Mathey Dearman 8SA User manual

ENGLISH
LANGUAGE
ENGLISH
LANGUAGE
8SA SADDLE MACHINE
PARTS AND OPERATING MANUAL
PART NO: 03-0108-000 / 03-0108-SO1
JUNE 2022
WHERE THERE IS PIPE, THERE’S MATHEY
Po Box 472110, Tulsa, OK 74147 USA
Toll Free: 800-725-7311 / 918-447-1288 office
918-447-0188 fax
www.mathey.com
8SA SADDLE MACHINE PARTS AND
OPERATING MANUAL
Part Number: 03-0108-000 / 03-0108-S01
REVISED: September 16, 2016
©Mathey Dearman, Inc.
For future reference, record your Saddle Machine model and serial numbers here:
Saddle Machine Model ________SA Serial #M_______________ Manual ____ Motorized ____
WHERE THERE IS PIPE, THERE’S MATHEY
Po Box 472110, Tulsa, OK 74147 USA
Toll Free: 800-725-7311 / 918-447-1288 office
918-447-0188 fax
www.mathey.com
8SA SADDLE MACHINE PARTS AND
OPERATING MANUAL
Part Number: 03-0108-000 / 03-0108-S01
REVISED: September 16, 2016
©Mathey Dearman, Inc.
For future reference, record your Saddle Machine model and serial numbers here:
Saddle Machine Model ________SA Serial #M_______________ Manual ____ Motorized ____

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Table of Contents
Item Subject Page#
1.0 Safety …………………………………………………………………………………………………………………………….. 3
2.0 General Information ………………………………………………………………………………………………………. 7
3.0 Installation of the Spacer Bolts ………………………………………………………………………………………. 7
Picture 1 Spacer Bolt Installation ………………………………………………………………………………………………….. 7
Figure 1 Spacer Bolt Configuration for 40”, 42” & 48” …………………………………………………………………. 8
Table 1 Spacer Bolt Part Identification ………………………………………………………………………………………… 8
4.0 Installation of the Saddle Machine on the Pipe …………………………………………………………….. 8
Picture 2 Closing the Boomer Latch ………………………………………………………………………………………………. 9
Figure 2 Boomer Assembly Parts Configuration …………………………………………………………………………… 9
Table 2 Boomer Assembly Parts Identification ……………………………………………………………………………. 9
Figure 3Torch Arm & Torch Carrier Configuration ………………………………………………………………………. 10
Table 3 Torch Arm & Torch Carrier Parts Identification ……………………………………………………………… 10
5.0 Installation of the Torch Arm, Torch Carrier Assembly and Torch …………………………………..10
Picture 3 Installation of Torch Arm on the Threaded Stud …………………………………………………………….. 10
Picture 4 Installation of Wing Nut …………………………………………………………………………………………………. 11
5.1 Installation of the Extension Plate, Torch Arm, Torch Carrier Assembly, and Torch ………… 11
Figure 4 Extension Plate Configuration ………………………………………………………………………………………… 11
Table 4 Extension Plate Parts List ……………………………………………………………………………………………….. 11
Picture 5 Installation of Extension Plate Spacer …………………………………………………………………………….. 12
Picture 6 Extension Plate attached to Extension Plate Spacer ……………………………………………………. 12
6.0 The Manual Cutting Process …………………………………………………………………………………………. 12
7.0 The Motorized Cutting Process ………………………………………………………………………………………. 13
Picture 7 Motor Control Box Face View ………………………………………………………………………………………… 13
Picture 8 Motor Control Box End View …………………………………………………………………………………………. 13
Picture 9 Cable, Motor Control Box to Motor ………………………………………………………………………………… 14
A Note on Back Beveling ………………………………………………………………………………………………… 15
Figure 5 Manual 8SA Saddle Machine Parts Configuration …………………………………………………………… 16
Table 5 Manual 8SA Saddle Machine Parts Identification …………………………………………………………….17
Figure 6 Single Bearing Bracket Configuration ……………………………………………………………………………… 18
Table 6 Single Bearing Bracket Parts Identification ……………………………………………………………………… 18
Figure 7 Double Bearing Bracket Parts Configuration …………………………………………………………………… 19
Table 7 Double Bearing Bracket Parts Identification …………………………………………………………………… 19
Figure 8 Motorized 8SA Saddle Machine Parts Configuration ………………………………………………………. 20
Table 8 Motorized 8SA Saddle Machine Parts Identification ……………………………………………………… 21
Table 9 Trouble Shooting ……………………………………………………………………………………………………………. 22
8.0 Maintenance …………………………………………………………………………………………………………………. 22
8.1 Timing the Ring Gear to the Pinion Gears of the Manual Machine …………………………………. 23
8.2 Maintenance and Installation of the Double Bearing Bracket Assembly ………………………… 24
8.3 Maintenance and Installation of the Single Bearing Bracket Assembly ………………………… 24
8.4 Installation of a new Drive Chains on the Manual Machine …………………………………………… 25
8.5 Timing the Ring Gear to the Pinion Gears of the Stepper Motor Driven Machine …………… 26
8.6 Installation of a new Drive Chains on the Stepper Motor Driven Machine ……………………… 27
8.7 Installation of the Stepper Motor Kit ……………………………………………………………………………… 27
8.8 Storage …………………………………………………………………………………………………………………………… 28
9.0 Limitations ……………………………………………………………………………………………………………………… 29
10.0 Machine Safety ………………………………………………………………………………………………………………. 29
11.0 Condition of use ……………………………………………………………………………………………………………. 29
11.1 Condition of use ……………………………………………………………………………………………………………. 29
11.2 Use of the Saddle Machine not allowed by the manufacturer ………………………………………… 29
12.0 Disposal of the Saddle Machine ……………………………………………………………………………………… 29
12.1 General Information …………………………………………………………………………………………………… 29
12.2 Composition of Major Components ………………………………………………………………………………. 29
13.0 Warranty ……………………………………………………………………………………………………………………… 29
Table 10 Commercial Pipe Sizes …………………………………………………………………………………………………… 30

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1.0 SAFETY
ELECTRIC SHOCK CAN KILL
Electric Shock can injure or kill. Saddle machine operation and many cutting processes use or produce high voltage
electrical energy. This electric energy can cause severe or fatal shock to the operator or others in the work place.
•Never touch any parts that are electrically “live” or “hot”
•Wear dry gloves and clothing. Insulate yourself from the work piece or other parts of the plasma cutting circuit.
•Repair or replace all worn or damaged parts.
•Extra care must be taken when work place is moist or damp.
•If installing a motorized saddle machine, install and maintain equipment according to NEC (National Electric Code),
refer to publications section in this manual.
•Disconnect power source before performing any service or repairs.
•Read and follow all the instructions in the operating manuals.
FIRE AND EXPLOSION
Hot slag, sparks, oxygen-fueled cutting flame or the plasma arc can cause fire and explosion.
•Be sure there are no combustible or flammable materials in the workplace. Any material that cannot be removed
must be protected.
•Ventilate all flammable or explosive vapors from the workplace.
•Do not cut or weld on containers that may have held combustibles.
•Provide a fire watch when working in an area where fire hazards may exist.
AUTOMATIC OPERATION
The Saddle Machine may operate automatically without warning. Keep the immediate area around the Saddle Machine
clear of materials that may cause interference. Keep area clear of bystanders. All untrained persons should not work on or
near a saddle machine. Do not leave the saddle machine unattended while power is on to the Motor Control Box.
NOISE
Noise can cause permanent hearing loss. Plasma arc cutting, oxy/fuel torch cutting, and grinding can cause noise levels
that exceed safe limits. You must protect your ears from loud noise to prevent permanent loss of hearing.
•To protect your hearing from loud noise, wear protective earplugs and/or ear muffs. Protect others in the workplace.
•Noise levels should be measured to be sure the decibels (sound) do not exceed safe levels.
•For information on how to test for noise refer to the publications section of this manual
GASES, DUST, AND FUMES
Gases and fumes produced during the cutting process can be dangerous to your health.
•Keep all fumes and gases away from the breathing area. Keep your head out of the cutting fume plume.
•Use an air-supplied respirator if ventilation is not adequate to remove all fumes and gases.
•The kinds of fumes and gases from cutting depend on the kind of metal being cut, coatings on the metal, and the
different processes. You must be very careful when cutting or welding any metals which may contain the following:
Antimony Cadmium Lead Selenium Arsenic Chromium ManganeseSilver
Barium Cobalt Mercury Vanadium Beryllium Copper Nickel
Always read the Material Safety Data Sheet (MSDS) supplied with the material you are cutting. The MSDS will give you the
information regarding the kind and amount of fumes and gases that may be produced from cutting and those that may be
dangerous to your health
•For information on how to test for fumes and gases in your workplace refer to publications section of this manual.
•Use special equipment, if needed, to capture fumes and gases.
•Do not use in an area where combustible or explosive gases or materials are located.

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•Phosgene, a toxic gas, is generated from the vapors of chlorinated solvents and cleansers. Remove all sources of these
vapors.
•This product, when used for welding or cutting, produces fumes or gases which contain chemicals known to the State
of California to cause birth defects and, in some cases, cancer. (California Health & Safety Code Sec. 25249.5 et seq.)
•Some dust created by cutting, grinding, drilling, and other construction activities contains chemicals known to cause
cancer, birth defects or other reproductive harm. Some examples of these chemicals are:
oLead from lead-based paint.
oCrystalline silica from bricks and cement and other masonry products.
oArsenic and chromium from chemically-treated lumber (CCA).
•Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to
these chemicals: work in a well-ventilated area, and work with approved safety equipment, such as those dust masks
that are specially designed to filter out microscopic particles.
•Avoid prolonged contact with dust from cutting, grinding, drilling, and other construction activities. Wear protective
clothing and wash exposed areas with soap and water. Allowing dust to get into your mouth, eyes, or lay on the skin
may promote absorption of harmful chemicals.
FLYING DEBRIS
Metal cutting operations can create debris. Use proper eye protection pursuant to ANSI Z87.1 requirements. All persons
operating in the vicinity of Saddle Machine operations should be aware of debris and take necessary precautions. Consult
the publications section of this manual for further information.
PLASMA ARC RAYS
Plasma Arc Rays can injure your eyes and burn your skin. The plasma arc process produces very bright ultraviolet and
infrared light. These arc rays will damage your eyes and burn your skin if you are not properly protected.
•To protect your eyes, always wear a welding helmet or shield. Also, always wear safety glasses with side shields,
goggles or other protective eye wear.
•Wear welding gloves and suitable clothing to protect your skin from the arc rays and sparks.
•Keep helmet and safety glasses in good condition. Replace lenses when cracked, chipped or dirty.
•Protect others in the work area from the arc rays. Use protective booths, screens or shields.
•Use the shade of lens as suggested in the following per ANSI/ASC Z49.1:
HEAVY COMPONENTS
Use caution when lifting or moving the saddle machine. Use team lifting when necessary to avoid personal injury. When
using a mechanical device to move a machine follow all manufacturers’ safety guidelines. Pipe being operated on with the
machine may be heavy. Use all lifting guidelines outlined in Occupational Safety & Health Administration technical manual
Sect. 7, Ch. 1.5. See publications section for additional information.
ELECTRIC AND MAGNETIC FIELDS
Electric current flowing through any conductor causes localized Electric and Magnetic Fields (EMF). Welding and plasma
cutting current creates EMF fields around cables and machines. EMF fields may interfere with some pacemakers, and
operators and observers having a pacemaker should consult their physician before operation. Exposure to EMF fields may
also have other health effects which are now not known.
PINCH AND CRUSH POINTS
Mathey Dearman Saddle Machines in motion can create pinch points in normal operation. Be aware of all areas that may
potentially be a hazard when the Saddle Machine is in motion. Avoid working on the machine while the control electronics
are energized. Do not allow hoses, cords or other nearby items to come in contact with the machine.

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HOT MATERIALS
The process of plasma cutting creates an arc of electricity that can be up to 45,000°F (25,000°C). Oxygen-fuel cutting flame
can be up to 6,330°F (3,500°C). As a result, cut materials will be very hot after cutting. Use extreme care when handling
recently cut materials. Proper protective apparel such as protective gloves should be worn when handling recently cut
material. Material handling devices should also be considered. It is recommended to allow material to cool completely
before handling.
MECHANICAL DRIVES
Mechanical drives are in use while the Saddle Machine is in operation. These drives use gears, chains, and drive screws.
These components can move at high speed. Do not attempt to service, adjust, or otherwise touch these components while
the machine is on. Secure loose articles of clothing and cables to prevent entanglement.
AIR LINES UNDER PRESSURE
Certain tools and equipment use compressed air lines to operate. These air lines are under pressure. Hot sparks or flying
debris may cause damage to these lines. Ensure that the air lines are kept free of punctures, burns, or other damage or
defects that could cause failure. Inspect air lines periodically and repair or replace damaged lines.

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PUBLICATIONS
Refer to the following standards or their latest revisions for more information:
• OSHA, SAFETY AND HEALTH STANDARDS, 29CFR 1910, obtainable from the Superintendent of Documents, U.S. Government
Printing Office, Washington, D.C. 20402
• ANSI Standard Z49.1, SAFETY IN WELDING AND CUTTING, obtainable from the American Welding Society, 550 N.W. Lejeune
Rd, Miami, FL 33126
• NIOSH, SAFETY AND HEALTH IN ARC WELDING AND GAS WELDING AND CUTTING, obtainable from the Superintendent of
Documents, U.S. Government Printing Office, Washington, D.C. 20402
• ANSI Standard Z87.1, SAFE PRACTICES FOR OCCUPATION AND EDUCATIONAL EYE AND FACE PROTECTION, obtainable from
American National Standards Institute, 1430 Broadway, New York, NY 10018
• ANSI Standard Z49.2, FIRE PREVENTION IN THE USE OF CUTTING AND WELDING PROCESSES, obtainable from American
National Standards Institute, 1430 Broadway, New York, NY 10018
• AWS Standard A6.0, WELDING AND CUTTING CONTAINERS WHICH HAVE HELD COMBUSTIBLES, obtainable from American
Welding Society, 550 N.W. Lejeune Rd, Miami, FL 33126
• NFPA Standard 51, OXYGEN-FUEL GAS SYSTEMS FOR WELDING, CUTTING AND ALLIED PROCESSES, obtainable from the
National Fire Protection Association, Batterymarch Park, Quincy, MA 02269
• NFPA Standard 70, NATIONAL ELECTRICAL CODE, obtainable from the National Fire Protection Association, Batterymarch
Park, Quincy, MA 02269
• NFPA Standard 51B, CUTTING AND WELDING PROCESSES, obtainable from the National Fire Protection Association,
Batterymarch Park, Quincy, MA 02269
• CGA Pamphlet P-1, SAFE HANDLING OF COMPRESSED GASES IN CYLINDERS, obtainable from the Compressed Gas
Association, 1235 Jefferson Davis Highway, Suite 501, Arlington, VA 22202
• CSA Standard W117.2, CODE FOR SAFETY IN WELDING AND CUTTING, obtainable from the Canadian Standards Association,
Standards Sales, 178 Rexdale Boulevard, Rexdale, Ontario, Canada M9W 1R3
• NWSA booklet, WELDING SAFETY BIBLIOGRAPHY obtainable from the National Welding Supply Association, 1900 Arch
Street, Philadelphia, PA 19103
• ANSI Standard Z88.2, PRACTICE FOR RESPIRATORY PROTECTION, obtainable from American National Standards Institute,
1430 Broadway, New York, NY 10018
IN ADDITION TO THE ABOVE PROCEDURES, ALL SHOP, NATIONAL AND MANUFACTURER’S SAFETY INSTRUCTION
CONCERNING THE FLAME CUTTING SYSTEM SHOULD BE FOLLOWED. ALL CUTTING OPERATIONS SHOULD BE CONDUCTED IN
THE BEST OF SAFETY CONDITIONS.

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2.0 GENERAL INFORMATION
2.1 The 8SA Saddle Machine is designed to rotate a 1 3/8”/35mm diameter 12” long oxy/fuel or plasma machine torch
to cut and/or bevel 40”/ 1016mm, 42”/ 1067mm and 48” / 1219mm horizontal nominal size API line pipe. The
machine comes with Spacer Bolts for the above list pipe sizes. Spacer bolts are available for other pipe or tubing
sizes within the machine cutting range.
2.2 Operator Training – The Operator requires no training providing they read and understand the parts and operating
manual. The training mainly involves teaching the operator to smoothly and without hesitation rotate the crank
handle so the oxy/fuel or plasma torch produces a smooth even cut around the pipe.
2.3 Maintenance Personnel – Mathey Dearman offers a training course at its facility on the major machine repairs at
no charge. The parts and operating manual contains information concerning the lubrication and minor repair.
3.0 INSTALLATION OF THE SPACER BOLTS
3.1 Select the correct combination of Spacer Bolts and/or spacers for pipe being cut.
3.2 Install the four (4) combinations of Spacer Bolts and Spacers for the pipe to be cut in the four (4) holes in the
machined Saddle (Picture 1), with the Spacer End of the Bolts on the Bore (I.D.) side of the saddle.
3.3 If required, place the spacer on the Spacer Bolt protruding through the top of the Saddle. Secure Spacer Bolts and
Spacers to the Saddle by threading the Hex Nut onto the threaded portion on the topside of Saddle. The hex nut
does not have to be tightened with a wrench as the purpose of the nut is to secure the spacer bolt to the saddle.
40” Pipe 42” Pipe 48” Pipe
Picture 1 – Spacer Bolt Installation
Spacer Bolt Length Calculation
The correct Spacer length (between outside diameter of pipe and inside diameter of saddle) is 3-1/4” (82.5mm).
Bore (inside diameter) of 8SA Machine Saddle
48-1/2”
(1229mm)
Subtract actual OD of pipe 42” (1067mm)
Difference
6-1/2”
(165mm)
Divide Difference by two (2)
6-1/2” ÷ 2 = 3-1/4”
(82.5mm

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Figure 1: Spacer Configuration for 40”, 42” & 48” pipe
Table 1 – Spacer Bolt Part Identification
4.0 INSTALLATION OF THE SADDLE MACHINE ON THE PIPE
4.1 Place Saddle Machine squarely on the pipe, as close as possible to the cut line. All spacer bolts must contact the
pipe.
4.2 Place the hook of the Boomer Assembly (Figure 2 item 1) into the Boomer Eye (Figure 5 Item 9) located on the
Saddle (Figure 5 Item 1).
4.3 Place the Spring Snap (Figure 2 Item 4) into the Boomer Eye (Figure 5 Item 9) on the other side of the Saddle (Figure
5 Item 1).
4.4 To obtain a stable installation of the 8SA Saddle Machine, the Spring Snap (Figure 2 Item 4) of the Boomer Assembly
(Figure 2) must be adjusted on the Chain (Figure 2 item 3) so that the spring (Figure 2 Item 2) is stretched
approximately 1/2" -3/4” (12 - 19mm) when the Boomer Assembly is closed.
4.5 When the Chain is properly adjusted, close the Boomer (Figure 2 item 1).
ITEM # PART DESCRIPTION Length PART # QUANTITY
REQ.
1 Spacer Bolt for 40”/ 1016mm pipe 1/4"/ 6.4mm 03-0110-004 4
2 Spacer Bolt for 42”/ 1067mm pipe 3-1/4”/ 83mm 03-0110-008 4
3 Spacer Bolt for 48”/ 1219mm Pipe 4-1/4”/ 108mm 03-0110-009 4
4 Hex Nut, 1/2 - 13 1H-12C0-000 4
5 Spacer Bolt Kit (includes all of the above) 03-08SA-KIT 1
WARNING: Improper tensioning of the boomer assembly or failure to latch the boomer assembly
may result in injury.

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Picture 2 – Closing Boomer Latch
Figure 2: Boomer Assembly Part # 03-0108-006
Table 2 – Boomer Assembly Parts Identification
ITEM #
PART DESCRIPTION PART # QUANTITY
1 Boomer 01-0258-001 1
2 Spring 01-0184-003 1
3 Chain 01-0577-001 1
4 Spring Snap 01-0258-003 1
WARNING:
Be careful not to get finger caught between the latch handle and boomer frame.

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Figure 3: Torch Arm Part Number: 03-0101-001
Torch Carrier Assembly Part Number: 03-0100-002
Table 3 - Torch Arm and Torch Carrier Parts Identification
ITEM #
PART DESCRIPTION
PART #
QUANTITY
A
Torch Arm
03-0101-001
1
B
Torch Carrier Assembly
03-0100-002
1
1
Torch Clamp Base
03-0100-003
1
2
Torch Clamp
03-0100-005
1
3
Clamp
03-0100-004
1
4
Screw Kit (includes 5, 6 & 7)
03-0100-029
1
5
Thumb Screw, 3/8-16 x 3/4”
22-38TS-034
2
6
Thumb Screw, 3/8-16 x 1”
22-38TS-100
2
7
Flat Washer, 3/8”
12-0038-F00
2
5.0 INSTALLATION OF THE TORCH ARM, TORCH CARRIER ASSEMBLY AND
TORCH
5.0.1 Install Torch Arm (Figure 3, Item A) over the two threaded studs (Figure 5 item 19) located on the face of the Ring
Gear (Figure 5 Item 3) as illustrated in Picture 3.
Picture 3 – Installation of Torch Arm on the Threaded Stud