Reboot RBM2100 MIG Welding Machine User Manual

Reboot RBM2100 MIG Welding Machine

Version

Due to product version upgrades or other reasons, the contents of this document are not regularly updated. Unless otherwise agreed, this document is intended as a guide only and all statements, information, and recommendations in this document do not constitute any guarantee, expressed or implied. The pictures in this document are for reference only. If the picture is different from the real one, then prevail in kind.

Product brief introduction

Technical parameters

470×320×376

Accessories list

Installation instruction

Welding wire Installation steps:

The wire holder filled with wire installed on the wire feeder. The hole position of the wire plate should be aligned with the fixed plug on the shaft.
The wire coil should be rotated and loosen the wire, to prevent the wire from loosening, the new wire disk head is usually inserted into the fixed hole at the edge of the wire. In normal use, to prevent the bending of the wire to be stuck, please cut this part of wire.

According to the diameter of the wire, choose different wire feed roller.V roller for stainless steel and carbon steel. Knurled roller for flux cored wire. Please match diameter notes on the roller with the welding wire diameter. Loosen the pressure wheel nut, to pass through the guide wire tube into the wire feed wheel groove, adjust the pressure wheel pressure welding wire, guarantee the welding wire is not sliding, and not blocking while feeding the wire.
Roller size: external diameter ∮30mm/ internal diameter ∮10mm/ height 10mm

The welding torch is inserted into the output socket of the front panel and screwed tightly. And put the wire into the gun.Unscrew the nozzle contact tip. And feed the wire through the torch. After the wire successfully go through.Please install the contact tip. For fluxed core wire, please fasten Ceramic nozzle, for solid wire please fasten copper nozzle.

MIG Torch and TIG Torch (Not included in standard accessories) explosive chart
MIG Torch nozzel 1 and contact tip 2 are consumables. Please change when needed.

Gas shielded welding Installation.

MIG welding
The gas cylinder containing the carbon dioxide gas, mixture gas or argon gas decompression flow meter is closely connected with the intake inlet of the machine. Connect the machine rear gas fast plug and gas regulator with the gas hose in accessories.
LIFT TIG welding
The gas cylinder containing the argon gas decompression flow meter is closely connected with the gas tube on torch.

Operating instructions

Operation panel interface

1| Voltage display: Display output voltage only when working, otherwise 000 is displayed
---|---
2| Current display: Display output current only when working, otherwise 000 is displayed

3

| MIG welding torch switch (Effective only in MIG mode):The welding machine only be operated with the Spool gun torch in the Spool gun torch mode; The

MIG gun only be used for welding in the MIG gun mode.Please check the switch status when using.

---|---
4| Mode switch:MIG /MMA /LIFT-TIG functions. In MIG Mode, the button [3]is valid.

5

| 2T/4T switch.

2T is manual, that is, always press the switch for welding

4T is semi-automatic, that is, pressing is arc striking, loosening is automatic welding, and then pressing is arc stopping

6

| ADJUST VOLTAGE:Adjustment is only effective in MIG mode, not available in MMA, lift and TIG modes.[2] is no change when adjusting the voltage.You

can get very good welding results when pointing the current[7] voltage[6] knob to the same scale

7

| ADJUST CURRENT: [1] is no change when adjusting the voltage.You can get very good welding results when pointing the current[7] voltage[6] knob to

the same scale

Welding operation instruction

On display
After opening the power supply, the Current display is 000, the Voltage display is 000 in the MIG mode, Voltage display is no-load voltage in lift TIG and MMA modes. The actual output current and voltage are displayed only during the machine’s working.
MMA Manual welding operation procedures
There are two ways to connect the dc welder normally:
Positive connection: Welding pliers connected to the negative pole, workpiece connected to the positive pole. Suitable for the acid electrodes. negative connection: workpiece connected to the negative pole, Welding pliers connected to the positive pole. Suitable for the basic electrode. The welding function is selected according to the welding process requirements of the workpiece, incorrect data adjustment may cause arc instability, spatter, and adhesion to occur, we can change the polarity joint for a different workpiece as above. Make sure the cable is connected to the soldering pliers and the quick plug, Connect the quick plug to the corresponding fast socket And tighten it clockwise. The ground clamp clamps the workpiece. When the welding stops, operation [manual welding and gas protection welding switch key], Manual welding indicator light, into manual welding mode. In Manual welding mode, adjust【Multifunctional data adjusting knob】The welding current can be changed, the in【Multifunctional data display window】display. The welding current range is 40A to maximum current 150A adjustment.

Operating procedures for MIG gas protection welding

Solid Wire
Welding wire Installation. (Refer to 3.1) Please choose a wire feed roller.V roller for stainless steel and carbon steel. Connected with The gas cylinder. (Refer to 3.3) insert the fast plug of the ground wire in the front panel on the fast socket.
Check wire operation: press the torch switch, the wire feeder will feed the wire through the torch tip. Select MIG mode on the front control panel(Make sure you are not in SPOOL GUN state). After that, select the right material and diameter you are welding with. Adjust current according to your workpiece thickness. To find the best welding performance and suitable for your welding habits. You may also adjust voltage and inductance to build a perfect welding bead and penetration.
Gasless welding-flux cored wire
Welding wire Installation. (Refer to 2.1) Please choose the wire feed roller. Knurled roller for flux cored wire. insert the fast plug of the ground wire in the front panel on the fast socket.
Check wire operation: press the torch switch, and the wire feeder will feed the wire through the torch tip. Select MIG mode on the front control panel(Make sure you are not in SPOOL GUN state). After that, select the right material and diameter you are welding with. Adjust the current according to your workpiece thickness. To find the best welding performance and suitable for your welding habits. You may also adjust voltage and inductance to build a perfect welding bead and penetration.
“Spool gun torch” welding
This machine can be connected to a “Spool gun torch”. (package does not include a “spool gun”). The use of the “Spool gun torch” is similar to that of the MIG torch, except that the wire is fed through the wire feeding mechanism of the “spool gun” torch itself. In the“spool gun” mode, the feeding mechanism of the original machine does not work. Select “spool gun” mode on the front control panel or turn on the “Spool gun” switch at MIG mode. (This toggle switch is in the wire feeding warehouse of the machine or near the “Mode” button). Aluminum welding is supported in “spool gun” mode.

Operation of LIFT TIG function
Please follow the installation draft to install the TIG torch and earth clamp. In Lift TIG welding mode, adjust【Current adjusting knob】The welding current can be changed. The welding current range is 30A to a maximum current 150A adjustment. TIG welding functions are for thin workpiece welding or stainless steel welding. Usually, choose Ar gas as protecting gas.

1. Connect the gas hose with gas tube on torch.
2. Connect the TIG torch on the negative plug.
3. Connect the Earth cable on the positive plug.

Fault display: OC light
When the welding load is overloaded and the output current of the machine is too large, the internal temperature of the machine is too high, and the machine fault light will be on. This is normal. The machine can recover after the heat dissipation becomes normal. Please restart the power supply; When damaged, the fault light will be on, in this case, the machine is abnormal and needs maintenance, please contact the supplier.
Polarity conversion joint
This machine has the polarity conversion; There are positive output terminal and negative output terminal between wire feeder and wire spool; When use solid wire with gas protection, torch socket should be connected to the positive output terminal, ground cable should be connected to the negative output terminal; When use flux-cored wire, the ground cable should be connected to positive terminal.
Welding environment and safety
Working surrounding

• Welding should be carried out in dry surroundings. The air humidity level should not be higher than 90%.
• The temperature should be between -10C to 40C.
• Don’t use the welding machines in sunshine or rain. Keep it off the water.
• Don’t use the machines in places of dust or corrosive air.
• MIG welding should not be carried out in places with quick airflow.

Safety norms
The protection circuit of over-voltage, over-current and over-heat circuits are designed in the welding machines. It will stop working automatically when the input voltage, output current or internal temperature exceed the rated value. But if the machines are excessively used, such as with input voltage higher than the rated, the machine might be damage. Please pay close attention to the following matters.
Keep good ventilation!
The welding machines work with high welding current. Nature air flow can’t reach the requirement of heat dissipation. So the fans are installed as cooling system to ensure stable performance.
Make sure the ventilation windows are not covered or blocked. The distance between the machines and things around should not be less than 0.3m. Good ventilation is good for welding performance and operational life.
Never overload!
Check the maximum rated current (according to the Duty Cycle chosen). Make sure the welding current is never higher than the rated value. Over-current running will obviously shorten the operation life, and even damage the machine.
Never over voltage!
The Input Voltage could be found in the Technical data diagram. The auto- compensation function will keep the welding current in the rated range. If the input voltage exceeds the permissible value, the machine would be damaged. Users should take protective measures in advance to avoid it.
Make sure the earth is connected before operation.
On the rear panel of the welding machine, a screw for earth connecting would be found. It must be ground connected with a cable whose section is bigger than 6mm2 before the operation, to avoid accidents caused by static or electricity leaks.
Welding problems and solution
The phenomenon listed below may happen due to relevant accessories used, welding material, surroundings, and power supply. Please improve your surroundings and avoid these problems. Arc starting difficulty. Arc interruption happens easily:

• Examine whether the grounding wire clamp contacts the work pieces well.
• Examine whether each joint has improper contact.

The output current fails to reach the rated value:
The deviation of power voltage from the rated value may cause the output current does no accord with the adjusted value. When the power voltage is lower than the rated value, the maximum output current may be lower than the rated value.
The current can not keep stable during operation:
This situation may relate to the following factors:

• The voltage of the electric power network changes;
• Serious interference from electric power networks or other electric facilities.

Gas vent in welds:

• Examine whether the gas supply circuit has leakage.
• Examine whether there is sundries such as oil, dirt, rust, paint etc. on the surface.

Troubleshooting and error checking

Notes: The following operations must be performed by qualified electricians with valid certifications. Before maintenance, you are suggested to contact local distributor to verify qualification.

The meter show nothing; Fan does not rotate; No welding output

| Ø  Confirm the power switch is on.

Ø  Power supply available for input cable.

Ø  Check if the three phase commute bridge is damaged.

Ø  There is malfunction occurs in the supplementary power source on control board (contact dealers).

The meter shows; Fan works normally; No welding output

| Ø  Check if all the sockets in the machine are connected well.

Ø  There is open circuit or badness of connect at the joint of output terminal.

Ø  The control cable on the torch is broken off or the switch is damaged.

Ø  The control circuit is damaged.(contact to dealers)

the meter shows; Fan works normally;

Abnormal indicator lights.

| Ø  It might be over-current protection, please turn off the power switch; restart the machine after the abnormal indicator light winked.

Ø  It might be overheating protection, please wait for about 2-3 minutes until the machine renew without turn off the power switch.

Ø  It might be a multifunction of inverter circuit. (contact dealers)

Even the machine comes up with abnormal phenomena such as welding unable, arc unstable or bad welding effect, it is still early to judge that there is a malfunction on the machine. The above-mentioned abnormal phenomenon may be caused by some reasons. For example, tight parts loosen, forgetting to switch on, wrong set up, cable broken and gas rubber pipe cracked, etc. Therefore, please test and inspect these factors before delivering it back to the factory because a large number of troubles may be easily solved probably. For this reason, an initial diagnosis list for general welding troubles is shown below. Trouble happened may be found in the column of “Abnormal items” on the up- right of the list, please inspect and maintain for the corresponding items which have the “〇” mark in the column according to the following list respectively.

Initial problems diagnose

Abnormal Items

Area and Item to be Inspected and Maintained

| No arc Starting| No Gas out| No Wire Feeding| Bad Arc Ignition| Unstable Arc| Dirt on Edge of Weld bead| Wire Stick to material| Wire Stick to Conductive Tip| Blowhole Formed
---|---|---|---|---|---|---|---|---|---

Distribution Boxes (Input Protection Devices)

| Ø   Turn on power supply or not?

Ø   Fuse burnt out

Ø   Connection joint loose

| ****

〇

| ****

〇

| ****

〇

| ****

〇

| ****

〇

| ****

〇

|  |  |

Input Cable

| Ø   Examine whether the cable is cut off.

Ø   Connection joint loose

Ø   Over heat

| ****

〇

|  |  | ****

〇

| ****

〇

| ****

〇

|  |  |

Welding Power Operation

| Ø   Turn on power supply or not?

Ø    Phase Lacking

| ****

〇

| ****

〇

| ****

〇

| ****

〇

| ****

〇

| ****

〇

| ****

〇

| ****

〇

|

Gas Cylinder and Gas Regulator

| Ø   Turn on gas supply

Ø   Residual Amount of Gas in the cylinder

Ø   Set value for flow

Ø   Connection joint loose

|  |  |  |  | ****

〇

|  |  |  | ****

〇

Gas supply hose (the whole line from the

high pressure cylinder to the weld gun)

| Ø   Connection joint loose

Ø   Gas hose damaged

|  |  |  |  |  |  |  |  | ****

〇

Wire Feeding Device

| Ø   Wire feeding wheel does not match with the diameter of wire in texturing tube

Ø   Crackle on wire feeding wheel, groove blocked up or defect

Ø   Too tight or loose of the handle

Ø   Wire powder accumulated on the inlet of SUS pipe

|  |  | ****

〇

| ****

〇

| ****

〇

| ****

〇

|  | ****

〇

|

Weld Gun and Cable

| ****

Ø   1. Weld gun cable rolled up or over curved

Ø   2. Adaptability of conductive tip, wire feeding pipe and cable diameter Worn, blocked up or deformation, etc.

|  |  |  | ****

〇

| ****

〇

| ****

〇

|  | ****

〇

|

Body of weld gun

| Ø   Loose connection of conductive tip, nozzle and nozzle contactor

Ø   Contactor of weld gun body is not plunged in or tightened

well

|  |  |  |  |  | ****

〇

|  |  | ****

〇

Power supply cable of weld gun as well as

cable of switch control

| Ø   Break off (bending fatigue)

Ø   Damaged by weighted drop

| ****

〇

| ****

〇

| ****

〇

|  | ****

〇

|  | ****

〇

|  |
Surface Condition of Parent material and

length that wire stretches out

| Ø   Oil, dirty, rust and paint residues

Ø   Too long length of wire stretched out

|  |  |  | ****

〇

| ****

〇

| ****

〇

| ****

〇

|  | ****

〇

Output Cable

| ****

Ø   Cross-section of cable that connects to parent material is not enough

|  |  |  | ****

〇

| ****

〇

| ****

〇

|  |  |
 | Ø   Loose connection of （+）,（-）output cable

Ø   Bad electric conductivity of parent material

|  |  |  |  |  |  |  |  |
---|---|---|---|---|---|---|---|---|---|---

Lengthened Cable

| Ø   Cross-section of cable is not enough

Ø   It is rolled up or folded

|  |  |  | ****

〇

| ****

〇

| ****

〇

| ****

〇

|  |

Work Condition for Welding

| Ø   Welding current, voltage, angle of weld gun, welding rate

and wire length stretched out should be confirmed once again

|  |  |  | ****

〇

| ****

〇

| ****

〇

| ****

〇

| ****

〇

|

Service GUARANTEE

This product is made of high-quality material and great care has been taken in its manufacture.It is designed to give good performance provided it is properly operated and maintained.The product is sold subject to the understanding that if any defect in manufacture or material shall appear within 12 months from date of consumer sale,if any defect in main parts over 12 months,the warranty period is subject to country Consumer Law, Our Service will arrange for such defect to be rectified without change under the following warranty items and conditions.
Warranty Terms and Conditions:
The defect is not due to use of the product for other than domestic purposes, or an incorrect voltage, or use of improper accessories,or contrary to operating instructions,or to accidental damage, misuse, neglect or inexpert repair, or incorrect installation, or the product is excessively used for improper purposes other than daily consumption, or accessories belonging to the product, transportation.
Thank you for choosing our products. Please feel free to give your precious suggestions, we will make efforts to perfect our products and service.

Warranty period from the purchase date:

1. One year warranty for welding and cutting machine.
2. 1 months warranty for welding accessories.
3. The warranty does not cover faults resulting from operation careless handing or not following instructions.

Customer service: service-eu@mirthtek.com
WhatsApp: +86 18938887689

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>