Applies to: 08510

REED RG26 Series Roll Groover - ICON

Mtengo wa RG26
Includes: RG26S and discontinued RG26CU
Operation, Maintenance and Service Instructions
RG26 Series Roll Groover

RG26 Series Roll Groover

CHOFUNIKA KUDZIWA: Read and fully understand this operating manual before operating or performing maintenance on the RG26 Roll Groover. It is essential to properly train and review with operating personnel to become familiar with the tool’s operations, applications, and limitations to prevent possible bodily injury and property damage. All personnel should be aware of the tool’s specific hazards.
REED RG26 Series Roll Groover
Kufotokozera ndi Mafotokozedwe

The REED RG26S Roll Groover is designed to form standard rolled grooves in steel, stainless steel, PVC, and aluminum pipe in 2-6” schedule 10, and 2-3” schedule 40. The REED RG26CU Roll Groover (discontinued) is designed to form standard rolled grooves in 2” to 6” copper tubing.
The groove is formed by a groove roll which is fed into the pipe wall. The pipe is supported 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 ease of use and portability, the RG26 Series Roll Groover provides a practical solution for manual on-site and in-place roll grooving.


Capacity RG26S……………………………2” – 6” Schedule 10 2” – 3” Schedule 40
Capacity RG26CU…………2” – 6” K,L,M, and DWV Copper
Depth Adjustment ………………………Adjusting Nut, Depth Gauges (included), and Jam Nuts
Actuation ……………………………Crank Nut and Ratcheting Crank Handle (included)
Weight ………………………………………………..21 lbs (9.55 kg)

Chalk Analimbikitsa

  • REED R450+ Tripod, Field Pipe Vise, CV6 bench mounted chain vise, or #64 yoke pipe vise (when not using in-place)
  • REED Pipe Jack (for long pipe lengths)

Important – Before Operating
Before operating the RG26 Roll Groover, read and follow all safety information in the User Manual.

Chidziwitso cha chitetezo

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.
Impact injuries, including broken bones if roll groover or workpiece falls.
Wear eye protection to prevent eye injuries by thrown workpiece or workpiece chips.REED RG26 Series Roll Groover - ICON

Kutetezeka Kwakukulu
Read and follow the safety information and instructions in the user manual. Store the user manual in a clean area and always at a readily available location.
Chitetezo chaumwini

  1. 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 clothes, neckties, rings, watches or other jewelry.
  2. Keep good footing and balance. Do not overreach.
    Keep hands and tools away from moving parts of the roll groover.

Chitetezo Chantchito

  1. Keep children and visitors out of the work area. If visitors must be in the area, keep them far away from the machine. Keep working environment clear at all times.
    When using this tool at elevated  locations or for overhead grooving, keep area below clear of other personnel.
  2. Keep work area clean, uncluttered and well lighted.
  3. Keep floors dry and free of slippery materials.

Roll Groover Safety

  1. When operating, keep hands away from grooving rolls.
    Fingers could get caught between the groove roll and drive shaft.
  2. When setting up and using, make sure the Roll Groover is secured to the pipe. Carefully follow set-up instructions.
  3. Do not use the Roll Groover for any other purpose than roll grooving pipe and tubing.
  4. Do not use excessive force in turning the feed nut. Follow operating instructions.
  5. Be sure pipe or tubing is secure in a pipe vise or securely hung in-place. Support long lengths of pipe or tubing with a pipe jack.
  6. Use recommended accessories. Use of other accessories may increase the risk of injury. Refer to the recommended accessories section in the front of this manual.

Kukonza Makina

  1. Inspect the equipment. Prior to using the tool, check the movable parts for any obstructions. Be certain that all tool parts are properly installed and secured
  2. Inspect groove roll and drive shaft. Replace when necessary.
  3. Lubricate with multi-purpose grease through the three grease fittings.
  4. Keep the ratcheting crank handle dry and clean.

This tool is designed for manual operation only. This tool is not to be driven by any power drive devices.
The use of power drive devices may present risk to the operator and cause damage to the tool.
When using this tool at elevated locations, the area below must be kept clear of other personnel.
RG26 tools are individually packaged in heavy cardboard containers. Upon receipt, check to be certain the tool is the correct model and all necessary parts are included.
Included should be:(1). RG26 tool
(1). Set of depth gauges (attached to tool)
(1). Ratcheting crank with 1 1/4” socket
(1). User Manual
If incomplete, contact your REED Distributor or Reed Manufacturing.
Tube/Pipe Preparation
For satisfactory tool operation, the following tube/pipe preparation tips should be carefully observed:

  1. Tube/pipe must be square cut. Do not use a cutting torch.
    Zindikirani: When adjusting for roll groover depth, the trial groove pipe should not have a large burr protruding inward. Use a suitable tool for deburring the pipe or tubing. After the groove depth has been set, deburring of the pipe is not required.
  2. The end of the tube/pipe, both inside and out, should be cleaned of coarse scale, dirt or other materials which might interfere with or damage the grooving rolls or distort the groove. Large weld beads are to be ground to permit smooth rolling operation.

Kukhazikitsa kwa Pipe
The RG26 is an orbital roll grooving tool which rotates around a pipe held stationary. The pipe may be held in a pipe vise during grooving. The RG26 also grooves piping in a depressurized, in-place piping system.
Pipe Vise Set-Up
The choice of grooving location in the shop or field should take into account the following factors:

  • Pipe handling requirements
  • Working space requirements for the tool and pipe
  • Anchoring requirements for the pipe vise


  1. Securely mount pipe vise (chain type) on a secure stand or workbench. Pipe vise should be mounted flush with or overhang the edge of the stand or workbench so, when
    the tool is mounted on the pipe, the tool will rotate freely around the pipe and not be obstructed by the bench or stand.
  2. Secure pipe in pipe vise, anchored to hold securely the weight of the tool (21 lbs.) 9.5 kg. Position the pipe to overhang the pipe vise approximately 5 – 12” (127 – 305 mm) so the tool can rotate in an unobstructed manner. (See Fig. 1.)

REED RG26 Series Roll Groover - FIG 7

Groove-In-Place Set-Up
Previously installed piping may be grooved with the RG26, providing the piping is securely supported.
ZINDIKIRANI: Pipe hangers must be able to accommodate the weight of the 21 lb. (9.55 kg) RG26 plus the manual effort to operate the tool (approximately 20 ft.-lb. torque) during
Piping systems must always be depressurized and drained before attempting disassembly.
Failure to do so could result in serious injury, property damage, joint leakage or joint separation.
Mounting Tool

  1. Retract the upper roller fully by turning the brass feed nut counterclockwise.
  2. With the hex drive nut down, insert the nose of the body into the pipe end. Push the tool onto the pipe until the pipe end stops rest against the pipe end. (See Fig 2.)
  3. Draw rolls together by turning the brass feed nut clockwise. Continue tightening until the grooving rolls are in light, but firm contact with the pipe.

REED RG26 Series Roll Groover - FIG 1Adjusting Groove Depth

The Depth Stop Collars must be adjusted for each tube/ pipe size or change in wall thickness. Groove diameter, identified as the “C” dimension for each tube/pipe size, is
listed under Standard Roll Groove Specifications – Steel and Other IPS Pipe. For convenience, a “C” Diameter Chart for the most common pipe sizes is also on the tool.

  1. Unlock the depth stop collars by turning them in opposite directions until they are separated.
  2. Locate the groove depth gauge attached to the tool which is identified with the pipe size to be grooved. Turn the depth stop collar, closest to the trunnion, until the distance between the collar and the top of the trunnion is equal to the groove depth gauge thickness. Use the groove depth gauge like a feeler gauge. (See Figure 3.)REED RG26 Series Roll Groover - FIG 2
  3. Turn the second collar until both are locked firmly against one another, maintaining the gap set with the feeler gauge. Replace the depth gauges back into the holder.
  4. Prepare a trial groove by tightening the brass feed nut the recommended turn increment, and then by turning the crank nut clockwise until the roll groover has made
    one full revolution around the pipe. (See Fig. 4.)REED RG26 Series Roll Groover - FIG 3
  5. Continue turning the feed nut and cranking the tool around the pipe. Once the jam nuts rest against the trunnion, continue to crank the tool around for one more revolution. (See Fig. 5.)REED RG26 Series Roll Groover - FIG 4Zindikirani: Trial groove pipe should be deburred for best results. A burr on the inside of the pipe will raise the pipe away from the drive shaft, causing inaccurate set-up adjustment. After proper groove depth has been verified by the trial groove, deburring of the following pipes is not required. See Step 1 of “Tube/Pipe Preparation”
  6. After a trial groove is prepared and the tool is removed from the pipe, carefully check the groove diameter (“C” dimension), a charted under Standard Roll Groove Specifications – Steel and Other IPS Pipe, page 8, and Drawn Copper Tubing Groove Specifications, page 9. The “C” dimension is best checked with a pipe tape. It may also be checked with a dial caliper or narrow land micrometer at two locations, 90° apart, around the groove. The average reading must equal the required Groove Diameter.
    The “C” Dimension (groove diameter) must always conform to specifications under Standard Roll Groove Specifications, page 9, to ensure proper joint performance.
    Failure to do so could result in personal injury, property damage, improper installation, joint leakage or joint failure.
  7.  If groove diameter (“C” dimension) is not within tolerance, adjust the depth stop collars to obtain the proper dimension. To adjust for a smaller groove diameter, turn the depth stop collars counterclockwise. To adjust for a bigger groove diameter, turn collars clockwise. A quarter turn either way will change the groove diameter by .017” (.068” per full turn).
  8. Prepare another trial groove and check the groove diameter again. Repeat Steps 6 and 7 until groove diameter is within specification.

Grooving Operation

ZINDIKIRANI: REED RG26 tool is designed only for roll grooving tube/pipe of the appropriate sizes. Grooving of tube/pipe other than that recommended may not produce grooves of proper tube/pipe end configuration or groove dimensions necessary for joining.
Before Grooving:

  • Review Safety Precautions before operating the tool.
  • Check to be certain tube/pipe has been prepared properly as detailed in Tube/Pipe Preparation.
  • Check to be certain pipe is properly supported as detailed in Pipe Set-Up.
  • Check to be certain the tool is properly mounted on the pipe. See Mounting Tool.
  • Check to be certain the depth stop collar is adjusted correctly. See Adjusting Groove Depth.

Keep fingers, clothes, hair and objects other than tube/ pipe away from the rotating tool. Use safety glasses, hardhat and appropriate footwear. Failure to do so could result in personal injury.

  1. Advance the feed by turning the feed nut clockwise by the amount show in Table 1. Feed rates for the RG26 vary depending on material and pipe wall thickness.
    Zofunika Wall Thickness inches/(mm) Turns of Feed Screw to Advance the Feed
    Chitsulo ndi Chitsulo chosapanga .135 mpaka .216
    (3.43 mpaka 5.49)
    Kutembenuka kwa 1/4
    .120 mpaka .134
    (3.05 mpaka 3.40)
    Kutembenuka kwa 1/3
    .065 mpaka .119
    (1.65 mpaka 3.02)
    Kutembenuka kwa 1/2
    Aluminum  and Copper .135 mpaka .216
    (3.43 mpaka 5.49)
    Kutembenuka kwa 1/3
    .120 mpaka .134
    (3.05 mpaka 3.40)
    Kutembenuka kwa 1/2
    .065 mpaka .119
    (1.65 mpaka 3.02)
    Kutembenuka kwa 2/3
    PVC .154 mpaka .258
    (3.91 mpaka 6.55)
    Kutembenuka kwa 3/4

    Table 1 – Feed Rates
    Zindikirani: Over-tightening (overfeeding) will result in shortened bearing life and other tool damage. Over or under-tightening could result in the tool “walking” off the pipe and eventually becoming disengaged from the pipe.

  2. Place the ratcheting crank handle onto the drive hex.
    Crank the drive hex nut clockwise until the tool travels one full turn around the tube/pipe.
  3. Advance the feed by turning the brass feed nut clockwise by the amount show in Table 1. Crank the tool another full turn around the pipe.
  4. Continue grooving by advancing the feed (Table 1) and cranking the groover around the tube/pipe until the depth stop collar comes in contact with the trunnion. At this
    point, the brass feed nut can no longer be tightened. Crank the tool at least one more full turn around the tube/ pipe after full groove depth is achieved.
  5. After dismounting tool from pipe (see below), check groove depth to ensure groove meets groove depth specification. NOTE: Groove Diameter should be correct for the diameter and wall thickness of tube/pipe for which it was set under Groove Diameter Stop Setting procedures. Groove diameter should be checked periodically and adjusted as necessary.

Dismounting The Tool

  1. Crank the tool until the drive hex is located in the down position.
  2. Turn the feed nut counterclockwise to retract the upper roll arm to the full open position.
  3. Lift the tool and remove it from the pipe. (See Fig. 6.)


  1. Keep tool clean for best and safest performance.
  2. kondomu:
    a) After approximately eight hours of operation, grease the bearings at the three grease fittings on the tool. Use a No. 2 EP Lithium base grease.
    b) Weekly apply a light oil (SAE 10W-30 or equivalent) to the threads where the feed screw passes through the feed nut. Also, oil should be applied to the shoulder bolts
    which hold the roll arm to the body, the feed screw to the roll arm, and at the trunnion pivots.REED RG26 Series Roll Groover - FIG 5

Kusaka zolakwika

vuto Chifukwa Anakonza
Unable to close rolls onto pipe. Improper adjustment
of depth stop collars.
Turn depth stop collars counterclockwise, away from trunnion and reset depth stop collar, as described in “Adjusting The Groove Depth.”
Groove too deep (groove
diameter too small).
Improper adjustment of depth stop collars. Reset depth stop collars as described in “Adjusting Groove Depth.”
Groove too shallow (groove diameter too large). Improper adjustment
of depth stop collars.
Reset depth stop collars
as described in “Adjusting Groove Depth.”
Tool does not move when cranked. Rust or dirt has
built up on lower roll.
Worn grooving rolls.
Remove accumulation from lower roll with stiff wire brush.
Inspect lower roll for worn knurls, replace if worn.
Tool wobbles during cranking. Variation in pipe
wall thickness or inadequate feed rate.
Advance the feed at the rates described in Table 1.
Tool won’t track (walks or falls off pipe). Tool is not correctly positioned on pipe. Pipe end out of square.
Excessive fall off at pipe end from use of pipe cutter with improper feed rate. Tool crank turned in wrong direction.
Reposition tool with pipe end stops against pipe.
Trim pipe to square pipe end (see tube/pipe preparation). Advance the feed at the rates described in Table 1.
Turn feed and crank nuts clockwise.
Tool won’t groove tube/pipe. Tube/pipe beyond tool’s wall thickness capability.
Tube/pipe material excessively hard.
See rating charts.
Use recommended pipe material.

RG26S Roll Groove Diameter Specifications

+ .030
+ .030
O.D. TOL. (+.000)
2 2. 1. 0. 2.250 -.015
2-1 / 2 3. 1. 0. 2.720 -.018
3 od 3.00 1. 0. 2.845 -.018
3 3.50 1. 0. 3.344 -.018
3-1 / 2 4.00 1. 344 3.834 -.020
4 4.50 1. 0. 4.334 -.020
4-1 / 2 5.00 1. 0. 4.834 -.020
5 6. 1. 0. 5.395 -.022
6 od 6.00 1. 0. 5.830 -.022
6 7. 1. 0. 6.455 -.022

RG26CU Roll Groove Diameter Specifications (Discontinued)

2 2.125 0.61 0.3 2.029
2 1 / 2 2.625 0.61 0.3 2.525
3 3.125 0.61 0.3 3.025
4 4.125 0.61 0.3 4.019
5 5.125 0.61 0.3 4.999
6 6.125 0.61 0.3 5.999

REED RG26 Series Roll Groover - FIG 6

mbali List

No.  Kufotokozera   RG26S RG26CU08510 08512
Code Code 
RG26S RG26CU 08510 08512
Code Code
1 Thupi Lalikulu 98520 98565
2 Goli 98521 98521
3 Crank Assembly 98522 98522
4 Tsitsani Shaft 98523 98523
5 Drive Shaft Gear 98524 98524
6 Crank Shaft Gear 98525 98525
7 tiyipukuse kutsinde 98526 98526
8 Feed screw 98527 98527
9 Groove Roll Shaft 98528 98528
10 Groove Roll 98529 98550
11 Mbale Mbale Assembly 98542 98542
12 Jam Nut 98531 98531
13 Drive Roll 98532 98551
14 Crank Nut 98534 98534
15 Feed Nut 98535 98535
16 Trunnion 98536 98536
17 Trunnion Plate 98537 98537
18 Depth Gauge Set 98549 98566
19 Dinani batani 98538 98538
20 Knurled Pin 98539 98539
21 Sungani 98540 98540
22 Kutulutsa Mkuwa 40461 40461
23 Kutulutsa Mkuwa 40473 40473
24 Washer Large 40462 40462
25 Washer Small 40463 40463
26 Groove Pin 30235 30235
27 Kupaka Mafuta 40338 40338
28 Kubala Zipangizo 40459 40459
29 Kubala Zipangizo 40460 40460
30 Singano wodzigudubuza Kuchitira 40458 40458
31 Pereka Pin 30232 30232
32 Pereka Pin 30233 30233
33 Flat Head Socket Screw 30216 30216
34 Pini ya Dowel 30218 30218
35 Kusunga mphete 30219 30219
36 Socket Set Screw 30224 30224
37 Chomanga Pamapewa 30228 30228
38 Chomanga Pamapewa 30229 30229
39 Chomanga Pamapewa 30227 30227
40 Tsekani Nut 30231 30231
41 Hex Machine Screw 30225 30225
42 Zitsulo Mutu kapu kagwere 30230 30230
43 runnion/Feed Nut Assembly 98568 98568

Zina Zowonjezera

REED RG26 Series Roll Groover - FIG 7

Chitsimikizo cha REED

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 WARRANTY FOR MERCHANTABILITY OR FITNESS FOR A PARTICULAR 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.
Kuyambira December 1,
Chenjezo: 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
Fakisi: + 1 814-455-1697

1425 West 8th Street Erie, PA 16502 USA Phone: 800-666-3691 or +1 814-452-3691
Fakisi: + 1 814-455-1697

Zolemba / Zothandizira

REED RG26 Series Roll Groover [pdf] Buku Logwiritsa Ntchito
RG26 Series Roll Groover, RG26 Series, Roll Groover, Groover


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