Mid-Range Bar Threader Instruction Manual
Table of Contents Uncrating the Machine ....................................................... 3 – 4 Electrical ..................................................................................... 5 Center Rings ........................................................................ 6 – 7 Add Oil ....................................................................................... 8 Change Control Key .......................................................... 9 – 10 Change Chasers and Holders .........
Uncrating the Machine When uncrating the machine please follow these steps. If you have any questions please call erico Inc. at 1 (800) 822-7975. 1 2 Locate the front door panel. Loosen the eight bolts and wing-nuts securing the door. 3 4 Remove the front door. www.erico.com Remove the three bolts from the bottom of each side.
Uncrating the Machine 5 6 Slide the top off the base Machine on crate base 7 8 Remove the tie-down to lift machine from base The machine can now be lifted off the base 4 www.erico.
Electrical 1 2 The Mid-Range Bar Threader requires 220-240 volt, 3 phase power. A four-pronged locking plug as shown is standard. After connecting the power be sure the head of the bar threader is rotating in the direction indicated by the red arrow on the hood. If it is not rotating in the correct direction, switch any two of the power leads in the plug. Power Panel Inverter Box 3 Inverter Main Power Disconnect Switch 4 View of Inverter Box and Power Panel.
Center Rings 1 2 Before adjusting the table height, you must first loosen each collar located at the bottom of each table leg. Adjust the table height with a ½” square drive ratchet using a ¾” standard drive socket. 3 4 To obtain the best centering of the rebar into the threading machine, the best fitting set of center rings should be used. We offer two or three different size sets per bar.
Center Rings 5 6 To change centers to a different bar size or to go with a set that fits the bar better, push in the release ring and pull out the existing center. Put in the new center and lock it in place by letting loose of the release ring. www.erico.com When threading a #14 or #18 bar, the adaptor ring must be removed. This is done in the same way you remove the center ring as in the previous step.
Add Oil 1 2 Prior to threading, the oil must be added. Pour the oil onto the chip funnel and it will flow into the oil reservoir. Only part # ELOIL should be used. The reservoir is properly filled when the oil level is at the top of the sight glass. 8 www.erico.
Change Control Key 1A 1B Remove the cover plate bolts. Three bolts hold it in place. 2 3 Remove the holders from the head of the bar threader. To change the key, remove the screw, compression spring, and the support rod from the head. 4 5 To remove the control block loosen the support rod bushing and pull out the support rod and spring. This will free the control block to fall down. www.erico.com Loosen the front bearing and remove the rear bearing.
Change Control Key 6 7 Slide the key out. Each key is stamped on the front with the metric bar size. Slide in the new key and replace and tighten both the front and rear bearings. 8 9 Before tightening the threaded bushing down make sure that carriage is all the way back to the right. While holding the feed handle back move your control ring handle forward into step drum position number three.
Change Chasers and Holders 1A 1B Remove the face plate bolts. Three bolts hold it in place. 2 3 Remove the holders from the head of the bar threader. Loosen the set screw as shown above. 4A 4B Slide the chaser out of the holder. www.erico.com Chasers and holders have matching numbers. The number 1 chaser goes into the number 1 holder, etc.
Change Chasers and Holders 5 6 Before installing the chaser make sure the woodruff key is tight. Press on both ends of the woodruff key with an allen wrench, it should not move. To replace a woodruff key, set the key into the slot by hand and drive into position using a hammer and punch. 7 8A Take the hold down pin (ELMP203PIN) and place it through the hole of the chaser as shown above.
Change Chasers and Holders 10A 10B Before replacing the holders make sure the cavity in the head and the holders are clear and free of chips. Wipe all flat surfaces with a clean rag. 11A 11B Step 1 – insert holder #1 as shown. The number 1 holder with the slot in it to accept the control block must be replaced first, followed by holders 4, 2 and 3. 11C 11D Step 2 – Slide holder #4 into position www.erico.
Change Chasers and Holders 11E 12 Step 4 – Slide #3 holder into position. After sliding all of the holders into position, use your thumbnail to make sure that the holders are recessed inside the cutting square. 13 14 After the holders have been installed in the cutting square, check that the numbers on the face of the holders match the corresponding numbers on the face of the cutting square. After installing the chaser holders, check to see that they do not protrude outside of the cutting head.
Change Chasers and Holders 16 17 Stone the flat surfaces in the cutting square. Stone the flat surfaces on the chaser holder. 18 19 After the holders are installed into the head correctly, wipe off the face plate and align to the head. Stone the cover plate. 20 21 Fasten face plate to the head. www.erico.com Turn on the machine and move the body of the machine back and forth to make sure the holders are opening and closing properly. A “gushing” sound can be heard if they are working properly.
Change Control Block 1A 1B To change the control block, remove the face plate. Three bolts hold it in place. 2 3 Remove the chaser holders from the cutting square as shown above. To remove the control block loosen the support rod screw and pull out the support rod and spring. This will free the control block to fall down. 4 5 Position the new control block as shown. Replace the support rod, spring, and screw. The support rod goes through the hole in the control block.
Change Control Block 6 7 Wipe the holders clean of any chips and contaminants. The number 1 holder with the slot in it to accept the control block must be replaced first. Followed by holders 4, 2 and 3. 8 9 After the holders have been installed in the cutting square, check that the numbers on the face of the holders match the corresponding numbers on the cutting square face.
Change Control Block 11A 11B After the holders are installed into the head correctly, wipe off the face plate and fasten it to the head. 12 Turn on the machine and move the body of the machine back and forth to make sure the holders are opening and closing properly. A “gushing” sound can be heard if they are working properly. 18 www.erico.
Threading Operation 1 2 Prior to positioning the rebar in the machine, be sure that the machine carriage is all the way back to the right. Also be sure that the step drum is in the correct starting notch. Bar Stop 3 4 Position the Bar Stop so that it covers the hole in the face plate. Butt the rebar up against it. This assures the correct bar placement into the bar threader. Once the bar is in position tighten the vise. Make sure the vise is good and tight to prevent bar rotation during threading.
Threading Operation 7 8 Make sure oil is flowing into the head of the bar threader. If it is, then with the right hand handle move the body of the bar threader forward. Apply pressure on the handle once the cutters are in contact with the bar, for at least one half turn of the handle. After this initial engagement the body of the machine will move forward automatically.
Checking Threads and Bar End Engagement 1 2 The thread profile should be checked with a brand new chaser. To check the bar end diameter after threading slide the bar end gauge over the bar and look to see if the end of the bar falls within the step range of the gauge. 3 If the diameter of the bar is off, the adjustment screw is used to make up the difference. The adjustment screw is located at the back of the machine.
Maintenance 1 2 First step is to remove the pin located on the chip drawer. Machine chips are caught in the screened drawer above the oil reservoir. The drawer should be emptied as required during the machining run and at the end of the day. 3 At the end of each day 15 minutes should be put aside to drain the oil and clean out the oil reservoir. The oil is drained by loosening and removing the drain plug at the side of the oil reservoir. An oil pan and crescent wrench is provided to accomplish this.
Troubleshooting 1. If the LENTON bar threader will not start, check the following: 4. If the chasers are wearing prematurely, check the following: a. Check that the machine is plugged in and the power is on. a. Improper oil flow. b. Harder than normal rebar. b. Machine hood must be in the forward position. c. The correct electrical power must be used. See “Electrical” section. 5. If the bar threader will not engage the rebar, check the following: a. Is the bar stop moved out of the way. 2.
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