ROLLER GP-TRACK-SINGLE FLANGE 2789539 - Caterpillar

Use only low hydrogen AWS E7018 Electrodes to make welds. All electrodes must be completely dry. Do not weld in areas where there is a strong movement of air, or in temperatures of less than 60°F (16°C).
Fabrication Of Rear Reinforcement Plates And Installation Of Lifting Eyes
(1) For machines with lifting eyes like shown, make spacers (1) and (2). (2) For machines with lifting eyes (4) like shown, remove the eyes with an Arcair torch or similar tool. Cut the eyes to the dimensions shown. Make repairs as necessary to welds on the tube where the eye was removed.(3) Weld the eyes to the tube as shown with .62" (15.7) bevel groove welds (A), both sides, followed by .62" (15.7) fillet welds. (4) For the machines shown in step 2 above, make spacers (1) and (3) as shown in step 1, but do not cut out the 1.75" (44.5) wide section from spacer (1). (5) Make two plates (5) for each machine. One is needed on each side of the bowl to fit against the spreader tube. As shown in section F-F, make .25" (6.35) x 45° chamfers at locations (C). Drill five .750" Ø (19.1 Ø) holes (B) in the plates. (6) For each machine, make two plates (6). One is needed on each side of the bowl to cover the bowl outer surface at the spreader tube joint. Drill ten .750" Ø (19.1 Ø) holes (B) in the plates.Fabrication Of Front Reinforcement Plates
(1) Make two plates (7) for each machine as shown. Drill eleven .750" Ø (19.1 Ø) holes (A) in the plates. The plates are needed for the outside front of the bowl. (2) Make right hand plate (8) and left hand plate (9) as shown. The plates are needed for the inside front of the bowl.Installation Of Rear Reinforcement Plates
(1) Move the ejector to the front. Lower the bowl cutting edge to the ground and shut off the engine. If the scraper is equipped with an overflow guard, fasten a hoist to the guard, remove the welds from brackets (10) with an Arcair torch and remove the guard. Grind the area smooth. Cut .38" (9.7) from the outer edges of the ejector at location (A); this will give approximately .38" (9.7) clearance between the ejector and reinforcement plate (5) after it is installed. Weld and grind smooth any cracks seen in the bowl sides.(2) Fasten spacers (1) and (3) and inner plate (5) in place with tack welds; use outer plate (6) to get spacers (1) and (3) in the correct position, but do not install plate (6) at this time. See sections Z-Z, Y-Y, X-X and W-W. Make a .22" (5.6) bevel groove weld (B) from location (C) to location (D) when spacer (3) is used, and to location (E) when spacer (2) is used. Make a .25" (6.4) flare-bevel groove weld (F) from location (D) to location (G), and tack weld outer plate (6) in position. Make .06" (1.5) square groove