- Track-Type Tractor
- D10R (S/N: 3KR1-UP; AKT1-UP)
- D10T (S/N: RJG1-UP)
- D6H (S/N: 8KB1-UP; 4RC1-UP; 6FC1-UP; 3ZF1-UP; 5HF1-UP; 6CF1-UP; 3YG1-UP)
- D6H Series II (S/N: 8ZJ1-UP; 9KJ1-UP; 5KK1-UP; 6CK1-UP; 1YL1-UP; 2BL1-UP)
- D6N (S/N: MG51-UP; GB61-UP; PBA1-UP; LJR1-UP; PER1-UP)
- D6R (S/N: 2HM1-UP; 4FM1-UP; 8TM1-UP; 9BM1-UP; 2YN1-UP; 3ZN1-UP; 4HN1-UP; 4MN1-UP; 5LN1-UP; 6JN1-UP; 7KN1-UP; 8LN1-UP; 8XN1-UP; 9MN1-UP; 9PN1-UP; DMP1-UP; 4JR1-UP; 4TR1-UP; 6FR1-UP; 6MR1-UP; 7GR1-UP; 9ZS1-UP; S6T1-UP; 1RW1-UP; S6X1-UP; S6Y1-UP)
- D6R Series II (S/N: BNC1-UP; CAD1-UP; ADE1-UP; BLE1-UP; ACJ1-UP; BMJ1-UP; BRJ1-UP; BNL1-UP; AEM1-UP; AFM1-UP; AGM1-UP; BPM1-UP; AEP1-UP; BLT1-UP; FDT1-UP; AAX1-UP; BMY1-UP; BPZ1-UP)
- D6R Series III (S/N: GJB1-UP; WCB1-UP; HDC1-UP; TBC1-UP; HCD1-UP; HKE1-UP; WRG1-UP; LGP1-UP; MRT1-UP)
- D6R2 (S/N: PPP1-UP; SSS1-UP; TTT1-UP)
- D6T (S/N: JHB1-UP; KSB1-UP; ZEB1-UP; ZJB1-UP; JZC1-UP; SMC1-UP; DTD1-UP; JWD1-UP; LBD1-UP; LAE1-UP; DJG1-UP; WCG1-UP; WFH1-UP; EJJ1-UP; LKJ1-UP; SLJ1-UP; GMK1-UP; RRK1-UP; KJL1-UP; SKL1-UP; TSM1-UP; WLM1-UP; PLR1-UP; GCT1-UP; JRW1-UP; RCW1-UP; RLW1-UP; LAY1-UP; PEZ1-UP)
- D7E (S/N: TJA1-UP; MDB1-UP; SCG1-UP; TAN1-UP)
- D7H (S/N: 2SB1-UP; 4AB1-UP; 5WB1-UP; 5BF1-UP; 2RG1-UP; 3XG1-UP; 4FG1-UP; 77Z1-UP; 79Z1-UP; 80Z1-UP; 82Z1-UP)
- D7R (S/N: DSH1-UP; BPK1-UP; BNM1-UP; BRM1-UP; 9HM1-UP; DLN1-UP; 2EN1-UP; 3DN1-UP; DJR1-UP; 2HR1-UP; 3ZR1-UP; 5MR1-UP; BPT1-UP; BNX1-UP; CBZ1-UP; 5KZ1-UP)
- D7R Series II (S/N: EEA1-UP; KNA1-UP; AEC1-UP; AFG1-UP; ABJ1-UP; AGN1-UP; ACS1-UP; ADW1-UP)
- D8R (S/N: 7XM1-UP; 9EM1-UP; 6YZ1-UP)
- D8R Series II (S/N: AKA1-UP)
- D8T (S/N: J8B1-UP; MLN1-UP; FCT1-UP; KPZ1-UP)
- D9R (S/N: ABK1-UP; ACL1-UP; 7TL1-UP; 8BL1-UP; WDM1-UP)
- D9T (S/N: TWG1-UP; RJS1-UP)
- D10T (S/N: RJG1-UP)
Introduction
Summary of Changes in SEBF8616 | |
Revision | Description |
12 | Added serial number prefixes for New Product Introduction. |
11 | Added serial number prefixes for New Product Introduction. |
10 | Added serial number prefixes for New Product Introduction. |
09 | Added D6R2 to tables.
Added serial number prefixes for New Product Introduction. |
08 | Added serial number prefixes for New Product Introduction. |
© 2019 Caterpillar All Rights Reserved. This guideline is for the use of Caterpillar dealers only. Unauthorized use of this document or the proprietary processes therein without permission may be violation of intellectual property law. Information contained in this document is considered Caterpillar: Confidential Yellow.
This Undercarriage Reconditioning Bulletin contains the necessary information to allow a dealer to establish a parts reusability program. Reuse and salvage information enables Caterpillar dealers and customers to benefit from cost reductions. Every effort has been made to provide the most current information that is known to Caterpillar. Continuing improvement and advancement of product design might have caused changes to your product which are not included in this publication. This Undercarriage Reconditioning Bulletin must be used with the latest technical information that is available from Caterpillar.
For questions or additional information concerning this guideline, submit a form for feedback in the Service Information System. To address an urgent issue, use the following resources to communicate your request to Caterpillar Repair Process Engineering:
For technical questions when using this document, work with your Dealer Technical Communicator (TC).
To report suspected errors, inaccuracies, or suggestions regarding the document, submit a form for feedback in the Service Information System (SIS Web) interface
Summary
This guideline provides the Disassembly and Assembly information for landfill idlers. These idlers have an extra plate on the retainer to aid in keeping debris out of the Duo-Cone seal. The rope seal that was previously used for landfill applications has been eliminated. The rope seal should be removed on idlers that are being rebuilt. New idlers do not have the groove in the retainer for the rope seal.
References
Reference: Undercarriage Reconditioning Guide, SEBF8599, "Undercarriage Reconditioning Guide Binder (Subscription Only)"
Reference: Undercarriage Reconditioning Bulletin, SEHS8515, "Repair Procedure for Retainer Assemblies on Track Idlers and Rollers"
Reference: Undercarriage Reconditioning Bulletin, SEBF8511, "Reusability Recommendations for Duo-Cone Seals"
Reference: Undercarriage Reconditioning Bulletin, SEBF8586, "Removal, Installation, and Conditioning of Idler Bearings and Track Roller Bearings"
Reference: Undercarriage Reconditioning Bulletin, SEBF8576, "Idler Oil Fill Volume"
Reference: Technical Information Bulletin, TIBU6688, "Recommended Usage Of Cat Final Drive and Axle Oil Synthetic (FDAO Syn) For the Idlers On Certain D10R, D10T, D11R, and D11T Track-Type Tractors"
Safety
Illustration 1 | g02139237 |
Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly.
This bulletin may contain hazardous steps. A safety alert symbol like the one below is used to identify a hazard.
Warning messages identify a specific, imminent, latent, hazard that has a reasonable probability of resulting in personal injury or death if the warning is ignored.
Do not attempt to disassemble or assemble this machine until you read and understand the disassembly and assembly instructions. Improper disassembly and assembly procedures could result in injury or death. |
Inspect all threaded components before use. Damaged threads may fail under hydraulic pressure. Broken threads may release flying objects that are propelled with great force. Personal injury or death can occur if struck by flying objects. |
Do not stand near the hydraulic press while the press is in operation. A component that slips or breaks under pressure may fly into the air with great force. Personal injury or death can occur if struck by flying objects. |
Canceled Part Numbers and Replaced Part Numbers
This document may not include all canceled part numbers and replaced part numbers. Use NPR on SIS for information about canceled part numbers and replaced part numbers. NPR will provide the current part numbers for replaced parts.
Required Tooling
Required Tools | |
Part Number | Description |
Dial Caliper As | |
Dial Indicator Test Group | |
Grease Petro Gel
O-Ring Assembly Compound |
|
Test and Fill Cart Gp | |
Pressure Gauge Tool Gp | |
Loctite® C5-A® | Copper-based Anti-Seize Lubricant |
Brush | |
Installer Plug | |
Gage-Feeler | |
Towel-Shop | |
Wipers | |
Installer GP-Stopper | |
Installer GP-Stopper | |
Seal Installer Assembly | |
Seal Installer Assembly | |
Seal Installer Assembly | |
Spin Socket | |
Spin Socket | |
Spin Socket | |
Driver/ Tooling for End Collar | |
Driver/ Tooling for End Collar | |
Driver/ Tooling for End Collar | |
Driver/ Tooling for End Collar | |
Driver/ Tooling for End Collar |
(1) | Idlers with 9G-4872 Stoppers, D10N, D10R, D10T, D9N, D9R, D9T, D8N, D8R, D8T |
(2) | Idlers with 9G-5664 Stoppers, D7E, D7H, D7R, D6H, D6R, D6R2, D6T |
(3) | D10N, D10R, D10T |
(4) | D9N, D9R, D9T, D8N, D8R, D8T |
(5) | D7E, D7H, D7R, D6H, D6R, D6R2, D6T |
(6) | D9N, D9R, D9T |
(7) | D8N, D8R, D8T |
(8) | D7E, D7H, D7R |
(9) | D6H, D6R, D6R2, D6T |
Disassembly of Idlers with Conventional Duo-Cone Seals
Illustration 2 | g01257575 |
(1) Retainer
(2) Plate (3) Collar (4) O-Ring on the collar (5) Duo-Cone seal group (6) Retainer bolt |
- Remove the plastic plug and the rubber stopper from the end of the shaft to drain the oil.
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Illustration 4 g01259134 - Remove bolts (6) from the plate and the retainer on both sides of the idler.
- Remove plates (2) from both sides of the idler.
- Use a hydraulic press to remove the collars from both sides of the idler.
Note: Use approximately
22240 N (5000 lb) to66720 N (15000 lb) to remove the collar. - Remove retainer (1) and the thrust washers from both sides of the idler.
Note: Thrust washers may be pinned on the retainer assembly. Refer to Undercarriage Reconditioning Bulletin, SEHS8515, "Repair Procedure for Retainer Assemblies on Track Idlers and Rollers" to remove the thrust washer from the retainer.
Show/hide tableIllustration 5 g01531253 Show/hide tableIllustration 6 g02183514 - Use 8T-0447 Dial Caliper to measure inside diameter (AA) of the end collar and shaft diameter (BB). Refer to Table 3 and Table 4 for the correct dimensions. Replace the components if the components are not within specifications.
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Table 3 Specifications for the End Collar Sales Model Part Number of the End Collar Inner Diameter
(AA)D10N
D10R
D10T261-9674 74.4 ± 0.02 mm (2.93 ± 0.001 inch) D9N
D9R
D9T
D8N
D8R
D8T261-9673 68.4 ± 0.02 mm (2.70 ± 0.001 inch) D7E
D7H
D7R166-3317 58.4 ± 0.02 mm (2.30 ± 0.001 inch) D6H
D6R
D6R2
D6T167-1951 58.4 ± 0.02 mm (2.30 ± 0.001 inch) D6N 189-2170 46.4 mm ± 0.02 mm (1.827 inch ± 0.001) Show/hide tableTable 4 Specifications for the Shaft Sales Model Part Number of the Shaft Diameter
(BB)D10N
D10R
D10T154-3308 74.5 ± 0.02 mm (2.93 ± 0.001 inch) D9N
D9R
D9T154-3309 68.5 ± 0.02 mm (2.70 ± 0.001 inch) D8N
D8R
D8T154-3307 68.5 ± 0.02 mm (2.70 ± 0.001 inch) D7E 351-8927 58.5 ± 0.02 mm (2.30 ± 0.001 inch) D7H
D7R131-3935 58.5 ± 0.02 mm (2.30 ± 0.001 inch) D6H
D6R
D6R2
D6T149-2494 58.5 ± 0.02 mm (2.30 ± 0.001 inch) D6N 161-7350 46.5 ± 0.02 mm (1.83071 ± 0.001 inch) Show/hide tableIllustration 7 g01257852 - Clean the old rope seal out of the retainer. Removal of the rope seal may be difficult if the seal is not in good condition.
Note: The rope seal is located in the plate on D7 idlers. Refer to Illustration 2.
Show/hide tableIllustration 8 g01257854 - Remove the large O-ring seals from each retainer assembly.
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Illustration 9 g01257865 - Remove the O-rings from each end collar assembly.
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Illustration 10 g01579126 Show/hide tableIllustration 11 g01257867 - Remove the Duo-Cone seals from the retainer and end collar assemblies.
- Inspect each set of Duo-Cone seals for reusability. Refer to Undercarriage Reconditioning Bulletin, SEBF8511, "Reusability Recommendations for Duo-Cone Seals".
Note: If the seals are reusable, the seals must be kept in matching pairs.
Show/hide tableIllustration 12 g01257876 Note: Measure the clearance between the shaft and bearing with a 8H-8581 Gage-Feeler.
Show/hide tableIllustration 13 g01258463 (L) Inside diameter of the bore of the idler
(M) Width of idler hub
(N) Bearing assembly inside diameterNote: Measure the clearance between the shaft and the bearing using the dimensions in Table 6 and Table 7.
- Measure the clearance between the shaft and the bearing. Refer to Table 5 for the correct dimensions.
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Table 5 Clearance Between the Shaft and the Bearing Sales Model Clearance Minimum/Maximum D10N
D10R
D10T
D9N
D9R
D9T
D8N
D8R
D8T
D7E
D7H
D7R0.44 mm to 0.56 mm (0.017 inch to 0.022 inch) D6H
D6R
D6R2
D6T0.30 mm to 0.40 mm (0.012 inch to 0.016 inch) D6N 0.52 mm to 0.30 mm (0.021 inch to 0.012 inch) Note: Table 6 and Table 7 include the dimensions to determine the clearance between the shaft and the bearing. Refer to Illustration 13. The clearance may be checked with a 8H-8581 Gage-Feeler or using the dimensions in Table 6 and Table 7.
If the clearance measurements are not acceptable, an evaluation will be necessary to determine the problem. The following procedures can be taken to correct the problem:
- Recondition the existing bearing bore.
- Recondition the bore of the idler and install new bearings.
- Replace the idler shaft.
Note: Refer to Undercarriage Reconditioning Bulletin, SEBF8586, "Removal, Installation, and Conditioning of Idler Bearings and Track Roller Bearings".
Show/hide tableTable 6 Dimensions for Rebuilding the Idler Sales Model Idler Assembly Idler Inside Diameter of the Bore
(L)Width of the Hub
(M)Part Number for the Bearing Inside Diameter of the Bearing Assembly
(N)D10N
D10R
D10T7T-0961 9W-6284 142.85 ± 0.04 mm (5.624 ± 0.002 inch) 326.00 ± 0.13 mm (12.835 ± 0.005 inch) 9W-4194 136.78 ± 0.03 mm (5.385 ± 0.001 inch) D9N
D9R
D9T7T-2770 9W-4468 133.32 ± 0.04 mm (5.250 ± 0.002 inch) 290.00 ± 0.13 mm (11.417 ± 0.005 inch) 9W-9499 127.25 ± 0.03 mm (5.010 ± 0.001 inch) D8N
D8R
D8T6Y-0556 6Y-0555 133.32 ± 0.04 mm (5.250 ± 0.002 inch) 250.00 ± 0.13 mm (9.843 ± 0.005 inch) 154-3298 127.25 ± 0.03 mm (5.010 ± 0.001 inch) 6Y-0553 6Y-0552 133.32 ± 0.04 mm (5.250 ± 0.002 inch) 250.00 ± 0.13 mm (9.843 ± 0.005 inch) 154-3298 127.25 ± 0.03 mm (5.010 ± 0.001 inch) D7E 192-0223 192-0222 133.32 ± 0.04 mm (5.249 ± 0.002 inch) 216.00 ± 0.13 mm (8.504 ± 0.005 inch) 6Y-1757 127.25 ± 0.03 mm (5.010 ± 0.001 inch) D7H
D7R192-0215 192-0214 133.32 ± 0.04 mm (5.250 ± 0.002 inch) 216.00 ± 0.13 mm (8.504 ± 0.005 inch) 6Y-1757 127.25 ± 0.03 mm (5.010 ± 0.001 inch) 192-0223 192-0222 133.32 ± 0.04 mm (5.250 ± 0.002 inch) 216.00 ± 0.13 mm (8.504 ± 0.005 inch) 6Y-1757 127.25 ± 0.03 mm (5.010 ± 0.001 inch) D6H
D6R
D6R2
D6T202-4303 202-4302 114.28 ± 0.043 mm (4.500 ± 0.002 inch) 199.00 ± 0.13 mm (7.835 ± 0.005 inch) 9P-2245 108.06 ± 0.02 mm (4.254 ± 0.001 inch) 202-4295 202-4294 114.28 ± 0.043 mm (4.500 ± 0.002 inch) 199.00 ± 0.13 mm (7.835 ± 0.005 inch) 9P-2245 108.06 ± 0.02 mm (4.254 ± 0.001 inch) D6N 323-1169 318-2951 102.0 ± 0.04 mm (4.02± 0.002 inch) 189.0 ± 0.13 mm (7.44 ± 0.005 inch) 9P-1360 95.96 ± 0.04 mm (3.778 ± 0.002 inch) Show/hide tableTable 7 Specifications for the Shaft Sales Model Idler Assembly Shaft Outer Diameter of the Shaft Length of the Bearing Surface D10N
D10R
D10T7T-0961 154-3308 136.28 ± 0.03 mm (5.365 ± 0.001 inch) 301.00 ± 0.10 mm (11.850 ± 0.004 inch) D9N
D9R
D9T7T-2770 154-3309 126.75 ± 0.03 mm (4.500 ± 0.001 inch) 265.00 ± 0.10 mm (10.433 ± 0.004 inch) D8N
D8R
D8T6Y-0556 154-3307 126.75 ± 0.03 mm (4.500 ± 0.001 inch) 225.00 ± 0.10 mm (8.858 ± 0.004 inch) 6Y-0553 154-3307 126.75 ± 0.03 mm (4.500 ± 0.001 inch) 225.00 ± 0.10 mm (8.858 ± 0.004 inch) D7E 192-0223 351-8927 126.75 ± 0.03 mm (4.500 ± 0.001 inch) 191.00 ± 0.10 mm (7.520 ± 0.004 inch) D7H
D7R192-0215 131-3935 126.75 ± 0.03 mm (4.500 ± 0.001 inch) 191.00 ± 0.10 mm (7.520 ± 0.004 inch) 192-0223 131-3935 126.75 ± 0.03 mm (4.500 ± 0.001 inch) 191.00 ± 0.10 mm (7.520 ± 0.004 inch) D6H
D6R
D6R2
D6T202-4303 149-2494 107.71 ± 0.03 mm (4.241 ± 0.001 inch) 160.00 ± 0.05 mm (6.300 ± 0.002 inch) 202-4295 149-2494 107.71 ± 0.03 mm (4.241 ± 0.001 inch) 160.00 ± 0.05 mm (6.300 ± 0.002 inch) D6N 323-1169 161-7350 95.43 ± 0.03 mm (3.757 ± 0.001 inch) 150.00 ± 0.10 mm (5.905 ± 0.004inch) Show/hide tableIllustration 14 g01258576 - Remove the shaft from the idler. If necessary, attach a hoist to help remove the shaft. Take precaution not to damage the shaft surface during removal.
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NOTICE Correct assembly and installation procedures should be followed when using conventional Duo-Cone seals. Many failures are the result of mistakes made during assembly and installation of the seals.
- Wash all components to remove debris from the components.
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Illustration 15 g01579194 - Use isopropyl alcohol to clean the components. Dry with 162-5791 Shop- Towel or use 265-2256 Wipers.
Illustration 3 | g02102144 |
Assembly of Idlers with Conventional Duo-Cone Seals
- Apply 369-9450 O-Ring Assembly Compound to the new O-rings to install the new O-rings into the retainer and the end collars.
Note: Always use new O-rings in the retainers and end collars.
Show/hide tableIllustration 18 g01258589 - Inspect the Duo-Cone seals for reusability. Refer to Undercarriage Reconditioning Bulletin, SEBF8511, "Reusability Recommendations for Duo-Cone Seals".
Note: If the Duo-Cone seals are reusable, the Duo-Cone seals must be kept in matching pairs.
Show/hide tableNOTICE Misalignments, twists and bulges of the toric ring will cause Duo-Cone seal failures. If any of these occur, perform the assembly process over from the beginning.
- If the Duo-Cone seals are reused, replace the toric rings. Never reuse toric rings.
Note: Make sure that the toric ring is not twisted on the seal ring.
- Install the Duo-Cone seal in the proper seal installer. Refer to Table 8 for the correct seal installer.
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Table 8 Duo-Cone Seal Installers Sales Model Part Number D10N
D10R
D10T129-1340 D9N
D9R
D9T
D8N
D8R
D8T227-4755 D7E
D7H
D7R
D6H
D6R
D6R2
D6T136-6813 224-9467 D6N 179-7208 - Lightly dampen the lower half of the toric ring with isopropyl alcohol.
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Illustration 19 g01258634 - Use a firm, even pressure to install the Duo-Cone seals into the end collars.
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Illustration 20 g02140680 - Use a firm, even pressure on the installation tool to install the Duo-Cone seals in the retainer.
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Illustration 21 g01584856 Show/hide tableIllustration 22 g01258642 - Use 8T-0447 Dial Caliper to check the height of the assembled Duo-Cone seals in the retainers and the end collars. Take measurements at four 90° locations. The assembled height should be
11.50 mm ± 0.60 mm (0.453 inch ± 0.024 inch) .Note: The difference in height must not exceed
1.0 mm (0.04 inch) . If the assembled height does not meet specifications, the Duo-Cone seals will need to be reinstalled. - Lightly lubricate the idler bearings with the lubricant being sealed in the idler.
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Illustration 23 g01258656 - Carefully install the shaft into the idler.
Note: The shaft may scrape bronze particles from the bearing. The bronze particles will cause failure in the idler.
Note: Follow the correct procedure for pinned or not pinned thrust washers.
Show/hide tableIllustration 24 g01258663 The thrust ring is pinned onto the retainer. Note: Install the thrust washer onto the retainer assembly. Refer to Undercarriage Reconditioning Bulletin, SEHS8515, "Repair Procedure for Retainer Assemblies on Track Idlers and Rollers" for the procedures to pin thrust washers onto the retainer assembly.
Show/hide tableIllustration 25 g01258662 The thrust ring is not pinned on the retainer. - Install the thrust washers on both ends of the idler shaft if the thrust washers are not pinned on the retainer assembly.
- Install the retainer assemblies over the shaft and carefully move the retainer into the final position.
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Illustration 26 g01258682 - Install two bolts at 180° and firmly tighten the bolts.
- Lubricate the circumference of the stopper with a lightweight oil. Use the correct installer tool to install the stopper in the end of the shaft. Refer to Table 9 for the correct installer tool. The stopper must be installed
7 ± 15 mm (0.28 ± 0.59 inch) below the surface of the shaft.Show/hide tableTable 9 Installer Tool Group Sales Model Part Number D10N
D10R
D10T
D9N
D9R
D9T
D8N
D8R
D8T228-0600 D7E
D7H
D7R
D6H
D6R
D6R2
D6T
D6N228-0597 Show/hide tableIllustration 27 g01258675 Show/hide tableIllustration 28 g01258676 - Wipe the entire seal face of the Duo-Cone seals in the retainers and the end collars with a clean towel. Use 162-5791 Shop- Towel or 265-2256 Wipers .
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NOTICE Never permit oil to get on the toric rings or ramps before both seal rings are put together in their final assembled position.
Show/hide tableIllustration 29 g01258684 - Use Tooling 1U-9977 Brush to apply a thin film of lubricant being sealed in the idler on the entire Duo-Cone seal face.
Note: Reduce the risk of airborne contaminants to the face of the seal. Minimize the time between the application of oil to the seal face and assembly of the collar on the retainer assembly.
Show/hide tableIllustration 30 g01258689 - Position the end collars on the shaft.
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Illustration 31 g01258691 - Use a hydraulic press to press the end collar into the final position. Refer to Table 10 for the correct tooling for the end collar.
Note: Use approximately
22240 N (5000lb) to install the end collar.Show/hide tableTable 10 Tooling for the End Collar Sales Model Part Number D10N
D10R
D10T170-5406 D9N
D9R
D9T170-5409 D8N
D8R
D8T170-5408 D7E
D7H
D7R170-5411 D6H
D6R
D6R2
D6T170-5412 D6N 201-1581 - Repeat Step 18 to install the other end collar.
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Illustration 32 g01258717 - Check end play by using 8T-5096 Dial Indicator Test Group on the assembled idler. Install the magnetic base onto the face of the retainer assembly. Adjust the arms and the indicator as shown. Refer to Table 11 for the correct dimensions.
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Table 11 End Play Dimensions Sales Model End Play Minimum to Maximum D10N
D10R
D10T
D9N
D9R
D9T
D8N
D8R
D8T0.33 mm (0.013 inch) to1.19 mm (0.047 inch) D7E
D7H
D7R0.38 mm (0.015 inch) to1.24 mm (0.048 inch) D6H
D6R
D6R2
D6T0.25 mm (0.010 inch) to1.25 mm (0.050 inch) D6N 0.38 mm (0.015 inch) to1.24 mm (0.048 inch) Show/hide tableIllustration 33 g02182855 - Gently push the shaft away from the dial indicator. The shaft will stop when contact is made with the internal thrust washer on the opposing retainer assembly. When the shaft makes contact, apply preload to the dial indicator and adjust the dial to zero as shown.
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Illustration 34 g02182845 - Gently pull the shaft towards the dial indicator. The shaft will stop when contact is made with the internal thrust washer on the retainer assembly that the magnetic base is attached to. The dial indicator will show the amount of end play between the shaft thrust faces and the internal thrust washers.
Note: If the end play is incorrect, the idler must be disassembled.
Show/hide tableIllustration 35 g01258721 - Use the correct spin socket to spin the shaft. Refer to Table 12 for the correct spin socket. The shaft should be spun 20 revolutions in each direction at a maximum of 100 rpm.
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Table 12 Spin Socket Tooling Sales Model Part Number D10N
D10R
D10TFT1909 D9N
D9R
D9T
D8N
D8R
D8TFT1910 D7E
D7H
D7R
D6H
D6R
D6R2
D6T
D6NFT1911 - Remove the two bolts that were installed earlier to hold the retainer assembly in place.
- Install the plates on both sides of the idler.
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Illustration 36 g01259143 - Use Loctite® C5-A® lubricant on bolt threads. Install the bolts into the plates and retainers and torque the bolts to the correct torque value. Refer to Table 13 for the correct torque.
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Table 13 Torque Specifications Sales Model Dynamic Assembly Torque D10N
D10R
D10T135 ± 20 N·m (100.0 ± 15.0 lb ft) D9N
D9R
D9T
D8N
D8R
D8T
D7E
D7H
D7R85 ± 15 N·m (63.0 ± 11.0 lb ft) D6H
D6R
D6R2
D6T
D6N55 ± 10 N·m (41.0 ± 7.0 lb ft)
Illustration 16 | g01258582 |
Illustration 17 | g01258583 |
Test and Fill
- Use 170-5664 Test and Fill Cart Gp in order to evaluate and fill the idler.
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Illustration 38 g01585600 - If 170-5664 Test and Fill Cart Gp is not available. Use FT-2724 Pressure Gauge Tool Gp in order to perform a pressure test on the idler.
- Introduce nitrogen into the oil cavity to a pressure of
138 kPa (20.0 psi) . - Turn the ball valve to the shutoff position.
- Close the pressure gauge.
- Observe the pressure for 10 seconds. A pressure drop
3.4 kPa (0.50 psi) or less is acceptable.
- Introduce nitrogen into the oil cavity to a pressure of
- Add the correct quantity of oil to the idler. Refer to Table 14 or Undercarriage Reconditioning Bulletin, SEBF8576, "Idler Oil Fill Volume" for the correct oil volume.
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Table 14 Sales Model Idler Assembly Oil Volume Oil Weight CAT Oil Part Number D10N
D10R
D10T7T-0961 850 ± 20 mL (28.7 ± 0.68 oz) Cat FDOA Syn Oil 18L
206-5211
-
208 L
206-5212
-
5 gal
208-2390
-
55 gal
198-7450D9N
D9R
D9T7T-2770 850 ± 20 mL (28.7 ± 0.68 oz) SAE 5W 40 347-8470 775 ± 40 mL (26.2 ± 1.35 oz) SAE 15W 40 DEO 3E-9712 775 ± 40 mL (26.2 ± 1.35 oz) SAE 15W 40 DEO 347-8470 SAE 5W 40 D8N
D8R
D8T6Y-0553 600 ± 15 mL (20.3 ± 0.5 oz) SAE 5W 40 347-8470 600 ± 30 mL (20.3 ± 1.01 oz) SAE 15 W 40 DEO 3E-9712 SAE 5W 40 347-8470 6Y-0556 600 ± 15 mL (20.3 ± 0.5 oz) 600 ± 30 mL (20.3 ± 1.01 oz) SAE 15 W 40 DEO 3E-9712 D7E 192-0223 650 ± 15 mL (22.0 ± 0.50 oz) SAE 15 W 40 DEO 3E-9712 D7H 192-0215 650 ± 15 mL (22.0 ± 0.50 oz) SAE 15 W 40 DEO 3E-9712 192-0223 660 ± 35 mL (22.4 ± 1.19 oz) 192-0223 650 ± 15 mL (22.0 ± 0.50 oz) SAE 5W 40 347-8474 D7R 192-0215 650 ± 35 mL (22.0 ± 1.19 oz) SAE 15 W 40 DEO 3E-9712 192-0223 650 ± 15 mL (22.0 ± 0.50 oz) D6H 202-4295 540 ± 15 mL (18.4 ± 0.50 oz) SAE 15 W 40 DEO 3E-9712 540 ± 25 mL (18.4 ± 0.85 oz) 202-4303 540 ± 15 mL (18.4 ± 0.50 oz) D6N 323-1169 440 ± 10 mL (15 ± 0.3 oz) SAE 15 W 40 DEO 3E-9712 D6R
D6R2202-4295 540 ± 15 mL (18.4 ± 0.50 oz) SAE 15 W 40 DEO 3E-9712 540 ± 25 mL (18.4 ± 0.85 oz) 202-4303 540 ± 15 mL (18.4 ± 0.50 oz) D6T 202-4295 540 ± 15 mL (18.4 ± 0.50 oz) SAE 15 W 40 DEO 3E-9712 202-4303 540 ± 15 mL (18.4 ± 0.50 oz) 202-4295 540 ± 25 mL (18.4 ± 0.85 oz) Show/hide tableIllustration 39 g01585603 - Use 5P-7419 Installer Plug Tool to install the plug to the correct depth. The correct height of the plug is
0 mm to 5 mm (0.0 inch to 0.2 inch) above the surface of the stopper.Note: The plug must not be recessed below the stopper after installation.
Show/hide tableIllustration 40 g01259148 - Tap the end of the idler shaft to determine if the idler contains oil. If the shaft thumps, the idler contains oil. The idler does not contain oil if there is a ring.
Illustration 37 | g01585599 |
NOTICE |
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Do not allow a surge of air to enter the idler and do not use pressure in excess of |
Disassembly and Assembly Procedures for Landfill Idlers with Inverted Duo-Cone Seals
Illustration 41 | g01259097 |
(1) Retainer
(2) Seal guard (3) Duo-Cone seal (4) Snap ring (5) Retainer bolt |
The seal guard is used to provide improved protection for the Duo-Cone seal. Refer to Service Magazine, SEPD0161 for more information. The procedures for Disassembly and Assembly for landfill idlers with the inverted Duo-Cone seal are similar to idlers with the inverted Duo-Cone seals. Except for the installation and removal of an extra seal guard (2) and snap ring (4).
The seal guard should be replaced if the guard is bent or the center hole is enlarged or worn.
Disassembly
- Use a suitable tool to remove snap ring (4).
- Remove guard (2) from the idler assembly.
- Clean out all the old grease under the seal guard.
Note: Refer to Undercarriage Reconditioning Bulletin, SEBF8582, "Disassembly and Assembly Procedures for Idlers with Inverted Duo-Cone Seals" for further disassembly procedures.
Assembly
Note: Refer to Undercarriage Reconditioning Bulletin, SEBF8582, "Disassembly and Assembly Procedures for Idlers with Inverted Duo-Cone Seals" to assemble the idler.
- Remove the plug from the retainer assembly on both sides of the idler.
- Install Tooling (H) into one of the holes. Leave the other hole open.
- Fill the cavity between the Duo-Cone seal and the guard through the grease fitting with 2P-9066 Multipurpose Grease.
Note: Fill the cavity slowly to prevent displacement of the Duo-Cone seal.
Note: Grease will flow from the open hole when the cavity is full.
- Remove the fitting and install the plugs into both holes.