SUMNER 2303 Pipe Jacks Instruction Manual

OPERATOR’S SAFETY MANUAL
Sumner Pipe Jacks

2303 Pipe Jacks

Owner’s Reponsibilities

NOTICE: Throughout this publication, the words WARNING, CAUTION, and IMPORTANT will be used to alert the user to special instructions concerning a particularoperation that may be hazardous if performed incorrectly or carelessly. OBSERVE THEM CAREFULLY!
These “Safety Alerts” alone cannot eliminate the hazards that they signal. Strict compliance to these special instructions while performing the service plus“common sense” operation are major accident prevention measures.
WARNING Hazards or unsafe practices which could result in severe personal injury or death.
CAUTION Hazards or unsafe practices which could result in minor personal injury, product or property damage.
IMPORTANT Indicates information or instructions that are necessary for proper operation and/or maintenance.
Copyright © 2023 by Sumner Manufacturing Co., LLC. All rights reserved. No part of this book may be reproduced or utilized in any form or by any means, electronicor mechanical, including photocopying, recording or by any information storage and retrieval system, without permission in writing from Sumner Manufacturing Co., LLC, 7514 Alabonson Road, Houston, TX 77088.

Operator Safety Instructions

To operate jacks safely requires dexterity, mechanical skills and sound safety habits.
Although Sumner jacks are manufactured for safe, dependable operation, it is impossible to anticipate those combinations of circumstances which could result in an accident. The following instructions are recommended for safe operation of this unit:

Read and understand the instructions for safe operation. Before working with a Sumner jack, understand the correct operation, applications andlimitations. Always contact Sumner when in doubt. Be particularly aware of specific hazards. Store this safety
manual in a clean area and always at a readily available location. Additional copies are available for download from www.southwire.com.
Inspect the equipment. Prior to using Sumner jacks, check all parts to ensure that they are in proper operating condition. Inspect legs for bends, breaks or metal deformation.
CAUTION In the event of any jack stand leg deformation, discontinue use immediately.
IMPORTANT Make any necessary repairs before attempting to use the jack.
Wear proper clothing. Hard hat or welding helmet, safety shoes and welding gloves should be worn as a precaution while operating this equipment.
Keep work area clean. Always keep floor in work area clear of clutter for unobstructed movement around the jack.
Operate from proper position. Keep balance and proper footing at all times.
Keep alert. Avoid horseplay around equipment and keep bystanders at a safe distance. Do not allow children to operate jacks and always keep them out of work areas.
CAUTION Never allow anyone under jack stand with load.
Do not misuse unit. Perform only the functions for which the jacks are designed. Never attempt to operate the equipment at more than the recommended capacity.
WARNING Modifying the jack stand can result in injury or death.
Commonly Found Issues

If found, REMOVE FROM SERVICE.

Damaged / Bent Legs Cracked Tube

Wrong Washer in Jack Stand Jack without ID Tube

Wrong ID Tube in Jack Stand
Operate only on level surfaces. Use the jack only on smooth and level surfaces to avoid tipping and the possibility of operator injury.
Hold both jack head and jack leg or carrying handle when transporting. To prevent foot injury, always carry jack by both the head and the jack leg or carrying handle.
Use only Sumner parts. Mixing other manufactured jack stand parts on Sumner jacks can result in operator injury.

Jack Stand Specifications

The above specifications apply to Heavy Duty Jacks, Fold-A-Jacks, Hi Heavy Duty Plus Jack and Hi Pro Jacks. The adjustable height range for other jacks varies by type. Consult the latest Sumner Welding Make-Up Tools catalog or sumner.com for specifications.
NOTE: Do not mix and match heads.

Read and understand these instructions prior to operating.
Always inspect the equipment for damage and make any needed repairs before using.
Wear hard hat or welding helmet and safety shoes.
Keep floor clear of clutter and obstructions.
Stay alert and always avoid horseplay.
Use on level and solid surfaces only.
Secure set screw after adjustment of I.D. barrel.
Always transport with jack head up.
Adjust I.D. barrel to desired work height before placing load on jack.
Center load on jack head.

DON’T

Never attempt to lift more than the jack’s recommended capacity.
Do not work under a load.
Never operate jack on an unstable foundation.
Do not force unit if operation is restricted.
Never modify jacks.
Do not pull or push loads when mounted on jacks.

Operating Instructions

Select the right head style:

HEAD STYLES FOR SUMNER’S PRO JACK ™ , HEAVY DUTY JACKS AND FOLD-A-JACKS ™
Head Style	Part #	Description	Cacpacity	Pipe Size Minimum	Pipe Size Maximum
	780518 780498	Standard Vee Head Standard Vee Head w/SS Sleeve	2,500 lb (1,135 kg)	1/8″ (3 mm)	24″ (600 mm)
	780518 & 780551 780518 & 780274	Ball Transfer Head Ball Transfer Head (Stainless Steel)	1,000 lb (450 kg)	3/8″ (10 mm)	12″ (300 mm)
	780514 780274 785220	Roller Head Assy. w/Aluminum Wheels Roller Head Assy. w/SS Wheels Aluminum Roller Head	2,500 lb (1,135 kg)	1 1/4″ (30 mm)	24″ (600 mm)
	780499	Rubber Wheel Head	1,000 lb (450 kg)	1 1/2″ (40 mm)	24″ (600 mm)
	780519 (Hi) 780944 (Lo)	Bar Stock Head	2,000 lb (900 kg)	1/8″ (3 mm)	24″ (600 mm)

Head capacity equals max capacity of jack.

Stainless Steel Vee Head Attachment Part # 780502
Fits over vee and secures with two bolts – no tools required!Standard Vee Head Ball
Transfer Set
Part # 780551 (standard)
Part # 780274 (stainless steel)
Attachments slide over standard vee head. Accommodates 3/8″ – 12″ (10 – 300 mm) pipe sizes. 1,000 lb (450 kg) capacity.

Proper Operation:

IMPORTANT Inspect jack prior to each use to ensure legs are free of bends, breaks or metal deformation and that spanner nut rotates freely.

Sumner offers two different jack heights (hi and lo), that allow welders to work at a comfortable height, depending upon the diamter of the pipe or load. Based on the size of the material to be welded, select the correct jack for the job (see page 8 on jack height).

Correct Jack Height
Operator work level is at comfortable position. Incorrect Jack Height
Work too low for operator can result in back injury.

IMPORTANT Always use same height jacks (hi or lo) per load. Do not mix jack makes or head styles.
Position jacks 5 feet (1.5 m) to 12 feet (3.5 m) apart, depending on length and weight of load. For an extra margin of safety it is recommended to have at least 4 jack stands spread evenly under any load.
Adjust spanner nut so that at least 2–3″ (50–75 mm) of adjustment screw is showing out of the I.D. barrel.
To position jack to desired height, loosen set screw and lift I.D. barrel. Lock washer will unlock when I.D. barrel is being raised and will grip automatically with the slightest load pressure.
WARNING Raising or lowering I.D. barrel with load on jack can result in serious injury.
To lower jack head, lift both I.D. barrel and lock washer to loosen barrel. While holding lock washer lower I.D. barrel to desired height. Release lock washer to secure I.D. barrel.
IMPORTANT _ To avoid pinching fingers, release lock washer first before releasing I.D. barrel.
All jack heads used in the same fit-up job should be at equal heights.
Always center the load on the jack head.
Level load by rotating spanner nut.

Transporting Jack Stand:

Vee head assembly can be locked in the jack for transportation. Position locator hole in ID tube so that it is in-line with set screw.Tighten set screw so that the head cannot come out of stand.
WARNING Set screw should only be used to hold jack head in place during transport and should not be used to hold a load. Release set screw before putting jacks under a load.Jack head assembly can slide out of the I.D. barrel if jack is carried incorrectly. To prevent foot injury, always carry jack by both the jack head and leg or carrying handle.

Adjusting Ball Transfer Heads:

Ball transfer assemblies slide over each vee of the Sumner Vee Head Jack. Make sure set screws are fully recessed. Note that the ball transfer locations are adjustable to accommodate both small 3/8″ (10 mm) diameter pipe or larger diameter pipe up to 12″ (300 mm).

CAUTION To be sure that pipe stays on the ball transfer head when rotating, tighten set screws.

Adjusting Roller Head and Rubber Wheels:

Remove wheel attaching bolt and nut and reposition for correct pipe size.

Using Jack Stand with Threading Machine:
When using the pipe stand behind threading machines, pipe stand vee should be positioned so that the pipe has level entry into the threader. A pipe stand should be positioned under the pipe every 8 feet.

Hold-E Pipe Clamp (PN 785000) (Stainless Steel PN 784999):
The Hold-E Pipe Clamp is for use with vee heads to secure pipe 3/4″ to 6″ in diameter. The Hold-E Pipe Clamp is highly recommended as a quick, easy safety precaution for the welder when fitting up layout work or short pipe lengths.

Hold-Down Device (PN 781050):
Sumner offers as an option to vee head users, a quick-action chain vise to secure pipe up to 12″ in diameter onto the jack stand. The Hold-Down Device is highly recommended as a safety precaution for the welder when fitting up flanges, fittings or short pipe lengths.For users of larger pipe, a Chain Extension Kit (PN 781056) is available in increments of 12″.

Pipe Stand Details

Pipe Stand	Part #	Description	Load Capacity	Min. Pipe Capacity	Max. Pipe Capacity	Min. Height	Max. Height	Width	Length	Weight
FOLD-A-JACK ™
	781300 781301 781302 781303 781304 781305 781306 781310 781311 781313 781314 781315 781316	HI FAJ – Vee HI FAJ – Roller HI FAJ – Bar tock HI FAJ – SS Roller HI FAJ – SS Vee HI FAJ – Ball Trans HI FAJ – Rubber Whls LO FAJ – Vee LO FAJ – Roller LO FAJ – SS Roller LO FAJ – SS Vee LO FAJ – SS Vee LO FAJ – Rubber Whls	2,500 lb (1,135 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,500 lb (1,135 kg) 1,000 lb (450 kg) 1,000 lb (450 kg) 2,500 lb (1,135 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,500 lb (1,135 kg) 1,000 lb (450 kg) 1,000 lb (450 kg)	1/8″ (3 mm) 1-1/4″ (30 mm) 1/8″ (3 mm) 1-1/4″ (30 mm) 1/8″ (3 mm) 3/8″ (10 mm) 1-1/2″ (40 mm) 1/8″ (3 mm) 1-1/4″ (30 mm) 1-1/4″ (30 mm) 1/8″ (3 mm) 3/8″ (10 mm) 1-1/2″ (40 mm)	24″ (600 mm) 24″ (600 mm) 10″ (250 mm) 24″ (600 mm) 24″ (600 mm) 12″ (300 mm) 24″ (600 mm) 24″ (600 mm) 24″ (600 mm) 24″ (600 mm) 24″ (600 mm) 12″ (300 mm) 24″ (600 mm)	28″ (71 cm) 21″ (51 cm)	49″ (125 cm) 36″ (89 cm)	22″ (56 cm) 15-1/2″ (39 cm)	22″ (56 cm) 15-1/2″ (39 cm)	25 lb (11.4 kg) 28 lb (12.7 kg) 25 lb (11.4 kg) 29 lb (13.1 kg) 24 lb (10.9 kg) 29 lb (13.1 kg) 26 lb (11.8 kg) 21 lb (9.5 kg) 24 lb (10.9 kg) 24 lb (10.9 kg) 22 lb (10.0 kg) 25 lb (11.3 kg) 22 lb (10.0 kg)
HEAVY DUTY JACKS
	780375 780376 780377 780378 780379 780380 780381 780385 780386 780387 780388 780389 780390 780391	HI HD – Vee HI HD – Roller HI HD – Bar Stock HI HD – SS Roller HI HD – SS Vee HI HD – Ball Trans HI HD – Rubber Whls LO HD – Vee LO HD – Roller LO HD – Bar Stock LO HD – SS Roller LO HD – SS Vee LO HD – Ball Trans LO HD – Rubber Whls	2,500 lb (1,135 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,500 lb (1,135 kg) 1,000 lb (450 kg) 1,000 lb (450 kg) 2,500 lb (1,135 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,500 lb (1,135 kg) 1,000 lb (450 kg) 1,000 lb (450 kg)	1/8″ (3 mm) 1-1/4″ (30 mm) 1/8″ (3 mm) 1-1/4″ (30 mm) 1/8″ (3 mm) 3/8″ (10 mm) 1-1/2″ (40 mm) 1/8″ (3 mm) 1-1/4″ (30 mm) 1/8″ (3 mm) 1-1/4″ (30 mm) 1/8″ (3 mm) 3/8″ (10 mm) 1-1/2″ (40 mm)	24″ (600 mm) 24″ (600 mm) 10″ (250 mm) 24″ (600 mm) 24″ (600 mm) 12″ (300 mm) 24″ (600 mm) 24″ (600 mm) 24″ (600 mm) 24″ (600 mm) 24″ (600 mm) 24″ (600 mm) 12″ (300 mm) 24″ (600 mm)	28″ (71 cm) 21″ (51 cm)	49″ (125 cm) 36″ (89 cm)	22″ (56 cm) 15-1/2″ (39 cm)	22″ (56 cm) 15-1/2″ (39 cm)	24 lb (10.9 kg) 27 lb (12.2 kg) 24 lb (10.9 kg) 28 lb (12.7 kg) 24 lb (10.9 kg) 27 lb (12.2 kg) 26 lb (11.8 kg) 19 lb (8.6 kg) 22 lb (10.0 kg) 18 lb (8.2 kg) 22 lb (10.0 kg) 19 lb (8.6 kg) 22 lb (10.0 kg) 21 lb (9.6 kg)
HEAVY DUTY JACK PLUS
	780326	HD PLUS – Vee	3,500 lbs (1,580 kg)	1/8″ (3 mm)	24″ (600 mm)	28″ (71 cm)	49″ (125 cm)	22″ (56 cm)	22″ (56 cm)	24 lb (10.9 kg)
PRO JACK ™
	780471 780472 780473 780474 780475 780476 780477	HI PRO – Vee HI PRO – Roller HI PRO – Bar Stock HI PRO – SS Roller HI PRO – SS Vee HI PRO – Ball Trans HI PRO – Rubber Whls	2,000 lb (900 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 1,000 lb (450 kg) 1,000 lb (450 kg)	1/8″ (3 mm) 1-1/4″ (30 mm) 1/8″ (3 mm) 1-1/4″ (30 mm) 1/8″ (3 mm) 3/8″ (10 mm) 1-1/2″ (40 mm)	24″ (600 mm) 24″ (600 mm) 10″ (250 mm) 24″ (600 mm) 24″ (600 mm) 12″ (300 mm) 24″ (600 mm)	28″(71 cm)	49″ (125 cm)	24″ (61 cm)	24″ (61 cm)	23 lb (10.4 kg) 26 lb (11.8 kg) 23 lb (10.4 kg) 26 lb (11.8 kg) 24 lb (10.9 kg) 28 lb (12.7 kg) 25 lb (11.4 kg)
FAT JACK™
	787900 787901 787902 787903 787904 787905	Maxi Fat Jack – Vee Midi Fat Jack – Vee Mini Fat Jack – Vee Maxi Fat Jack – Roller Midi Fat Jack – Roller Mini Fat Jack – Roller	6,000 lb (2,722 kg)	1/8″ (3 mm)	24″ (600 mm)	36″ (91.4 cm) 26.5″ (67.3 cm) 16″ (40.6 cm) 36″ (91.4 cm) 26.5″ (67.3 cm) 16″ (40.6 cm)	61″ (154.9 cm) 44.5″ (113 cm) 28.5″ (72.4 cm) 61″ (154.9 cm) 44.5″ (113 cm) 28.5″ (72.4 cm)	34″ (86.3 cm) 21″ (53.3 cm) 19″ (48.3 cm) 34″ (86.3 cm) 21″ (53.3 cm) 19″ (48.3 cm)	34″ (86.3 cm) 21″ (53.3 cm) 19″ (48.3 cm) 34″ (86.3 cm 21″ (53.3 cm) 19″ (48.3 cm)	47 lb (21.4 kg) 37 lb (16.8 kg) 28 lb (11.4 kg) 47 lb (21.4 kg) 37 lb (16.8 kg) 28 lb (11.4 kg)
FAB SAF™ JACK
	780395 780400	FAB SAF – Vee AB SAF – Roller	3,500 lb (1,580 kg) 2,500 lb (1,135 kg)	1/8″ (3 mm) 1-1/4″ (30 mm)	36″ (900 mm) 36″ (900 mm)	38″ (81 cm)	52″ (132 cm)	30″ (76 cm)	30″ (76 cm)	39 lb (17.6 kg) 42 lb (19.0 kg)
HI BOY ™
	783250	HI BOY	1,000 lb (450 kg)	1/8″ (3 mm)	24″ (600 mm)	39″ (98 cm)	72″ (180 cm)	38″ (97 cm)	38″ (97 cm)	45 lb (20.4 kg)
ADJUST-A-ROLLS ™
	780365 780366 780367 780368 780369 780370 780371 780372 780373 780359 780360 780361 780362 780363 780364	HI AAR – Steel Whls HI AAR – Ball Trans HI AAR – Rubber Whls HI AAR – SS Whls HI AAR – Bar Stock LO AAR – Steel Whls LO AAR – Ball Trans LO AAR – Rubber Whls LO AAR – SS Whls LO AAR – Bar Stock TBL AAR – Steel Whls TBL AAR – Ball Trans TBL AAR – Rubber Whls TBL AAR – SS Whls TBL AAR – Bar Stock	2,000 lb (900 kg) 1,000 lb (450 kg) 1,200 lb (550 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 1,000 lb (450 kg) 1,200 lb (550 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 2,000 lb (900 kg) 1,000 lb (450 kg) 1,200 lb (550 kg) 2,000 lb (900 kg) 2,000 lb (900 kg)	1/2″ (12 mm) 1/2″ (12 mm) 1/2″ (12 mm)	36″ (900 mm) 36″ (900 mm) 36″ (900 mm)	31″ (78 cm) 24″ (61 cm) 7″ (18 cm) 5-3/4″ (15 cm) 7″ (18 cm) 7″ (18 cm) 5-3/4″ (15 cm)	23″ (58 cm) 22″ (56 cm) 6-1/4″ (16 cm)		32″ (81 cm) 31″ (79 cm) 22″ (56 cm)	35 lb (15.8 kg) 38 lb (17.3 kg) 34 lb (15.4 kg) 35 lb (15.8 kg) 39 lb (17.6 kg) 34 lb (15.4 kg) 24 lb (10.9 kg) 32 lb (14.5 kg) 34 lb (15.4 kg) 37 lb (16.8 kg) 22 lb (10.0 kg) 22 lb (10.0 kg) 20 lb (9.0 kg) 22 lb (10.0 kg) 24 lb (10.9 kg)
PRO ROLL ™
	780441 780442 780443 780444 780446	PRO ROLL – Steel Whls PRO ROLL – Ball Trans PRO ROLL – Rubber Whls PRO ROLL – SS Whls PRO ROLL – Bar Stock	2,000 lb (900 kg) 1,000 lb (450 kg) 1,200 lb (550 kg) 2,000 lb (900 kg) 2,000 lb (900 kg)	1/2″ (12 mm)	36″ (900 mm)	29″ (74 cm)	43″ (109 cm)	23″ (58 cm)	32″ (81 cm)	47 lb (21.3 kg) 49 lb (22.2 kg) 45 lb (20.4 kg) 47 lb (21.3 kg) 49 lb (22.2 kg)
BIG V ™ JACK
	780260	Big V	2,500 lb (1,135 kg)	4″ (100 mm)	36″ (900 mm)	29-1/2″ (75 cm)	41″ (104 cm)	29-1/2″ (75 cm)	29-1/2″ (75 cm)	36 lb (16.4 kg)
MAX JAX ™ I & II
	781460 781403 786450 786451	Max Jax Basic Max Jax Kit (Roller Head) Max Jax 2 Kit #1 (Vee Head) Max Jax 2 Kit #2 (Drop Slot Head)	2,500 lb (1,135 kg) 2,000 lb (900 kg) 4,500 lb (2045 kg) 4,500 lb (2045 kg)	4″ (100 mm)	36″ (900 mm)	21″ (53 cm) 30-1/2″ (78 cm) 52″ (133 cm) 23″ (58 cm)	33″ (84 cm) 42-1/2″ (108 cm) 74″ (188 cm) 36″ (91 cm)	29-5/8″ (75 cm) 39-1/2″ (100 cm) 37.5″ (95 cm) 37.5″ (95 cm)	29-5/8″ (75 cm) 39-1/2″ (100 cm) 37.5″ (95 cm) 37.5″ (95 cm)	68 lb (31.1 kg) 144 lb (65.5 kg) 106 lb (48.3 kg) 127 lb (57.7 kg)
BIG V ™ / MAX JAX ™ I & II HEAD STYLES
	781381 781382 781383 781394 781397 781406 781407	BV/MJ – Large Roller BV/MJ – SS Sleeves BV/MJ – Ball Trans BV/MJ – Rubber Whls BV/MJ – SS Ball Trans BV/MJ – Roller BV/MJ – SS Roller	2,000 lb (900 kg) 2,500 lb (1,135 kg) 1,000 lb (450 kg) 1,000 lb (450 kg) 1,000 lb (450 kg) 2,000 lb (900 kg) 2,000 lb (900 kg)	4″ (100 mm) 4″ (100 mm) 3/8″ (9 mm) 4″ (100 mm) 3/8″ (9 mm) 4″ (100 mm) 4″ (100 mm)	36″ (900 mm) 36″ (900 mm) 36″ (900 mm) 36″ (900 mm) 36″ (900 mm) 36″ (900 mm) 36″ (900 mm)	NA				8 lb (3.6 kg) 8 lb (3.6 kg) 8 lb (3.6 kg) 8 lb (3.6 kg) 5 lb (2.3 kg) 8 lb (3.6 kg) 8 lb (3.6 kg)