G-SERIES REGULATORS
PARTS, SERVICE
& REPAIR BULLETIN
G150, GF150, G250,
GF250 & G350
VictorTechnologies.com
Issue Date: October 29, 2015
Manual No: 0056-3764
Revision: AB
WE APPRECIATE YOUR BUSINESS!
Congratulations on your new Victor product. We are proud to have you as our customer and will strive to
provide you with the best service and reliability in the industry. This product is backed by our extensive
warranty and world-wide service network. To locate your nearest distributor or service agency, visit us on
the web at www.VictorTechnologies.com.
This Operating Manual has been designed to instruct you on the correct use and operation of your ESAB
product. Your satisfaction with this product and its safe operation is our ultimate concern. Therefore please
take the time to read the entire manual, especially the Safety Precautions. They will help you to avoid potential
hazards that may exist when working with this product.
YOU ARE IN GOOD COMPANY!
The Brand of Choice for Contractors and Fabricators Worldwide.
Victor, an ESAB brand, is a Global Brand of manual and automation Plasma Cutting Products.
We distinguish ourselves from our competition through market-leading, dependable products that have stood
the test of time. We pride ourselves on technical innovation, competitive prices, excellent delivery, superior
customer service and technical support, together with excellence in sales and marketing expertise.
Above all, we are committed to developing technologically advanced products to achieve a safer working
environment within the welding industry.
!
WARNING
Read and understand this entire Manual and your employer’s safety practices before install-
ing, operating, or servicing the equipment.
While the information contained in this Manual represents the Manufacturer's best judgment,
the Manufacturer assumes no liability for its use.
G-Series Regulators - G150, GF150, G250, GF250, G350
Parts, Service & Repair Bulletin
Service Manual Number 0056-3764
Published by:
Victor Technologies
2800 Airport Rd.
Denton, TX 76208
www.VictorTechnologies.com
Copyright 2015 by ESAB
All rights reserved.
Reproduction of this work, in whole or in part, without written permission of the
publisher is prohibited.
The publisher does not assume and hereby disclaims any liability to any party for
any loss or damage caused by any error or omission in this Manual, whether such
error results from negligence, accident, or any other cause.
For Printing Material Specification refer to Document 47x1909
Original Publication Date: November 21, 2013
Revision Date: October 29, 2015
Record the following information for Warranty purposes:
Where Purchased:_______________________________ __________
Purchase Date:__________________________________ __________
Power Supply Serial #:___________________________ __________
Torch Serial #:___________________________________ __________
Be sure this information reaches the operator.
You can get extra copies through your supplier.
CAUTION
These INSTRUCTIONS are for experienced operators. If you are not fully familiar
with the principles of operation and safe practices for arc welding and cutting equip-
ment, we urge you to read our booklet, “Precautions and Safe Practices for Arc
Welding, Cutting, and Gouging,” Form 52-529. Do NOT permit untrained persons to
install, operate, or maintain this equipment. Do NOT attempt to install or operate this
equipment until you have read and fully understand these instructions. If you do not
fully understand these instructions, contact your supplier for further information. Be
sure to read the Safety Precautions before installing or operating this equipment.
USER RESPONSIBILITY
This equipment will perform in conformity with the description thereof contained in this manual and accompany-
ing labels and/or inserts when installed, operated, maintained and repaired in accordance with the instructions provid-
ed. This equipment must be checked periodically. Malfunctioning or poorly maintained equipment should not be used.
Parts that are broken, missing, worn, distorted or contaminated should be replaced immediately. Should such repair or
replacement become necessary, the manufacturer recommends that a telephone or written request for service advice
be made to the Authorized Distributor from whom it was purchased.
This equipment or any of its parts should not be altered without the prior written approval of the manufacturer.
The user of this equipment shall have the sole responsibility for any malfunction which results from improper use,
faulty maintenance, damage, improper repair or alteration by anyone other than the manufacturer or a service facility
designated by the manufacturer.
!
READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR
OPERATING.
PROTECT YOURSELF AND OTHERS!
TABLE OF CONTENTS
SECTION 1: SAFETY ............................................................................................. 1-1
1.0 Safety Precautions ...................................................................................................... 1-1
SECTION 2:
INTRODUCTION ............................................................................................. 2-1
2.01 How To Use This Manual ............................................................................................2-1
2.02 Equipment Identification .............................................................................................2-1
2.03 Receipt Of Equipment .................................................................................................2-1
2.04 Commonly Use Terms .................................................................................................2-1
SECTION 3: G150, GF150
SPECIFICATIONS ............................................................................................ 3-3
3.01 Light Duty Basic Dimensions ...................................................................................... 3-3
3.02 Exploded View ............................................................................................................3-4
3.03 Parts List ....................................................................................................................3-5
3.04 Repair Parts List .........................................................................................................3-7
SECTION 4: G150, GF150
SERVICE & REPAIR PROCEDURES ....................................................................... 4-1
4.01 Recommended Tools and Supplies for Repair Procedures .........................................4-1
4.02 Cleaning Procedures ................................................................................................... 4-1
4.03 Disassembly Procedures ............................................................................................4-1
4.04 Assembly Procedures .................................................................................................4-2
SECTION 5: G150, GF150
TEST PROCEDURES......................................................................................... 5-1
5.01 Recommended Tools and Supplies for Test Procedures .............................................5-1
5.02 Test & Set Procedures ................................................................................................5-1
SECTION 6: G150, GF150
TROUBLESHOOTING ........................................................................................ 6-1
SECTION 7: G250, GF250 & G350
SPECIFICATIONS ............................................................................................ 7-1
7.01 G250, GF250 MEDIUM DUTY BASIC DIMENSIONS .................................................... 7-1
7.02 G350 HEAVY DUTY BASIC DIMENSIONS ...................................................................7-2
7.03 G250, G350 EXPLODED VIEW ....................................................................................7-3
7.04 PARTS LIST ................................................................................................................7-4
SECTION 8: G250, GF250 & G350
SERVICE & REPAIR PROCEDURES ....................................................................... 8-1
8.01 Recommended Tools and Supplies for Repair Procedures .........................................8-1
8.02 Cleaning Procedures ................................................................................................... 8-1
8.03 Disassembly Procedures ............................................................................................8-1
8.04 Assembly Procedures .................................................................................................8-2
SECTION 9: G250, GF250 & G350
TEST PROCEDURES......................................................................................... 9-1
9.01 Recommended Tools and Supplies for Test Procedures .............................................9-1
9.02 Test & Set Procedures ................................................................................................9-1
VICTOR G-SERIES REGULATOR
Manual 0056-3764 1-1 SAFETY INSTRUCTIONS AND WARNINGS
1.0 Safety Precautions
Users of Victor, an ESAB brand, welding and plasma cutting equipment have the ultimate responsibility for ensuring that
anyone who works on or near the equipment observes all the relevant safety precautions. Safety precautions must meet
the requirements that apply to this type of welding or plasma cutting equipment. The following recommendations should be
observed in addition to the standard regulations that apply to the workplace.
All work must be carried out by trained personnel well acquainted with the operation of the welding or plasma cutting
equipment. Incorrect operation of the equipment may lead to hazardous situations which can result in injury to the operator
and damage to the equipment.
1. Anyone who uses welding or plasma cutting equipment must be familiar with:
- Its operation
- Location of emergency stops
- Its function
- Relevant safety precautions
- Welding and / or plasma cutting
2. The operator must ensure that:
- No unauthorized person stationed within the working area of the equipment when it is started up.
- No one is unprotected when the arc is struck.
3. The workplace must:
- Be suitable for the purpose
- Be free from drafts
4. Personal safety equipment:
- Always wear recommended personal safety equipment, such as safety glasses, flame proof
clothing, safety gloves.
- Do not wear loose fitting items, such as scarves, bracelets, rings, etc., which could become
trapped or cause burns.
5. General precautions:
- Make sure the return cable is connected securely.
- Work on high voltage equipment may only be carried out by a qualified electrician.
- Appropriate fire extinguishing equipment must be clearly marked and close at hand.
- Lubrication and maintenance must not be carried out on the equipment during operation.
Dispose of electronic equipment at the recycling facility!
In observance of European Directive 2002/96/EC on Waste Electrical and Electronic Equipment and its
implementation in accordance with national law, electrical and/or electronic equipment that has reached
the end of its life must be disposed of at a recycling facility.
As the person responsible for the equipment, it is your responsibility to obtain information on approved
collection stations.
For further information contact the nearest ESAB dealer.
Victor can provide you with all necessary cutting protection and accessories.
SECTION 1: SAFETY
VICTOR G-SERIES REGULATOR
SAFETY INSTRUCTIONS AND WARNINGS 1-2 Manual 0056-3764
WARNING
Arc welding and cutting can be injurious to yourself and others.
Take precautions when welding and cutting. Ask for your employer's
safety practices which should be based on manufacturers' hazard
data.
ELECTRIC SHOCK - Can kill.
- Install and earth (ground) the welding or plasma cutting unit in accordance with applica-
ble standards.
- Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.
- Insulate yourself from earth and the workpiece.
- Ensure your working stance is safe.
FUMES AND GASES - Can be dangerous to health.
- Keep your head out of the fumes.
- Use ventilation, extraction at the arc, or both, to take fumes and gases away from your
breathing zone and the general area.
ARC RAYS - Can injure eyes and burn skin.
- Protect your eyes and body. Use the correct welding / plasma cutting screen and filter
lens and wear protective clothing.
- Protect bystanders with suitable screens or curtains.
FIRE HAZARD
- Sparks (spatter) can cause fire. Make sure therefore that there are no inflammable mate-
rials nearby.
NOISE - Excessive noise can damage hearing.
- Protect your ears. Use earmuffs or other hearing protection.
- Warn bystanders of the risk.
MALFUNCTION - Call for expert assistance in the event of malfunction.
READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERAT-
ING.
PROTECT YOURSELF AND OTHERS!
WARNING
Do not use the power source for thawing frozen pipes.
CAUTION
Class A equipment is not intended for use in residential locations
where the electrical power is provided by the public low-voltage
supply system. There may be potential difficulties in ensuring
electromagnetic compatibility of class A equipment in those loca-
tions, due to conducted as well as radiated disturbances.
CAUTION
This product is solely intended for metal removal. Any other use
may result in personal injury and / or equipment damage.
CAUTION
Read and understand the instruction manual before
installing or operating.
!
VICTOR G-SERIES REGULATOR
Manual 0056-3764 2-1 INTRODUCTION
SECTION 2:
INTRODUCTION
2.01 How To Use This Manual
This Service Manual applies to just specification or part numbers
listed on page i.
To ensure safe operation, read the entire manual, including the
chapter on safety instructions and warnings.
Throughout this manual, the words WARNING, CAUTION, DANGER,
and NOTE may appear. Pay particular attention to the information
provided under these headings. These special annotations are
easily recognized as follows:
NOTE!
An operation, procedure, or background
information which requires additional
emphasis or is helpful in efficient operation
of the system.
!
CAUTION
A procedure which, if not properly followed,
may cause damage to the equipment.
!
WARNING
A procedure which, if not properly followed,
may cause injury to the operator or others
in the operating area.
WARNING
Gives information regarding possible
electrical shock injury. Warnings will be
enclosed in a box such as this.
!
DANGER
Means immediate hazards which, if not
avoided, will result in immediate, serious
personal injury or loss of life.
Additional copies of this manual may be purchased by contacting
Victor at the address and phone number in your area listed on
back cover of this manual. Include the Owner’s Manual number
and equipment identification numbers.
Electronic copies of this manual can also be downloaded at no
charge in Acrobat PDF format by going to the Victor web site
listed below
http://www.VictorTechnologies.com
2.02 Equipment Identification
The unit’s identification number (specification or part number),
model, and serial number usually appear on a data tag attached to
the rear panel. Equipment which does not have a data tag such as
torch and cable assemblies are identified only by the specification
or part number printed on loosely attached card or the shipping
container. Record these numbers on the bottom of page i for future
reference.
2.03 Receipt Of Equipment
When you receive the equipment, check it against the invoice to
make sure it is complete and inspect the equipment for possible
damage due to shipping. If there is any damage, notify the carrier
immediately to file a claim. Furnish complete information concern-
ing damage claims or shipping errors to the location in your area
listed in the inside back cover of this manual.
Include all equipment identification numbers as described above
along with a full description of the parts in error.
Move the equipment to the installation site before un-crating the
unit. Use care to avoid damaging the equipment when using bars,
hammers, etc., to un-crate the unit.
2.04 Commonly Use Terms
OUTLET PRESSURE: The pressure measured at the Regulator’s
outlet port.
INLET PRESSURE: The pressure measured immediately at the
Regulatory’s entry.
DROP: A change in outlet pressure from a no-flow to flowing condi-
tion while the inlet pressure remains constant.
RISE: An increase in outlet pressure as the inlet pressure decreases.
CREEP: A gradual increase in outlet pressure.
VICTOR G-SERIES REGULATOR
INTRODUCTION 2-2 Manual 0056-3764
This Page Intentionally Blank
VICTOR G-SERIES REGULATOR
Manual 0056-3764 3-3 G150, GF150 SPECIFICATIONS
Figure 3-1: G150/GF150 Light Duty Basic Dimensions
SIDE ENTRY
REAR ENTRY
A-12973
1.69 in.
45°
65°
65°
4.77 in.
2.65 in.
3.04 in.
3.45 in.
3.97 in.
2.64 in.
3.04 in.
4.70 in.
2.56 in.
3.73 in.
2.47 in.
1.5”
GAUGES
1.69 in.
65°
95°
SECTION 3: G150, GF150
SPECIFICATIONS
3.01 Light Duty Basic Dimensions
VICTOR G-SERIES REGULATOR
G150, G250 SPECIFICATIONS 3-4 Manual0056-3764
3.02 Exploded View
A-12974
BODY
1
INLET SWIVEL
15
INLET NUT
16
OUTLET
18
H.P. GAUGE
19
L.P. GAUGE
20
FILTER
5
FRICTION DAMPER
6
VALVE SPRING
7
SEAT ASSEMBLY
8
GASKET
9
NOZZLE
10
BONNET
2
DIAPHRAGM
ASSEMBLY
3
SLIP RING
4
ADJUSTING
SPRING
11
SPRING BUTTON
12
ADJUSTING SCREW
13
ADJUSTING KNOB,
SCREW & DECAL
14
RETAINING RING
17
Figure 3-2: G150/GF150 Exploded View
VICTOR G-SERIES REGULATOR
Manual 0056-3764 3-5 G150, GF150 SPECIFICATIONS
3.03 Parts List
Ref. No. Description Part No. Qty
1 Body See Table 3-1A/B/C 1
2 Bonnet 0720-0289 1
3
*
Diaphragm Assembly 0730-0082 1
4
*
Slip Ring 0705-0016 1
5
*
Filter 0717-0038 1
6
*
Friction Damper 0738-0015 1
7 Valve Spring 0762-0060 1
8
*
Seat Assembly See Table 3-1A/B/C 1
9
*
Gasket. Nozzle 1408-0107 1
10 Nozzle 0702-0073 1
11 Adjusting Spring See Table 3-1A/B/C 1
12 Spring Button 0706-0022 1
13 Adjusting Screw 0751-0086 1
14 Adjusting Knob, Screw & Decal See Table 3-1A/B/C 1
15 Inlet Swivel See Table 3-1A/B/C 1
16 Inlet Nut See Table 3-1A/B/C 1
17 Retaining Ring See Table 3-1A/B/C 1
18 Outlet Connection See Table 3-1A/B/C 1
19 Gauge, High Pressure See Table 3-1A/B/C 1
20 Gauge, Low Pressure See Table 3-1A/B/C 1
* Items most commonly required for regulator repair and recommended for stock.
Items 3, 4, 5, 6, 8 and 9 are availabe together in convenient Repair Kits:
0790-0179RP G150 Repair Kit for Oxygen, Inert, CO
2
0790-0180RP G150 Repair Kit for Acetylene, LP Gas
VICTOR G-SERIES REGULATOR
G150, G250 SPECIFICATIONS 3-6 Manual0056-3764
G150, GF150 MODEL-SPECIFIC PART NUMBERS
Ref
#
Description G150-60-540 G150-60-540R G150-60-540R
020 (“A” Hose)
G150-15-200 G150-15-200R G150-15-200R
021 (“A” Hose)
1 Body 0701-0261 0701-0267 0701-0267 0701-0261 0701-0267 0701-0267
8 Seat Assembly 0739-0025 0739-0025 0739-0025 0739-0026 0739-0026 0739-0026
11 Adjusting Spring 0761-0000 0761-0000 0761-0000 0761-0001 0761-0001 0761-0001
14 Adj. Knob, Screw &
Decal
0790-0226RP 0790-0226RP 0790-0226RP 0790-0227RP 0790-0227RP 0790-0227RP
15 Inlet Swivel 0967-0033 0967-0119 0967-0119 0964-0005 (a) 0964-0020 0964-0020
16 Inlet Nut 0967-0044 0967-0044 0967-0044 (a) 0964-0004 0964-0004
17 Retaining Ring 1406-0130 - - - - -
18 Outlet Connection 0950-0068 0950-0027 0950-0029 0960-0029 0960-0018 0960-0023
19 Gauge, High Pressure 1435-0096RP 1435-0096RP 1435-0096RP 1435-0094RP 1435-0094RP 1435-0094RP
20 Gauge, Low Pressure 1435-0091RP 1435-0091RP 1435-0091RP 1435-0090RP 1435-0090RP 1435-0090RP
Table 3-1A: Model - Specific Part Numbers
(a) Inlet is a complete assembly which includes Swivel, Adapter and Nut.
G150, GF150 MODEL-SPECIFIC PART NUMBERS
Ref
#
Description G150-15-300 G150-15-510 G150-15-520 G150-60-510LP G150-60-580 G150-60-320
1 Body 0701-0261 0701-0261 0701-0261 0701-0261 0701-0261 0701-0261
8 Seat Assembly 0739-0026 0739-0026 0739-0026 0739-0026 0739-0025 0739-0025
11 Adjusting Spring 0761-0001 0761-0001 0761-0001 0761-0000 0761-0000 0761-0000
14 Adj, Knob, Screw &
Decal
0790-0227RP 0790-0227RP 0790-0227RP 0790-0228RP 0790-0229RP 0790-0230RP
15 Inlet Swivel 0968-0014 0970-0005 0969-0005 0970-0005 0970-0005 0985-0004 (b)
16 Inlet Nut 0968-0003 0970-003 0969-0003 0970-0003 0973-0003 0985-0030
17 Retaining Ring - - - - - -
18 Outlet Connection 0960-0029 0960-0029 0960-0029 0960-0029 0950-0017 0950-0017
19 Gauge, High Pressure 1435-0094RP 1435-0094RP 1435-0094RP 1435-0095RP 1435-0097RP 1435-0097RP
20 Gauge, Low Pressure 1435-0090RP 1435-0090RP 1435-0090RP 1435-0092RP 1435-0092RP 1435-0092RP
Table 3-1B: Model - Specific Part Numbers
(b) Requires Inlet Washer Part No. 1408-0065.
G150, GF150 MODEL-SPECIFIC PART NUMBERS
Ref # Description GF150-50-580
(Flowgauge)
GF150-50-320
(Flowgauge)
1 Body 0701-0261 0701-0261
8 Seat Assembly 0739-0025 0739-0025
11 Adjusting Spring 0761-0000 0761-0000
14 Adj. Knob, Screw & Decal 0790-0229RP 0790-0230RP
15 Inlet Swivel 0970-0005 0985-0004 (b)
16 Inlet Nut 0973-0003 0985-0030
17 Retaining Ring - -
18 Outlet Connection 0950-0138 (c) 0950-0138 (c)
19 Gauge, High Pressure 1435-0097RP 1435-0097RP
20 Gauge, Low Pressure 1435-0093RP 1435-0093RP
Table 3-1C: Model - Specific Part Numbers
(b) Requires Inlet WASHER Part No. 1408-0065.
(c) This is a special outlet that contains a .032” orifice.
VICTOR G-SERIES REGULATOR
Manual 0056-3764 3-7 G150, GF150 SPECIFICATIONS
3.04 Repair Parts List
Part No. Description Components
0790-0226RP Green Adjusting Knob w/ Screw &
Decal
0750-0026
1400-0205
0707-1437
Knob Green G150
Screw
Decal (Victor)
0790-0227RP Red Adjusting Knob w/ Screw & Decal 0750-0227
1400-0205
0707-1437
Knob Red G150
Screw
Decal (Victor)
0790-0228RP Orange Adjusting Knob w/ Screw &
Decal
0750-0228
1400-0205
0707-1437
Knob Orange G150
Screw
Decal (Victor)
0790-0229RP Black Adjusting Knob w/ Screw & Decal 0750-0229
1400-0205
0707-1437
Knob Black G150
Screw
Decal (Victor)
0790-0230RP Gray Adjusting Knob w/ Screw & Decal 0750-0230
1400-0205
0707-1437
Knob Gray G150
Screw
Decal (Victor)
0790-0179RP G150 Repair Kit for Oxygen, Inert, CO
2
0717-0038
0738-0015
1408-0107
0739-0025
0705-0016
0730-0082
Filter
Friction
Gasket
Seat Assembly
Slip Ring
Diaphragm Assembly
0790-0180RP G150 Repair Kit for Acetylene, LP Gas 0717-0038
0738-0015
1408-0107
0739-0026
0705-0016
0730-0082
Filter
Friction Damper
Gasket
Seat Assembly
Slip Ring
Diaphragm Assembly
1435-0090RP Gauge 1.5” 2.0bar/15psi ACET 1435-0090 Gauge 1.5” 2.0bar/15psi ACET
1435-0091RP Gauge 1.5” x 6bar/87psi OXY 1435-0091 Gauge 1.5” x 6bar/87psi OXY
1435-0092RP Gauge 1.5” x 6bar/87psi GENERIC 1435-0092 Gauge 1.5” x 6bar/87psi GENERIC
1435-0093RP Gauge 1.5” 25L/m(50CFH) Ar/CO
2
1435-0093 Gauge 1.5” 25L/m(50CFH) Ar/CO
2
1435-0094RP Gauge 1.5” 40bar/580psi ACET 1435-0094 Gauge 1.5” 40bar/580psi ACET
1435-0095RP Gauge 1.5” 40bar/580psi GENERIC 1435-0095 Gauge 1.5” x 40bar/580psi GENERIC
1435-0096RP Gauge 1.5” 315bar/4568psi OXY 1435-0096 Gauge 1.5” 315bar/4568psi OXY
1435-0097RP Gauge 1.5” 315bar/4568psi GEN 1435-0097 Gauge 1.5” 315bar/4568psi GEN
Table 3-2: G150/GF150 Service & Repair (See exploded view for reference numbers)
VICTOR G-SERIES REGULATOR
G150, G250 SPECIFICATIONS 3-8 Manual0056-3764
This Page Intentionally Blank
VICTOR G-SERIES REGULATOR
Manual 0056-3764 4-1 G150, GF150 SERVICE & REPAIR PROCEDURES
SECTION 4: G150, GF150
SERVICE & REPAIR PROCEDURES
4.01 Recommended Tools and Supplies for Repair Procedures
• Inlet Swivel Assembly Plug
• Sockets:
9
/
16
”,
11
/
16
”, and
13
/
16
”
• Socket Wrench
• Torque Wrench
• Open End Wrenches:
7
/
16
”,
9
/
16
”,
5
/
8
” and 1-
1
/
8
”
• Bench Vise
• Repair Tool RT-180 (8” Leverage bar with
1
/
4
-18 NPT [M] End)
• Oxygen-compatible Teflon® tape
• Loctite® #222 Threadlocker
• CHRISTO-LUBE® #129 Lubricant
• Phillips Screwdriver
4.02 Cleaning Procedures
It is recommended to clean all metal parts for oxygen service, regardless of Regulator Model being repaired. There are several ways to
clean components for oxygen service. The following standards are recommended reading for more detailed information on methods and
processes:1
• CGA G-4.1 “Cleaning Equipment for Oxygen Service”
• ASTM G-93 “Standard Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched
Environments”
• ASTM G-127 “Standard Guide for the Selection of Cleaning Agents for Oxygen Systems”
For metal parts, Victor, an ESAB brand, suggests using CCI Envirospray Liquid, used per the manufacturer’s instructions, followed by a
hot water rinse and thorough drying. Additional information can be found at http:://www.ccichemical.com.
DO NOT allow non-metal parts to come in contact with cleaning solvents. Cleaning solvents can cause non-metal parts to swell and/or
crack. To clean these parts, use a non-petroleum based mild soap solution, followed by a thorough rinsing in water. Dry parts completely
prior to reassembling.
4.03 Disassembly Procedures
Refer to
Section 3-Figure 3-2
for the reference numbers [shown in brackets].
1. Mount the Inlet Swivel Assembly Plug in the Bench Vise and firmly attach the Regulator.
2. Remove the Knob Decal, then remove the #10-32 Screw located inside the knob [14]. Remove the Knob from the Adjusting
Screw [13], the remove the Adjusting Screw from the Bonnet.
3. Unscrew the Bonnet [2] from the Body [1].
4. Remove the Adjusting Spring [11], Spring Button [12], Diaphragm Assembly [3] and Slip Ring [4].
5. Unscrew the Knozzle [11] from the Body.
6. Remove the Seat Assembly [8], Valve Spring [7], Friction Damper [6], Filter [5] and Gasket [9] from the Body.
7. Unscrew the Outlet Connection [18] from the Body.
8. Unscrew the High and Low Pressure Gauges [19, 23] from the Body.
9. Screw the Leverage Bar Tool RT-180 into the outlet port of the Body (lightly hand tight), and use the bar to unscrew the Body off
the Inlet Swivel [15].
VICTOR G-SERIES REGULATOR
G150, GF150 SERVICE & REPAIR PROCEDURES 4-2 Manual 0056-3764
NOTE!
Watch the Inlet Swivel while trying to turn the Body. If the Swivel is turning with the Body, then you need
to tighten the Inlet Nut tighter on the Inlet Swivel Assembly Plug.
!
CAUTION
Discard the used Gasket, Filter, Diaphragm Assembly, Seat Assembly and Friction Damper. Replace them
with new parts each time you assemble a regulator.
All of the recommended components in
Table 4-1
are available together in convenient repair kits for your G150 or GF150 model
Regulator:
Part No. Description
0790-0179RP G150 Repair Kit for Oxygen, Inert Gases, CO
2
0790-0180RP G150 Repair Kit for Acetylene, LP Gas
Table 4-1
4.04 Assembly Procedures
Refer to
Section 3-Figure 3-2
for the reference numbers [shown in brackets].
NOTE!
When using Teflon
®
tape where noted: Apply two to three layers around the threads, leaving the first
thread clean. Ensure your Teflon
®
tape is oxygen-compatible.
When using Loctite
®
#222 Threadlocker where noted: Apply two to three drops to the second and third
thread, leaving the first thread clean.
1. Apply either Teflon
®
tape or Loctite
®
#222 to the Inlet Swivel threads.
2. If not already in place, mount the Inlet Swivel Assembly Plug back in the Bench Vise. Firmly attach the Inlet Swivel and Inlet
Nut [16] onto the Inlet Swivel Assembly Plug.
3. Screw the body onto the Inlet Swivel. Screw the Leverage Bar Tool RT-180 into the outlet port of the Body (light hand tight),
and then use the Leverage Bar to tighten the body onto the Inlet Connection. Tighten to approximately 15 ft-lbs torque. At
this point, you should not be able to turn the body by hand without the assistance of the Leverage Bar.
4. Wrap the High and Low Pressure Gauges [19, 20] with Teflon
®
tape and screw the Gauges into the Body with a minimum of 6
ft-lbs torque.
5. Apply only Loctite
®
#222 threadlocker to the Outlet Connection [18] threads. Screw the Outlet Connection into the body and
torque to 15ft-lbs.
6. At the point, thoroughly blow out the Body assembly with pressurized oil-free air or dry nitrogen to ensure it is completely
free of chips and debris
7. Assemble the Seat Assembly and Friction Damper “ears” should fold upward, around the Seat Assembly and between the
ribs, to be pushed up into the nozzle as shown:
Friction Damper
Seat Assembly
Nozzle
Ears folded up
Ribs
A-12975
VICTOR G-SERIES REGULATOR
Manual 0056-3764 4-3 G150, GF150 SERVICE & REPAIR PROCEDURES
8. Install the Filter [5], Valve Spring [7] and Gasket [9] into the Body, then carefully install the Nozzle/Seat Assembly/Friction
Damper and tighten to a torque of 8 to 10 ft-lbs.
9. Install the Diaphragm Assembly [3], Slip Ring [4], Adjusting Spring [11], and Spring Button [12] onto the Regulator Body.
10. Thread the Bonnet [2] onto the Body and torque to 14-17 ft-lbs.
11. Apply a small amount of CHRISTO-LUBE
®
#129 to the nose and threads of Adjusting Screw, then thread the Adjusting Screw
into the Bonnet until the nose makes contact with the Spring Button and begins to compress the Spring - then back out one
turn.
12. Reinstall the Knob, #10-32 Screw and new Knob Decal (included with [14]).
VICTOR G-SERIES REGULATOR
G150, GF150 SERVICE & REPAIR PROCEDURES 4-4 Manual 0056-3764
This Page Intentionally Blank
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
/
