Mathey Dearman MSA User manual

ENGLISH
LANGUAGE
ENGLISH
LANGUAGE
MSA SADDLE MACHINE
PARTS AND OPERATING MANUAL
PART NO: 03-0100-00 / 03-0100-SO1
JUNE 2022
Po Box 472110, Tulsa, OK 74147 USA
Toll Free: 800-725-7311 / 918-447-1288 office
918-447-0188 fax
www.mathey.com
MSA Saddle Machine
Parts & Operating Manual
Part Number: 03-0100-000 / 03-0100-S01
REVISED: February 17, 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 Spacers on the MSA Machine Saddle ………………………………………………….. 7
Picture 1 Spacer Storage Box ……………………………………………………………………………………………. 7
Picture 2 Installation of Spacer ……………………………………………………………………………………………. 7
Figure 1 Spacer Configurations ……………………………………………………………………………………………. 8
Table 1 Spacer Part Identification ……………………………………………………………………………………………. 8
4.0 Installation of Saddle Machine on Pipe ………………………………………………………………… 8
Picture 3 Closing Boomer ………………………………………………………………………………………………………….. 8
Figure 2 Boomer Assembly Parts Configuration …………………………………………………………………. 9
Table 2 Boomer Assembly Parts Identification …………………………………………………………………. 9
Figure 3Torch Arm & Torch Carrier Configuration …………………………………………………………………. 9
Table 3 Torch Arm & Torch Carrier Parts Identification ……………………………………………………. 10
5.0 Installation of Torch Arm, Torch Carrier Assembly and Torch ……………………………………… 10
Picture 4 Installation of Torch Arm ……………………………………………………………………………………………… 10
Picture 5 Installation of Wing Nut ……………………………………………………………………………………………… 10
6.0 The Manual Cutting Process ……………………………………………………………………………….. 11
7.0 The Motorized Cutting Process ……………………………………………………………………………….. 12
Picture 6 Face of Motor Control Box ……………………………………………………………………………….. 12
Picture 7 End of Motor Control Box ……………………………………………………………………………….. 12
Picture 8 Cable, Motor Control Box to Stepper Motor ………………………………………………………………….. 13
Note on Back Beveling ……………………………………………………………………………………………… 14
Figure 4 MSA Saddle Machine Parts Configuration ………………………………………………………………….. 15
Table 4 MSA Saddle Machine Parts Identification ………………………………………………………………….. 15
Figure 5 Single Bearing Bracket Configuration ………………………………………………………………….. 16
Table 5 Single Bearing Bracket Parts Identification ………………………………………………………………….. 16
Figure 6 Double Bearing Bracket Parts Configuration ………………………………………………………………….. 16
Table 6 Double Bearing Bracket Parts Identification ………………………………………………………………….. 16
Figure 7 Stepper Motor Component Configuration ………………………………………………………………….. 17
Table 7 Stepper Motor Component Identification ………………………………………………………………….. 18
Table 8 Trouble Shooting ……………………………………………………………………………………………………………. 19
8.0 Maintenance ……………………………………………………………………………………………………………. 20
8.1 Timing the Ring Gear to the Pinion Gear ………………………………………………………………….. 20
8.2 Installation of a New Drive Chain ………………………………………………………………………………... 21
8.3 Timing of the Ring Gear of Saddle Machine with Stepper Motor ………………………... 21
8.4 Replacement of drive chain of Saddle Machine with Stepper Motor ………………………… 22
8.5 Installation of the Stepper Motor Kit ………………………………………………………………….. 22
8.6 Repair of the Single and Double Bearing Bracket ……………………………………………………. 23
8.7 Storage …………………………………………………………………………………………………………………………. 23
9.0 Limitations …………………………………………………………………………………………………………… 23
10.0 Machine Safety …………………………………………………………………………………………………………… 24
11.0 Use Condition …………………………………………………………………………………………………………… 24
11.1 Condition of use ……………………………………………………………………………………………………………. 24
11.2 Use of the Saddle Machine not Allow by The Manufacturer ………………………………………. 24
12.0 Disposal of Saddle Machine ………………………………………………………………………………… 24
12.1 General Information ………………………………………………………………………………………………. 24
12.2 Composition of the Major Components ………………………………………………………………….. 24
13.0 Warranty ……………………………………………………………………………………………………………. 24
Table 9 Commercial Pipe Sizes ……………………………………………………………………………………………… 24

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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 any electronics.
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.
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.

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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 Manganese Silver
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.
•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:
•Lead from lead-based paint.
•Crystalline silica from bricks and cement and other masonry products.
•Arsenic 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.
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.

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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. Machines may use hard stops as part of normal setup, while in motion these stops may be contacted
creating a crush point. Do not allow hoses, cords or other nearby items to come in contact with the machine.
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 and drive chains. 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.
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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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, Battery march
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

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2.0 GENERAL INFORMATION
2.1 MSA 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 2” / 50.8, 3”/76.2mm and 4”/101.6mm horizontal or vertical nominal size API line pipe. The machine
comes with Spacers for 2” / 50.8 and 3”/76.2mm pipe. The saddle is placed on the pipe without spacers for cutting
4”/101.6mm. Spacers are available for other pipe or tubing sizes within the machine cutting range.
2.2 Operator Training – The Operator requires no special 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 SPACER ON THE MSA SADDLE MACHINE
3.1 Select the correct spacer for pipe being cut. The saddle is placed on the pipe without spacers for cutting 4”/101.6mm
pipe. (See Figure 1)
Picture 1 – Spacer Storage Box
3.2 Place the 1st spacer on the inside of the front saddle and align the threaded hole in the spacer with the hole in the
front of the saddle.
Picture 2 – Installation of Spacer
3.3 Secure Spacer to the Saddle by placing 1/4-20 X 5/8” machine screw through the hole in the top side of the saddle
and threading it into the Spacer. The machine screw does not have to be tightened with a wrench as the purpose of
the screw is to secure the spacer bolt to the saddle.
3.4 Repeat procedure for rear spacer
The correct Spacer length (between outside diameter of pipe and inside diameter of saddle) is 1-1
/16” (27mm).
Bore (inside diameter) of MSA
Machine Saddle
4-1/2”
(114mm)
Subtract actual OD of pipe
2-3/8"
(60mm)
Difference
2-1/8”
(54mm)
Divide Difference by two (2)
2-1/8” ÷ 2 = 1-1/16”
(27mm

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Figure 1: Spacer Configuration for 2”, & 3” pipe
Table 1 – Spacer Identification
4.0 INSTALLATION OF THE MSA SADDLE MACHINE OF THE PIPE
4.1 Place the MSA Machine Saddle squarely on the pipe, as close as possible to the cut line. The front and back spacers
should make full contact on the pipe.
4.2 Place the Eye of the Boomer Assembly (Figure 2 item 2) over 1/4-20 x ¼” Socket Head Cap Screw (Figure 4 item 9)
located on the Saddle (Figure 4 Item 1).
4.3 Tighten the Thumb Screw (Figure 2 Item 3) of the Boomer Assembly (Figure 2) to secure the machine to the pipe.
Warning: Improper tensioning of the boomer assembly or failure to latch the boomer assembly
may result in injury.
ITEM # PART DESCRIPTION PART # QUANTITY REQUIRED
1 Spacer for 2” pipe (51 mm) 03-0109-002 2
2 Spacer for 3” pipe (73 mm) 03-0109-004 2
3 Machine Screw, 1/4-20NC X 5/8” 14-14C0-058 1
4 MSA Spacer Kit 03-0MSA-KIT 1
Picture 3 – Closing Boomer

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Figure 2: Boomer Assembly Part # 03.0100.024
Table 2 – Boomer Assembly Parts Identification
Figure 3: Torch Arm Part Number: 03-0101-001
Torch Carrier Assembly Part #: 03-0100-002
ITEM # PART DESCRIPTION PART # QUANTITY
1
Strap
03-0100-025
1
2
Eye
03-0100-027
1
3
Thumb Screw
03-0100.026
1
4
Hex Head Cap Screw 1/4” x 1-1/4”
10-14C0-114
1
5
Nut, hex, 1/4”, 20NC
14-14C0-000
1
WARNING:
Be careful not to get finger caught between the latch handle and boomer
frame.

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Table 3–Torch Arm and 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
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5.0 INSTALLLATION OF THE TORCH ARM, TORCH CARRIER ASSEMBLY AND TORCH
5.1 Install Torch Arm (Figure 3, Item A) over the two threaded studs (Figure 4 item 13) in the face of the MSA Machine
Ring Gear (Figure 4 Item 3).
Picture 4 – Installation of Torch Arm on Threaded Stud
5.2 Secure the Torch Arm (Figure 3 item A) to the Ring Gear (Figure 4 item 3) with the wing nuts (Figure 4 item 14)
provided in the Spacer Bolt Box.
Picture 5 – Installation of the Wing Nut
5.2 Remove the Clamp (Figure 3 Item 3) from the torch Carrier Assembly (Figure 3 Item B).
5.3 Place the Torch Carrier Assembly (Figure 3 item B) on the Torch Arm (Figure 3 item A) with hole for Torch of
the Torch Clamp (Figure 3 Item 2) nearest the ring gear.
NOTE: For the squarest cut place the torch as close to the Ring Gear (Figure 4 item 3) as possible.
5.4 Reinsert Thumbscrew (Figure 3 Item 6) through the hole in the base of the clamp base (Figure 3 item 1) and
thread it into the Clamp (Figure 3 item 3) securing the Torch Carrier Assembly to the Torch Arm.

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5.5 The Torch Clamp Base (Fig. 3 Item 1) is marked 0, 60, and 90. Use “0” Position for square cuts (no bevel).
Positions 60 and 90 make the appropriate bevel to produce a “V” Groove of 60 and 90 degrees respectively when
the two pipe ends are butted together.
5.6 Select the correct Cutting tip for the wall thickness and fuel gas per the torch manufactures instructions.
5.7 Insert 10” Long 1 3/8” diameter Machine Oxy/fuel or Plasma Machine Torch (not supplied) into Torch Clamp
(Fig. 3, Item 2) and adjust torch tip to pipe height per the torch manufacturer instructions and tighten the
Thumbscrew (Fig. 3, item 6) securing the Torch in the Torch Carrier Assembly.
NOTE:A 10” long Oxy/fuel or plasma machine torch is required for the MSA Saddle Machine to cut all pipes within
its range.
6.0 THE MANUAL CUTTING PROCESS
6.1 Rotate Torch one full turn around the pipe to be sure torch tip will maintain the same distance around the pipe.
NOTE: If the torch tip contacts the pipe at any point during its rotation either the incorrect spacer bolts were selected
or the pipe is oversize or out of round. If the distance of the torch tip is greater at the 6:00 position, either the
incorrect spacer bolts were selected or the pipe is undersize or out of round.
If using the Plasma Machine Torch, skip to step 6.7 after completing 6.1
6.2 Connect the gas hose from the fuel regulator to the left hand thread port 10” long Oxy/fuel per the manufacturer’s
instructions.
6.3 Connect the oxygen hose from the oxygen regulator to the right hand thread port 10” long Oxy/fuel per the
manufacturer’s instructions.
6.4 Adjust the oxygen and fuel gas regulator per the regulator manufacturer’s instructions.
6.5 Light the cutting torch per the torch manufacturer instructions.
NOTE: If the pipe is coated with Polyurethane, Carbo-Zinc, and Epoxy or is heavily rusted it will require that the coating be
burnt off or removed by some other method in order to achieve a quality cut.
6.6 Follow the torch manufacturer’s instructions for preheating the pipe.
6.7 While rotating the machine torch around the pipe, move the cutting oxygen valve to the ON position to penetrate the
pipe per the torch manufacturer’s instructions (if using the Plasma Machine torch, activate per the torch manufacturer
instructions).
NOTE: If the torch penetrates the pipe without the machine being rotated it will create a notch in the bevel that is
unacceptable to most welding codes.
6.8 Rotate the torch around the pipe until the cut is complete.
6.9 If using a Plasma torch, turn off per the torch manufacturer instructions. If using an Oxy/fuel torch, proceed to steps
6.10-6.12.
6.10 Rotate the cutting oxygen valve of the cutting torch to the OFF position per the torch manufacturer’s instructions.
6.11 Close the fuel and oxygen valve of the torch per the torch manufacturer’s instructions.
WARNING: The hose must not be drawn through the molten slag produced by the cutting
process.
WARNING: The oxygen and fuel hoses must be connected to the right port on the machine torch.
Failure to do so may result in serious injury.
WARNING: Goggles, gloves, mask and other appropriate safety attire must be worn during the
cutting process.
WARNING: Keep hands and clothing away from the gearing as it will cause serious injury.

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6.12 Close the valve on the Oxygen and fuel gas bottles if no further cuts are to be made per the torch manufacturers
instructions.
7.0 THE MOTORIZED CUTTING PROCESS
7.1 Installation of Torch Arm, Torch Carrier Assembly and Oxy/fuel or Plasma Torch per instruction in 5.0
7.2 Depress the Emergency Stop Switch.
7.3 Connect the Motor Cable to surface mount connector of the Motor Control Box.
7.4 Connect the other end of the motor cable to the motor assembly.
NOTE: Verify the cable lock feature is engage at both ends of the motor cable.
NOTE: If using a plasma torch system, connect the plasma cable between the Motor Control Box and the plasma
torch system in the same manner. Verify the cable lock feature is engaged at both ends.
Make sure the Plasma Switch is in the “Off” position.
7.5 Connect the Motor Control Box power cable to the AC electrical receptacle.
7.6 Twist to release the Emergency Stop Switch.
7.7 The digital screen will light with the following.
991 – Indicates that a NEMA 23 motor is in use.
992 – Indicates that a NEMA 34 motor is in use.
993 – Indicates that a heavy-duty NEMA 34 motor is in use.
994 & 995 – Check cable connection at Motor Control Box and Motor.
999 – Indicates the Directional Control Switch is in the “Forward” or “Reverse” position. Move to the “Off” position.
7.8 If no faults are present after the motor number appears, the percent of maximum speed will be displayed in the
window.
7.9 Move the Directional Control Switch to the “Forward” or “Reverse” direction.
7.10 Depress the Speed Control Switch until the percent of motor speed reads about 32% or machine speed or control of
the machine can be maintained should an emergency arise.
WARNING
WARNING:The pipe and debris from the cutting process are extremely hot and can cause
Picture 7 – Motor Control Box End View
Picture 6 – Motor Control Box Face View
Part Number: 03-0203-008
WARNING: Motor Control Box is designed for use with single phase 90 -240 volts alternating
current (AC). Use of a higher current will result in serious injury or death
WARNING: Motor Control Box is not designed for use with direct current (DC). Connection of the
Motor Control Box to direct current will result in serious injury or death.
WARNING: The pipe and debris from the cutting process are extremely hot and cause serious
injury or death.

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7.11 Rotate Torch one full turn around the pipe to be sure torch tip will
maintain the same distance around the pipe.
NOTE: If the torch tip contacts the pipe or is further away from
the pipe at any point during its rotation, either the incorrect spacer
bolts were selected or the pipe is oversize, undersize or out of round.
7.12 Depress the Emergency Stop Switch.
7.13 Disconnect the Motor Control Box power cable from the AC electrical
receptacle. If using a Plasma Torch, skip to step 7.17.
7.14 Connect the gas hose from the fuel regulator to the left hand thread port 10”
long Oxy/fuel per the manufacturer’s instructions.
7.15 Connect the oxygen hose from the oxygen regulator to the right hand thread port 10” long Oxy/fuel per the
manufacturer’s instructions.
7.16 Adjust the oxygen and fuel gas regulator per the regulator manufacturer’s instructions.
7.17 Connect the Motor Control Box power cable to the AC electrical receptacle.
7.18 Twist to release the Emergency Stop Switch.
7.19 Verify the percent of maximum speed is displayed in the window.
7.20 Depress the Speed Control Switch until the percent of motor speed reads about 32% so control of the machine can be
maintained should an emergency arise.
7.21 Move the Directional Control Switch to the “Forward” or “Reverse” direction. If using a Plasma Torch, skip to step
7.24
7.22 Light the cutting torch per the torch manufacturer instructions.
NOTE: If the pipe is coated with Polyurethane, Carbo Zinc, and Epoxy or is heavily rusted it will require that the coating be
burnt off or removed by some other method in order to achieve a quality cut.
7.23 Follow the torch manufacturer’s instructions for preheating the pipe.
7.24 While the machine is rotating around the pipe, move the cutting oxygen valve to the ON position to penetrate the pipe
per the torch manufacturer’s instructions.
NOTE: If using a plasma torch in conjunction with the Motor Control Box, depress the Plasma On / Off button on the
Motor Control Boxes at this time to turn the plasma torch on. (The plasma cable is designed for use with a Hypertherm,
Thermal Dynamics, Victor or new ESAB plasma system.)
NOTE: If the torch penetrates the pipe without the machine being rotated it will create a notch in the bevel that is
unacceptable to most welding codes.
7.25 Adjust the torch travel speed with Speed Control Switch until a quality cut is achieved.
7.26 Rotate the torch around the pipe until the cut is complete.
7.27 If using an Oxy/fuel torch, rotate the cutting oxygen valve of the cutting torch to the OFF position per the torch
manufacturer’s instructions. If using a Plasma torch, it will be necessary to depress the Plasma On / Off button on the
Motor Control Box to turn the torch off.
7.28 Depress the Emergency Stop Switch.
7.29 If using a Plasma torch, skip to step 7.32
7.30 Close the fuel and oxygen valve of the torch per the torch manufacturer’s instructions.
7.31 Close the Oxygen and fuel valve on the gas bottles per the torch manufacturer’s instructions.
WARNING: The Oxygen and fuel gas hoses must not be drawn through the molten slag produced by
the cutting process
WARNING: The oxygen and fuel hoses must be connected to the right port on the machine torch.
Failure to do so may result in serious injury.
WARNING: Goggles, gloves, mask and other appropriate safety attire must be worn during the
cutting process.
WARNING: Keep hands and clothing away from the gearing as it will cause serious injury.
Picture 8 – Motor Cable
Part Number: 03-0203-200

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7.32 Disconnect the Motor Control Box power cable from the electrical receptacle.
7.33 Move the Directional Control Switch to the “Off” position.
A NOTE ON BACK BEVELING
Remove the torch from the torch carrier assembly. Rotate the Torch Clamp Base and Torch 180 degrees on the Torch Arm and
re-tighten with thumbscrew and clamp. Reinstall the torch into the torch carrier assembly. When back beveling, place Torch as
close to Saddle as possible without placing flame directly on or near Saddle. The Torch is now positioned for back beveling.
WARNING: When back beveling, the cutting flame and “hot” zone of the pipe is directed toward
the operator.
WARNING: The pipe and debris from the cutting process are extremely hot and can cause serious
injury.

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Figure 4: MSA Saddle Machine Parts Configuration Part #03-0100-000
Table 4 – MSA Saddle Machine Parts Identification
ITEM # DESCRIPTION PART # QTY.
1
Saddle
03-0100-006
1
2
Cap Ring
03-0100-008
1
3
Ring Gear
03-0100-007
1
4
Single Bearing Bracket Assembly
03-0100-009
1
5
Double Bearing Bracket Assembly
03-0101-014
1
6
Drive Chain
03-0100-022
1
7
Tie Rod Handle
03-0100-023
1
8
Boomer Assembly
03-0100-024
2
9
Socket Head Cap Screw, 1/4-20NC X 1/4”
11-14C0-014
1
10
Machine Screw, Hex Head, 1/4-20NC X 1/2”
26-14C0-012
2
11
Cap Screw, Hex Head, 1/4-20NC X 1-1/4”
10-14C0-114
1
12
Socket Head Cap Screw, 1/4-20NC X 5/8”
10-14C0-058
8
13
Threaded Stud (not shown)
01-0194-003
2
14
Wing Nut, 5/16”-18NC (not shown)
1W-56C0-000
2

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Figure 5: Single Bearing Bracket Assembly Part # 03-0100-009
Table 5 – Single Bearing Bracket Assembly Parts Identification
Figure 6: Double Bracket Assembly, Part # 03-0100-014
Table 6- Double Bearing Bracket Assembly Parts Identification
ITEM # DESCRIPTION PART # QTY.
1
Bracket
03-0100-010
1
2
Sprocket
03-0100-011
1
3
Pinion Gear
03-0100-012
1
4
Axle
03-0100-013
1
5
Bronze Bushing
01.0210.004
2
6
Socket Set Screw, 1/4-20 X 1/4" lg.
19-14C0-014
1
7
Spring Pin, 1/8” x 3/4" lg.
18-1800-034
1
8
Flat Washer, 3/8"
12.0038.F00
1
9
Grease Zerk, 1/4-28NF
01-0179-014
1
ITEM # DESCRIPTION PART# QTY.
1
Bracket
03-0100-015
1
2
Crank Handle Assembly
03-0100-018
1
3
Crank Pinion
03-0100-017
1
4
Crank Gear and Sprocket
03-0100-016
1
5
Axle
03-0100-013
1
6
Pinion Gear
03-0100-012
1
7
Bronze Bushing
01-0210-004
4
8
Round Head Machine Screw, 1/4-
20 X 1/2" lg.
14-14C0-012
1
9
Flat Washer, 1/4”
12-0014-F00
1
10
Flat Washer, 3/8”
12-0038-F00
1
11
Grease Zerk, 1/4-28NF
01-0179-014
1
12
Spring Pin, 1/8” x 1” lg.
18-1800-100
1
13
Spring Pin, 1/8” x 3/4” lg.
18-1800-034
1
14
Screw, socket set, ¼”- 20NC
19-14C0-010
3

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Figure 7 – Motorized MSA Saddle Machine Parts Configuration

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Table 7 – Motorized MSA Saddle Machine Parts Identification
ITEM #
DESCRIPTION
PART#
QTY.
Stepper Motor Kit (components listed below)
03-0100-SA1
1
Mounting Plate Rear
03-0100-060
1
2
Motor Coupling
03-0100-061
1
3
Mounting Plate Front
03-0100-062
1
4
Handle Spacer
03-0100-063
2
5
Motor Adaptor
03-0100-064
1
6
HANDLE
03-0117-020
1
7
NEMA 23 Motor Stepper Assembly
03-0201-060
1
8
Hex Head Cap Screw, 1/4-20 UNC x 5/8” lg.
10-14C0-058
4
9
Socket Head Cap Screw, #8-32 x 1/2” lg.
11-08C0-012
3
10
Flat Socket Head Cap Screw, 1/4-20 unc x 1” lg.
13-14C0-100
2
11
Socket Head Set Screw, #10-24 x 1/4" lg.
19-10C0-014
1
12
Button Head Socket Cap Screw, #10-24 x 3/4" lg.
26-10C0-034
4
13
Hex Head Cap Screw, 1/4-20 unc x 3/4” long
10-14C0-034
2
14
Hex Nut, Locking
1L-14C0-000
2
15
Motor Control Box with motor and plasma Cable ( not shown)
03-0203-008
1
16
Cable, Stepper Motor to Motor Control Box (not shown)
03-0203-200
1
17
Cable, Plasma Stepper Motor Box (not shown)
03-0203-201
1
18
Connector, NEMA 23 Stepper Motor Assembly (included in
Item 7)
03-0203-115 1

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Table 8 – Trouble shooting – Manual Machine
MANUAL
Symptom Possible Cause(s) Corrective Action
Machine is cutting out
of square
Incorrect Spacers are used
Use only Mathey Spacer.
Customer is cutting tubing.
Contact Mathey Dearman Sales Department for
Spacers for tubing.
Spacers are not in contact with pipe.
Reposition machine so that both Spacers
contact the pipe and re-tighten Boomer.
Torch, Torch Arm or Torch Carrier is loose.
Tighten Wing Nuts or Thumbscrews.
Hoses are binding.
Wrap the Hose one (1) full turn around the
pipe. Rotate the Ring Gear of the machine so
the Hoses unwrap during the cutting process.
Machine has been dropped.
Send the machine to a certified repair station
for resizing Cap Ring, Ring Gear and Saddle.
Torch is at end of Torch Arm.
Move the Torch closer to the Ring Gear.
The Pinion Gears are too shallow in the
large Ring Gear.
Readjust the Pinion Gear so it is at the proper
depth in Ring Gear
Machine hesitates or
stops as the Pinion Gear
enters the Ring Gear.
The timing of the Pinion Gears to the Ring
Gear is out of adjustment.
Readjust the timing of the Pinion Gear to the
Ring Gear per the repair instructions.
The Drive Chain is stretched.
Readjust the Bearing Brackets to eliminate the
slack in the Chain per the repair instructions.
Replace the Drive Chain
MOTORIZED
Machine does not rotate
Bad DC Cable Replace cable
No DC output from motor control box Reset circuit breaker on motor control box
No Power at wall Receptacle Reset circuit breaker at power panel
Emergency stop is depressed Rotate to release emergency stop
Forward and reverse switch is bad
Contact Mathey Dearman
Bad 6 pin connector on motor Contact Mathey Dearman

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8.0 MAINTENANCE
In order to the maximum life of the 1SA Saddle machine, the maintenance should be performed by an authorized Mathey
Dearman Certified Repair Center. The Mathey Dearman Pipe Cutting and Beveling Machine requires only minimal
maintenance; however, these are precision machines. In order to achieve proper results, make sure your machine is
handled with reasonable care and it kept clean and lubricated. The machine should be stored in a protective container
such as a Mathey Dearman Machine Storage Box or the original factory shipping crate during transporting or when not in
use.
The Ring Gear, Pinion Gears, and Drive Chains should be kept clear of slag and other trapped abrasives, especially sand
and dirt. The Saddle, Ring Gear, and Cap Ring should be cleaned weekly and the Ring Gear Track Surfaces should be
coated with Lubriplate 130-AA or equal lubricant weekly under heavy use and before storing. The Drive Chains and
Sprockets should be cleaned regularly and coated with a film of a light oil or lubricant such as WD-40 or equal. Lithium
Grease should be applied to the Grease Zerk (Figure 5 item 9) of the Single Bearing Bracket (Figure 5) and to the Grease
Zerk (Figure 6 item 11) of the Double Bearing Bracket (Figure 6) weekly.
Contact Mathey Dearman at 918-447-1288, should any questions arise that are not covered in the manual
8.1 Timing the Ring Gear to the Pinion Gears of a Manual MSA Saddle Machine
8.1.1 Remove the Tie Rod Handle (Figure 4 item 7) from the Single and Double Bearing Brackets (Figure 4 item 4 & 5) by
removing Hex Head Cap Screws (Figure 4 item 10) with a 7/16" wrench.
8.1.2 Using a 1/8” allen wrench loosen the 2 Socket Set Screws (Figure 5 item 6) in the Sprocket of the Single Bearing
Bracket (Figure 5).
8.1.3 Rotate the Ring Gear (Figure 4 item 3) clockwise (as viewed from the front of the machine) until the gap in the Ring
Gear is at the 11:00 Position and off the Pinion Gear (Figure 5 item 3) of the Single Bearing Bracket (Figure 5) or until
the Pinion Gear does not make contact with the Ring Gear (Figure 4 item 3).
8.1.4 Rotate the Sprocket (Figure 5 item 2) on the axle (Figure 5 item 4) of the Single Bearing Brackets (Figure 5) to make
sure it is loose on the axle.
8.1.5 Rotate the Ring Gear (Figure 4 item 3) clockwise (as viewed from the front of the machine) until the gap in the Ring
Gear is at the 12:00 Position.
8.1.6 Adjust the Pinion Gear (Figure 5 item 3) of the Single Bearing Brackets (Figure 5) as needed so that it enters the Ring
Gear (Figure 4 item 3) without hesitation.
Note: When the Pinion Gear (Figure 5 item 3) enters the Ring Gear (Figure 4 item 3) it should not suddenly pull the
Ring Gear. As the Pinion Gear (Figure 5 item 3) leaves the Ring Gear (Figure 4 item 3) it should not suddenly push the
Ring Gear.
8.1.7 Check the Pinion Gear (Figure 5 item 3) of the Single Bearing Brackets (Figure 5) and the Pinion Gear (Figure 6 item 6)
Double Bearing Bracket (Figure 6) so that they are evenly spaced in the teeth of the Ring Gear.
8.1.8 Tighten the Hex Head Cap Screws (Figure 4 item 12) on both sides of the Single Bearing Bracket Assembly Figure using
a 7/16” wrench.
8.1.9 Tighten of the 1 Socket Head Set Screws (Figure 5 item 6) in the Sprocket (Figure 5 item 2) of the Single Bearing
Bracket Assembly (Figure 5).
8.1.10 Rotate the Ring Gear (Figure 4 item 3) one (1) full revolution in the clockwise and counterclockwise direction checking
the entry of the Ring Gear (Figure 4 item 3) into the Pinion Gears (Figure 5 item 3 & Figure 6 item 6).
Note: The entry of the Pinion Gears into the Ring Gear should be smooth and without hesitation.
Note: There should be no more than .005 - .010” / .12 - .25mm of play between the Pinion Gear (Figure 5 item 3) of
the Single Bearing Bracket (Figure 5) and the Pinion Gear (Figure 6 item 6) Double Bearing Bracket (Figure 6) and the
Ring Gear (Figure 4 item 3) so that they are evenly spaced in the teeth of the Ring Gear (Figure 4 item 3).
8.1.11 If entry of the Pinion Gears (Figure 5 item 3 & Figure 6 item 6) into the Ring Gear (Figure 4 item 3) is satisfactory
tighten the 2nd Set Screw (Figure 5 item 6) in the Sprocket (Figure 5 item 2).
8.1.12 Align the threaded holes in the Tie Rod Handle (Figure 4 item 7) with the holes in the Single and Double Bearing
Bracket Assemblies (Figure 5 item 1 & Figure 6 item 1) and install and tighten the Hex Head Cap Screws (Figure 4 item
10) with a 7/16" wrench.
8.1.13 Rotate the Ring Gear (Figure 4 item 3) one (1) full revolution in the clockwise and counterclockwise direction checking
the entry of the Ring Gear (Figure 4 item 3) into the Pinion Gears (Figure 5 item 3 & Figure 6 item 6) to insure the
entry of the Pinion Gears into the Ring Gear is smooth and without hesitation.
8.1.14 The machine is now ready for the cutting operation.