure to pipe. (See Figure 10.)
Pipe end not square/deburr.
Properly prep end of pipe.
Feedscrew too tight.
Only advance feedscrew in 1/4 turn increments.
Pipe and drive shaft not parallel.
Adjust stand to make pipe parallel.
Feedscrew too tight.
Only advance feedscrew 1/4 turn.
Pipe flared at grooved end.
20
Ridge Tool Company
975 Combo Roll Groover
Troubleshooting (continued)
SYMPTOM
POSSIBLE REASONS
SOLUTION
Pipe drifts back and forth
on driving roll axis while
grooving.
Pipe length not straight.
Use straight pipe.
Pipe end not square with pipe axis.
Cut pipe end square.
Pipe rocks from side to
side on driving roll while
grooving.
Pipe stand is too close to end of pipe.
Move pipe stand in to match set-up Instructions.
Pipe end flattened or damaged.
Cut off damaged pipe end.
Hard spots in pipe material or weld seams harder
than pipe.
Use different pipe.
Grooving roll feed rate too slow.
Feed grooving roll into pipe faster.
Power drive speed exceeds 57 RPM.
Reduce speed to 57 RPM.
Pipe supports stand not in correct location.
Position pipe stand rollers correctly.
Maximum pipe wall thickness exceeded.
Check pipe capacity chart.
Pipe material too hard.
Replace pipe.
Adjustment screw not set.
Set depth.
Power drive does not supply required minimum
torque.
Use RIDGID No. 300, 38-RPM Power Drive.
Groover will not roll
groove to required
diameter.
Maximum pipe diameter tolerance exceeded.
Use correct diameter pipe.
Depth adjustment screw not set correctly.
Pipe too hard.
Adjust depth setting.
Use different pipe.
Pipe slips on driving roll.
Grooving roll feed rate too slow.
Feed grooving roll into pipe faster.
Driving roll knurls plugged with metal or worn flat.
Clean or replace driving roll.
Power drive does not supply minimum required
torque.
Use RIDGID No. 300, 38 RPM Power Drive.
Chuck not closed on drive shaft flats.
Close chuck.
Pipe support stand not properly set up.
Properly set up stands.
Groover will not roll
groove in pipe.
Groover will not rotate
pipe while grooving.
Pipe rises or tends to tip
Groover over backwards.
Ridge Tool Company
21
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