Caterpillar Cat D6R TRACK-TYPE TRACTOR (Prefix 4JR) Service Repair Manual Instant Download

Service Repair Manual Models D6R TRACK-TYPE TRACTOR

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 1/8 Shutdown SIS Previous Screen Product: TRACK-TYPE TRACTOR Model: D6R TRACK-TYPE TRACTOR 4JR Configuration: D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine Disassembly and Assembly D6R TRACK-TYPE TRACTOR POWER TRAIN Media Number -SENR8357-02 Publication Date -01/05/2005 Date Updated -03/06/2014 SENR83570003 Track Rollers SMCS - 4180-010; 4180-015; 4180-016 Remove & Install Track Rollers 1. Loosen the track. NOTE: Refer to "Separation Of Track" in this module for proper procedure. 2. Use Tooling (A) and lift the side of the tractor from which the roller is to be removed. 3. Put Tooling (B) in position to support the tractor and lower Tooling (A). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 2/8 4. Fasten a hoist and suitable lifting device to Tool (C). Put Tool (C) in position under the roller as shown. 5. Remove bolts (3) and caps (1) from each side of the roller. 6. Remove track roller (2) from the machine. The weight of the track roller is 30 kg (66 lb). NOTE: The following steps are for installation of the track rollers. 7. Fasten a hoist and suitable lifting device to Tool (C). Align the flat side of the roller shaft with the roller frame and put track roller (2) in position. 8. Put caps (1) in position on each side of the roller and install bolts. 9. Use Tooling (A) to raise the side of the tractor. Remove Tooling (B). Lower the tractor to the ground with Tooling (A). 10. Adjust the track tension. NOTE: For adjusting the tension on the tracks, refer to the topic "Adjust Tracks" in the Operation & Maintenance Manual. Disassemble Track Rollers Start By: a. remove track rollers Fluid Spillage Containment Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to "Tools And Shop Products Guide", NENG2500 for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates. 1. Use a hammer and punch, to remove the plug out of stopper (2). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

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D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 3/8 NOTE: Removal of the plug and stopper (2) requires damaging stopper (2). 2. Use a slow speed drill and 12.7 mm (.50 in) drill bit, and remove stopper (2) from the shaft. 3. Remove lock ring (3) and end collar (1) from both sides of the track roller. NOTE: If the Duo-Cone Seals are to be used again, put identification marks on the seals to assure that they are assembled and installed in their original positions. 4. Remove Duo-Cone seal assembly (4) from end collar (1). 5. Use Tool (A) and remove retaining ring (5) from rim assembly (6). 6. Repeat step 5 for opposite side. 7. Use a press and roller shaft (7) to remove the bushing assembly on the opposite side. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 4/8 8. Rotate the roller assembly over 180 degrees. Use a press and roller shaft (7) to remove the remaining bushing assembly. 9. Remove O-ring seals (8) from roller shaft (7). 10. Remove O-ring seal (9) from bushing assembly (10). 11. Remove Duo-Cone seal assembly (11) from bushing assembly (10). Assemble Track Rollers NOTE: Refer to the topic "Conventional Duo-Cone Seals" for further information prior to assembling the track rollers. 1. Clean and inspect all parts for wear or damage and replace if needed. 2. Make sure all parts are free of oil, film, dirt or other foreign material before assembling. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 5/8 3. Install O-ring (9) on bushing assembly (10). NOTE: Refer to the topic "Conventional Duo-Cone Seals" for proper installation procedure. 4. Use Tooling (B) to install Duo-Cone seal assembly (11) in bushing assembly (10). 5. Lubricate O-ring seals (8) lightly with SAE 30W oil. Install O-ring seals (8) on track roller shaft (7). 6. Lubricate the bore of rim assembly (6), outside surface and seal of bushing assembly (10) lightly with SAE 30W oil. Use a press and Tool (C) to install bushing assembly (10) in rim assembly (6). Bushing assembly (10) should just clear the retaining groove in rim assembly (6). 7. Use Tool (A) to install retaining ring (5) in rim assembly (6). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 6/8 NOTICE The bushing assembly in track roller (6) can be damaged when shaft (7) is installed in rim assembly (6). Use care when positioning shaft (7). 8. Rotate the track roller assembly over 180 degrees and install track roller shaft (7) in rim assembly (6). 9. Lubricate the bore of rim assembly (6), outside surface and seal of bushing assembly (10) lightly with SAE 30W oil. Use a press and Tool (C) to install remaining bushing assembly (10). Bushing assembly (10) should just clear the retaining ring groove in rim assembly (6). 10. Use Tool (A) and install retaining ring (5) in rim assembly (6). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 7/8 11. Rotate the track roller assembly over 180 degrees. Use a press against track roller shaft (7) to move the opposite bushing assembly (10) out against retaining ring (5). NOTE: Refer to the topic "Conventional Duo-Cone Seals" for proper installation procedure. 12. Use Tooling (B) and install Duo-Cone seal assembly (4) in end collar (1). 13. Install end collar (1) and lock ring (3) on track roller shaft (7). 14. Repeat steps 12 and 13 to install the remaining end collar (1) on the opposite end of track roller shaft (7). 15. Use Tool (D) to pressure test the track roller as follows: a. Use air (free of water) to pressurize the track roller to 280 kPa (41 psi). b. Observe the pressure reading of the track roller. The pressure should remain the same for ten seconds. A reduction in pressure in ten seconds or less indicates a leak in the track roller. In the event of a leak, the track roller must be disassembled and checked. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 8/8 Typical Example 16. Use Tool (E) to check the end play of shaft (7). The end play should be 0.25 to 1.33 mm (.010 to .052 in). 17. Fill track roller with 410 25 ml (13.9 .8 oz) of SAE 30W oil. The track roller should be filled through the opening in shaft (7) for the plug and stopper (2). Typical Example 18. Put clean oil on a new stopper (2). Install stopper (2) in the end of shaft (8). The outside face of stopper (2) should be 7 7 mm (.275 .275 in) below the chamfer of shaft (8). 19. Use Tool (F) to install the plug in stopper (2). The outside surfaces of the plug and stopper must be flush. End By: a. install track rollers Copyright 1993 - 2020 Caterpillar Inc. Wed Apr 29 11:38:38 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 1/15 Shutdown SIS Previous Screen Product: TRACK-TYPE TRACTOR Model: D6R TRACK-TYPE TRACTOR 4JR Configuration: D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine Disassembly and Assembly D6R TRACK-TYPE TRACTOR POWER TRAIN Media Number -SENR8357-02 Publication Date -01/05/2005 Date Updated -03/06/2014 SENR83570004 Track SMCS - 4170-077; 4170-010; 4170-015; 4170-016; 4170-076 Separate Track The machine must be on a level hard surface before a separation of the track is made. Any time a separation of both tracks is made the machine must have blocks correctly in position so the machine will not move. Typical 1. Remove track adjuster cover (1) and the O-ring seal from the roller frame. The adjuster cylinder for the track is under high hydraulic pressure. Do not visually inspect the relief valve to see if grease is released when it is https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 2/15 open. Look to see that the track has loosened. Use this warning any time the tracks are loosened or tightened. 2. Loosen the track as follows: a. Turn the relief valve (2) one turn counterclockwise to permit grease to be released from the track adjuster. If the track does not loosen go to Step b. b. Turn fill valve (3) one turn counterclockwise to permit grease to be released from the track adjuster. If the track still does not loosen, start the machine and move it forward and backward. If grease is still not released go to Step c. c. Install a piece of round bar stock between the bushing and sprocket inside the links. Move the machine to the rear so the track will be pushed up by the round bar stock. This will put tension on the track and move the track adjuster in. 3. Move the track until the master link is just above the centerline of rear idler (4). Put wood blocks under the grouser bar just below the master link. Move the track to the rear until it has rigid contact with the wooden blocks. 4. The weight of the master shoe is from 19.5 kg to 37.5 kg (43 lbs to 82.5 lbs), depending on which track the vehicle is equipped. Remove four bolts (5) and master shoe (6). 5. Separate master link (7). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 3/15 Keep away from the front of the machine when the track is pushed off of the final drive. A minimum distance of 6.1 m (20 ft) is needed in front of the track to permit the track to move out on to the floor. 6. Fasten a chain to the end of the track and to a wheel loader or similar machine. Turn the final drive in a forward direction and let track (8) fall forward, as the wheel loader or similar machine is moved forward. 7. The weight of the track is from 1676 to 2602 kg (3687 to 5724 lbs) depending on which track the machine has on it. Lift the side of the machine and remove the track if necessary. Connect Track 1. Put the track under the machine. Lower the side of the machine on to track (8). 2. Fasten one end of the chain to track (8) and the other end to a wheel loader or a similar machine. NOTICE To avoid damage to the track or to the machine, the track must be pulled in a straight line. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 4/15 3. Pull the track until the track bushings engage with the sprocket segments on the final drive. 4. Start the machine and turn the final drive in a reverse direction to pull the track together. 5. Lift the end of the track and put wooden blocks (9) under the grouser as shown. NOTE: Make sure the serrations on the master link are free of loose or thick rust, paint, and lubricants. 6. Align the lower end of master link (7) with the upper end of the master link. Make sure the teeth of both ends of the master link are engaged. 7. Put track shoe (6) in position on the master link. Put 2P2506 Thread Lubricant on the threads, body and washer face of the master link bolts. Install bolts (5) that hold the master link together. Tighten the bolts to a torque of 400 70 N m (300 50 lb ft). Tighten the bolts an additional 1/3 of a turn. For inspection purposes, after assembly, the final torque must be a minimum of 680 N m (500 lb ft). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 5/15 8. Tighten relief valve (2) and fill valve (3) in the track adjuster to a torque of 35 7 N m (25 5 lb ft). NOTICE Measure the track (sag), distance from a straight line when the machine is in its working condition. If dirt and debris are present in its working condition, then measure the (sag) when normal dirt and debris are present in the track and its components. 9. Adjust the track as follows: a. Move the machine forward for a distance that is two times the length of the machine. Let it come to a stop without the use of the brakes. b. Put a tight line between the grouser tips at the sprocket and front idler. c. Measure distance (X) from the line to the lowest point of (sag) of the grouser tips. Put 5P960 Multipurpose Type Grease in the track adjuster and make an adjustment to the track until distance (X) is 115 10 mm (4.53 .40 in). This is the sag (curve) in the track between the sprocket and the front idler. d. Do not tighten the track more if distance (Y) is 150 mm (5.9 in) or more. The track will have to be removed and reconditioned. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 6/15 10. Install the track adjuster cover (1) and O-ring seal onto the roller frame. Track Adjustment-Adjust Grease is under high pressure. Grease coming out of the relief valve under pressure can penetrate the body causing injury or death. Do not watch the relief valve to see if grease is escaping. Watch the track or track adjustment cylinder to see if the track is being loosened. Loosen the relief valve only one turn. 1. Move the machine forward. Allow the machine to stop without the use of service brakes. Adjust the tracks while you are in the machine's typical operating conditions. If packing conditions prevail on the workplace, the tracks should be adjusted with packing material. NOTICE Do not attempt to tighten track when dimension (1) is 105 mm (4.13 in) or more. Contact your Caterpillar dealer for track service instructions. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 7/15 2. The sag in the track is measured between the sprocket and the front idler (2). The correct adjustment of dimension (2) is 100 10 mm (3.9 .40 in). 3. If the machine is equipped with a carrier roller, the correct adjustment of dimension (3) and dimension (4) is 130 10 mm (5.12 .38 in). Disassemble Track https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 8/15 1. Put the track pin, to be removed, in position behind the front idler as shown. 2. Put blocks (2) in position under the front of the track. 3. Put blocks (3) in position under the track to keep the track away from the track roller frame when the pressure is released in the track adjuster. 4. Release the pressure in the track adjuster. See topic, Separate Track. 5. Put Tool (A) in position as shown. Use Tool (A) to keep the track in position when the track pins are removed. 6. Remove the bolts, and use two persons to remove three track shoes (1) over the track pins to be removed. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 9/15 7. Fasten a hoist to Tooling (B). Put Tooling (B) in position against the track pin. 8. Push the track pin out of the track with Tool (B), and install Tool (C) to hold the track together until the other track pin is removed. 9. Put Tooling (B) in position against track pin (4). Push track pin (4) out of the track, and install Tool (C). Remove Tooling (B) from the track. 10. Put Tooling (D) in position between links (6) and (7). Use Tooling (D) to spread the links apart far enough to move link (5) away from links (6) and (7). 11. Remove Tooling (C) from links (5), (6) and (7) NOTICE Use care when moving the links apart so the face of the seals are not damaged. 12. Fasten a hoist to link (5). Move the link away from links (6) and (7). 13. Put a block under link (5) to keep it away from links (6) and (7) 14. Put Tooling (D) in position between links (9) and (10). Use Tooling (D) to spread the links apart far enough to remove link assembly (8). 15. Fasten a hoist to link assembly (8). 16. Remove Tool (C) from links (9) and (10) and link assembly (8), and remove the link assembly. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(... 10/15 17. Remove seal assemblies (11) from the track links. 18. Put the track links and track bushing in position in Tooling (E) as shown. Push the track bushing from track link (6). 19. Put track link (7) and the track bushing in position in Tooling (E). Remove the track bushing from track link (7). 20. Use a punch and hammer, and remove plug (12) from stopper (13) in the track pins. 21. Remove stoppers (13) from the track pins. Assemble Track https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(... 11/15 NOTE: Check all parts of the track assembly for wear or damage. Make replacements if necessary. Make sure the parts are clean and dry before assembly. 1. Put 1P3482 Adapter (2) [part of Tooling (A)] in frame (1) of the press arrangement [part of Tooling (A)] with the counterbore toward the ram as shown. NOTICE Use a maximum force of 760 kN (170 000 lb) when the track is assembled. Excessive press force can cause damage to the thrust rings. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(... 12/15 2. Put SAE 90 gear oil on each end of track bushing (4) for a minimum length of 5 mm (.197 in). 3. Use Tooling (A), and install track bushing (4) into track link (3). Push the track bushing in until it makes contact with Tooling (A). The track bushing must extend 1.76 0.13 mm (.069 .005 in) above the surface of the track link. 4. Put track link (5), track bushing (4) and track link (3) in position in Tooling (B). Install pin (6) [part of Tooling (B)] for alignment purposes. Use Tooling (B), and install the track link on the track bushing until the track makes contact with Tooling (B). The track bushing must extend 1.76 0.13 mm (.069 .005 in) above the surface of the track link. NOTICE The seal assemblies must be completely sealed in the track link counterbores. The load rings of the seal assemblies must make a minimum amount of contact with oil. Oil causes the load ring to expand. This is not desired until after assembly. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(... 13/15 NOTE: Make sure there is contact at area (X) between the seal and load ring. 5. Use Tool (C) and install the seal assemblies (the seals and load rings) in the track links as shown in illustration A82927P1. 6. Put oil on stoppers (7), and install them in track pins (8). The stopper must be installed to a depth of 8 4 mm (.315 .157 in) below the surface of the track pins. 7. Put Tooling (D) in position between the track links. Use Tooling (D) to spread the links apart far enough to install link assembly (9) 8. Fasten a hoist to link assembly (9). Put the link assembly in position, and install Tooling (E) to hold it in place. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(... 14/15 9. Put Tooling (D) in position between links in link assembly (9). Use Tooling (D) to spread the links apart far enough to install link assembly (10). 10. Fasten a hoist to link assembly (10). Put the link assembly in position on the link assembly (9). 11. Align the pin hole in link assembly (10) with the hole in link assembly (9), and install tool (E). 12. Fasten a hoist to Tooling (F). Put Tooling (F) and track pin (12) in position on the track links. NOTE: The pin must be installed with the hole end on the same side of the track assembly for the entire length of the track assembly. The oil cross hole in the pin must be within 20 of the vertical centerline of the pin bore and closest to the rail of the link. The pins have a mark on the end for crosshole location. Also, the pin must be installed with a minimum amount of force to get a maximum amount of end play 0.13 mm (.005 in) between the bushing and the thrust ring. 13. Install track pin (12) with Tooling (F) until the pin extends 3.22 mm (.127 in) beyond the link assembly on both sides. 14. Put track pin (11) and Tooling (F) in position on the track links. Install track pin (11) until it extends a maximum of 3.22 mm (.127 in) beyond the link assembly on both sides. 15. Use two persons, and put three track shoes (13) in position. Put 2P2506 Thread Lubricant on the threads, body and washer's face of the master link bolts. Install the track shoe bolts and nuts. Make sure the radius corner of the nuts are away from the links. Tighten the bolts to a torque of 400 70 N m (300 50 lb ft). Tighten the bolts 1/3 turn more. For inspection purposes, after assembly, the final torque must be a minimum of 680 N m (500 lb ft). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(... 15/15 16. Remove Tooling (G). 17. Fill the track pins with a minimum of 50.0 ml (1.7 oz) of SAE 90 gear oil. 18. Put oil on the plug, and install the plug in the stopper in the end of the track pin with Tool (H). Install the plug until it is even with the end of the stopper. 19. Adjust the track. See topic, separate And Connect Track in this module for the adjustment procedure. Copyright 1993 - 2020 Caterpillar Inc. Wed Apr 29 11:39:27 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 1/4 Shutdown SIS Previous Screen Product: TRACK-TYPE TRACTOR Model: D6R TRACK-TYPE TRACTOR 4JR Configuration: D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine Disassembly and Assembly D6R TRACK-TYPE TRACTOR POWER TRAIN Media Number -SENR8357-02 Publication Date -01/05/2005 Date Updated -03/06/2014 SENR83570005 Field Repair for Dry Joints in Rotating Bushing Track (RBT) SMCS - 4170 D7R Tractors Equipped with Rotating Bushing Track (RBT) Introduction NOTE: Seals are not shown. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 2/4 Components of rotating bushing track. (1) Bushing. (2) Inner seals and thrust rings. (3) Outer seals and thrust rings. (4) Pin groove. (5) Inserts. The bushings are located between the track links and are not pressed into the bushing bores. Inner seal and thrust ring (2) and insert (5) are located in each bushing bore. Insert (5) is factory installed and is not serviceable. A portion of the pin boss is extruded (pressed) down and into groove (4) in the end of the pin. The process of pressing the link material helps to retain the pin in the joints. The extrusion process (method) of retaining the pins is a factory assembled procedure. Tools are not yet available to do this type of pin retention in a field repair situation. A welding procedure is available, however, for use in retaining the pins in a field repair of rotating bushing track. The procedure given in this Special Instruction can be used to replace a damaged joint in rotating bushing track (RBT). When this procedure is followed precisely, the joints can be welded without causing damage to the non-metallic parts, including the seals, that are inside the joint. Do not perform any procedure, outlined in this publication, or order any parts until you read and understand the information contained within. Reference: For more detail refer to, Special Instruction SEHS8957, "Repair Procedure for Non- Restrained Seals and Lubricated Track". https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

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D6R Track-Type Tractor 4JR00001-UP (MACHINE) POWERED BY 3306 Engine(S... 3/4 Repair Procedure Disassembly Make reference to Special Instruction, SEHS8957, for a complete list of tools, field repair procedure, and any additional information that may be needed. Standard tools for the D6H Tractor can be used in the procedure. 1. Inspect the track and locate the dry joint. 2. Follow the procedure given under the topic entitled "Link Section Removal of Damaged Joint" in the reference Special Instruction. 3. Pressing out the pin, sometimes cuts off extruded material from the pin bores. Inspect for loose extruded material in the seal cavities after the pins have been removed. Assembly 1. Use the following Weld Procedure as a replacement for the procedure given under the topic entitled "Link Section Buildup with 8T7780 Track repair Group" in the reference Special Instruction. 2. Equalize the pin projection in each joint to be repaired. Set each joint to zero end play. Weld Procedure NOTE: Equalizing the projection at each end of the pin permits an approximate 6-10 mm (1/4-3/8 in) fillet at each end of the pin. Pin projection (solid end of pin shown). 1. Use an E6011 Weld Electrode to make a weld bead for approximately 120 degree (13 the distance) around the circumference of the pin end as shown. 2. Immediately after the 120 degree weld bead is completed, put a wet paper towel (1U9579 Paper Towel) directly om the weld bead. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/29

https://www.ebooklibonline.com Hello dear friend! Thank you very much for reading. Enter the link into your browser. The full manual is available for immediate download. https://www.ebooklibonline.com