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Operating Instructions
Code 790 044 762
RA 21 and RA 21 Special
Pipe Cutting and
Bevelling Machines
GEORG FISCHER +GF+
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These operating instructions are part of machine no.: ......................... All rights retained, in particular the rights to reproduction, dissemination and translation. Copying or reproduction in any form (print, photocopy, microfilm or data acquisition) require written permission from Georg Fischer Rohrverbindungs- technik GmbH.
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Table of Contents Page 0 About these operating instructions 1 1 Notes on safety 2 2 Description of the pipe cutter 4 3 Features and scope of application of the pipe cutter 5 4 Technical specifications 7 5 Commissioning 8 5.1 Checking the scope of delivery 8 5.2 Transporting and assembling the pipe cutter 9 6 Operation 10 6.1 Fitting the saw blade / additional cutter 10 6.2 Adjusting the pipe diameter 12 6.3 Adjusting the additional cutter 13 6.4 Using stops 14 6.5 Cutting the pipe 16 6.6 Cutting
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GEORG FISCHER +GF+ II
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0 About these operating instructions The symbols used in this manual are explained here to help you quickly understand the operating instructions and use them effectively. Symbols Note on safety This general hazard symbol accompa- nies passages of text which you should read and understand under all circum- stances. By failing to do so you could endanger yourself and others. Important information Passages of text which convey important information are accompanied by this symbol. Failing to observ
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1 Notes on safety The RA 21/RA 21 Special Pipe Cutting and Bevelling Machine (referred to as a pipe cutter in the following) is a state-of-the-art machine. Using it for purposes other than those described in this manual may cause injury to the user or to others. It may also damage the machine or other equipment. Therefore: º Always ensure that the machine is in good working order and always comply with these notes on safety. Proper use º Only use the materials and types of pipe specified in this
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Working with safety in mind "Make your contribution to safety at the workplace." Report any unusual behaviour on the part of the machine to the person in charge immediately. Always work with safety in mind. º Wear safety goggles during cutting and bevelling operations. º Switch the RA 21 (S) off after completing each stage of work and allow the machine to run a stop. º Disconnect from the mains before cleaning the pipe cutter. The cutter and saw blade may cause injury. Therefore: º Keep your han
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2 Description of the pipe cutter The pipe cutter is a robust, user-friendly, service-friendly and safety-oriented design. Vise and saw All mechanically stressed parts are metal. The rounded, smooth edges help to avoid accidents. The saw blade and jaws are close togethers which reduces vibrations during cutting. Motor and power cable The motor can be easily removed. The motor housing and switches are made from lightweight, impact-resistant plastic. Integrated into the power cable is a slipring co
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3 Features and scope of application of the pipe cutter The pipe cutter º is a fully configured working machine suitable for workshop and building site operation; º is part of the combined KM 2 and GTM 2 pipe cutting and threading machines; º works using the safety-enhancing principle: stationary pipe, rotating tool. The pipe cutter is suitable for º cutting and º bevelling pipes. The cut pipes are free from burr, so no deburring (in- or outside) is required. This reduces the risk of corrosion. S
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The following materials can be used: º steel, black or galvanised º chrome and stainless steel (up to 2.5 mm wall thickness) º aluminium º non-ferrous metals (e.g. copper, brass) º plastics (PE, PP, PVDE, PVC) Other materials on request. Do not use cast pipes with glass-hard surfaces (GG). 6 GEORG FISCHER +GF+¹
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4 Technical specifications Manufacturer Georg Fischer Rohrverbindungstechnik GmbH D-78224 Singen Dimensions 300 x 450 x 300 mm Weight (incl. vise) 34 kg Power 550 W Protection class Totally insulated in accordance with Class II DIN VDE 0740 Speed 180 rpm Versions 1-phase AC 110 ... 120 V, 50/60 Hz 230 ... 240 V, 50/60 Hz Sound pressure level at the workplace at idle: approx. 82 dB (A) under load: approx. 84 dB (A) As the noise level may also exceed 84 dB (A) under unfavourable operating conditio
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5 Commissioning 5.1 Checking the scope of delivery Check all parts of the delivery for completeness and transport damage. Please report missing parts or transport damage to the support immediately. Normal accessories (subject to change without notice) º 1 saw blade º 1 ring spanner, 22 mm º 1 brush º 2 hexagon Allen keys º 1 tube of saw blade lubricant º 1 quick mounting base plate º 1 tube of special gear oil 8 GEORG FISCHER +GF+¹
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5.2 Transporting and assembling the pipe cutter Transport Disconnect from the power supply before transporting, mounting or dismounting and allow the machine to run a stop. Mounting the quick mounting base plate The pipe cutter with the vise is mounted either º on the quick mounting base plate, or º on the quick mounting base plate (special accessory) with clamps. !Mark and punch the bolt holes on the work bench. Use the quick- mounting baseplate as a template. !Drill 13 mm Ø holes. !Bolt down t
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6 Operation 6.1 Fitting the saw blade / additional cutter Disconnect the mains plug before fitting or changing the tool. The saw blade/additional cutter must be free from chips and dirt. Use only original Georg Fischer saw blades and cutters. The inscription on the saw blade (1) must always face the pipe cutter. Observe sign for saw blade guard. Preparatory work !Loosen the locking screw (1). !Turn the pipe cutter upwards 180° clockwise. !Tighten the locking screw (1). !Clean the saw blade
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Fitting the saw blade !Mount the following on the shaft (1): º saw blade (3) º clamping disk (4) code RA 21: 790 041 188 code RA 21 S: 790 044 192 !Tighten the nut (5) by turning counter- clockwise. Left-hand thread. !Loosen the locking screw (2). !Turn the pipe cutter clockwise back down into its home position. Fitting the saw blade and additional cutter !Mount the following on the shaft (1): RA 21: º saw blade (3) º additional cutter (4) º clamping disk (5) RA 21 S: º saw blade (
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6.2 Adjusting the pipe diameter Threaded pipes to DIN 2440 open !Release the lever (1). !Select pipe diameter on the scale (3). !Set the red mark on the left side of the stop (2) to the corre- sponding number. !Tighten the lever (1). All other types of pipe !Insert the pipe in the vise. !Move the pipe almost up to the saw blade. !Tighten the pipe in the vise. !Release the lever (1) and set the stop (2) to position 2". Do not tighten. !Raise the motor of the pipe cutter
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6.3 Adjusting the additional cutter Simultaneous cutting and bevelling of steel pipes up to a wall thickness of 4.5 mm is possible. !Insert the pipe in the vise. !Move the pipe almost up to the additional cutter. !Clamp the pipe in the vise. !Release the lever (1) and set the stop (2) to position 2". Do not tighten. !Raise the motor of the pipe cutter as if to start cutting, until the cutter covers the wall of the pipe. !Tighten the lever (1). !Do a test bevel and check the result (s
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6.4 Using stops Length gauge up to 250 mm !Mount the length gauge (1). !Swing the stop (2) in to the middle of the pipe and engage. !Release the cross knob (3). !Set to the desired length. Use the scale. !Tighten the cross knob. !Push the pipe for- wards up to the stop and clamp. !Swing the stop clear. !Cut the pipe. Length gauge over 250 mm !Mount the length gauge (1). !Swing the stop in to the middle of the pipe. !Use a yardstick to extend the stop to the desired length. !Push the cl
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!Tighten the clamp. !Push the pipe up against the stop and clamp. !Swing the stop out and push all the way back. !Cut the pipe. !For the next cut, extend the stop and swing into place clockwise. 15 GEORG FISCHER +GF+
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6.5 Cutting the pipe Cut thin-walled chrome and stainless steel pipe up to 1.5 mm wall thickness only with RA 21 Special. Put on safety goggles before cutting. !Connect the pipe cutter to the mains. !Apply saw blade lubricant to the saw blade teeth. Repeat the lubrication every three cuts. If in contact with drinking water or foodstuffs, use only Georg Fischer lubricating gel. !Mark the cutting location on the pipe. !Insert the pipe in the vise. !Push the marked cutting location over
