MECHAFIN PushPull Operating Instructions Manual

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Welding accessories - Swiss Quality

Operating Instructions for Mechafin PushPull

MECHAFIN AG has the right to make changes to the operating manual without prior notice, which

may be necessitated due to printing errors or potential neglect of the information contained the-

rein, or further product development. Any changes will then be listed in newer editions.

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Summary of Contents for MECHAFIN PushPull

Page 1 Welding accessories - Swiss Quality Operating Instructions for Mechafin PushPull MECHAFIN AG has the right to make changes to the operating manual without prior notice, which may be necessitated due to printing errors or potential neglect of the information contained the-...
Page 2: Table Of Contents
9.1. General information 9.2. Hose pack 9.3. Wire liner Disassembly and disposal Emergency Warranty Faults and how to remedy them Accessories and wear parts Length recommendation for the PUSH PULL Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 3: Assessment
Assessment The MECHAFIN AG intermediate drive is exclusively intended to weld with shielding gas. Welding can be carried out with inert gases (MIG), or active gases (MAG). The intermediate drive is intended for industrial and commercial use. It is available as gas or liquid cooled. A cooling unit is required for the liquid-cooled welding torches.
Page 4: Technical Data
117205 Euro Aluminium 15.0 Attention: these products exclusively concern the PushPull. The control unit must be ordered separately. You will find the list with the control units and corresponding parts on page 27. Operating instructions Intermediate drive PushPull MECHAFIN AG...
Page 5: Safety Instructions
Essential safety instructions This operating manual explains information to the user that is required for flawless and safe operation. NOTE No liability will be assumed by MECHAFIN AG If there is any material damage due to disregard of the operating manual. 3.2.
Page 6: Specific Hazard Instructions
Check that the equipment parts are correct for initial fitting. 4.1. Transport The product is always diligently checked and carefully packed before dispatch. However, damage occurring during transport cannot be excluded. Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 7: Function
In the event of inadvertent start-up, during maintenance, installation or repair work. Always take the following precautionary measures for the entire duration of the work: • Pull out mains plug • Shut off gas supply • Switch off the power source Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 8: Preparation For Welding
For the connection of a gas-cooled welding torch, the water connections can be bridged in systems that are intended for water cooling. This creates a connection between port A water supply (blue) and port B water return (red). Application only when using a gas-cooled burner. Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 9: Introducing Wire
To do so, open the housing, unlock the bayonet and pull the slider back. To open lift the pressure arm (dark grey) at position [1] with a slotted screwdriver. To close, press the pressure arm down until it locks into place. Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 10: Changing The Feed Roller
Open the Allen screw [1]. Replace the wire guide [2]. For exact positioning, make sure that the notch [3] is positioned under the Allen screw. Then carefully tighten the Allen screw again. 6.7. Exchanging the wire liner Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 11 Pull out the wire guide spiral again and cut off the measured length -1 cm, the cut edge must be deburred. Push the wire guide spiral back in and tighten the union nut again hand-tight with the open-end wrench. NOTE Always check that the wire guide is fastened correctly. Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 12: Coolant (This Is Only Required For Liquid-Cooled Welding Torches.)
• that the equipment parts have been fitted on the torch elbow for appropriate wire diameters. • that cooling unit functionality is ensured with liquid-cooled welding torch designs. Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 13: The Control Unit
0 .. ±50 V, max. 5 mA Motor output: ±3.6 V .. ±48 V, max. 3 A, software limited to 60 W Max. motor acceleration: 30 m/min/s Push-pull speed: ±1 m/min .. ±30 m/min Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 14: Pin Assignment
Switch on Switch on Switch on push-pull no function push-pull push-pull (Jog function) (Jog function) (Jog function) Confirm set parameter, no function no function no function jump to next parameter Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 15: Operation Overview
As soon as the error is eliminated, automatic change to the "STANDBY" or "RUN" mode The parameters can be adjusted with the "UP" and "DOWN" buttons. "STANDBY" mode "RUN" mode "Error" mode Display for 3 seconds Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 16 20 m = value 5.0 25 m = value 5.4 The value in the scheme on the right corre- sponds to a length of 20 m Display for 3 seconds Display for 3 seconds Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 17: Program Modes
„Lower UREF“ and „Upper UREF“. . These recorded values must be entered in the corresponding parameters „Lower speed“ and „Upper speed“. Upper speed Gain Lower speed Offset [Teach] procedure Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 18 1.) Select [Teach] config mode 2.) Ref gain: known gain of the line equation Value range: [0.1..5.0] m/min/V 3.) Ref offset: known OFFSET of the line equation Value range: ± [0..30.0] m/min Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 19 („Stand- by“). PushPull gain: This parameter is used to adjust the gain of the transfer function between the push-pull control and the push-pull motor. PushPull offset: With this parameter the offset of the transfer func- tion between the push-pull control and the push-pull motor can be set.
Page 20 Motor FAULT: Protection mechanism of the motor driver on the MMU 01 electronics has responded, the motor is switched off immediately. The error is cleared once the unit is switched into Standby mode Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 21: Commissioning The Intermediate Drive With The Control Unit
7.7. Commissioning the intermediate drive with the control unit The Mechafin control unit enables the Mechafin intermediate drives to be installed on most MIG/MAG welding machines. Before the first welding attempt, the machine, the control unit and the intermedi- ate drive must be adjusted to each other. (teach) For this purpose the components are connected as follows.
Page 22: Fastening The Control Unit
2.) The control unit can be fastened by means of the enclosed Velcro adhesive tapes. Now connect the welding system, intermediate drive and welding gun according to the following diagram. Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 23: Connecting The Intermediate Drive For Welding
If your welding torch has a liquid cooling system, connect the two connectors [6] (blue/red) to the corresponding connections on your intermediate drive. Connect the Euro plug of the welding torch [7] to the intermediate drive. Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 24: Starting The Welding Process
After the cooling unit fan has switched off, the power source can be turned off. • Now close the shielding gas cylinder shut-off valve to prevent gas loss. The welding process is completed. Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 25: Maintenance I Cleaning
• Check the coolant level in the cooling unit at regular interval! IMPORTANT – MECHAFIN AG offers factory repairs if a repair is required. • Always check the union nut of the hose pack to the power source for a tight fit.
Page 26: Disassembly And Disposal
These products mostly consist of metal materials, which can be melted down again. They can be re- used an almost unlimited number of times as a result. Packaging MECHAFIN AG has reduced the transport packaging to the essentials. Attention is paid to potential recycling when selecting packaging materials. Emergency Interrupt the power supply immediately in case of emergency.
Page 27: Faults And How To Remedy Them
 Check gas bottle, pressure settings  Shield welded joint with protective walls before the atmospheric air Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 28: Accessories And Wear Parts
Net weight [kg] 114301 Steel 109.5 0.015 114302 Steel 109.5 0.015 114303 Steel 109.5 0.015 114304 Steel 109.5 0.015 116049 Aluminium 109.5 0.007 116050 Aluminium 109.5 0.007 116051 Aluminium 109.5 0.007 Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 29: Length Recommendation For The Push Pull
Case hardening + tempering steel CrNi steel, Cr steel and other alloy steels, only in Argon: 97,5% Ni base alloys, duplex exceptional cases CO2: 2,5% and superduplex + 4m torch steels Operating instructions Intermediate drive PushPull MECHAFIN AG 03 / 2023...
Page 30 M a i l i n f o @ m e c h a f i n . c h | W e b w w w. m e c h a f i n . c o m Mail enquiries@mechafin.co.uk | Web www.mechafin.com...