REED RGCOMBO2 Combo Roll Groover User Manual

: June 3, 2024
: REED

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RGCOMBO2 Combo Roll Groover
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USER MANUAL

RGCOMBO2
COMBO ROLL GROOVER – PORTABLE

WARNING

|

Clothing/gloves can be caught in moving parts.
Fingers can be crushed.
• Keep hands away from grooving rolls.
• Use footswitch.
• Read user Manual.

---|---

REED MANUFACTURING

1425 West 8th Street Erie, PA 16502 USA Phone: 800-666-3691 or +1 814-452-3691 Fax: +1 814-455-1697 [email protected]
www.reedmfgco.com

RGCOMBO2 Roll Groover

Description and Specifications

Description

REED RGCOMBO2 Roll Groover is designed to form
standard rolled grooves in steel, stainless steel and
aluminum pipe, from 1 1/4” to 6”, in both Schedule 10 and
Schedule 40 pipe. The groove is formed by the groove roll
which is fed into the pipe wall. The pipe is supported on
the inside by a drive roll, which is relieved to permit pipe
wall deformation. The formed grooves comply with the
specifications required for mechanical coupling systems.
The only adjustment required is for the depth of the groove.
Designed for portability, the RGCOMBO2 Roll Groover is an
economical solution to the job-site grooving requirements
in mechanical piping system installations. Although the
RGCOMBO2 design has many improvements over similar
competitors’ models, it is not intended for production
work in the fab shop.
The RGCOMBO2 Roll Groover is designed for use with
REED #05301 5301PD Power Drive and other 38 RPM
power drives such as RIDGID® 300.

Specifications

Capacity………………….. 1 1/4” – 6” (32 – 152 mm) Schedule 10
1 1/4” – 6” (32 – 152 mm) Schedule 40
Depth Adjustment………………………………Adjusting Screw and
Included Depth Gauges
Actuation……………………Feed Screw (included ratchet wrench)
Weight………………………………………………………………….31.4 lbs.
Standard Equipment
Groove Roll………………………………………………………..1 1/4” – 6”
Drive Roll (Drive Shaft)……………………………………….1 1/4” – 6”
Feed Handle…………………………………Included Ratchet Wrench
Support Means………………………………..Included Support Rods

Recommended Accessories

REED Folding Pipe Jack
REED 2-71 Pipe Reamer
REED 5301PD Power Drive

Important – Before Operating

Before operating the RGCOMBO2 Roll Groover,
read and follow all safety information and instructions in
the user manual.

Safety Information

WARNING!
Serious injury can occur if all safety information and
operating instructions are not followed. These injuries
could include:
Loss of fingers, hands, arms or other body parts if clothing
or gloves get caught in moving parts;
Electrical shock or burns from contact with wires, motor or
other power drive parts;
Impact injuries, including broken bones if machine tips over
or workpiece falls.
Eye injuries, including being blinded by thrown workpiece
or workpiece chips.

General Safety

Read and follow the safety information and instructions
in the user manual.
Know the location and functions of all controls before
using the machine.

Footswitch Safety

The footswitch of the power drive is for your safety. It lets you shut off the motor by removing your foot. If clothing
should become caught in the machine, it could continue to windup, pulling you into the machine. Because the machine has high
torque, the clothing itself can bind around your arm or other body
parts with enough force to crush or break bones.

Power Drive Safety

Follow all of the power drive manufacturer’s safety
information and operating instructions.

WARNING!

Warning: Clothing/gloves can be caught in moving parts.
Fingers, hands, arms or other body parts can be crushed
or broken.

• Keep fingers away from grooving rolls.
• Use footswitch.
• Do not wear loose fitting gloves.
• Keep sleeves and jacket buttoned.
• Do not reach across machine because clothing can be drawn into moving parts.
• Operate machine from switch side only.
• Do not disconnect or block footswitch.
• Keep footswitch in working order.
• Make sure switch is in the “off” position before plugging in power cord.
• Make sure you can quickly remove your foot from the footswitch.

Personal Safety

Wear snug-fitting clothes, safety shoes, hard hat and
safety glasses. Cover up or tie up long hair. Do not
wear loose clothing, gloves, unbuttoned jackets, loose
sleeve cuffs, neckties, rings, watches or other jewelry.
Wear hearing protectors, ear plugs or muffs if you use
the machine daily or in a very noisy area.
Operate the power drive and roll groover from the side
with the power drive’s “REV/OFF/FOR” switch.
Keep good footing and balance. Do not overreach.
Do not operate machine when you are tired.

Caution: Keep hands clear of the Power Drive Hand Wheel/
Chuck and Roll Groove Handle area while the tool is in
operation.

Electrical Safety

Follow all of the power drive manufacturer’s electrical
safety information and operating instructions.

Work Area Safety

Keep children and visitors out of work area. If visitors
must be in area, keep them far away from the machine
and extension cords.
Keep work area clean, uncluttered and well lit.
Keep floors dry and free of slippery materials.
Clear machine and bench of all objects such as
wrenches or tools before turning machine on.

Roll Groover Safety

Keep hands away from grooving rolls. Fingers could
get caught between groove roll and drive shaft.
Set up Roll Groover on a flat, level surface. Be sure the
machine, stand and groover are stable and will not tip
over.
Be sure groover is properly secured to the power drive.
Carefully follow set up instructions.
Use only 38 RPM model power drives to drive
RGCOMBO2.
Do not use the RGCOMBO2 Roll Groover for any other
purpose than roll grooving pipe and tubing.
Do not use excessive force in turning feed screw. Follow
operating instructions.
Properly support pipe with pipe support.
Use recommended accessories. Use of other
accessories may increase the risk of injury. Refer to the
“Recommended Accessories” on page 2.

Machine Maintenance

Inspect groove roll and drive shaft. Replace worn rolls.
Lubricate with multi-purpose grease through the three grease
fittings (see Figure 1).
Keep Ratchet Wrench and Adjusting Screw knob dry and
clean. Keep free from oil and grease.
Follow all maintenance instructions provided with the power drive.

Powered Grooving Instructions

Assembling the RGCOMBO2 Roll Groover

1. Screw the two Support Rods into the sides of the main body of
the Roll Groover (Figure 1). Tighten the support rods securely
with a pipe wrench.
2. The included Ratchet Wrench may be inserted into the Feed
Screw after set-up.

Installing the Power Drive

Remove carriage or other attachments from the power drive.
Fully open front chuck of power drive.
Set the RGCOMBO2 on the power drive with the RGCOMBO2
Support Rods resting on the power drive carriage rails. Steady
the RGCOMBO2 with one hand.
With the other hand rotate the RGCOMBO2 drive shaft to
align the flats with the jaws on the power drive chuck.
Tighten power drive chuck on the RGCOMBO2 drive shaft.

Pipe Preparation

Pipe ends must be cut square. Do not use cutting torch.
Note: When adjusting roll groover depth, the trial groove pipe
should not have a large burr protruding inward. Use a REED
Model 2-71 Pipe Reamer for up to 2” pipe, or other suitable
tool to deburr trial groove pipe. After groove depth has been
set, deburring of pipe is not required.
Pipe out-of-roundness must not exceed the total O.D.
tolerance given in groove specifications, listed in Table 1.
Note: Determine out-of-roundness by measuring maximum
and minimum O.D. at 90° apart.
All internal or external weld beads, flash or seams must be
ground flush at least 2 inches back from pipe end.
Note: Do not cut or grind flats on gasket seat area.

Pipe Length

The chart below lists the minimum length of pipe to be grooved
and the maximum length to be grooved without a pipe jack.

Groovable Pipe Lengths – Inches

Nominal Minimum Maximum Length Pipe Size Length without pipe jack 1-1/4 8 36 1-1/2 8 36 2 8 36 2-1/2 8 36 3 8 36 3-1/2 8 36 4 8 36 4-1/2 8 32 5 8 32 6 O.D. 10 30 6 10 28

Pipe Set-Up

1. Pipe longer than the specified maximum lengths listed in the
above chart must be supported with a pipe jack. The pipe jack
should be located 3/4 of the pipe length from the roll groover.
Long lengths may require two jacks.
2. Raise the RGCOMBO2 Groove Roll by retracting the Feed
Screw. Install the pipe on the Drive Shaft and pipe jack.
3. Square the pipe and pipe jack to the roll groover making sure
the pipe is flush against the Roll Groover Cover Plate.
4. Level the pipe by adjusting the pipe jack height. Pipe axis
should be level with machine axis (Figure 2, page 8).
5. Square up the pipe tool.

Figure 1 – RGCOMBO2 Roll Groover

Note: All dimensions are in inches.

|

T

|

A

|

B

|

C

|

D

---|---|---|---|---|---|---

NOM. PIPE

SIZE

|

PIPE DIAMETER

|

MIN. WALL

|

GASKET SEAT

|

GROOVE WIDTH

|

GROOVE DIAMETER

|

NORMAL GROOVE DEPTH

O.D.

|

THK.

|

± .030

|

± .030

|

O.D.

|

TOL.

TAMAÑO NOM. DE TUBO

|

DIÁMETRO DE TUBO

|

MIN. ESP. DE PARED

|

ASIENTO DE JUNTA

|

ANCHURA DE

RANURA

|

DIÁMETRO DE RANURA

|

PROF.NOMAL DE

RANURA

D.E.

|

THK.

|

± .030

|

± .030

|

D.E.

|

TOL.

DIM. DU TUYAU

|

DIAMÈTRE DU TUYAU

|

MIN. DES PAROIS

|

MONTAGE DU JOINT

|

LARGEUR DE LA RAINURE

|

DIAMÈTRE DE LA

RAINURE

|

PROFONDEUR D’UNE RAINURE NORMALE

D.E.

|

ÉP.

|

± .030

|

± .030

|

D.E.

|

TOL.

1-1/4

|

1.660

|

.065

|

.625

|

.281

|

1.535 +.000

-.015

|

.063

1-1/2

|

1.900

|

.065

|

.625

|

.281

|

1.775 +.000

-.015

|

.063

2

|

2.375

|

065

|

.625

|

.344

|

2.250 +.000

-.015

|

.063

2-1/2

|

2.875

|

.083

|

.625

|

.344

|

2.720 +.000

-.018

|

.078

3 OD

|

3.00

|

.083

|

.625

|

.344

|

2.845 +.000

-.018

|

.078

3

|

3.50

|

.083

|

.625

|

.344

|

3.344 +.000

-.018

|

.078

3-1/2

|

4.00

|

.083

|

.625

|

.344

|

3.834 +.000

-.020

|

.083

4

|

4.50

|

.083

|

.625

|

.344

|

4.334 +.000

-.020

|

.083

4-1/2

|

5.00

|

.095

|

.625

|

.344

|

4.834 +.000

-.020

|

.083

5

|

5.563

|

.109

|

.625

|

.344

|

5.395 +.000

-.022

|

.084

6 OD

|

6.00

|

.109

|

.625

|

.344

|

5.830 +.000

-.022

|

.085

6

|

6.625

|

.109

|

.625

|

.344

|

6.455 +.000

-.022

|

.085

Table 2 – Feed Rates

Material

|

Wall Thickness inches/(mm)

|

Turns of Feed Screw to Advance the Feed

---|---|---

Steel and Stainless Steel Acero

|

.135 to .216 (3.43 to 5.49)

|

1/4 turn

.120 to .134 (3.05 to 3.40)

|

1/3 turn

.065 to .119

(1.65 to 3.02)

|

1/2 turn

1/2 de tour

Aluminum and Copper

|

.217 to .280

(5.51 to 7.1)

|

1/5 turn

1/5 de tour

.135 to .216

(3.43 to 5.49)

|

1/3 turn

1/3 de tour

.120 to .134

(3.05 to 3.40)

|

1/2 turn

1/2 de tour

.065 to .119

(1.65 to 3.02)

|

2/3 turn

2/3 de tour

Adjusting Groove Depth

Note: To insure the proper groove diameter, a trial groove should be performed.

Note: The Adjusting Screw must be set for each diameter of pipe.

1. Loosen Adjusting Screw (counterclockwise) enough to permit advancing of the Groove Roll down to the pipe.

2. Advance Feed Screw (clockwise) until Groove Roll is snug against top of pipe. Be sure Groove Roll contacts pipe and Adjusting Screw head does not bottom out.

Note: Trial groove pipe should be deburred for best results. Burr on inside of pipe will raise pipe away from drive shaft, causing inaccurate set- up adjustment. After proper groove depth has been verified by trial groove, deburring of following pipes is not required.

See Step 1 of “Pipe Preparation”.

3. Using the Depth Gauge labeled with the pipe size being grooved, place Depth Gauge under head of Adjusting Screw using the flat gauge slot.

4. Advance Adjusting Screw downward until underside of head touches Depth Gauge.

5. Remove Depth Gauge.

Note: It may be necessary to readjust Adjusting Screw after trial groove is made. Each 1/4 turn of Adjusting Screw will produce a .02” change in diameter of rolled groove. Tightening Adjusting Screw will increase groove diameter. Loosening Adjusting Screw will decrease groove diameter.

Forming the Groove

1. Place the power drive switch in the reverse (REV) position for counterclockwise rotation of the drive shaft and pipe.

2. Step on power drive footswitch and apply light pressure on pipe by advancing Feed Screw with the Straight Ratchet Wrench.

Warning: If pipe tends to “walk off” the tool.

a. Verify the pipe sits level, if not level then correct.

b. Verify the pipe rotates in the direction shown by the arrow etched on the Slide Block. (Figure 4)

c. Offset the far end of the pipe toward the operator’s side (the side with the power drive REV/ OFF/FOR Switch). A pipe offset of 1 inch per 10 ft. should work. (See Figure 2).

Caution: Keep hands clear of the Power Drive Hand Wheel/Chuck and Roll Groove Handle area while the tool is in operation.

3. With pipe tracking properly and end of pipe against cover plate, step on footswitch and begin advancing Feed Screw with Ratchet Wrench, allowing one complete rotation of pipe between strokes of Ratchet Wrench.

Caution: Do not overfeed. Allow one complete rotation of pipe between advances. See Table 2 for details.

4. Continue feeding until Adjusting Screw makes contact with the top surface of the Roll Groover. Allow pipe to make two complete rotations in bottomed position to insure uniform groove depth.

Warning: Do not tighten Feed Screw after Adjusting Screw bottoms out. Damage to the Adjusting Screw may result.

5. Release footswitch to stop machine, and begin retracting Feed Screw by turning Ratchet Wrench counterclockwise. Retract Feed Screw enough to remove pipe from machine.

6. Measure groove diameter at two places 90° apart. Both measurements should be within the listed tolerance of the dimension shown in Table 1.

7. To increase groove diameter tighten Adjusting Screw. To decrease groove diameter loosen Adjusting Screw. Each 1/4 turn of Adjusting Screw will change groove diameter by approximately .02”.

Note: Once groove depth has been set, following grooves will be same depth.

8. Periodically check groove depth with a mechanical coupling. The coupling should fully seat in the groove without binding or excessive play.

Roll Grooving Tips

1. If pipe tends to “walk off” drive shaft, increase lateral offset of pipe (see Figure 2 – Pipe Set-Up).

2. If Cover Plate shaves end of pipe, decrease lateral offset of pipe.

3. If pipe end flare is excessive, lower pipe end to level with roll groover.

4. If pipe wobbles and/or “walks off” Drive Shaft, raise pipe end to level with roll groover.

5. Short lengths of pipe (under three feet) may require slight hand pressure to maintain the lateral offset.

Adjusting Groove Depth

Note: To insure the proper groove diameter, a trial groove should be performed.
Note: The Adjusting Screw must be set for each diameter of pipe.
1. Loosen Adjusting Screw (counterclockwise) enough to permit
advancing of the Groove Roll down to the pipe.
2. Advance Feed Screw (clockwise) until Groove Roll is snug
against top of pipe. Be sure Groove Roll contacts pipe and
Adjusting Screw head does not bottom out.
Note: Trial groove pipe should be deburred for best
results. Burr on inside of pipe will raise pipe away from
drive shaft, causing inaccurate set-up adjustment. After
proper groove depth has been verified by trial groove,
deburring of following pipes is not required.
See Step 1 of “Pipe Preparation”.
3. Using the Depth Gauge labeled with the pipe size being
grooved, place Depth Gauge under head of Adjusting Screw
using the flat gauge slot.
4. Advance Adjusting Screw downward until underside of head
touches Depth Gauge.
5. Remove Depth Gauge.
Note: It may be necessary to readjust Adjusting Screw after
trial groove is made. Each 1/4 turn of Adjusting Screw will
produce a .02” change in diameter of rolled groove. Tightening
Adjusting Screw will increase groove diameter. Loosening
Adjusting Screw will decrease groove diameter.

Forming the Groove

1. Place the power drive switch in the reverse (REV) position for
counterclockwise rotation of the drive shaft and pipe.
2. Step on power drive footswitch and apply light pressure on
pipe by advancing Feed Screw with the Straight Ratchet
Wrench.
Warning: If pipe tends to “walk off” the tool.
a. Verify the pipe sits level, if not level then correct.
b. Verify the pipe rotates in the direction shown by
the arrow etched on the Slide Block. (Figure 4)
c. Offset the far end of the pipe toward the
operator’s side (the side with the power drive REV/
OFF/FOR Switch). A pipe offset of 1 inch per 10 ft.
should work. (See Figure 2).
Caution: Keep hands clear of the Power Drive Hand
Wheel/Chuck and Roll Groove Handle area while the tool
is in operation.

3. With pipe tracking properly and end of pipe against cover
plate, step on footswitch and begin advancing Feed Screw
with Ratchet Wrench, allowing one complete rotation of pipe
between strokes of Ratchet Wrench.
Caution: Do not overfeed. Allow one complete rotation
of pipe between advances. See Table 2 for details.
4. Continue feeding until Adjusting Screw makes contact with
the top surface of the Roll Groover. Allow pipe to make two
complete rotations in bottomed position to insure uniform
groove depth.
Warning: Do not tighten Feed Screw after Adjusting
Screw bottoms out. Damage to the Adjusting Screw
may result.
5. Release footswitch to stop machine, and begin retracting
Feed Screw by turning Ratchet Wrench counterclockwise.
Retract Feed Screw enough to remove pipe from machine.
6. Measure groove diameter at two places 90° apart. Both
measurements should be within the listed tolerance of the
dimension shown in Table 1.
7. To increase groove diameter tighten Adjusting Screw. To
decrease groove diameter loosen Adjusting Screw. Each
1/4 turn of Adjusting Screw will change groove diameter
by approximately .02”.
Note: Once groove depth has been set, following grooves
will be same depth.
8. Periodically check groove depth with a mechanical coupling.
The coupling should fully seat in the groove without
binding or excessive play.

Roll Grooving Tips

1. If pipe tends to “walk off” drive shaft, increase lateral offset
of pipe (see Figure 2 – Pipe Set-Up).
2. If Cover Plate shaves end of pipe, decrease lateral offset of pipe.
3. If pipe end flare is excessive, lower pipe end to level with roll groover.
4. If pipe wobbles and/or “walks off” Drive Shaft, raise pipe end
to level with roll groover.
5. Short lengths of pipe (under three feet) may require slight
hand pressure to maintain the lateral offset.

Figure 2 – Pipe Set-Up

Manual Grooving Instructions

1. Situation:
a. Pipe secured to vise: Securely mount pipe vise (chain
type) on a secure stand or workbench. Allow the pipe to
overhange the vise 5 to 12″ so the tool will rotate freely
and not contact the vise. (Figure 3)
b. Pipe installed (grooving in place): Verify the pipe hangers
can accommodate the weight of the RGCOMBO2 plus
the manual effort required to operate the tool.

2. Mounting the Tool
a. Retract the upper roller by turning the Feed Screw
counterclockwise.
b. Insert the Drive Shaft into the pipe with the Groove Roll on
the outside.
c. Draw the rolls closer together by turning the Feed Screw
clockwise until the Driveshaft and Groove Roll contact the
pipe lightly.

3. Set Groove Depth
Note: To insure the proper groove diameter, a trial groove should
be performed.
Note: The Adjusting Screw must be set for each diameter of pipe.
a. Loosen Adjusting Screw (counterclockwise) enough
to permit advancing of Groove Roll down to pipe.
b. Advance Feed Screw (clockwise) until Groove Roll
is snug against top of pipe. Be sure Groove Roll contacts
pipe and Adjusting Screw head does not bottom out.
Note: Trial groove pipe should be deburred for best results.
Burr on inside of pipe will raise pipe away from drive shaft,
causing inaccurate set-up adjustment. After proper groove
depth has been verified by trial groove, deburring of following
pipes is not required. See Step 1 of “Pipe Preparation”.
c. Using the Depth Gauge labeled with the pipe size being
grooved, place Depth Gauge under head of Adjusting Screw
using the flat gauge slot.
d. Advance Adjusting Screw downward until underside
of head touches Depth Gauge.
e. Remove Depth Gauge.

Note: It may be necessary to readjust Adjusting Screw
after trial groove is made. Each 1/4 turn of Adjusting Screw
will produce a .02” change in diameter of rolled groove.
Tightening Adjusting Screw will increase groove diameter.
Loosening Adjusting Screw will decrease groove diameter.

4. Forming the Groove
a. Advance the Feed Screw the amount specified in Table 1.
b. Using the Socket Extension and Bent Handle Ratchet, turn
the Crankshaft so the pipe feeds into the tool as indicated by
the arrow. Notice the etched arrows on the Crankshaft and
also the Pipe Direction arrow on the Slide Block (Figure 4).
c. Make one complete revolution of the tool around the pipe
before advancing the Feed Screw again.
d. Continue grooving until you reach the desired depth. (The
Adjusting Screw can limit Feed Screw advance see the
section on Adjusting Groove Depth for details).

5. Dismount the tool, retract the Feed Screw fully, lift and
remove the tool from the pipe.

Figure 3. Pipe Set-up

Figure 4. Pipe Direction on Slide Block

Parts Breakdown

Models manufactured before
October 2021 use 98590
and 99216. Check #42 tag for
letter A, B or C in Serial
Number. Can be retrofit at
REED. Call for details

Parts List

On Location at Wm T. Spaeder Company, Erie, PA 22 0722-59200

RGCOMBO2 Roll Groover

0722-59200 23

RGCOMBO2 Roll Groover

REED Warranty

REED will repair or replace tools with any defects due to faulty materials or workmanship for one (1) year or five (5) years from the date of purchase, as applicable. This warranty does not cover part failure due to tool abuse, misuse, or damage caused where repairs or modifications have been made or attempted by non REED authorized repair technicians. This warranty applies only to REED tools and does not apply to accessories. This warranty applies exclusively to the original purchaser.

One (1) year warranty: Power units for pneumatic, electric, hydraulic and battery-powered tools have a one year warranty. This includes, but is not limited to REED pumps, universal pipe cutter motors, power drives, power bevel tools, threading machines, cordless batteries and chargers. Five (5) year warranty: Any REED tool not specified under the one (1) year warranty above is warrantied under the REED five (5) year warranty. NO PARTY IS AUTHORIZED TO EXTEND ANY OTHER WARRANTY. NO WARRANTY FOR MERCHANTABILITY OR FITNESS FOR A PAR TICULAR PURPOSE SHALL APPLY. No warranty claims will be allowed unless the product in question is received freight prepaid at the REED factory. All warranty claims are limited to repair or replacement, at the option of REED, at no charge to the customer. REED is not liable for any damage of any sort, including incidental and consequential damages. This warranty gives you specific legal rights, and you may also have other rights which vary by state, province or country.

Warranty Effective December 1, 2018

CAUTION: Safety reminders for a professional approach to tool selection and use.

• Proper maintenance of tools is critical to personal safety; worn tools should be repaired or replaced as required.

• Select the correct tool and tool size for the job. Never modify a tool to exceed its intended capacity.

• We recommend the Hand Tools Institute booklets for additional safety tips. Booklets are available from REED or the Hand Tools Institute.

1425 West 8th Street Erie, PA 16502 USA Phone: 800-666-3691 or +1 814-452-3691 Fax: +1 814-455-1697 [email protected]

www.reedmfgco.com

0722-59200 0722-59200