505 Oakwood Rd. Lake Zurich, IL 60047ph: 847-550-0033 fx: 847-550-0444

email: sales@cmindustries.comwww.cmindustries.comv17.1.0

Technical Manual for

TRG 350, 450, 550Air-Cooled MIG Guns

- Saftey Information

- Installation

- Maintenance

- Technical Data

- Parts List

- Ordering Information

MADE IN USA

DO NOT INSTALL, OPERATE, OR REPAIR THIS EQUIPMENTWITHOUT READING THIS TECHNICAL MANUAL

Technical Manual

All reference to genuine manufacture’s equipment numbers, and/or trade names or trademarks are for identification and convenience only. The trademarks and trade names are the property of their respective owners. ® Indicates a registered trade name or product name, that is the property of the above-named companies.

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1. Installation ........................................................................

2. Consumables ....................................................................

3. Liner Replacement ............................................................

4. Switch Replacement ..........................................................

5. Neck Replacement ............................................................

6. Unicable Replacement ......................................................

7. Technical Data ..................................................................

8. Exploded View & Parts List ................................................

9. Ordering Instructions ..........................................................

General Safety ......................................................................

Table of Contents

2

IMPORTANT- Neck insulators must be on the neck before welding to maintain insulation of neck jacketing.- All parts must be tightened well before operating.

REMOVAL AND REPLACEMENT- Pull the slip-on nozzle off in a twisting motion.- Use any set of pliers to loosen the tip from the gas diffuser. Use a 5/8” (16mm) wrench to hold diffuser if loose.- Use a 5/8” (16mm) wrench to loosen the gas diffuser. Unthread the rest of the way by hand.- Replace all parts (including neck insulator) that show heavy signs of wear. - Reverse operation to reinstall consumables.

HEAVY DUTY TAPERED NOZZLESLIGHT DUTY TAPERED NOZZLESHEAVY DUTY TAPEREDTAPER-LOCKTM

CONTACT TIP

TAPEREDTAPER-LOCKTM

GAS DIFFUSER

NECK INSULATOR

HEAVY DUTY NOZZLESVARIOUS SIZES AVAILABLE

LIGHT DUTY NOZZLESVARIOUS SIZES AVAILABLE

HEAVY DUTY NOZZLESVARIOUS SIZES AVAILABLE

LIGHT DUTY NOZZLESVARIOUS SIZES AVAILABLE

HEAVY DUTYTAPER-LOCKTM

CONTACT TIP

HEAVY DUTYTAPER-LOCKTM

GAS DIFFUSER

NECK INSULATOR

2. CONSUMABLES

NOTE: All CM Industries TRG guns come with Direct Power Pins.- Make sure you have the correct power pin for your wire feeder.- The liner should already be installed in the gun, if it is not, install the liner. (see section “Liner Replacement”)- Install gun to feeder. - Most Pins (Bernard, Euro, and OXO are not direct connect pins) - Insert power pin to shoulder and secure. - Insert electrical control plug into feeder. - Feed the welding wire into the power pin by hand through the drive rolls. - Tighten the drive rolls. NOTE: On Lincoln® “LN” feeders, you must connect the gas hose to the feeder.

REPLACEMENT- If you need to replace the power pin, start with removing the liner.- Hold the power pin block with a 1“ (24mm) wrench and a 5/8” (16mm) or adjustable wrench on the power pin.- Unthread the power pin from the power pin block.

1. INSTALLATION

INSTALLING THE GUN INTO THE WIRE FEEDER

3

REPLACEMENT- Firmly push the sitch lead connectors onto the new switch.- Push the new switch into the switch housing.- Fit the switch housing back onto the handle and line up the holes on the housing with the holes on the handle.- Start both screws first before tightening with a 5/16” (8mm) socket wrench or flathead screwdriver.

REMOVAL- Loosen the 2 screws of the switch housing with a 5/16” (8mm) socket or a flathead screwdriver.- Carefully remove the switch from the housing.- Use a pair of pliers to remove the lead connectors from the switch.

SWITCH HOUSING

MOUNTING SCREWS

SWITCH

SWITCH LEAD CONNECTORS

LEADS

4. SWITCH REPLACEMENT

- With the liner sticking out of the neck, trim off the excess so that only about 3/4” (19mm) is left.- Reinstall the nozzle, tip, and diffuser onto the neck.

STEP 3

- Feed the liner carefully through the gun to avoid kinking. Rotate the liner if necessary.- Use a 10mm wrench to thread in the liner into the power pin and tighten in a clockwise direction.

STEP 2

- Make sure the power supply is off and the gun is removed from the feeder.- Remove the nozzle, contact tip, and gas diffuser.- If the power pin uses a set screw, use a hex wrench to loosen it.- Use a 10mm wrench to loosen and unscrew the liner from the back of the power pin until free.- Straighten the gun, grab the liner collet with pliers, and pull completely out of the gun.

LINER

STEP 1

NOTE: The procedure for replacing the liner is the same regardless of what direct plug is installed.

3. LINER REPLACEMENT

4

SWITCH HOUSING

SWITCH

HANDLE

MOUNTINGSCREWSNECK

- Install the switch into the switch housing.- Slide the handle over the neck body and line up the mounting screw holes.- Reinstall the mounting screws.

STEP 3

CONNECTOR CONE

NECK

1/8” (3.2mm)

- Thread the new neck into the connector cone and hand tighten.- Place the neck back into the vise and tighten with a 7/8” wrench leaving about 1/8” (3.2mm) between the neck body and the connector cone.

STEP 2

SWITCH HOUSING

SWITCH

HANDLECONNECTOR CONE

CONE NUT

MOUNTINGSCREWS

NECK- Place the neck in the vise.- Remove the screws of the switch housing.- Slide the handle back to expose cable connection.- Use a 7/8” wrench to loosen the neck from the cable connection.- Remove the neck from the vise and unthread the neck from the connector cone by hand.

STEP 1

5. NECK REPLACEMENT

5

- Reinstall the power pin block to the rear of the cable and thread in the power pin- Slide the handle over the connection making sure to be to take care of the switch leads and lining up the mounting holes.- Reinstall the liner and make sure there is 3/4” of the liner sticking out of the neck.- Reinstall the consumables.

STEP 4

SWITCH HOUSING

SWITCH

HANDLECONNECTOR CONE

CONE NUT

MOUNTINGSCREWS

NECK- Begin installing the new unicable starting with the neck.- Slide the handle over the connection making sure to be to take care of the switch leads and lining up the mounting holes.- Fasten the handle to the neck and tighten the screws.

STEP 3

POWER PINPOWER PIN BLOCKSTRAIN RELIEF SPRING STRAIN RELIEF SCREW

- Remove the power pin from the power pin block with a 5/8” wrench on the pin and a 1” wrench or an adjustable wrench on the power pin block.- Unscrew the spring off the strain relief and remove the screws holding the strain relief to the block.- Remove the power pin block from the unicable using a 7/8” wrench and a 1” wrench.

STEP 2

SWITCH HOUSING

SWITCH

HANDLECONNECTOR CONE

CONE NUT

MOUNTINGSCREWS

NECK- Remove the liner from the gun.- Mount the neck in a vise.- Remove the switch mounting screws.- Slide the handle back to expose the cable connection.- Loosen the connector cone from the neck with a 7/8” wrench.- Remove the neck from the vise and unthread the neck by hand.- Remove the switch leads and slide the handle back.

STEP 1

6. UNICABLE REPLACEMENT

6

NOTE: Ratings are based on tests that comply with NEMA ARC Welding Section Standard 11-6-1975 for Duty Cycle.“The time period of one complete cycle is 10 minutes” (60% = 6 minutes).National Electrical Manufacturers Association, 2101 L Street N.W. Washington D.C. 20037.

MIXED GAS350450550

C02450575700

60% DUTY CYCLEMIXED GAS

250325400

C02350450550

100% DUTY CYCLECMITRG STYLE GUN

350 AMP450 AMP550 AMP

Gun Amperage Ratings

MM10390121---98135

INCHES2.003.003.00---

4.004.00

DMM10390121---98135

INCHES4.003.554.78---

3.875.30

CMM105132127187184153

INCHES4.105.194.987.357.236.04

BA

60°45°60°

180°45°60°

NECK

R305-60R405-45R405-60

R405-180R505-45R505-60

Neck Dimensions

7. TECHNICAL DATA

7

32

31

30 29

2827

26

25

24

23

11

10

22

21

20

19

18

1716

15 14

1312

11

10

9

8

76

5

4

3

2

1

1. R401-4-38 R401-4-38 R401-4-38 Nozzle, 3/8", Flush Tip R401-4-50 R401-4-50 R401-4-50 Nozzle, 1/2", 1/8" Tip Recess R401-4-62 R401-4-62 R401-4-62 Nozzle, 5/8", 1/8" Tip Recess R401-4-75 R401-4-75 R401-4-75 Nozzle, 3/4", 1/8" Tip Recess R401-8-62 R401-8-62 R401-8-62 Nozzle, 5/8", 1/8" Tip Stikout, Short Arc R401-5-50 R401-5-50 R401-5-50 Nozzle, H.D., 1/2", 1/4" Tip Recess R401-5-62 R401-5-62 R401-5-62 Nozzle, H.D., 5/8", 1/4" Tip Recess R401-5-75 R401-5-75 R401-5-75 Nozzle, H.D., 3/4", 1/4" Tip Recess R401-6-50 R401-6-50 R401-6-50 Nozzle, H.D., 1/2", 1/8" Tip Recess R401-6-62 R401-6-62 R401-6-62 Nozzle, H.D., 5/8", 1/8" Tip Recess R401-6-75 R401-6-75 R401-6-75 Nozzle, H.D., 3/4", 1/8" Tip Recess R401-7-62 R401-7-62 R401-7-62 Nozzle, H.D., 5/8", 1/4" Tip Recess, Brass R401-7-75 R401-7-75 R401-7-75 Nozzle, H.D., 3/4", 1/4" Tip Recess, Brass R401-7-87 R401-7-87 R401-7-87 Nozzle, H.D., 7/8", 1/4" Tip Recess, Brass2. 155-1-030 155-1-030 155-1-030 H.D. Contact Tip, .030” (0.8mm) 155-1-035 155-1-035 155-1-035 H.D. Contact Tip, .035” (0.9mm) 155-1-040 155-1-040 155-1-040 H.D. Contact Tip, .040” (1.0mm) 155-1-045 155-1-045 155-1-045 H.D. Contact Tip, .045” (1.2mm) 155-1-364 155-1-364 155-1-364 H.D. Contact Tip, 3/64” (1.2mm) 155-1-052 155-1-052 155-1-052 H.D. Contact Tip, .052” (1.4mm) 155-1-062 155-1-062 155-1-062 H.D. Contact Tip, .062” (1.6mm) 155-1-564 155-1-564 H.D. Contact Tip, 5/64” (2.0mm) 155-1-332 H.D. Contact Tip, 3/32” (2.4mm)3. 155-2-030 155-2-030 155-2-030 H.D. Tapered Contact Tip, .030” (0.8mm) 155-2-035 155-2-035 155-2-035 H.D. Tapered Contact Tip, .035” (0.9mm) 155-2-040 155-2-040 155-2-040 H.D. Tapered Contact Tip, .040” (1.0mm) 155-2-045 155-2-045 155-2-045 H.D. Tapered Contact Tip, .045” (1.2mm) 155-2-364 155-2-364 155-2-364 H.D. Tapered Contact Tip, 3/64” (1.2mm) 155-2-052 155-2-364 155-2-364 H.D. Tapered Contact Tip, .052” (1.4mm) 155-2-062 155-2-062 155-2-062 H.D. Tapered Contact Tip, .062” (1.6mm)4. 154-R505 154-R505 154-R505 Diffuser H.D., for CM Taper-LOCK Tip5. 154-R506 154-R506 154-R506 Diffuser, for CM Taper-LOCK Tip6. 154-1 154-1 154-1 Replacement Retaining Ring7. 154-2 154-2 154-2 Replacement O-Ring8. R402-11 R402-11 R402-11 Neck Insulator9. R305-45 R405-45 R505-45 Neck w/ Body, 45° R305-60 R405-60 R505-60 Neck w/ Body, 60°, Std. R305-180 R405-180 R505-180 Neck w/ Body, 180°10. R408 R408 R408 Connector Cone11. R409 R409 R509 Cone Nut12. R413-5 R413-5 R413-5 Inner Tube Clamp13. R412-1 R412-1 R412-1 Switch Lead Connector14. R413-1 R413-1 R413-1 Outer Jacket Clamp15. R411-3 R411-3 R411-3 Mounting Screw16. R411-2 R411-2 R411-2 Switch Housing17. R411-1 R411-1 R411-1 Switch18. R410 R410 R410 Handle, Front19. R413-2 R413-2 R513-2 Spring Guard, Front20. R313-10 R413-10 R513-10 Unicable Assembly, 10' R313-12 R413-12 R513-12 Unicable Assembly, 12' R313-15 R413-15 R513-15 Unicable Assembly, 15' R313-20 R413-20 R513-20 Unicable Assembly, 20' R313-25 R413-25 R513-25 Unicable Assembly, 25'21. B2520041-S B2520041-S B2520041-S Strain Relief Spring22. B2520066 B2520066 B2520066 Strain Relief Kit23. R414-400 CM R414-400 CM R414-400 CM Power Pin Block24. R214 R214 R214 Power Pin, Tweco�#4 R214-1 R214-1 R214-1 Power Pin, Miller� R214-116 R214-116 R214-116 Power Pin Guide Cap, Miller 1/16” R214-332 R214-332 R214-332 Power Pin Guide Cap, Miller 3/32” R214-9 R214-9 R214-9 Guide Cap, Miller R214-2 R214-2 R214-2 Lincoln “LN” R214-12 R214-12 R214-12 Tweco�#5 R214-13 R214-13 R214-13 Panasonic� R214-25 R214-25 R214-25 Lincoln “Power MIG” & “LF”�25. 401-00-001 401-00-001 401-00-001 Adaptor Nut26. 285-03-002 285-03-002 285-03-002 Male Pin w/ Lead27. R425-10CM R425-10CM R425-10CM Power Pin, Euro28. 285-00-002 285-00-002 285-00-002 O-Ring, Euro29. 300-05-001 300-05-001 300-05-001 Electrical Plug, Miller/Lincoln “PM”30. 300-05-002 300-05-002 300-05-002 Electrical Plug, Lincoln “LN” & “LF”31. R415-23-15 R415-23-15 R415-23-15 Liner Assembly, .023", 15' R415-30-15 R415-30-15 R415-30-15 Liner Assembly, .030", 15' R415-35-15 R415-35-15 R415-35-15 Liner Assembly .035"-.045", 15' R415-35-25 R415-35-25 R415-35-25 Liner Assembly .035"-.045", 25' R415-116-15 R415-116-15 R415-116-15 Liner Assembly .045"-1/16", 15' R415-116-25 R415-116-25 R415-116-25 Liner Assembly .045"-1/16", 25' R415-564-15 R415-564-15 R415-564-15 Liner Assembly, 1/16-5/64", 15' R415-564-25 R415-564-25 R415-564-25 Liner Assembly, 1/16-5/64", 25' R415-332-15 R415-332-15 R415-332-15 Liner Assembly, 5/64-3/32", 15' R415-332-25 R415-332-25 R415-332-25 Liner Assembly, 5/64-3/32", 25' R415-35-2 R415-35-2 R415-35-2 Liner Assembly .035"-3/64", 15' Aluminum R415-116-2 R415-116-2 R415-116-2 Liner Assembly 3/64"-1/16", 15' Aluminum R415-35-0 R415-35-0 R415-35-0 Teflon Liner Assy., .035"-3/64", 15' Aluminum R415-116-0 R415-116-0 R415-116-0 Teflon Liner Assy., 3/64"-1/16", 15' Aluminum32. R415-1 R415-1 R415-1 Liner O-Ring

350 AMP 450 AMP 550 AMP

MILLER

TWECO #4

LINCOLNLN

LINCOLNPOWER MIG & LF

ITEM PART # DESCRIPTION

8. EXPLODED VIEW & PARTS LIST

8

CMI TRG STYLEGUN MODEL

350 AMP450 AMP550 AMP

NECK

R305-60R405-60R505-60

NOZZLE

R401-4-62R401-6-62R401-6-62

DIFFUSER

154-R505154-R505154-R505

CONTACT TIP

155-1-035155-1-045155-1-116

STANDARD PARTS USED

Length

10 10’12 12’15 15’20 20’25 25’Custom Lengths Available

Wire Sizes

30 .030” (0.8mm)35 .035” (0.9mm)40 .040” (1.0mm)45 .045” (1.2mm)364 3/64” (1.3mm)52 .052” (1.4mm)116 1/16” (1.6mm)564 5/64” (2.0mm)332 3/32” (2.4mm)

Gun Amperage

30 350 AMP40 450 AMP50 550 AMP

Power Pins

_ Tweco® #4B Bernard® E-ZE EuroLN Lincoln® "LN"LF Lincoln® “LF”/Powerfeed 10LPM Lincoln® Power MIGTM

M Miller®

P Panasonic®

TW Tweco® #5

Tregaskiss® Style MIG Gun

R M 40 15 - 116

CUSTOM PART # ORDERING

Model of TRG Gun 450 Amp(standard Tweco #4 power pin)

Length of Gun 15’

Wire Size 0.045”

R4015-45

EXAMPLE OF A STANDARD PART#

9. ORDERING INFORMATION

505 Oakwood Rd. Lake Zurich, IL 60047ph: 847-550-0033 fx: 847-550-0444email: sales@cmindustries.com

Arnulfo S. Garza No. 150, Colonia: Santa MariaMonterrey, Nuevo Leon CP 64000, Mexico

Tel: 52-81-10970923 | E: salesMX@cmindustries.com

Read America Nation Standard Z49.1, “Safety in Welding, Cutting, and Allied Processes,” available from America Welding Society,550 N.W. LeJeune Rd., Miami, FL 33126;

OSHA Safety and health standards, available from U.S. Government Printing Office, Washington DC 20402

WARNING!Please Read All Safety Instructions

Warning• Read and follow the manufacturer’s instructions, employer’s safety practices, and Material Safety Data Sheets (MSDSs).• Only qualified personnel should install, use, or service this material and/or equipment.

ARC RAYS can injure eyes and burn skin.• Always wear correct eye, ear, and body protection.• Always wear a welding helmet with the proper grade filter lens. Protect yourself and others from spatter arc rays by using protective screens, barriers and welding curtains.• Always wear protective gloves and clothing to cover exposed skin. This will aid in the prevention of arc and spatter burns.

WELDING SPARKS can cause fire or explosion• Do not weld near flammable material.• Do not weld on closed containers.• Remove combustibles from the work area and/or provide a fire watch.• Avoid oily or greasy clothing as a spark may ignite them.

FUMES AND GASES can be hazardous to your health.• Keep your head out of the fumes.• Use enough ventilation or exhaust at the arc to keep fumes and gases from your breathing zone, and general area.• Fumes from cutting and welding can deplete air quality, causing injury or death. Always wear an air supplied respirator in confined areas, or if breathing air is not safe.

LOUD NOISE can damage hearing.• Always wear protective hearing devices to ensure protection when noise levels exceed OSHA standards.

ELECTRIC SHOCK can kill.• Always wear dry installing gloves.• Do not touch live electrical parts.• Always disconnect power source before hooking up or changing electrodes, nozzles and other parts.