Forming The Roll Groove - RIDGID 916 Operator's Manual

916 Roll Groover
Pipe Diameter Reference
Pipe Schedule 10
Diameter
No. of Turns
6
4
3 1 /
2
3
2 1 /
2
2
1 1 /
2
1 1 /
4
Chart B – Pipe Diameter and Turns
NOTE! Additional adjustment may be necessary to
achieve proper depth. Chart above is for refer-
ence only.

Forming the Roll Groove

Pipe wall thickness cannot exceed the max-
CAUTION
imum wall thickness specified in the "Pipe Maximum and
Minimum Wall Thickness" Table II .
1. Flip the directional switch from OFF and step on
power drive or threading machine foot switch while
applying slight downward pressure on the feed handle.
Figure 12 – Forming the Roll Groove
If pipe begins to "walk off" the drive roll,
WARNING
stop the machine and check "Pipe Set-Up" procedure.
2. To help prevent "walking", apply pressure on pipe with
right hand, away from operator when running the
power drive or machine in FORWARD mode, toward
operator when running the power drive or machine in
REVERSE mode.
NOTE! If power source runs in FOR position, push the
pipe away from operator. If power source runs in
REV, pull the pipe towards operator.
3. With pipe tracking properly and backside of pipe
against drive roll flange, step on foot switch and con-
10
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Schedule 40
Minimum Minimum
No. of Turns
2 1 / N/A
2
2 3 / N/A
4
2 3 / N/A
4
2 1 / 3 /
2 4
2 1 / 1
2
2 1 / 1 1 /
2 2
2 1 / 1 3 /
2 4
2 3 / 1 3 /
4 4
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tinue downward pressure until feed handle rests on
the base of 916 Roll Groover.
NOTE! Do not overfeed upper groove roll. Maintain
constant downward pressure, pausing to allow
one pipe revolution before increasing down-
ward pressure.
4. After feed handle comes to rest on base of 916 Roll
Groover allow two (2) complete pipe revolutions to
even out groove depth.
5. Release foot switch and slip directional switch to
OFF.
6. Pull feed handle upward and check groove diameter
(See Table I) .
NOTE! Two measurements 90 degrees apart should
equal the "C" dimension or measure with a PI
tape.
7. To decrease groove diameter, tighten depth adjust-
ment screw. To increase groove diameter, loosen
depth adjustment screw.
NOTE! Once groove depth is determined, additional
grooves will have the same depth.
8. Periodically check groove depth with a "pi" or diam-
eter tape. Coupling should fully seat in the groove
without binding or excessive play.
NOTE! Pipe exceeding Fitting Manufacturer's "Maximum
Flare Specifications" may prevent assembly of the
couplings pad to pad, allowing possible pipe
separation that could result in property damage.
Also, joint leakage may result due to excessive
gasket distortion/damage. Check to Fitting Man -
ufacturer's specifications.
Model No. 916 Roll Grooving Tips
1. If pipe tends to walk off drive roll, increase offset
dimension.
2. If drive roll flange shaves pipe end, decrease offset
dimensions.
3. If pipe end flare is excessive, lower pipe end to level
with roll groover.
4. If pipe wobbles and/or walks off drive roll, raise pipe
end to level with groover.
5. Short lengths of pipe (under three feet) may require
slight pressure to maintain the
dimension.
NOTE! When grooving pipe longer than 36" on Models
300 Compact or 1822-I Threading Machines
that are mounted on folding stands, adjust the
pipe to the same angle of the 916's drive shaft
(Figure 13) .
Ridge Tool Company
1 / degree offset
2
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