Page 1

MODEL 126 & 126L POWER STRAP ROCKER CLAMP QUICK DIE CHANGE (QDC)

N118 W18251 Bunsen Drive Germantown,WI 53022 (262) 250-4410 • Fax (262) 250-4409

pfa-inc.com Copyright ©2018 PFA, Inc. All rights reserved. Reproduction or use in any manner of editorial or graphic content herein without the express written permission of PFA, Inc. is strictly prohibited. Every effort has been made to ensure the information within this publication is complete and accurate at the time of printing.

S3015 RC-425+425L REV A - 8/18


TABLE OF CONTENTS 1. Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. Operation – Die Exchange Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5. Seal Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6. Recommended Spare Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7. Drawing 126. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8. Drawing 126PD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 9. Drawing 126L. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 10. Drawing 126LPD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 11. DWG CLAMPSAFE-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 12. DWG CLAMPSAFE-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

pfa-inc.com MODEL 126 & 126L | ROCKER CLAMP | PAGE 3


DESCRIPTION 1. Please refer to drawings 126/126PD and 126L/126LPD. 2. The Model 126 and 126L are adjustable rocker clamps with the piston, Item 4 or 5, located at the rear of the clamp and pushing upward on clamp lid, Item 2 or 3. 3. The mechanical lock screw, Item 6 (126L only), is threaded into the lid. When screwed tightly against the base plate, Item 1 or 2, it retains clamping force when hydraulic pressure is shut off. Model 126 are non-locking and require hydraulic pressure to be maintained at all times. 4. Clamping height is provided as part of the part number when the clamp is ordered and achieved by various combinations of nose spacer bars, Item 3 or 4, attached to the clamp lid, Item 2 or 3, and clamp body spacers, Item 22, attached to the bottom of the clamp base plate, Item 1 or 2. 5. A compression spring, Item 6 or 8, located at the front of the clamp pushes against the lid and keeps the lid, Item 2 or 3, elevated when in the depressurized position. 6. Clamps are also available in a Dual Port configuration, where half the pistons are supplied with the front port and the other half by the rear port. This allows for separate hydraulics zone to power half of the clamp, which supports hydraulic redundancy for loss of hydraulics when only two clamps are used in a non-locking configuration. These clamps are specified as 126D.

INSTALLATION 1. Verify clamp opening is slightly greater than clamping height, but less than approximately .180”. See notes #3 and #6 on drawings 126 and 126L, as appropriate. 2. Verify that T-nuts are sized properly for T-slots and that Socket Head Cap Screws (SHCS) ¾”-10 are of the proper length. a. T-nut neck width should be approximately the width of the narrow part of the T-slot. b. The socket head cap screws (SHCS), when fully tightened, should be flush with or protrude below the bottom of the T-nut. If the screws are too long, they will drag on the bottom of the T-slot; if they are too short, strength will be compromised. 3. After ensuring proper T-nut engagement, set sliding gap by removing SHCS and applying removable thread locking compound (Locktite) to SHCS and reinserting into T-nut with clamp in T-slot. Tighten until the clamp is no longer moveable along T-slot, then back away slightly until the clamp slides snugly in the T-slot. The goal is to keep the gap minimal, yet have good movement of the clamp. See note #3 on Drawings 126 and 126L, as appropriate. 4. Attach hydraulic hoses. Do not overtighten fittings.

pfa-inc.com MODEL 126 & 126L | ROCKER CLAMP | PAGE 4


OPERATION – DIE EXCHANGE SEQUENCE Read the following procedure keeping in mind your company’s specific die exchange procedures. Then integrate the following steps to meet your specific requirements.

Note: For Locking (126L) clamps, hydraulics will need to be reconnected to reclamp, unlock, and release the clamps. PLEASE REFER TO 126 AND 126L DRAWINGS WHEN FOLLOWING THE SEQUENCE BELOW: 1. Jog ram to bottom of stroke and prepare for die removal. 2. For locked hydra-mechanical clamps (126L), connect hydraulics and apply 5000 psi hydraulic pressure to clamps. Press booster button (HM) to boost pressure.

Note: For locked clamps, the pressure used to release the clamps must be equal to or greater than the pressure used to actuate the clamps. 3. For locked clamps (126L), turn the lock screws, Item 20, counter-clockwise away from clamp base plates. 4. Release hydraulic pressure to unclamp die. 5. Move clamps away from die. 6. Jog ram to full up stroke. 7. Remove die. 8. Place next die on bolster. 9. Make required shut height adjustment and jog ram to bottom of stroke. 10. Move clamps to die ensuring a small gap is present (confirms correct clamp height to clamp plate thickness match).

CAUTIONS: • CLAMPING POINT MUST TOUCH DIE AND BE ENGAGED FULLY - AT LEAST 1/2” • LIMIT CLAMPING RANGE AS EXPLAINED ON DWG 126 AND 126L • THE CLAMP MUST BE PERPENDICULAR TO THE DIE – FULL NOSE SPACER BAR ENGAGEMENT. 11. Apply 5,000 psi hydraulic pressure to bolster mounted clamps then to ram mounted clamps. 12. For Locking Clamps (126L), set lock screws, Item 20, by manually turning clockwise – inward, until the lock screw is firmly in contact with clamp base plate. 13. For Locking Clamps (126L) only, release hydraulic pressure. 14. Examine all clamps for proper position and confirm that all clamps are engaged by attempting to move them manually. 15. Commence stamping when ready.

pfa-inc.com MODEL 126 & 126L | ROCKER CLAMP | PAGE 5


MAINTENANCE 1. Periodically check hoses for signs of wear. 2. Replace hoses if necessary. 3. Examine clamps for damage. 4. Check mechanical Lock Screws to make sure they turn easily. 5. Chase any damaged threads if necessary. 6. Check for hydraulic leaks. Tighten fittings or replace hoses as necessary. 7. Change seals as needed. See enclosed for seal replacement procedure. 6. If a pipe thread fitting is removed, apply new thread tape before reassembling fitting.

pfa-inc.com MODEL 126 & 126L | ROCKER CLAMP | PAGE 6


SEAL REPLACEMENT PROCEDURE CAUTION: WEAR SAFETY GLASSES PLEASE REFER TO DRAWINGS 126PD AND 126LPD AND DO THE FOLLOWING: 1. Unscrew Item 18 or 23, SHC Screw from Item 19 or 24,25,26, T-nut. This is easy to do while clamp is in a T-slot. 2. Move clamp to a suitable work area. 3. Turn clamp upside down and extend Item 5 or 7, Spring, with a small tool with a hook at the end and remove Item 11 or 14, Roll Pin. There are five Extension Springs. 4. Remove the four Rocker Screws, Item 14 or 17, Washer Alignment, Item 15 or 19, and Disc Spring, Item 16 or 20. 5. Separate the two clamp halves. Remove the five Compression Springs, Item 6 or 8, if necessary. 6. Extract the six Pistons, Item 4 or 5, if possible. If they are too recessed, apply slight hydraulic pressure to push the pistons out. Use extreme caution and cover the pistons with shop rags or other material. Dispose of oily rags in a proper manner. 7. Examine pistons and cylinders. Carefully remove metal shavings or other debris which may have caused the leak. Polish cylinder if necessary. 8. Apply Magnalube-G lubricant and replace O’ Rings, Item 7 or 9 and Backup Ring, Item 8 or 11. Make sure O’ Rings is nearest the bottom of piston. 9. Reassemble clamp in reverse sequence and be careful to observe the following: a. Be careful when inserting pistons. Avoid any sharp edges. b. Position Alignment Washer, Item 15 or 19 and Disc Spring, Item 16 or 20 as shown on drawing. c. It is critical that the upper clamp body is installed properly. (Observe Note 6 on Drawing RC-126PD or Note 5 on Drawing RC-126LPC.) d. Place a 1.5” steel spacer block under nose area (nose spacer bar and bottom spacer plate shim removed) when installing rocker screws. e. Apply removable thread locking compound (Locktite) to the Rocker Screws, Item 4. f.

Torque screws to specified torque. (See note 6 on Drawing RC-126PD or Note 5 on Drawing RC-126LPD.)

g. When re-installing clamp on press, refer to Installation Section B. h. If a pipe thread is removed, clean and reapply Teflon thread tape before reinstalling.

CAUTION: MAKE SURE BOTH ROCKER SCREWS ARE TIGHTENED EXACTLY THE SAME. IF NOT, ONLY ONE SCREW WILL CARRY THE LOAD AND CLAMP FAILURE MAY OCCUR. Note: Item 21, Rest Button, is present in 126L clamp bodies. It is used when the clamp is used in the Hydra-Mechanical configuration.

pfa-inc.com MODEL 126 & 126L | ROCKER CLAMP | PAGE 7


RECOMMENDED SPARE PARTS For Non-Locking Clamps (126) Please refer to parts contained in Seal Replacement Kit 126PD-SEAL and Refurbish Kit Part# 126PD-RFB as shown on drawing 126PD. For Locking Clamps (126L) Please refer to parts contained in Seal Replacement Kit 126LPD-SEAL and Refurbish Kit Part# 126LPD-RFB as shown on drawing 126LPD.

pfa-inc.com MODEL 126 & 126L | ROCKER CLAMP | PAGE 8


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply. 5

CLH + APPROX. .18 GAP 4 CLH (CLAMP HEIGHT) OF DIE PLATE

12.00

8

THE CLAMP IS AVAILABLE WITH A HANDLE (RC-126H)

7

THE BODY OF THE CLAMP HAS TWO SEPARATE HYDRAULIC PATHS DRILLED FROM END TO END. THE PATHS EACH INTERSECT THREE CYLINDERS. IN THIS ILLUSTRATED CONFIGURATION THE TWO HYDRAULIC PATHS ARE CONNECTED (CROSS DRILLED) SO THAT A SINGLE FITTING CAN SUPPLY HYDRAULIC PRESSURE TO ALL CYLINDERS. THIS CONFIGURATION IS USED WHEN A PILOT OPERATED HYDRAULIC CHECK VALVE IS INSTALLED FOR CLAMPING SAFETY. IF THE PATHS ARE NOT CROSS DRILLED, TWO INDEPENDENT HYDRAULIC CIRCUITS ARE CONNECTED TO THE CLAMP, EACH SERVING THREE CYLINDERS (RC-126D).

6

HYDRAULIC PORTS 5

KEEP THE GAP BETWEEN THE CLAMP ROCKER AND THE DIE TO A MINIMUM. THE CLAMP STROKE WHICH IS .36 MUST BE SUFFICIENT TO CLOSE THE GAP AT 3 AND 6 AND STILL APPLY 22,000 LBS OF CLAMPING FORCE TO THE DIE. THEREFORE, THE GAP AT 6 SHOULD NOT EXCEED .18 WHICH IS 50% OF STROKE.

5

HYDRAULIC CONNECTION IS 37° FLARE 7/16-20 UNF. THE HYDRAULIC FITTING(S) CAN BE INSTALLED AT EITHER END.

4

FOR VARIED CLAMP HEIGHTS, NOSE SPACERS (SHOWN) AND BASE SPACERS (NOT SHOWN) ARE ADDED TO ACHIEVE DESIRED NOMINAL CLAMP HEIGHT SPECIFIED IN PART NUMBER. NOMINAL CLAMP HEIGHT INCLUDES A NOMINAL .18" GAP FOR EASE OF CLAMP MOVEMENT.

3

DIE

THE STUD IS SECURED TO THE T-NUT AT THE TIME OF INSTALLATION SO THAT THE GAP BETWEEN THE T-NUT AND THE T-SLOT IS MINIMIZED YET ALLOWING THE CLAMP TO BE MOVED EASILY. USE PERMANENT THREAD LOCKING COMPOUND AND/OR OTHER MEANS OF ENSURING THAT THE STUD DOES NOT ROTATE IN THE T-NUT.

2. CLAMPING FORCE IS 22,000 LBS. AT MAXIMUM HYDRAULIC PRESSURE OF 5000 PSI. 1. THE MODEL-126 IS A ROCKER CLAMP WHICH MAY BE FIXED MOUNTED OR SECURED USING TWO T-NUTS. USE WITH DIES HAVING UNDERPLATES OR OTHER SUITABLE SURFACE ON WHICH THE CLAMP CAN GRIP.

4.00

7

.36 STROKE

.88 MAX. 4

HEIGHT VARIES W/ CLAMP HEIGHT (SEE CATALOG)

GAP 6 TOP OF BOLSTER

DIE 3 GAP

STUD T-NUT/SLOT SHOWN ROTATED 90° FOR CLARITY

.60

T-NUT SIZED TO FIT JIC T-SLOT

MODEL 126 ROCKER CLAMP RC-126

PAGE 1 OF 1

REV -

N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

PRESSURE

8 (REF)

7 (REF)

8 7

PISTON SUBASSEMBLY 6 REQUIRED NOTES CONTINUED ON PAGE 2. 8

REFER TO USER GUIDE FOR MAINTENANCE.

7

APPLY ACCROLUBE TO PISTONS, O-RINGS AND ALL MOVING PARTS BEFORE ASSEMBLY.

6

5

4

6

PLACE CLAMP IN A T-SLOT AND TIGHTEN SHC SCREW (ITEM 18) FIRMLY UNTIL CLAMP DOES NOT MOVE. PLACE A 1.500" THK SPACER BLOCK AGAINST CLAMP BASE AS SHOWN ON PAGE 2. APPLY LOCKTITE OR EQUIVALENT TO ROCKER SCREWS (ITEM 14) AND TORQUE TO 350 IN/LBS. A SPACER PLATE (NOT SHOWN) FOR ACHIEVING HIGHER CLAMP GRIP IS AVAILABLE AS A SEPARATE LINE ITEM. ITEM 3 IS INSTALLED UNLESS OTHER THICKNESS IS SPECIFIED.

3

THIS COLUMN SHOWS PARTS CONTAINED IN REFURBISH KIT (PART# 126PD-RFB).

2

THIS COLUMN SHOWS PARTS CONTAINED IN SEAL REPLACEMENT KIT (PART# 126PD-SEAL)

1

THIS COLUMN SHOW PARTS INCLUDED IN BASIC MODEL-126 CLAMP (REFERENCE ONLY)

4

1 1

1 1

-

126UG ZZ36120

USER GUIDE ACCROLUBE, 4cc TUBE

6 6 2 5 6 -

6 6 2 -

2 2 2 4 4 4 1 3 5 4 5 6 6 2 5 6 1 1 1

1755-APP 1644-APP

TEE NUT, 3-4-10 x APPLICATION SCREW, SHC, 3/4-10 x APPLICATION

2816-1

REST BUTTON SPRING, DISC WASHER, SPHERICAL, ALIGNMENT

QTY

QTY

QTY

RFB

3

SEAL

2

REF

1588 1586 1126 1804-2 1785 1603-10 1611-COD 1658-20 1781-118 1772-118 1511 1700-1 1153 1028-COD 3355 3354

ROCKER SCREW & WASHER, 5/8-18 UNF CONNECTOR, 45°, 1/8M TO 1/4 JIC PIPE PLUG, 1/8-27 NPTF ROLL PIN, .09 OD x .62 LNG SCREW, BUTHD, 1/4-20 UNC x .50 LNG SET SCREW, 8-32 x 1.25 LNG BACKUP RING, NON-SPLIT

22 21 20 19 18 17 16 15 14 13 12 11 10

O-RING, HIGH TEMP SPRING, COMPRESSION, .484 OD

9 8 7 6

EXTENSION SPRING, .50Ø PISTON, LOW PROFILE

5 4

SPACER, NOSE, MODEL 126 LID, MODEL 126 BODY, MODEL 126, SINGLE PORT

3 2

PART NUMBER

1

DESCRIPTION

ITEM

1

MODEL 126 ROCKER CLAMP RC-126PD

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N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

SPACER BLOCK

1.500

6

9 THE BODY OF THE CLAMP HAS TWO SEPARATE HYDRAULIC PATHS DRILLED FROM END TO END. THE PATHS EACH INTERSECT THREE CYLINDERS. IN THIS ILLUSTRATED CONFIGURATION THE TWO HYDRAULIC PATHS ARE CONNECTED. (CROSS DRILLED) SO THAT A SINGLE FITTING CAN SUPPLY HYDRAULIC PRESSURE TO ALL CYLINDERS. THIS CONFIGURATION IS USED WHEN A PILOT OPERATED HYDRAULIC CHECK VALVE IS INSTALLED FOR CLAMPING SAFETY. IF THE PATHS ARE NOT CROSS DRILLED TWO INDEPENDENT HYDRAULIC CIRCUITS ARE CONNECTED TO THE CLAMP EACH SERVING THREE CYLINDERS.

MODEL 126 ROCKER CLAMP RC-126PD

PAGE 2 OF 2

REV -

N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

5

CLH + APPROX. .18 GAP 4

12.00

CLH (CLAMP HEIGHT) OF DIE PLATE

8 THE CLAMP IS AVAILABLE WITH A HANDLE (RC-126LH) DIE

7 THE BODY OF THE CLAMP HAS TWO SEPARATE HYDRAULIC PATHS DRILLED FROM END TO END. THE PATHS EACH INTERSECT THREE CYLINDERS. IN THIS ILLUSTRATED CONFIGURATION THE TWO HYDRAULIC PATHS ARE CONNECTED (CROSS DRILLED) SO THAT A SINGLE FITTING CAN SUPPLY HYDRAULIC PRESSURE TO ALL CYLINDERS. THIS CONFIGURATION IS USED WHEN A PILOT OPERATED HYDRAULIC CHECK VALVE IS INSTALLED FOR CLAMPING SAFETY. IF THE PATHS ARE NOT CROSS DRILLED, TWO INDEPENDENT HYDRAULIC CIRCUITS ARE CONNECTED TO THE CLAMP, EACH SERVING THREE CYLINDERS (RC-126LD)

HYDRAULIC PORTS 5 4.00

6 KEEP THE GAP BETWEEN THE CLAMP ROCKER AND THE DIE TO A MINIMUM. THE CLAMP STROKE WHICH IS .36 MUST BE SUFFICIENT TO CLOSE THE GAP AT 3 AND 6 AND STILL APPLY 22,000 LBS OF CLAMPING FORCE TO THE DIE. THEREFORE, THE GAP AT 6 SHOULD NOT EXCEED .18 WHICH IS 50% OF STROKE.

3 THE STUD IS SECURED TO THE T-NUT AT THE TIME OF INSTALLATION SO THAT THE GAP BETWEEN THE T-NUT AND THE T-SLOT IS MINIMIZED YET ALLOWING THE CLAMP TO BE MOVED EASILY. USE PERMANENT THREAD LOCKING COMPOUND AND/OR OTHER MEANS OF ENSURING THAT THE STUD DOES NOT ROTATE IN THE T-NUT.

.36 STROKE

.88 MAX.

5 HYDRAULIC CONNECTION IS 37° FLARE 7/16-20 UNF. THE HYDRAULIC FITTING(S) CAN BE INSTALLED AT EITHER END. 4 FOR VARIED CLAMP HEIGHTS, NOSE SPACERS (SHOWN) AND BASE SPACERS (NOT SHOWN) ARE ADDED TO ACHIEVE DESIRED NOMINAL CLAMP HEIGHT SPECIFIED IN PART NUMBER. NOMINAL CLAMP HEIGHT INCLUDES A NOMINAL .18" GAP FOR EASE OF CLAMP MOVEMENT.

7

4 HEIGHT VARIES W/ CLAMP HEIGHT (SEE CATALOG)

GAP TOP OF BOLSTER

6 DIE 3 GAP

STUD T-NUT/SLOT SHOWN ROTATED 90° FOR CLARITY

.60

T-NUT SIZED TO FIT JIC T-SLOT

2. CLAMPING FORCE IS 22,000 LBS. AT MAXIMUM HYDRAULIC PRESSURE OF 5000 PSI. 1. THE MODEL-126L IS A ROCKER CLAMP WHICH MAY BE FIXED MOUNTED OR SECURED USING TWO T-NUTS. USE WITH DIES HAVING UNDERPLATES OR OTHER SUITABLE SURFACE ON WHICH THE CLAMP CAN GRIP. AFTER ACTUATING WITH HYDRAULIC PRESSURE, THE MECHANICAL LOCKS ARE SET AND THE HYDRAULIC PUMP IS DISCONNECTED. THE MECHANICAL LOCKS THEN MAINTAIN CLAMPING FORCE. HYDRAULIC PRESSURE MUST BE REAPPLIED IN ORDER TO OPEN THE MECHANICAL LOCKS.

MODEL 126 ROCKER CLAMP RC-126L

PAGE 1 OF 1

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N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

1.43 REF 1.14 REF

1

1.50 MAX. GRIP HEIGHT

6

10 10

7

9 1.14 MIN GRIP HEIGHT

VIEW A-A

7

FROM SHT. 2

.60 REF. 1.14 REF. 1.43 REF. CONCEPTUAL REFERENCE ONLY - MAY NOT BE TO SCALE 4. THIS COLUMN SHOWS PARTS CONTAINED IN REFURBISH KIT (PART# 126LPD-RFB) 3. THIS COLUMN SHOWS PARTS CONTAINED IN SEAL REPLACEMENT KIT (PART# 126LPD-SEAL) 2. THIS COLUMN SHOWS PARTS INCLUDED IN BASIC MODEL-126L, SINGLE PORT 1. THIS COLUMN SHOWS PARTS INCLUDED IN BASIC MODEL-126L, DUAL PORT

7

9

-

-

6

6

6 2 5 -

6 -

6 QTY

QTY SEAL RFB 4. 3.

1 2 4 4 2 4 2 2 5 4 5 6

1 2 4 4 2 4 1

1562-COD 2816-1

SPACER, BASE, CLAMP BODY REST BUTTON

1588 1586

SPRING, DISC

3 5 4 5 6

1785 1603-10

6 2 5 2

6 2 5 2

1772-118

6 1 1 1 -

6 1 1 1

1153 1028-COD

QTY

QTY

-2

2.

-1

1660-4 1126 1804-2

1611-COD 1658-20 1781-118

1511 1700-1 2814

3355 1447 3354

WASHER, SPHERICAL, ALIGNMENT SET SCREW, 1/4-20 UNC x .25 ROCKER SCREW & WASHER, 5/8-18 UNF CONNECTOR, 45°, 1/8M TO 1/4 JIC PIPE PLUG, 1/8-27 NPTF ROLL PIN, .09 OD x .62 LNG SCREW, BUTHD, 1/4-20 UNC x .50 LNG SET SCREW, 8-32 x 1.25 LNG BACKUP RING, NON-SPLIT O-RING, HIGH TEMP SPRING, COMPRESSION, .484 OD EXTENSION SPRING, .50Ø LOCK SCREW ASSY, 5/8-18 UNC PISTON, LOW PROFILE NOSEPIECE, MODEL 126 LID, MODEL 126 BODY, MODEL 126, DUAL PORT BODY, MODEL 126, SINGLE PORT

PART NUMBER

DESCRIPTION

22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ITEM

1.

MODEL 126 ROCKER CLAMP RC-126LPD

PAGE 1 OF 3

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CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

10

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

15

C

C

SEE SHT. 3

L OCK

10

CONNECTOR AND PIPE PLUG LOCATIONS ARE DEPENDENT ON CLAMP CONFIGURATION (SINGLE OR DUAL PORT).

9

THIS SCREW IS ONLY APPLICABLE IF NOSEPIECE IS USED.

8

TWO OF ITEM 23 AND TWO OF ITEM 24, 25 OR 26 ARE SHIPPED WITH EACH CLAMP.

7

DIFFERENT GRIP HEIGHT VARIATIONS MAY BE ACHIEVED USING DIFFERENT COMBINATIONS OF NOSEPIECE AND BASE SPACERS. THE HEIGHT OF THE ROCKER WILL ALSO VARY WITH SETUP.

6

A SPACER PLATE (NOT SHOWN) FOR ACHIEVING A HIGHER CLAMP GRIP IS AVAILABLE AS A SEPARATE LINE ITEM. IT INFLUENCES THE SCREW LENGTH (ITEM 23) MENTIONED IN NOTE 5.

5

PLACE CLAMP IN A T-SLOT AND TIGHTEN SHC SCREW (ITEM 23) FIRMLY UNTIL CLAMP DOES NOT MOVE. PLACE A 1.500" THK SPACER BLOCK AGAINST CLAMP BASE AS SHOWN IN FIGURE D. APPLY LOCKTITE OR EQUIVALENT TO ROCKER SCREW (ITEM 17) AND TORQUE TO 350 IN/LBS.

UN L C K - O

B

B

L OCK

SEE SHT. 3

UN L C K - O

12

A

A

11 9

SEE SHT. 1 8

5

10

5 1.500

16

1 1 -

1 1 -

-

-

2 2 2 2 2

2 2 2 2 2

QTY

QTY

QTY

QTY

RFB

SEAL

-2

-1

126LUG ZZ36120 1617-COD 3533-100COD 1755-16COD 1755-13COD 1644-APL

USER GUIDE

29 28 27 26

ACCROLUBE, 4cc TUBE SCREW, FLTHD, 1/4-20 UNC TEE NUT, 3/4-10 x 1.21 THROAT TEE NUT, 3/4-10 x 1.00 THROAT

25 24

TEE NUT, 3/4-10 x .81 THROAT SCREW, SHC, 3/4-10 x APPLICATION

23 ITEM

DESCRIPTION

PART NUMBER

SPACER BLOCK

MODEL 126 ROCKER CLAMP

FIGURE D

RC-126LPD

PAGE 2 OF 3

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N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

6

SECTION B-B

SECTION C-C

2 REQD

FROM SHT. 2

FROM SHT. 2

3

18

17

2 REQD

4 REQD

12

19 4 REQD

5 REQD 11 8 21

20

6 REQD

4 REQD

2 REQD

MOUNTING HOLE FOR ITEM 4 NOSE SPACER REF

9

2 REQD

6 REQD 7

5

6 REQD

5 REQD 6

14

2 REQD

1

-1 ONLY

2

-2 ONLY

23 24

5 REQD 8

QTY: REF

25 26

12. REFER TO USER GUIDE FOR MAINTENANCE. 11. APPLY ACCROLUBE TO PISTONS, O-RINGS AND ALL MOVING PARTS BEFORE ASSEMBLY.

MODEL 126 ROCKER CLAMP RC-126LPD

PAGE 3 OF 3

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N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

FLEXIBLE HOSE TO CLAMPS 4 PLACES

HOSE OR RIGID TUBE

BOLSTER OR RAM

4. ALL PFA QDC APPLICATION AND USE RECOMMENDATIONS ARE ADVISORY ONLY. PRODUCT SELECTION AND USE SHOULD BE IN ACCORDANCE WITH CUSTOMER SAFETY STANDARDS. PROPER FORM, FIT AND FUNCTION ARE THE RESPONSIBILITY OF THE CUSTOMER. 3. USE WITH PRESSURE SENSOR TO STOP PRESS IF HYDRAULIC PRESSURE DROPS BELOW PRESET LEVEL.

TO HYDRAULIC PUMP CONTROL (HC) WITH TWO CIRCUITS (2 ZONE), CHECKED SUPPLY AND LOW PRESSURE CUTOFF SENSOR/SWITCH EXAMPLE: PFA MODEL HC-120S-PS

2. HYDRAULIC CHECK VALVE LOCATED AT CONTROL VALVE FOR EACH CIRCUIT. 1. CLAMPS POWERED BY INDEPENDENT DIAGONALLY OPPOSITE HYDRAULIC CIRCUITS (ZONES). LOSS OF PRESSURE IN ONE CIRCUIT DOES NOT AFFECT THE OTHERS. NOTES: UNLESS OTHERWISE SPECIFIED

CLAMPSAFE 1 HYDRO CIRCUITS DIAGONAL

PAGE 1 OF 3

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N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

FLEXIBLE HOSE TO CLAMPS 6 PLACES

HOSE OR RIGID TUBE

BOLSTER OR RAM

4. ALL PFA QDC APPLICATION AND USE RECOMMENDATIONS ARE ADVISORY ONLY. PRODUCT SELECTION AND USE SHOULD BE IN ACCORDANCE WITH CUSTOMER SAFETY STANDARDS. PROPER FORM, FIT AND FUNCTION ARE THE RESPONSIBILITY OF THE CUSTOMER. 3. USE WITH PRESSURE SENSOR TO STOP PRESS IF HYDRAULIC PRESSURE DROPS BELOW PRESET LEVEL. 2. HYDRAULIC CHECK VALVE LOCATED AT CONTROL VALVE FOR EACH CIRCUIT.

TO HYDRAULIC PUMP CONTROL (HC) WITH TWO CIRCUITS (2 ZONE), CHECKED SUPPLY AND LOW PRESSURE CUTOFF SENSOR/SWITCH EXAMPLE: PFA MODEL HC-120S-PS

1. CLAMPS POWERED BY INDEPENDENT DIAGONALLY OPPOSITE HYDRAULIC CIRCUITS (ZONES). LOSS OF PRESSURE IN ONE CIRCUIT DOES NOT AFFECT THE OTHERS. NOTES: UNLESS OTHERWISE SPECIFIED

CLAMPSAFE 1 HYDRO CIRCUITS DIAGONAL

PAGE 2 OF 3

REV -

N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

FLEXIBLE HOSE TO CLAMPS 8 PLACES

HOSE OR RIGID TUBE

BOLSTER OR RAM

4. ALL PFA QDC APPLICATION AND USE RECOMMENDATIONS ARE ADVISORY ONLY. PRODUCT SELECTION AND USE SHOULD BE IN ACCORDANCE WITH CUSTOMER SAFETY STANDARDS. PROPER FORM, FIT AND FUNCTION ARE THE RESPONSIBILITY OF THE CUSTOMER. 3. USE WITH PRESSURE SENSOR TO STOP PRESS IF HYDRAULIC PRESSURE DROPS BELOW PRESET LEVEL.

TO HYDRAULIC PUMP CONTROL (HC) WITH TWO CIRCUITS (2 ZONE), CHECKED SUPPLY AND LOW PRESSURE CUTOFF SENSOR/SWITCH EXAMPLE: PFA MODEL HC-120S-PS

2. HYDRAULIC CHECK VALVE LOCATED AT CONTROL VALVE FOR EACH CIRCUIT. 1. CLAMPS POWERED BY INDEPENDENT DIAGONALLY OPPOSITE HYDRAULIC CIRCUITS (ZONES). LOSS OF PRESSURE IN ONE CIRCUIT DOES NOT AFFECT THE OTHERS. NOTES: UNLESS OTHERWISE SPECIFIED

CLAMPSAFE 1 HYDRO CIRCUITS DIAGONAL

PAGE 3 OF 3

REV -

N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

MODEL 392, MODEL-4197-3 C CHECK VALVE ASSEMBLY SCALE 2:1 1/4-20 SCREW

1

0.75 TOP VIEW 1.50 1.00

2

0.25

1

Model 201

Model 201

0.43

CLAMP

STUD

TO CLAMP

2.25

PFA, INC. Ph: 262-250-4410

DIE SUB-PLATE

P

P/T

PRESSURE CIRCUITS

1.39

CHECK VALVE P/N 4197-3 C

RELEASE

TO CLAMP

TO NEXT CLAMP

TO CLAMP

PFA, INC. Ph: 262-250-4410

PFA, INC. Ph: 262-250-4410

PRESSURE

PRESSURE

CIRCUITS

CIRCUITS

CHECK VALVE P/N 4197-3 C

CHECK VALVE P/N 4197-3 C

RELEASE

RELEASE

TO NEXT CLAMP FRONT VIEW

PILOT CIRCUIT (PC) 5,000 PSI HYDRAULIC PRESSURE TO CLAMP (STEEL TUBE OR HOSE) 5,000 PSI HYDRAULIC PILOT CIRCUIT TO OPEN CLAMP (STEEL TUBE OR HOSE)

2

FLEXIBLE HOSE TO CLAMP.

1 CLAMP SHOWN IN THESE SCHEMATICS IS A MODEL-201 HYDRAULICALLY ACTUATED SPRING RELEASE DESIGN. SCHEMATIC APPLIES TO ALL CLAMPS WITH EXTERNALLY MOUNTED PILOT OPERATED CHECK VALVES. NOTES: UNLESS OTHERWISE SPECIFIED

CLAMPSAFE 3 HYDRO CIRCUIT W/ CHECK VALVES

PAGE 1 OF 3

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N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

RELEASE

RELEASE

CHECK VALVE P/N 4197-3 C

CHECK VALVE P/N 4197-3 C

CIRCUITS

CIRCUITS

PRESSURE

PRESSURE PFA, INC. Ph: 262-250-4410

PFA, INC. Ph: 262-250-4410

TO CLAMP

TO CLAMP

FLEXIBLE HOSES TO EACH CLAMP

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

HOSE OR RIGID TUBE

6

PILOT CIRCUIT

CLAMP

8 CLAMPING CIRCUIT

T-SLOT

7 BOLSTER OR RAM

10 T-OFF TO CONNECT PRESSURE SENSOR, IF USED. (SEE MORE DATA ON PAGE 3)

TO CLAMP PFA, INC. Ph: 262-250-4410

PRESSURE CIRCUITS

TO CLAMP PFA, INC. Ph: 262-250-4410

PRESSURE CIRCUITS

CHECK VALVE P/N 4197-3 C

CHECK VALVE P/N 4197-3 C

RELEASE

RELEASE

HYDRAULIC POWER AND CONTROL MODULE

8. IF THIS LINE BREAKS (PILOT CIRCUIT) IT MUST BE REPAIRED BEFORE CLAMPS CAN BE OPENED. (IN AN EMERGENCY, HOSE FITTINGS AT CLAMPS COULD BE REMOVED TO ALLOW HYDRAULIC FLUID TO ESCAPE AND THE CLAMPS TO OPEN.) 7. IF THIS LINE BREAKS ALL CLAMPS WILL RETAIN CLAMPING PRESSURE. IF INSTALLED, PRESSURE SWITCH WILL STOP PRESS. 6. IF THIS HOSE BREAKS THIS CLAMP WILL OPEN BUT ALL OTHER CLAMPS RETAIN CLAMPING PRESSURE. IF INSTALLED, PRESSURE SWITCH WILL SENSE PRESSURE DROP AND STOP PRESS. 5. USE WITH PRESSURE SENSOR TO STOP PRESS IF HYDRAULIC PRESSURE DROPS BELOW PRESET LEVEL. PRESSURE SENSOR IS TYPICALLY PROVIDED ON MAIN PRESSURE LINE IN CONTROLLER (PS). PRESSURE SENSORS CAN BE CONNECTED TO INDIVIDUAL CIRCUITS AS DESIRED (SEE PAGE 3).

10. MANIFOLD P/N 1068 CAN BE INSTALLED ANYWHERE ALONG THE CLAMPING AND RELEASE CIRCUITS. 9. ALL PFA QDC APPLICATION AND USE RECOMMENDATIONS ARE ADVISORY ONLY. PRODUCT SELECTION AND USE SHOULD BE IN ACCORDANCE WITH CUSTOMER SAFETY STANDARDS. PROPER FORM, FIT AND FUNCTION ARE THE RESPONSIBILITY OF THE CUSTOMER.

4. NOTE THAT CHECK VALVE IS INSTALLED NEAR EACH CLAMP. 3. CLAMPS ARE POWERED BY THE CLAMPING CIRCUIT AND OPENED BY THE PILOT CIRCUIT. NOTES: UNLESS OTHERWISE SPECIFIED

CLAMPSAFE 3 HYDRO CIRCUIT W/ CHECK VALVES

PAGE 2 OF 3

REV -

N118 W18251 Bunsen Drive, Germantown, WI 53022 | 262.250.4410 | pfa-inc.com


CONFIDENTIAL: The information shown on this sheet is confidential. Permission to use, reproduce or transmit in any way not specifically authorized is expressly withheld.

DISCLAIMER: Illustrative drawings, CAD models, and information described herein is proprietary intellectual property of PFA, Inc., accurate to the company’s knowledge at time of printing, and intended for reference only. Specifications are subject to change without notice. If the information obtained from this document is critical to a specific application, it should be confirmed by contacting PFA, Inc. PFA Terms of Sale apply.

TO CLAMP POWER

HOSE SAME CIRCUITRY AS ILLUSTRATED BELOW 1/4-20 MOUNTING HOLES

TO CLAMP PFA, INC. Ph: 262-250-4410

TO OTHER CHECK VALVES POWER (CLAMP) CIRCUIT

PRESSURE CIRCUITS CHECK VALVE P/N 4197-3 C

TO CLAMP CIRCUIT #1 RETURN

PILOT

POWER

CIRCUIT #2 (CLAMP) FROM POWER & CONTROL MODULE (RAM CLAMPS) CIRCUIT #2 (UNCLAMP) FROM POWER & CONTROL MODULE

CIRCUIT #1 (CLAMP) FROM POWER & CONTROL MODULE (BOLSTER CLAMPS)

RELEASE

TO OTHER CHECK VALVES PILOT (UNCLAMP) CIRCUIT

CLAMP RELEASE

PILOT

CIRCUIT #1 (UNCLAMP) FROM POWER & CONTROL MODULE

MODEL 4197-3 C PILOT OPERATED CHECK VALVE

PRESSURE SWITCH MAY BE WIRED NORMALLY OPEN OR NORMALLY CLOSED. IF A PLC IS USED PLC LOGIC MUST BE PROGRAMMED ACCORDINGLY. THE PRESSURE SWITCH MAY BE SET TO TRIP AT VARIOUS PRESSURES. RECOMMENDED RANGE IS 2500 PSI TO 3500 PSI WHEN SYSTEM IS OPERATED AT 5000 PSI. 12. A PRESSURE SWITCH MODULE IS USED WHEN A PRESSURE SENSOR IS INSTALLED ON EACH CIRCUIT, AS DESIRED. 11. THIS PAGE SHOWS A MODEL 4197-3 C CHECK VALVE INSTALLED WITH A MODEL-201 HYDRAULIC NUT AND OPTIONAL MODEL-382 PRESSURE SWITCH MODULE. TWO SEPARATE CLAMPING AND PILOT CIRCUITS ARE SHOWN (MORE CAN BE ADDED).

CIRCUIT #2

CIRCUIT #1

CONDUIT HERE

12 MODEL-382 PRESSURE SWITCH MODULE

SENSOR SWITCH (TWO) MODULES WITH THREE, FOUR OR GREATER NUMBER OF SENSORS ARE AVAILABLE.

CLAMPSAFE 3 HYDRO CIRCUIT W/ CHECK VALVES

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N118 W18251 Bunsen Drive Germantown,WI 53022 (262) 250-4410 • Fax (262) 250-4409

pfa-inc.com

PFA Model 126 & 126L Power Strap Rocker Clamp Quick Die Change User Guide  

User Guide for the 126/126L Rocker Clamp from PFA Inc., Germantown, WI

PFA Model 126 & 126L Power Strap Rocker Clamp Quick Die Change User Guide  

User Guide for the 126/126L Rocker Clamp from PFA Inc., Germantown, WI