ESAB OCIM RB25T, OCIM RB28T, OCIM RB36T, OCIM RB40T, OCIM RH302T, OCIM RH502T, OCIM RM552T Instruction manual

OCIMRB25T OCIMRB28T OCIMRB36T  OCIMRB40T OCIMRH302T  OCIMRH502T OCIMRM552T
Instruction manual
0463 607 001 GB 20180427

TABLE OF CONTENTS

1
SAFETY ....................................................................................................... 4
1.1 Meaning of symbols ............................................................................... 4
1.2 Safety precautions ................................................................................. 4
2
INTRODUCTION.......................................................................................... 7
3
SHIPMENT AND PACKAGING ................................................................... 8
4
TECHNICAL DATA ...................................................................................... 9
5
OPERATION ................................................................................................ 11
5.1 Fitting the liner........................................................................................ 11
5.2 Equipping the torch................................................................................ 11
5.3 Fitting the central adaptor to the equipment ....................................... 11
5.4 Connecting the cooling circuit.............................................................. 11
5.5 Setting the level of shielding gas.......................................................... 12
5.6 Checklist ................................................................................................. 12
5.7 Changing wire......................................................................................... 12
5.8 Starting and stopping the welding process......................................... 12
6
MAINTENANCE........................................................................................... 13
6.1 Overview ................................................................................................. 13
6.2 Cable assembly ...................................................................................... 13
6.3 Cleaning the wire feed ........................................................................... 13
6.4 Steel liner / Plastic liner ......................................................................... 13
6.5 Cleaning the swan neck......................................................................... 15
6.6 Checking the cooling system................................................................ 15
7
TROUBLESHOOTING ................................................................................. 16
8
ORDERING SPARE PARTS ........................................................................ 17
ORDERING NUMBERS ....................................................................................... 18
Rights reserved to alter specifications without notice.

1 SAFETY

1 SAFETY

1.1 Meaning of symbols

As used throughout this manual: Means Attention! Be Alert!
DANGER! Means immediate hazards which, if not avoided, will result in immediate,
serious personal injury or loss of life.
WARNING! Means potential hazards which could result in personal injury or loss of
life.
CAUTION! Means hazards which could result in minor personal injury.
WARNING!
Before use, read and understand the instruction manual and follow all labels, employer´s safety practices and Safety Data Sheets (SDSs).

1.2 Safety precautions

Users of ESAB 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 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 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 the equipment must be familiar with: ○ its operation ○ location of emergency stops ○ its function ○ relevant safety precautions ○ welding and cutting or other applicable operation of the equipment
2. The operator must ensure that: ○ no unauthorised person is stationed within the working area of the equipment
when it is started up
○ no-one is unprotected when the arc is struck or work is started with the
equipment
3. The workplace must: ○ be suitable for the purpose ○ be free from drafts
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1 SAFETY
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
WARNING!
Arc welding and cutting can be injurious to yourself and others. Take precautions when welding and cutting.
ELECTRIC SHOCK - Can kill
Install and ground the unit in accordance with instruction manual.
Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.
Insulate yourself from work and ground.
Ensure your working position is safe
ELECTRIC AND MAGNETIC FIELDS - Can be dangerous to health
Welders having pacemakers should consult their physician before welding. EMF may interfere with some pacemakers.
Exposure to EMF may have other health effects which are unknown.
Welders should use the following procedures to minimize exposure to EMF:
○ Route the electrode and work cables together on the same side of
your body. Secure them with tape when possible. Do not place your body between the torch and work cables. Never coil the torch or work cable around your body. Keep welding power source and cables as far away from your body as possible.
○ Connect the work cable to the workpiece as close as possible to the
area being welded.
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 screen and filter lens and wear protective clothing.
Protect bystanders with suitable screens or curtains.
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NOISE - Excessive noise can damage hearing
Protect your ears. Use earmuffs or other hearing protection.
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1 SAFETY
MOVING PARTS - Can cause injuries
Keep all doors, panels and covers closed and securely in place. Have only qualified people remove covers for maintenance and troubleshooting as necessary. Reinstall panels or covers and close doors when service is finished and before starting engine.
Stop engine before installing or connecting unit.
Keep hands, hair, loose clothing and tools away from moving parts.
FIRE HAZARD
Sparks (spatter) can cause fire. Make sure that there are no inflammable materials nearby.
Do not use on closed containers.
MALFUNCTION - Call for expert assistance in the event of malfunction.
PROTECT YOURSELF AND OTHERS!
CAUTION!
This product is solely intended for arc welding.
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 locations, due to conducted as well as radiated disturbances.
NOTE! Dispose of electronic equipment at the recycling
facility!
In observance of European Directive 2012/19/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.
ESAB has an assortment of welding accessories and personal protection equipment for purchase. For ordering information contact your local ESAB dealer or visit us on our website.
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2 INTRODUCTION

2 INTRODUCTION
The MIG / MAG welding torches of this series are exclusively intended for shielded- arc welding using inert gas (MIG) or active gas (MAG) for industrial and commercial use by suitably trained employees. The torches are only available in manual versions.
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3 SHIPMENT AND PACKAGING

3 SHIPMENT AND PACKAGING
The components are carefully checked and packaged, however damage may occur during shipping.
Checking procedure on receipt of goods
Check that the shipment is correct by referring to the shipping note.
In case of damage
Check the package and components for damage (visual inspection).
In case of complaints
If the package and/or components have been damaged during shipment:
Contact with the last carrier immediately.
Keep the packaging (for possible inspection by the carrier or supplier, or for returning the goods).
Storage in an enclosed space
Ambient temperature for shipment and storage: -20°C to +55°C
Relative air humidity: up to 90% at a temperature of 20°C
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4 TECHNICAL DATA

4 TECHNICAL DATA
Welding torch OCIM RB25T OCIM RB28T OCIM RB36T OCIM RB40T
Type of cooling Air Air Air Air
Permitted load at 60% duty cycle*
Carbon dioxide CO
2
220 A 260 A 300 A 360 A
Mixed gas, Ar/CO2M21 200 A 220 A 270 A 340 A
Recommended gas flow 8-12 l/min 8-15 l/min 8-15 l/min 10-20 l/min
Wire diameter 0.8-1.0 mm 0.8-1.2 mm 0.8-1.2 mm 1.0-1.6 mm
Operating
-10 °C to 40 °C -10 °C to 40 °C -10 °C to 40 °C -10 °C to 40 °C
temperature**
* The capacity may be reduced up to 30% when pulse welding.
Welding torch OCIM RH302T OCIM RH502T OCIM RM552T
Type of cooling Water Water Water
Permitted load at 100% duty cycle*
Carbon dioxide CO
2
350 A 500 A 550 A
Mixed gas, Ar/CO2M21 300 A 450 A 500 A
Recommended gas flow 8-15 l/min 10-20 l/min 10-20 l/min
Wire diameter 0.8-1.2 mm 1.0-1.6 mm 1.0-1.6 mm
Operating
-10 °C to 40 °C -10 °C to 40 °C -10 °C to 40 °C
temperature**
* The capacity may be reduced up to 30% when pulse welding.
** When using liquid cooled torches in freezing conditions, use an adequate cooling liquid.
Duty cycle
The duty cycle refers to the time as a percentage of a ten-minute period that you can weld at a certain load without overloading. The duty cycle is valid for 40 °C / 104 °F, or below.
General torch data with reference to IEC/EN 60 974−7
Type of guidance: Manual
Wire type: Standard round wire
Voltage rating: The control circuit and trigger switch are
rated for a voltage of 42 V, max. 1 A
Specifications of the torch cooling circuit (for liquid cooled torches only):
• minimum flow 1.2 l/min
• min. water pressure: 2.5 bar
• max. water pressure: 3.5 bar
• input temperature: max. 40 °C
• return temperature: max. 60 °C
• cooling capacity: min. 1000 W, up to 2000 W depending on the application
Liquid cooled torches
Return temperatures of more than 60 °C can shorten the lifetime of the torch or cause damage or destruction of the torch. The cooler must always be filled with sufficient cooling liquid, refer to the instruction manual for the cooling unit. In case of a high thermal load on the torch, use a cooler with sufficient capacity. Use only special cooling fluid containing
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4 TECHNICAL DATA
corrosion inhibitors for welding torches. For suitable products, contact your nearest ESAB dealer.
The ratings are valid for cable lengths from 3.0 to 5.0 m.
The rated loads refer to a standardized case of use. Under special conditions, e.g. in case of high heat reflection on the torch, the torch could overheat even when operated below the rated load. In this case choose a more powerful model or lower the duty cycle.
Conditions of intended use
1. The welding torch should only be used within the above mentioned technical specifications and for its intended purpose.
2. The type of torch has to be chosen according to the welding application. The required duty-cycle and load, the type of cooling, guiding method and the wire diameter have to be considered. If increased requirements exist, for example caused by pre-heated work pieces, high heat reflection in corners, etc. these must be taken into account by choosing a welding torch with adequate reserve in rated load.
3. The product must be protected from humidity and moisture during transport, storage and operation.
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5 OPERATION

5 OPERATION
General safety regulations for handling the equipment can be found in the "SAFETY" chapter of this manual. Read it through before you start using the equipment!
CAUTION!
This product is intended for industrial use. In a domestic environment this product may cause radio interference. It is the user's responsibility to take adequate precautions.
DANGER!
In the event of an emergency, the power supply must be switched off immediately. For further action in such circumstances, refer to the intruction manual for the power source for more information..
The welding torch can be used in any welding position.
Contact with hot items might cause damage to the torch and the cable assembly.
Do not drag the power source using the torch.
Do not pull the cable assembly over sharp edges. Do not bend the cable assembly sharply.

5.1 Fitting the liner

Fit the correct wire guide liner for the application, as needed to suit the wire type and diameter. See chapter "MAINTENANCE" section "Steel liner / Plastic liner".
NOTE! For information on how to install new liners and about correct assembly
procedure, see the chapter entitled “Maintenance”
Steel liner = for steel wires
Plastic liner = for aluminium, copper, nickel and stainless steel wires

5.2 Equipping the torch

The torch must be equipped according to the wire diameter and wire material. Choose the right liner, contact tip, tip adaptor, gas nozzle and gas diffuser (as applicable). A detailed overview of the suitable parts is found in the spare parts list for the torch.
Tighten the tip adaptor and the contact tip with an adequate tool.
Make sure that all required parts shown in the spare parts list, e.g. insulators, are installed. Welding without these items might cause immediate destruction of the torch.

5.3 Fitting the central adaptor to the equipment

1. Check that the wire guide liner is fitted correctly.
2. Insert the central plug into the socket on the wire feed unit and secure it by tightening the adaptor nut firmly by hand.

5.4 Connecting the cooling circuit

Connect the water hoses to the cooling unit: blue for water flow forward from the cooler to the torch; red for heated water flow backwards from the torch to the cooler. Before using a water cooled torch, the air has to be removed from the cooling circulation by running the cooler for a few minutes.
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5 OPERATION
CAUTION!
Wrongly connected water hoses can cause overheating and damage of the torch neck and water-power cable. Regularly check the coolant level and throughput on the cooling unit. Insufficient cooling might cause overheating and damage of the torch neck and water-power cable.
NOTE!
To achieve an optimal gas- and water flow, place the cable assemblies and the gas and water hoses as straight as possible. Kinked hoses will cause overheating and can damage the torch. Protect cables and supply hoses from damage.

5.5 Setting the level of shielding gas

Set the quantity of gas required on the gas regulator. The type and quantity of gas to be used depend on the welding task to be performed.

5.6 Checklist

Check the cable assembly before connecting it to the wire feed unit to confirm the wire liner is suitable for the wire diameter and type.
Check the front end consumable parts on the swan neck, whether the correct contact tip etc. is being used for the wire diameter and type.

5.7 Changing wire

When changing the wire, ensure that the end of the wire is deburred.
Insert the wire into the wire feeding unit in accordance with the operating instructions.
When inserting the wire, press the wire jog button on the wire feed unit.

5.8 Starting and stopping the welding process

The wire feeder and the welding process will be started by pulling the torch trigger. Depending on the configuration of the welding machine, the welding process will be stopped by either letting go of the trigger or by pulling the trigger a second time. Refer to the intruction manual for the power source for more information.
DANGER!
The torch head might reach very high temperatures during operation, there is a risk of severe burns. Let it cool down under observation, there is risk of fire. Do not place the hot torch on or near heat-sensitive objects. For water cooled torches, the cooling system should remain switched on for some minutes after the welding process has been stopped.
When leaving the workplace the system must be secured against unintended operation, preferably by switching off the power source.
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6 MAINTENANCE

6 MAINTENANCE

6.1 Overview

NOTE!
Regular maintenance is important for safe and reliable operation.
Cleaning and replacement of the welding torch’s wear parts should take place at regular intervals in order to achieve trouble−free wire feed. Blow the wire guide clean regularly and clean the contact tip.
WARNING!
Before carrying out cleaning, servicing and repair work, the following shutdown procedure must be followed.
1. Switch off the power supply.
2. Close off the gas supply.
Make sure that the power supply and gas remain turned off all the time while servicing the equipment.

6.2 Cable assembly

Check the torch and cable assembly for damages prior to use. Damages must be repaired by qualified personnel before further use of the product.

6.3 Cleaning the wire feed

Disconnect the torch cable assembly from the equipment and lay it out straight.
Unscrew the nut and pull out the wire guide liner. Remove other parts from the swan neck.
Blow compressed air through the wire conduit from both ends in order to remove wire shavings.
Insert the liner into the wire conduit and screw the nut back on.
NOTE!
New liners must be cut to the correct length.

6.4 Steel liner / Plastic liner

If a wire feeding problem cannot be solved by exchanging the contact tip and cleaning the wire guide channel, the liner should be replaced.
Liner and welding wire should be inserted while the cable assembly is laid out straight.
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6 MAINTENANCE
Installing a steel liner
Remove the sleeve nut from the central connector, remove the gas nozzle and contact tip from the torch.
Insert the liner through the central connector and lock it with the sleeve nut.
Cut the liner flush with the tip holder.
Remove the liner from the torch and carefully smoothen its front end. If needed, grind down burred edges. Make sure the inner hole is completely open.
For insulated liners, remove the insulation at the front end so that the remaining insulation ends approximately at the front end of the torch handle.
Reinstall the liner and lock it with the sleeve nut. Install all equipment parts on the torch neck.
Installing a plastic liner
Install the gas nozzle and contact tip on the torch.
Make a clean cut at the front end of the liner and chamfer the edges (e.g. with a pencil sharpener).
Insert the liner – with brass liner first, if present – through the central connector into the torch cable, while slightly rotating the liner.
NOTE!
Make sure the liner is completely inserted by rotating it and slightly pushing it forward, until you can feel it has reached its stop.
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6 MAINTENANCE
Install the collet and the O-ring on the liner, move it to the right position and fix it with the sleeve nut of the euro central connector.
Measure the required overlap needed inside the wire feeder cabinet and cut the liner accordingly.

6.5 Cleaning the swan neck

Clean the inside of the gas nozzle regularly to remove welding spatter and spray with
ESAB® anti-spatter agent.
Check the consumables for visible damage and replace if necessary.

6.6 Checking the cooling system

Make sure that the cooling liquid is clean, change it if required. Impurities in the cooling liquid can obstruct the water channels of the torch. Always use suitable cooling fluid for torches with corrosion inhibitors.
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7 TROUBLESHOOTING

7 TROUBLESHOOTING
If the measures described below are not successful, consult your dealer or the manufacturer.
Read the operating instructions for the welding components, e.g. power source and wire feed unit.
Problem Possible cause Action
Torch becomes too hot • Contact tip / tip holder not
tight enough
• Cooling system is not working well
• Torch overstrained
• Cable assembly defective
Wire feeding problems • Contact tip is worn
• Liner is worn / dirty
• Consumables used are not suitable for the wire diameter or material
• Wire feeder not set-up properly
• Cable assembly is bent or laid out in small radii
• Wire is contaminated
Porous welds • Gas swirl caused by
spatter adherence
• Too small or extremely high gas flow in the torch
• Gas supply defective
• Air draft at the work place
• Moisture or contamination on the wire or on the work piece
• Check and tighten hand-tight
• Check water flow, filling level and cleanliness
• Observe technical data, if needed, choose a different type
• Check cables, tubes and connections
• Exchange contact tip
• Check the liner, blow through in both directions. Exchange if needed.
• Check with spare part list
• Check the wire feeding rolls, the contact pressure and the spool brake
• Check the cable assembly and lay it out straight
• Use a cleaning felt
• Clean the torch head, use gas diffuser / spatter protection
• Check flow rate with measurement tool
• Check flow rate and possible leakage
• Install shielding
• Check the wire and the work piece, use less or different anti-spatter liquid
Variable arc • Contact tip is worn
• Wrong welding parameters
Welding process does not start
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• Control cable is broken or the trigger is defective
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• Exchange contact tip
• Correct the welding parameters
• Check and repair the trigger connections, clean the trigger switch or exchange it
© ESAB AB 2018

8 ORDERING SPARE PARTS

8 ORDERING SPARE PARTS
CAUTION!
Repair and electrical work should be performed by an authorised ESAB service technician. Use only ESAB original spare and wear parts.
The OCIM RB25T, OCIM RB28T, OCIM RB36T, OCIM RB40T, OCIM RH302T, OCIM RH502T and OCIM RM552T are designed and tested in accordance with international and european standards IEC/EN 60974-7. On completion of service or repair work, it is the responsibility of the person(s) performing the work to ensure that the product still complies with the requirements of the above standard.
Spare parts and wear parts can be ordered through your nearest ESAB dealer, see
esab.com. When ordering, please state product type, serial number, designation and spare
part number in accordance with the spare parts list. This facilitates dispatch and ensures correct delivery.
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ORDERING NUMBERS

ORDERING NUMBERS
Ordering number Type Description
161050307TW OCIM RB25T Welding torch, 3m, Euro connection
161050407TW OCIM RB25T Welding torch, 4m, Euro connection
161100307TW OCIM RB28T Welding torch, 3m, Euro connection
161100407TW OCIM RB28T Welding torch, 4m, Euro connection
161130307TW OCIM RB36T Welding torch, 3m, Euro connection
161130407TW OCIM RB36T Welding torch, 4m, Euro connection
161120307TW OCIM RB40T Welding torch, 3m, Euro connection
161120407TW OCIM RB40T Welding torch, 4m, Euro connection
160110307TW OCIM RH302T Welding torch, 3m, Euro connection
160110407TW OCIM RH302T Welding torch, 4m, Euro connection
160100307TW OCIM RH502T Welding torch, 3m, Euro connection
160100407TW OCIM RH502T Welding torch, 4m, Euro connection
160100507TW OCIM RH502T Welding torch, 5m, Euro connection
159080307TW OCIM RM552T Welding torch, 3m, Euro connection
159080407TW OCIM RM552T Welding torch, 4m, Euro connection
0463 621 001 Spare parts manual
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ORDERING NUMBERS
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